Networks

NESO is consulting on GSR037, a housekeeping modification to the System Quality of Supply Standard (SQSS) that restructures the definitions section into a table, renumbers Section J, and applies consistent formatting throughout. No substantive requirements change; the Proposer flags sections 6.1, 11, and J for careful review to confirm restructuring has not inadvertently altered obligations. Standard Governance route, no Workgroup, no system or process impact.

NESO has raised SQSS modification GSR037 to reformat and tidy the System Quality of Supply Standard for readability. The proposal is administrative housekeeping with no change to technical security or planning standards. Standard Governance, proceeding to Code Administration Consultation.

CMP477 proposes a CUSC change to allow a single connection modification request to span more than one Transmission Owner area, rather than forcing developers to raise separate applications when their works touch the boundary between TO networks. Raised by Andrew Urquhart on 19 May 2026 as an Urgent modification under an Authority-agreed timetable, status Proposal Raised. NESO classifies the impact as Medium across generators, demand customers, TOs (including CATOs) and consumers.

Ofgem republishes the UK Competition Network's running list of Competition Act 1998 cases across all regulated sectors since 2014. The only energy entries are previously concluded matters: SGN gas connections (commitments accepted Dec 2025), wholesale trading (June 2019), PayPoint prepayment top-ups (Aug 2021), domestic supply Chapter I infringement (May 2019), and SSE connections (commitments accepted Nov 2016). No new investigation, decision, or rule.

CMP474 proposes to codify in the CUSC objective criteria and a defined process for resetting the Fixed BSUoS Price mid-period, replacing the current 'reasonable endeavours' standard that allows NESO to revise tariffs with as little as five business days' notice. NESO would be required to publish a formal market notice within 5 business days when forecast utilisation of the £300m BSUoS Working Capital Facility exceeds 50%, and any tariff reset must be issued at least 3 months before the start of a price cap period (2 months transitional for October-December 2026) so it can flow into Ofgem's default tariff calculation. Reset prices must restore working capital utilisation to no less than 75% for a single quarter or 50% for two-to-three quarters; no cap on the size of the £/MWh increase.

CMP474 proposes to write into the CUSC an explicit process for NESO to reset the Fixed BSUoS price mid-period, rather than the current arrangement where the fixed tariff runs for a defined window without a formal revision mechanism. The modification is being progressed as urgent with an Authority decision, and is currently at Workgroup Consultation following four workgroup meetings between 30 April and 15 May 2026. Sponsor is Gregory Edwards; high impact flagged on Suppliers and Transmission System Operators.

CMP475 amends the CUSC to let NESO reopen either of the two fixed BSUoS price periods before the Working Capital Facility breaches its -£300m floor, and introduces a 'top-up tariff' so NESO can over-recover and return the WCF toward zero rather than just hold it at the level reached when a reset was triggered. NESO blames the last six weeks of balancing cost volatility on Middle East conflict pricing and constraints model changes, and says the 12-month fixed tariff with seasonal sub-periods (introduced via CMP408/CMP415 from 1 April 2025) is no longer fit. Urgent governance route, workgroup consultation closes 25 May 2026, implementation 31 July 2026.

NESO has raised GC0186, a Grid Code modification updating restoration requirements following GC0156's implementation of the Electricity System Restoration Standard. The proposal introduces Regional Restoration Plans, equal treatment of NGET, SPT and SHET during restoration, requirements for Network Operators to switch at sufficient speed, and tightened testing and data obligations. Currently at Workgroup Nominations stage, governance route still to be decided by the Panel.

Ofgem is switching the DCC price control from ex-post (recover what you spent, subject to challenge) to ex-ante (revenue set upfront for the period) for the first time, covering November 2026 to March 2028. The consultation publishes draft determinations of DCC's Required Revenue for the period and runs to 14 July 2026. DCC runs the monopoly smart-metering communications network and recovers its costs from energy suppliers, who pass them through to bills.

Ofgem has been appointed administrator of the government's Bill Discount Scheme, which gives households living near new electricity transmission infrastructure up to £250 per year off their bills. DESNZ aims to lay regulations in Summer 2026, with first payments in early 2027. Ofgem will consult on delivery mechanics (eligibility, compliance) for six weeks from July 2026.

Ofgem has been named scheme administrator for DESNZ's bill discount scheme, which pays households living near new or significantly upgraded electricity transmission infrastructure up to £250 per year for up to 10 years. This is an administrative appointment; the scheme itself, sitting alongside Community Funds, was already established as a community benefit package for transmission hosts. No change to the scheme parameters, eligibility, or funding mechanism.

The Secretary of State has used Energy Act 2023 section 245(1)(a) and (e) powers to insert new Standard Licence Condition 11C into the Electricity Supply Licence and a new Schedule 35 into the Retail Energy Code, mandating that electricity suppliers expose tariff and export-tariff pricing data via a standardised API. The licence condition takes legal effect on 18 February 2027; suppliers must build a compliant Tariff Interoperability API, register a Supplier Endpoint with RECCo by 31 December 2026, and meet 99.9% monthly availability with a 95th-percentile 1-second response time at steady-state volume. Smaller non-domestic-only suppliers below 100,000 meter points are exempt, as are block tariffs, current-transformer-metered sites, and bespoke charges.

Ofgem is consulting on its assessment of SP Energy Networks' June 2025 Electricity System Restoration re-opener application, which seeks additional RIIO-ED2 allowances for black-start and system restoration capability on its distribution network. The re-opener is a pre-agreed adjustment mechanism within the 2023-2028 price control, not a new rule. The consultation document with Ofgem's proposed allowance figures closes 22 June 2026.

Muirhall Energy has raised CMP471, a temporary CUSC amendment letting Users adjust connection dates and contract elements before the first CMP434 Gated Application Window and the 1 April 2027 liability trigger. The CUSC Panel unanimously recommended urgent treatment on 15 May 2026; if Ofgem agrees by 19 May, implementation lands 31 July 2026 instead of an undated 2027 slot. Without it, queue holders enter Gate 2 carrying contractual connection dates that no longer match deliverable programmes.

NESO has reissued STCP 11-1 (Outage Planning) as Issue 013, incorporating System Access Reform changes and a revised Emergency Return to Service (ERTS) profiling regime under modification PM0153. The procedure governs how the system operator and transmission owners (NGET, SPT, SHETL, offshore TOs, and Competitively Appointed Transmission Owners) coordinate outages from six years ahead down to day-ahead handover. The substantive change is to ERTS profiling; the rest is administrative consolidation of CATO inclusion already made in Issues 011 and 012.

NESO has raised PM0153 to revisit the criteria for recalling transmission circuits with longer Emergency Return to Service (ERTS) times during winter. The modification mandates use of a Winter Risk Policy Form to document system margins, constraints, mitigations, and recall plans, with the aim of clearing more winter outages without breaching security standards. It is self-assessed as low impact on Transmission Owners, Transmission Licensees, Generators, and System Operators, with a Panel Decision governance route.

The Secretary of State granted a development consent order for North Falls, a ~1 GW offshore wind farm of up to 57 turbines roughly 40km off the East Anglia coast. Consent covers construction, operation, maintenance, and decommissioning under the Planning Act 2008. This clears the principal planning barrier for a project led by North Falls Offshore Wind Farm Limited (an SSE Renewables / RWE joint venture vehicle).

Ofgem has put market participants on notice that withholding interconnector capacity to drive extreme auction prices is non-compliant with the Electricity Regulation prohibition on capacity hoarding. The accompanying paper sets out observations on occasional price spikes in NESO interconnector auctions between 2022 and 2026 and the steps Ofgem expects traders to take to demonstrate compliance. It is a regulatory warning shot rather than a new rule, but it signals enforcement intent against specific bidding behaviour.

Elexon reports that 8.4 million meters, over a quarter of GB electricity meters, have now migrated to half-hourly settlement under the MHHS programme, and it is starting to release more granular consumption data. This is a progress milestone on an already-decided reform, not a rule change. The headline number marks how far the migration has run, not a new policy.

The Secretary of State has formally determined the standard licence conditions for code manager licences under Sections 33(1) and 81(2) of the Utilities Act 2000, completing the legal step that brings code manager licences into existence for electricity (s.6(1)(g) Electricity Act 1989) and gas (s.7AC(1) Gas Act 1986). This is the determination instrument enacting the SLCs already finalised in the March 2026 joint government-Ofgem consultation response; it adds no new policy. Code managers will replace the existing self-governance model where industry parties run their own code panels.

DESNZ proposes a second, higher price cap in the Capacity Market auction to procure new-build dispatchable enduring capacity for prolonged tight-supply periods, plus a package that reduces information given to participants before and during auctions to suppress strategic bidding. Battery CMUs would be allowed to self-nominate connection capacity below full network capacity to avoid degradation-related extended performance test failures, biogenic generation would gain a route to low-carbon CM benefits via sustainability criteria, and a Termination Fee would be introduced for currently fee-free Termination Events with payment suspension for units in Insolvency Termination Events.

DESNZ proposes Capacity Market Rule changes for the July 2026 Prequalification round, the most consequential being a route for CfD-directed Generating Units to keep CM agreements without drawing both subsidies simultaneously, plus tighter delivery assurance: a more stringent termination framework and Credit Cover held until a New Build CMU completes commissioning. It also sets CM eligibility criteria for Long Duration Electricity Storage Cap and Floor projects, clarifies Secondary Trading entrant rules, and adds a higher CapEx threshold to qualify for the second, higher price cap under the Multiple Price Capacity Market. The consultation runs ahead of Prequalification commencing July 2026 and auctions in 2027.

DESNZ has granted development consent under the Planning Act 2008 for RWE's two Dogger Bank South offshore wind farms, each up to 1.5 GW, for a combined 3 GW across up to 200 turbines. The arrays sit 100 km (West) and 122 km (East) from shore in the North Sea, with onshore export cables and converter stations connecting to the National Grid.

DESNZ and RECCo propose a new obligation in the Electricity Supplier Standard Licence Conditions and the Retail Energy Code requiring every supplier to publish tariff pricing data in a standardised, machine-readable format via a defined API. The arrangements add a TI Arrangements Schedule to the REC, redline the Standard Definition Document, and specify the data items, market messages, and API technical specification that Energy Smart Appliances will read to respond to price signals. Phase one runs through the REC and Supplier SLCs with implementation activities scheduled from post-consultation to early 2027.

Ofgem has endorsed five innovation challenges for the Strategic Innovation Fund covering RIIO-3 transmission (2026-2031) and electricity distribution (2028-2033): six-month industrial connections by 2033, 50% faster and 20% cheaper build by 2035, plug-and-play domestic device connections by 2032, near-zero outages via autonomous islanding by 2038, and decentralised local balancing by 2034. The challenges were recommended by the Energy Networks Innovation Taskforce and will be delivered through Innovation Delivery Groups and SIF-funded projects. This document sets the target framework; it does not allocate funding or change rules.

Elexon publication on how the Market Facilitator is helping shape DNO Primacy in NESO's Demand Flexibility Service. DNO Primacy is the principle that DNOs have first refusal on flexibility services within their networks before NESO procures them at transmission level.

DESNZ Great British Energy framework document. Sets out the operating framework for the new state-owned energy company GBE.

DESNZ publishes a refresh of the Heat Pump Ready Programme. An extra £30m is added from the £15bn Warm Homes Plan public-investment package, on top of the £42m spent across 45 projects in 2021-25. The programme funds research on lifetime heat-pump cost reduction, consumer experience and grid impacts.

Ofgem consults on proposed modifications to the RIIO-2 Electricity Distribution Price Control Financial Instruments (PCFI). Consultation closes 8 June 2026.

Ofgem approves BSC modification P487, which restricts suppliers from registering new customers if they fail to complete their MHHS migration by the M15 milestone (7 May 2027). Exemptions can be granted by the MHHS Senior Responsible Owner. Implementation date: when the MHHS Migration Framework is updated, or 25 June 2026, whichever is earlier. The BSC Panel had recommended rejection; Ofgem overrode the Panel.

NESO explains its voltage reduction capability, where DNOs cut distribution voltage by 3-6% to reduce demand during emergencies. Testing with DNO groups shows a 3% voltage reduction yields approximately 1.2% demand reduction. Full DNO-wide testing is planned to refine the process.

NESO publishes its forecasting strategy to 2030, committing to probabilistic forecasts, multiple weather data sources, and in-house cloud infrastructure (Platform for Energy Forecasting) to replace legacy systems. The headline number is an estimated £2.5m per month saving from dynamic reserve setting underpinned by probabilistic forecasts, reducing average reserve holding by 400MW. FES2025 anticipates 90-120GW of wind and solar installed capacity by 2030 and 12-16% demand growth from 2024 to 2030.

NESO's Constraint Management Intertrip Service (CMIS) page consolidates the three active constraint management programmes: EC5 East Anglia (enduring service starting mid-2026), B6 Anglo-Scottish boundary (15 generators contracted, now extended to September 2027), and a new CMIS Scotland consultation launched 13 April 2026. These are commercial alternatives to transmission build, paying generators to accept automatic disconnection post-fault so more power can flow on existing infrastructure pre-fault.

Ofgem has rejected CMP344, which sought to shift the cost of offshore transmission Income Adjusting Events (IAEs) from offshore generators to demand consumers via the Transmission Demand Residual. The existing arrangement, where generators bear IAE costs through Offshore Local Charges, remains in place. The modification had been in development since May 2020 and was sent back twice before this final rejection.

GC0164 rewrites Grid Code Operating Code 2 (Operational Planning and Data Provision) in plain English with diagrams and flowcharts, without changing any obligations on users. The Panel unanimously recommended the original proposal. It now awaits Ofgem decision, with implementation 10 business days after approval.

The CUSC Panel on 24 April 2026 progressed three new modifications and one workgroup report. CMP469 creates a one-year cost recovery mechanism for parties affected by Grid Code restoration obligations (GC0186). CMP472 allows NESO to share large embedded generators' red line boundaries with DNOs without customer consent, enabling Gate 2 distribution contract verification. CMP471, which proposed interim contract variations ahead of the first CMP434 gated application window, was sent back to the proposer for scope clarification.

STC modification CM093 extends the CUSC Section 15 User Commitment Methodology principles to demand customers currently on Final Sums methodology, reducing their upfront security requirements by applying the Strategic Investment Factor (SIF) and Local Asset Reuse Factor (LARF). This is the STC-side consequential change required by CUSC modification CMP417, targeting the January 2027 securities run. The workgroup voted unanimously that the original proposal better facilitates STC objectives than the baseline.

STC modification CM097 mandates Transmission Owners to submit EMT and RMS models of their assets to NESO, enabling system-wide dynamic modelling as inverter-based resources replace synchronous generation. The workgroup unanimously supported the original solution. Implementation aligns with Grid Code modification GC0168.

NESO proposes replacing references to the Electricity Ten Year Statement (ETYS), Seven Year Statement, Network Options Assessment, and Offshore Development Information Statement in the STC with references to the new Centralised Strategic Network Plan (CSNP). This is a housekeeping modification under self-governance, updating code text to match licence changes already made by Ofgem. Parallel modifications are being raised for the Grid Code and CUSC.

GC0168 would require legacy generators (completion before 1 September 2022) to provide Electromagnetic Transient models to NESO on request, enabling analysis of inverter instability, system oscillations, and transient overvoltage on a grid increasingly dominated by power electronics. The workgroup's preferred alternative (WAGCM1) defers the obligation for GB Code Users until a CUSC cost recovery mechanism is in place, while applying immediately to EU Code Users. Responses due by 8 June 2026.

Ofgem proposes an early competition OFTO build model where transmission assets are competitively tendered before construction, rather than after. The consultation also updates the existing late competition model. Early competition would be mandatory in certain circumstances, with detailed proposals covering tender process, evaluation criteria, and commercial framework.

Ofgem has approved UNC0918, temporarily increasing the maximum NTS exit point offtake rate for BBL Company from 184,780,632 kWh/d to 252,000,000 kWh/d (a 36% increase) and reintroducing an enhanced pressure service. This is the fourth enabling modification in a series (UNC0814, UNC0859, UNC0891) rolling over the same temporary arrangement. The changes apply until 1 October 2026.

Ofgem has accepted urgency for CMP470, a CUSC modification proposing a commitment fee for oversubscribed generation technologies in the grid connection queue. Raised by Field Energy Limited on 20 March 2026, the proposal would price queue positions for technologies that dominate the 700 GW backlog. Urgency was requested by the CUSC Panel on 27 March and accepted by Ofgem on 2 April, meaning this bypasses the standard modification timeline.

Ofgem is gathering evidence from gas shippers and interconnectors to assess UNC0903, which would replace the current locational NTS capacity reference prices with a single uniform price across all entry points. Separate RFIs target shippers using interconnectors (IUK/BBL), LNG terminals, and Norwegian pipelines, plus the interconnectors themselves and National Gas Transmission. The modification is subject to an Authority decision; this RFI will feed an impact assessment.

Ofgem has rejected CMP344, which proposed shifting offshore Income Adjusting Event (IAE) costs from generators connected to OFTO assets onto demand consumers via the Transmission Demand Residual charge. The rejection preserves the status quo: generators connected to offshore transmission remain liable for IAE costs on their OFTO assets. This applies to both existing and future OFTOs.

UK solar installations hit 27,000 in March 2026, the highest monthly total since 2012, bringing cumulative installations past 2 million. Solar capacity grew 11.7% year-on-year, adding 2.3 GW. Peak solar output passed 15 GW for the first time on the GB system.

UK solar PV reached 22.1 GW across 2,003,000 installations at end of March 2026, up 11.7% (2.3 GW) year-on-year. March 2026 saw 27,607 new installations (121 MW), the highest monthly installation count since 2012. Ground-mount now accounts for roughly 58% of total capacity, with 25 CfD-accredited solar farms operational including 19 commissioned during 2025.

DESNZ commissioned Baringa to update its 2024 assessment of supply chain constraints across renewable and network technologies to 2035. The study identifies bottlenecks that could delay deployment and recommends industry or policy interventions to address them.

DESNZ issued a Section 37 screening decision that replacing 3 poles on an existing 11kV, 1,148-metre overhead distribution line at Arne, Dorset is not EIA development. Natural England assented to works between 1 October 2026 and 28 February 2027 subject to mitigations for SSSI, SAC, SPA and Ramsar designations. Routine consenting outcome for a minor SEPD distribution maintenance job.

DESNZ screening decision that replacing 7 poles on a 705m, 11kV overhead line at Masters Quarry near Wareham does not require a statutory Environmental Impact Assessment. The line crosses Stokeford Heaths SSSI, Dorset Heaths SAC/SPA and Ramsar; Natural England has granted assent for works between 1 October 2026 and 28 February 2027 subject to mitigations from the June 2025 Habitats Regulations Assessment.

Ofgem has granted urgency status to CMP475, which would allow NESO to reopen fixed BSUoS tariff periods mid-period when the Working Cash Flow (WCF) threshold is forecast to be exceeded, and to introduce a mechanism to recover the WCF position toward neutral within that period. NESO raised the modification on 15 April 2026; the CUSC Panel unanimously backed urgency on 21 April; Ofgem accepted on 29 April. This changes BSUoS from a truly fixed charge to one that can be reset intra-period, shifting forecast risk back onto demand users.

Ofgem has granted urgency status to CMP474, a CUSC modification that would introduce a reset mechanism for the fixed BSUoS tariff in response to rising balancing cost volatility. NESO raised the proposal on 14 April 2026 and the CUSC Panel unanimously supported urgency on 21 April. Urgency status compresses the modification timeline from months to weeks.

The Secretary of State publishes screening decisions on overhead electricity line applications under section 37 of the Electricity Act 1989. This is an index page collecting 2026 decisions on whether proposed overhead lines require full environmental impact assessment. No specific decisions or outcomes are included in this listing page.

DESNZ screening decision that replacing a single pole on a 247-metre 11kV overhead line at Stoborough, Dorset does not require statutory Environmental Impact Assessment. Natural England assented to works between 1 October 2026 and 28 February 2027 based on the Habitats Regulations Assessment, with mitigations for SSSI, SAC, SPA and Ramsar designations.

Ofgem proposes to amend the force majeure and backstop date definitions in interconnector licence conditions 26A and 26B, which govern delays to the start of the cap-and-floor revenue regime. The changes affect how pre-operational delays are treated for interconnector projects that have not yet reached their regime start date. Consultation closes 20 May 2026.

Ofgem approved BSC Modification P495, allowing suppliers to retire Market Participant Identifiers (MPIDs) they do not intend to qualify for MHHS rather than face a party-wide ban on new meter registrations after Milestone M14 (28 October 2026). Implementation date is 30 April 2026. Raised by Centrica, approved unanimously by the BSC Panel.

Ofgem has issued a determination on an Income Adjusting Event (IAE) claim from Gwynt y Môr OFTO plc under the OFTO licence condition E12-J3. The notice was received on 22 October 2025. The determination letter and its substance are in the attached PDF, which is not available in the extracted text.

DESNZ is reviewing Ofgem's mandate, statutory duties, regulatory remit, and enforcement powers. The call for evidence covers whether Ofgem's principal objective should shift from promoting competition to broader goals including innovation and consumer standards, whether its accumulating statutory duties should be streamlined, and whether it should gain FCA-style Consumer Duty and Senior Manager Regime powers. The consultation closed 28 February 2025; outcomes are now being considered.

DESNZ publishes the first comprehensive review of Ofgem in its 25-year history, proposing to rewrite its statutory duties, give it direct consumer law enforcement powers without court action, introduce individual executive accountability, and cap bonuses for rule-breaking. The review will produce a reformed Strategy and Policy Statement to separate government policy-setting from regulatory delivery, and commits to clarifying the boundary between DESNZ, NESO and Ofgem. Ofgem's workforce has grown from 890 FTE in 2014/15 to 2,110 in 2024/25.

DESNZ has issued a screening decision that a 1,200 metre 11kV overhead line diversion at Choseley Barns, Titchwell does not require statutory Environmental Impact Assessment. The works involve removing 18 existing poles, installing 12 new poles, and re-stringing the existing wire. Eastern Power Networks is the applicant; King's Lynn & West Norfolk Council raised no objections.

DESNZ screening decision that a single pole replacement on an existing 87m, 11kV overhead line at Wareham Meadows does not require statutory EIA. Like-for-like distribution asset replacement by Southern Electric Power Distribution, with Natural England assent and LPA non-objection already secured.

DESNZ has issued a screening decision that a single pole replacement on an existing 75m, 11kV overhead line at Keysworth, Dorset does not require an Environmental Impact Assessment under the 2017 Regulations. The works are like-for-like replacement of existing distribution infrastructure by Southern Electric Power Distribution within the Holton & Sandford Heaths SSSI, with Natural England assent for the 1 October 2026 to 28 February 2027 window. Mitigations include a Non-Licensed Method Statement for Great Crested Newt, Hazel Dormouse and Badger, and Ecological Clerk of Works supervision during vegetation clearance.

DESNZ has issued a screening decision under the Electricity Works (EIA) Regulations 2017 confirming that SEPD's replacement of four wooden poles on a 1,008 metre 11kV line at Holton Heath does not require a statutory EIA. Works are conditioned on bat, newt and reptile mitigation, daylight-only working, and a five-day window scheduled to avoid sensitive periods. Natural England granted unconditional assent on 17 June 2025 for works between 1 October 2026 and 28 February 2027.

Ofgem's Jack Presley Abbott confirms that the battery pipeline emerging from connections reform may be oversupplied relative to Clean Power 2030 needs, and that many protected 2026 and 2027 projects will miss their original dates. Ofgem is considering intervention to prune the queue, and names demand-connection reform, including a data-centre levy, as the next front.

DESNZ consults on siting and investment levers under Reformed National Pricing (RNP), the programme that replaces REMA after ministers rejected zonal pricing. Closes 2 June 2026. Ofgem runs a parallel Call for Input on network and connections charging to 26 May. Together these set how much new generation and storage pay, and where.

P507 BSC proposed changes. Balancing and Settlement Code modification.

Ofgem consults on the ED2 Strategic Innovation Fund allocation. Closes 19 May 2026.

Ofgem has published updated Regulatory Instructions and Guidance (RIGs) and Regulatory Reporting Packs for RIIO-2 network licensees across electricity transmission, electricity distribution, gas transmission, and gas distribution. The templates specify how network companies must report cost, volume, allowed expenditure, and output delivery data. Updates cover Year 5 reporting for transmission and gas distribution, and Year 3 for electricity distribution.

Ofgem and DESNZ confirm 221 GW has been removed from the connection queue under the new Gate 2 / Phase 1 process, with self-selection into Gate 1 filtering out additional capacity. Battery storage has progressed to Gate 2 at a materially higher level than planned: 14.8 GW above the Clean Power 2030 Action Plan range and 61.7 GW above projected 2035 system need. Protection measures for projects with planning consent, Capacity Market agreements or near-term offers, combined with batteries' faster consenting speed, are named as the cause.

DESNZ will publish March 2026 monthly solar PV deployment statistics on 30 April 2026. This is a pre-release announcement confirming the publication date; no data is yet available.

Elexon is calling for a whole-system, data-driven approach to Reformed National Pricing, the programme to introduce locational signals into GB electricity pricing. The statement emphasises coordination across settlement, charging, and dispatch rather than proposing specific rule changes. The content is a positioning statement with no new mechanism or timeline.

Ofgem calls for stakeholder input on NESO's Business Plan 3 performance for 1 April 2025 to 31 March 2026, the final year of RIIO-2. Assessment moves to a Below/Meets/Exceeds Expectations grading across two components: delivery of business plan aims (via Success Measures) and value for money. Responses due 18 May 2026; final decision summer 2026.

DESNZ and Ofgem signal they may intervene to remove battery storage projects from the reformed connection queue, where 14.8 GW above the Clean Power 2030 Action Plan range and 61.7 GW above projected 2035 system need have progressed to Gate 2. The surplus was caused by protection measures for projects with planning consent or Capacity Market agreements, which batteries secured faster than other technologies. NESO's annual consultation proposes disapplying protections so that only batteries with revenue support schemes qualify for future windows, and a code modification imposing financial attrition measures has been granted urgency.

Ofgem rejected urgency for BSC modification P510, which proposed replacing the mutualised compensation arrangements under P415 with direct compensation for Virtual Trading Party actions in the wholesale market. P510 was raised by Flexitricity on 5 March 2026 after evidence of rising volumes and costs in the P415 mutualised compensation fund. Related urgency requests for P509 and P511 were considered alongside and also rejected.

Ofgem rejected urgency for BSC modification P509, which proposed regular benefit assessments and escalation arrangements for demand-side response participation in wholesale markets. P509 was raised by Voltalis on 5 March 2026 in response to rising costs in the P415 mutualised compensation fund. The BSC Panel did not recommend urgency, and Ofgem agreed, meaning P509 will proceed through the standard modification process.

Ofgem has granted urgency for BSC modification P511, which proposes an eligibility threshold above which generation assets cannot participate in wholesale markets via Virtual Trading Parties (VLPs) created under P415. Raised by Axle Energy on 18 March 2026, P511 responds to a recent increase in the volume and cost of the P415 mutualised compensation fund. This is the third urgent modification (alongside P509 and P510) targeting the same problem: P415's market access framework is generating socialised costs that were not anticipated.

Ofgem is reviewing proposed modifications to Last Mile Gas's connection charging methodology under Standard Condition 4B of the gas transporter licence. The decision letter was issued on 16 April 2026, with Ofgem having 28 days from receipt on 2 March 2026 to rule on the changes. The actual content of the modifications is in the attached PDF decision letter, not the page text.

Ofgem approved National Gas Transmission's revised System Management Principles Statement, effective 1 April 2026. The revision contains only formatting, grammatical, and naming updates with no substantive policy changes.

DESNZ will exempt over 10,000 manufacturers from Renewables Obligation, Feed-in Tariff, and Capacity Market levy costs on their electricity bills from April 2027, cutting bills by up to 25% (£35-40/MWh). The scheme expands eligibility by 40% from 7,000 to 10,000 businesses, with a one-off backdated payment covering April 2026 to March 2027, and is expected to cost £600 million per year funded through unspecified 'changes within the energy system' and Exchequer funding.

Ofgem has published a call for input on the future regulatory framework for electricity interconnection, covering route to market, competition models, financing structures, and treatment of Offshore Hybrid Assets. This accompanies DESNZ's policy paper on interconnection's role in a strategically planned system. GB currently has 10.3 GW of operational interconnector capacity with 1.4 GW in construction and 8.9 GW in development under existing approvals.

Ofgem is challenging the widespread use of fixed MW thresholds — particularly the 100MW threshold — for determining whether outage and availability information must be published as inside information under REMIT Article 4. The regulator flags that threshold-based approaches ignore prevailing market conditions, cumulative effects of smaller outages, and aggregation across a participant's portfolio. The guidance explicitly extends expectations to Offshore Transmission Owners (OFTOs), signalling that transmission availability disclosure has been inadequate.

DESNZ screening decision that a 160m upgrade of an 11kV overhead line to three-phase at Pig Barn, Berkshire, does not require an Environmental Impact Assessment under the 2017 Regulations. The works involve replacing a pole-mounted transformer with a 100kVA three-phase unit, with no objections from Natural England, the North Wessex Downs National Landscape, or West Berkshire Council.

Ofgem has rejected IGT165, a modification proposed by OVO Energy to create an Independent Shrinkage Expert and Independent Shrinkage Charge on Independent Gas Transporter networks. The proposal aimed to incentivise reduction of gas shrinkage emissions on IGT networks by introducing a dedicated charge and expert role. Submitted September 2025, the rejection means the existing shrinkage arrangements on IGT networks remain unchanged.

Ofgem has rejected UNC0843, which proposed creating an Independent Shrinkage Charge and Independent Shrinkage Expert to incentivise gas distribution networks to reduce unaccounted-for gas (shrinkage). The modification, submitted by OVO Energy in September 2025, would have introduced a new charge mechanism and an independent expert to oversee shrinkage performance on GDNs. The rejection means the existing shrinkage arrangements remain unchanged.

Ofgem has approved NESO's methodology for refreshing the second transitional Centralised Strategic Network Plan (tCSNP2), which will reassess the transmission network build programme needed through the 2030s. The refresh will update cost estimates, delivery timescales, and network designs from the 2024 tCSNP2, incorporating connections reform outcomes and revised offshore network configurations. It also feeds into the pipeline for the full CSNP due by December 2028.

Ofgem has directed NESO to delay the first Centralised Strategic Network Plan by 12 months: submission moves from June 2027 to 15 September 2028, publication from December 2027 to 15 December 2028. The delay aligns CSNP with the revised Strategic Spatial Energy Plan timeline. NESO requested the derogation itself on 23 March 2026, and Ofgem granted it.

Ofgem has conditionally approved NESO's methodology for producing the Centralised Strategic Network Plan (CSNP), the first independent long-term plan covering electricity, gas transmission, and hydrogen transport and storage networks in GB. The methodology uses the Strategic Spatial Energy Plan as an input and describes how NESO will identify system needs, develop options, appraise them, and recommend delivery. Approval is subject to two conditions requiring further detail on unspecified areas.

Ofgem has rejected UNC0843, a proposal by OVO Energy to create an Independent Shrinkage Charge and Independent Shrinkage Expert for gas distribution networks. The modification aimed to incentivise GDNs to reduce gas shrinkage (leakage and own-use losses) by introducing a separate charge and independent oversight. The rejection maintains the status quo where shrinkage costs remain embedded in existing GDN allowances under RIIO-GD2.

Ofgem is consulting on updates to the Regulatory Financial Performance Reporting (RFPR) template and guidance for RIIO-2 gas and electricity transmission and distribution networks, covering the 2025/26 reporting year. The changes are general updates to guidance, input data and parameters rather than a reform of what networks must disclose. Responses go to Stephanie.Fernandes@ofgem.gov.uk by 12 May 2026.

Elexon is flagging an Ofgem consultation that would remove certain reporting requirements on DNOs relating to flexibility services procurement. This Elexon post is a signposting notice urging flexibility service providers to respond to the underlying Ofgem consultation. The substance sits in the Ofgem licence change, not this announcement.

NESO has published Issue 8 of the EDL Message Interface Specification, the protocol Balancing Service Providers use to receive dispatch instructions and submit dynamic parameters. The update implements Grid Code modification GC0166, adding two new submission message types: Maximum Delivery Offer (MDO) and Maximum Delivery Bid (MDB), plus decimal-place precision for MWh values. References to BOAR and Replacement Reserve have been removed.

NESO's index page listing electrical standards documents for transmission-connected generators across England, Wales, SPT and SHE Transmission areas. The page was refreshed to show an updated EDL Message Interface Specification dated 13 April 2026; all other listed standards are unchanged.

DESNZ screening decision that a like-for-like replacement of three poles on a 278m 11kV overhead line at White Horse Hill, Dorset does not require statutory environmental impact assessment. Natural England granted unconditional assent for works between 1 September 2026 and 28 February 2027, and Dorset Council had no objection.

DESNZ has published a revised Electricity Supply Emergency Code setting out how rota disconnections would be imposed during a prolonged electricity shortage. Non-protected demand is split into 18 Load Blocks of ~5% each, disconnected in three-hour rotations under NESO-issued Activation Schedules, with Protected Sites shielded via a four-tier list (Tier 0 energy infrastructure, Tier 1 hospitals, Tier 2 essential services, Tier 3 industrial sites facing >=10% asset damage). The update follows a 2023 review and reflects the split between the short-notice Demand Control Rotation Protocol and the prolonged-emergency ESEC route.

Ofgem published final Tier 2 determinations on ten Capacity Market prequalification disputes for the 2025-26 Delivery Year. Appellants include Capbal (Kilwinning), OakTree Power, Northwold Solar Farm, Nextpower Rutherglen, Harmony KB, Flexion Energy (two appeals), ENGIE Power, Diodes Zetex Semiconductors, and Battery Box. The determinations review whether the Delivery Body correctly applied the Capacity Market Regulations and Rules to each original prequalification decision.

DESNZ screening decision under the 2017 EIA Regulations concludes that replacing four 11kV wood poles on a 553m existing overhead line at Kingston, Dorset does not require a statutory EIA. Works will proceed under SEPD's existing consent with Natural England mitigation conditions, scheduled 1 September 2026 to 28 February 2027.

DESNZ screening decision that a 243m upgrade of an 11kV overhead line to 3-phase at Old Rectory in the South Downs National Park does not require a statutory Environmental Impact Assessment. Natural England and the South Downs National Park Authority both raised no objection. The decision is procedural and confined to one minor distribution asset.

Elexon announces an online workshop on 21 April 2026 to gather stakeholder input into a strategic roadmap for coordinating flexibility markets.

DESNZ has issued a screening decision that a single 132 kV tower, cable sealing end platforms, and two underground cables at Musty Haulgh Farm, Burnley do not require a statutory Environmental Impact Assessment. The works are a minor modification to Electricity North West's existing 'DR' overhead line to connect a 152 MWh battery storage site that already has planning consent (FUL/2021/0375, granted July 2023). Burnley Borough Council confirmed no EIA needed on 15 December 2025; no public representations were received by the 3 April 2026 deadline.

Ofgem sets updated Interest During Construction rates for 2026-2027: 9.55% (pre-tax nominal) for OFTO projects (down from 9.74%) and 5.49% (vanilla real-CPIH) for Window 3 cap and floor interconnectors. Reference date: 31 January 2026.

Ofgem grants urgency to CMP470, a CUSC modification that would introduce commitment fees for developers holding grid queue positions in oversubscribed technology categories — primarily battery storage, which exceeds CP2030 targets by 14.8GW (2030) and 61.7GW (2035). The fee mechanism would price queue occupation for the first time, giving non-viable projects a financial reason to exit before signing Gate 2 connection agreements. Decision needed before Phase 1 offers are accepted from mid-August 2026.

NESO's Joint European Stakeholder Group page lists meeting materials for the bimonthly forum covering retained EU Energy Network Codes, Trade and Cooperation Agreement activity, and cross-border energy policy. The next meeting is 12 May 2026; the April session was cancelled. No substantive policy content is published on this page beyond meeting agendas and headline reports.

NESO consults on updates to the methodology for compensating interconnector owners when Net Transfer Capacity restrictions limit cross-border electricity flows. The proposed changes are largely housekeeping — rebranding from ESO to NESO, deduplicating content, correcting legacy errors (removing a scarcity adjustment never used, switching from mean to median clearing prices), and reorganising the document chronologically. The substantive content is the methodology's treatment of intraday versus day-ahead restrictions and the refusal to expand compensation beyond congestion revenue to cover knock-on losses in capacity markets or frequency response.

NESO reports that the 2026 CUSC Alternate Panel Member election concluded with four candidates nominated for five vacancies, meaning all candidates were elected unopposed under CUSC 8A.2.2.3. The four alternate members (Joseph Dunn, Kirsty Dawson, Nick Sillito, Paul Jones) serve from 24 April 2026 to 30 September 2027. One vacancy remains unfilled.

NESO has published its 2026 Operability Strategy Report and Electricity Markets Roadmap, covering operational changes needed for clean power by 2030. The reports emphasise demand-side flexibility, stability pathfinder programmes, reserve product markets, and changes to minimum inertia requirements. A separate Visibility and Access Roadmap consultation on distributed energy resource oversight is open until April 2026.

NESO consults on a roadmap to gain operational visibility and dispatch access to distributed energy resources (DERs) and consumer energy resources (CERs) — commercial batteries, small-scale wind, EVs, rooftop solar, and home batteries. The consultation closes 30 April 2026 and seeks feedback on ambition, practicality, and completeness of proposed capabilities and data requirements. This is the system operator's bid to extend its operational reach below the transmission-distribution boundary.

NESO's Early Competition events page consolidates webinar recordings, slides, and an active Expression of Interest questionnaire with a 30 April 2026 deadline. The EOI asks stakeholders to shape how transmission projects are packaged, sequenced, and brought to market under the Early Competition regime. This is the engagement layer around an already-decided policy, not a new rule.

NESO's Balancing Programme landing page aggregates updates on the Open Balancing Platform (OBP), control room capability journeys, and stakeholder engagement events. No new rules, charges, or decisions are announced. The page serves as a navigation hub for existing materials including webinar recordings, slide packs, and closure reports.

NESO's first Q&A workshop on GC0166 explains the MDO/MDB (Maximum Delivery Output/Bid) mechanism that replaces the 30-minute rule for battery dispatch in the Balancing Mechanism. Control points must submit minute-granularity energy availability data from real-time to 05:00 D+2, protecting volumes committed to frequency response and reserve contracts. Go-live is 22 June 2026, with transition running to November 2026 as individual control points certify readiness.

NESO's Connections Portal landing page provides access to the online system where developers apply to connect projects to the National Electricity Transmission System. The page collects user guides, how-to videos, and webinar materials explaining portal functionality. No new rules, charges, or process changes are announced.

The SQSS Panel met on 24 March 2026 and progressed three modifications: GSR036 (voltage limit review for operational timescales) was sent back for further refinement, GSR037 (formatting housekeeping) was approved to proceed directly to Code Administrator Consultation without a workgroup, and GSR035 (beneficial outages) had its Terms of Reference approved. GSR034 (offshore DC converter infeed risk) was implemented on 13 March 2026.

The Grid Code Review Panel met on 26 March 2026. Two new modifications were presented: GC0185 proposing dynamic regulation as an alternative to mandatory frequency response was sent back for clearer scope, and GC0187 (legal text corrections) was deferred over a drafting query. GC0139 on enhanced planning-data exchange between network operators and NESO was unanimously recommended to Ofgem.

CUSC Panel granted urgent treatment to CMP470, which introduces a commitment fee for grid connection technologies oversubscribed relative to Clean Power 2030 targets — a pricing mechanism for queue capacity. CMP440, which removes the zero price floor on demand TNUoS locational tariffs to restore locational investment signals, was unanimously recommended to Ofgem. CMP445 (pro-rated first-year TNUoS for generators) proceeds to Code Administrator Consultation opening 7 April 2026.

CUSC modification CM0104 adjusts the due date for NESO's monthly payments to Transmission Owners, ensuring one business day always falls between TNUoS/connection charge receipts from CUSC users and onward payments to TOs. Self-governance route, now implemented.

STC Procedure Modification PM0150 adjusts the due date for NESO's monthly payments to Transmission Owners, ensuring one business day between receiving TNUoS and connection charges from CUSC users and paying TOs. This is a consequential change following CM0104, already implemented and concluded as of 1 April 2026.

TCMF slidepack covers five substantive items: a proposed CUSC clause to let NESO share Large Embedded Generator red line boundaries with DNOs without customer consent; a proposed urgent modification to allow connection date delays during the ~30-month freeze ahead of the first CMP434 gate window; RWE flagging significant errors and missing appendices in Gate 2 Offers where network companies delayed connection dates; and NESO's proposal to model Sea Link HVDC tariffs on a north-to-south (Sizewell-to-Richborough) flow direction based on power flow studies showing 75% southward flow. The code administrator update lists CMP470 (Oversubscribed Technologies Commitment Fee) as a new urgent modification with nominations closing 2 April.

NESO consults on guidance for secondary generators — those with Grid Code obligations but no restoration contract — on how to comply with the Electricity System Restoration Standard (ESRS). The ESRS requires 60% of national demand restored within 24 hours and 100% within five days of a total or partial shutdown, with a compliance deadline of 31 December 2026. The guidance codifies existing Grid Code obligations around 72-hour plant resilience, cold start time declarations, communications testing, and cyber security under the NIS Regulations.

Ofgem consults on the second preliminary Strategic Direction Statement, which sets binding priorities for how GB industry codes must develop under the Energy Act 2023 governance reforms. The SDS categorises policy areas requiring code changes and proposes converting from a preliminary to a hybrid document once BSC and REC are designated by end-2026. Responses due 28 May 2026.

DESNZ evaluates the smart metering roll-out covering research, monitoring and future evaluation plans for GB smart meter deployment.

CUSC Section 14 v1.48a is the updated standing methodology document for connection charges, TNUoS, and BSUoS, effective 1 April 2026. It sets out the formulas for calculating connection charges (GAV depreciation, WACC-based returns, site-specific maintenance, transmission running costs), the transport model for deriving zonal TNUoS tariffs, and daily BSUoS settlement. This is the reference text, not a reform proposal.

NESO published the consolidated Connection and Use of System Code (CUSC) as of 1 April 2026, version 1.19/1.22. This is the complete code text — sections on applicability, connection, use of system, balancing services, charging methodologies, queue management, and the Gates process — not a modification or reform proposal. No rules change; this is the standing reference document.

Version 7 of STC Section E sets out the billing and payment arrangements between NESO and Transmission Owners, effective 1 April 2026. The section covers TO Charges (general system, site-specific, and offshore TO of last resort), Company Charges (interruption, offshore construction securities, compensation payments, replacement offshore TO charges), invoicing timelines, dispute procedures, and late payment interest. No substantive changes to the charging framework are indicated — this is the standing legal text of the code section.

NESO published the consolidated System Operator Transmission Owner Code (STC) as at 1 April 2026. This is a routine republication of the complete code text incorporating all modifications to date, not a new change. The document covers governance, party accession, the STC Modification Panel, and code procedures.

STCP 13-1 Issue 017 updates the STC procedure for invoicing and payment between NESO and Transmission Owners, incorporating modification PM0150 which changes the due date for monthly payments to TOs. The procedure now requires NESO to pay onshore TO invoices on the 2nd business day after the 14th of each month. This is the third revision in four months, following CATO integration (PM0134/PM0151) and legal text rectifications (PM0152).

NESO publishes the draft 2026/27 AAHEDC tariff at 0.044201p/kWh, a 7.8% increase on the prior year. The £121m total scheme amount subsidises distribution costs in Northern Scotland and Shetland, recovered from all licensed suppliers pro rata to demand. Final tariff due mid-July 2026, effective retrospectively from 1 April 2026.

NESO publishes updated guidance on the AAHEDC scheme, a flat-rate p/kWh tariff levied on all electricity suppliers to subsidise distribution costs in the Scottish Hydro Electric Power Distribution (SHEPD) area. The tariff is set annually by 15 July, applied retrospectively from 1 April, and calculated by dividing the Total Scheme Amount (assistance + Shetland assistance + administration + correction) by forecast total energy consumption. Invoices are quarterly in arrears with no reconciliation.

DESNZ has screened out a 533m extension of 11kV overhead line on the Isle of Wight from statutory environmental impact assessment under the 2017 EIA Regulations. The Secretary of State concluded the works are not EIA development given their minor nature, with SEPD to proceed under standard Section 37 consent subject to LPA conditions on NJUG Volume 4 compliance and bird-nesting-season vegetation clearance.

DESNZ screening decision under the 2017 EIA Regulations concludes that upgrading approximately 465 metres of 11kV overhead line from single to three phase at Arne, Dorset, is not EIA development and does not require a statutory assessment. Southern Electric Power Distribution may proceed under section 37 of the Electricity Act 1989, subject to ecology mitigations and Natural England's assent window of 1 June to 1 September 2026.

DESNZ screening decision that replacement of a single wooden pole on an existing 189-metre 11kV distribution line at North Ripley does not require a statutory Environmental Impact Assessment. Works are scheduled between 1 September and 31 December 2026, subject to Natural England conditions on ground pressure and pole seasoning, plus ecological mitigations for reptiles and nesting birds.

DESNZ screening decision that replacing three wooden poles on a 526-metre 11kV distribution line at Sopley does not require statutory Environmental Impact Assessment under the 2017 Regulations. Works are scheduled between 1 September and 31 December 2026, with Natural England having previously given unconditional assent and standard ecological mitigations (bat checks, water vole survey, bird nesting season avoidance) in place.

DESNZ and Ofgem are scoping where to host repositories of historical smart metering data, allowing consented third-party access via a consumer consent solution. The scoping exercise completes by end of May 2026, after which a preferred approach will go to consultation.

Elexon list of 2026 Change Releases. Reference page for standard, non-standard and special release dates.

Ofgem consults on draft determination for NGET's RIIO-2 Visual Impact Mitigation re-opener to underground transmission lines in the Cotswolds AONB. Closes 28 April 2026.

Ofgem consults on modifications to RIIO-3 associated documents, including crossover guidance for GD2/GD3 and GT2/GT3 adjustments, plus NGET PCD reporting requirements. Closes 13 May 2026.

Ofgem has approved NESO's request to increase the derogated volume of Mandatory Frequency Response (MFR) procurement from 120 MW to 300 MW — a 150% increase. The derogation allows NESO to procure MFR earlier than day-ahead and for contract periods up to one month, bypassing standard Grid Code procurement rules. All other terms of the January 2025 derogation remain unchanged, with expiry on 31 December 2029.

Ofgem blog post advising businesses on managing energy costs as contracts come up for renewal. Notes that network costs are increasing in April to fund infrastructure upgrades, and that wholesale costs remain volatile due to Middle East conditions. Estimates less than 10% of businesses recontracted in March-April, with 10-12% on deemed contracts.

Ofgem publishes guidance on how NESO should interpret Condition C1 of its Electricity System Operator and Gas System Planner licences, which sets minimum performance outcomes. The document establishes expectations for compliance and requires NESO to produce remediation plans when material performance concerns arise. This is part of NESO's enduring regulatory framework, replacing the transitional arrangements since its separation from National Grid.

Ofgem publishes the governance document detailing how it will assess NESO's annual performance and apply financial incentives under the enduring regulatory framework. The document sets out the methodology for performance assessment, reporting requirements, and the mechanisms NESO must use to collect stakeholder feedback. This sits within the broader implementation of NESO's post-separation regulatory settlement.

CMP470 proposes a commitment fee for technologies oversubscribed relative to Clean Power 2030 targets, aimed at forcing speculative projects out of the connection queue. The CUSC Panel voted by majority to recommend urgent treatment to Ofgem, with a final modification report targeted for 30 June 2026 under the urgent timeline versus April 2027 under standard process. The proposal was raised by Field Energy on 20 March 2026 after Gate 2 capacity data revealed approximately 90 GW of battery storage projects seeking connection points when roughly one third will actually connect.

Elexon launches a dashboard tracking supplier progress towards Market-Wide Half-Hourly Settlement (MHHS). Provides visibility on which suppliers are meeting migration milestones.

DESNZ inviting local authorities to submit information on heat network zone opportunity areas by 29 May 2026 to inform the future zoning pipeline. This precedes statutory formation of the Zoning Authority under the forthcoming Heat Network Zoning SI.

Elexon launching API-based asset registration for the Balancing Mechanism on 31 March 2026, linking to their Customer Solution Platform. Reduces friction for flexibility providers entering the BM.

Elexon Director Victoria Moxham discusses flexibility, data, and net zero transition on the Powerverse podcast. No new policy or market announcements.

DCRP/MP/25/01 considers potential changes to Distribution Code Document 6 (DOC6) following Grid Code modification GC0176, which introduces a Demand Control Rotation Protocol. The joint workgroup reviews whether distribution code amendments are needed to align with new grid code provisions for demand control. This appears to be a procedural alignment exercise following grid code changes.

The Distribution Code proposes consolidating EREC G98 and EREC G99 distributed generation connection guides into a single document. This annual revision follows Distribution Code requirements with consultation planned for March 2025. The change streamlines guidance for generators connecting at different scales rather than altering connection rules themselves.

DCRP/MP/25/03 proposes modifications to Engineering Recommendation G87 Issue 3, a technical standard governing electrical connections to distribution networks. The modification has been reviewed by ENA's Technical Author Service and is now under consultation. G87 sets technical requirements for equipment connecting to distribution networks.

This Distribution Code modification proposes changes to Engineering Recommendation G12 Issue 6, reviewed through ENA's Technical Author Service. The consultation pack references two documents (DCRP/MP/25/04 and DCRP/MP/25/04A) but provides no detail on what changes are proposed. The modification was published 29 March 2026.

Distribution Network Operators must now follow standardised technical procedures when providing new connection points to premises that already have connections, or are adjacent to premises with existing connections, regardless of which DNO provided the original connection. The new EREC G94 standard addresses safety and technical risks from multiple connection points in close proximity. This responds to increased demand for additional connections driven by EV charging infrastructure.

The Distribution Code modification EREC G59 Issue 3 A8 adds supplementary sections to facilitate intentional islanding during system restoration processes. This builds on existing Engineering Recommendation G59 guidance for distributed energy resources. The modification enables controlled isolation of network sections while maintaining local supply during wider system recovery.

EREC G99 adds supplementary sections to facilitate intentional islanding during system restoration. This is a code modification to the distribution connection standard. The change enables grid-connected assets to operate in isolation when the grid is being restored after blackouts.

The Standard Application Form (SAF) v11 for EREC G99 connections updates the formal document used to apply for connecting power generating modules exceeding 16A per phase to distribution networks. The form covers solar, wind, battery storage, and other generation technologies connecting under G99 requirements. This appears to be a routine version update to existing connection application procedures.

Distribution network operators assess whether to create explanatory guidance supporting Engineering Recommendation P28 Issue 2, which sets technical standards for distributed generation connections. The proposed Engineering Report would provide additional technical application guidance but would not change P28 itself. No timeline or specific technical areas are identified.

CMP470 proposes introducing a commitment fee floor for all technologies that are oversubscribed relative to Clean Power 2030 capacity targets. The modification targets generation developers with high impact and transmission owners with medium impact. It is proceeding through urgent governance route to workgroup stage.

NESO publishes its codes administration landing page, consolidating information on the four electricity transmission codes it manages: CUSC, Grid Code, STC, and SQSS. The page includes a monthly modification tracker published on the 7th of each month and search functionality for current and concluded modifications. This serves as a reference portal for industry participants engaging with code modification processes.

NESO expands its Demand Flexibility Service to allow participants to be rewarded for increasing electricity consumption during periods of excess supply, alongside existing rewards for demand reduction. The service threshold drops from 1MW to 0.1MW, opening participation to smaller suppliers and businesses. Over 2.46 million businesses and consumers have already signed up.

NESO has launched a consumer mobile app that shows carbon intensity of the electricity grid in real-time, allowing users to schedule energy usage during periods of low carbon generation. The app, developed with WWF and Oxford University, can link to smart devices for automated load shifting. NESO is seeking user feedback to improve a new version of the app.

NESO establishes a programme to track and enable demand-side flexibility participation in its balancing services markets, targeting 10-12 GW of demand flexibility by 2030. The programme includes quarterly reporting of participation levels and a Routes to Market Review to remove barriers for demand-side participants. Data relies on self-reported confirmations from asset owners, with NESO encouraging non-respondents to contact them for comprehensive representation.

NESO publishes quarterly updates on its review to remove barriers preventing demand-side flexibility from participating in system operator markets. The review has completed three stages and now publishes quarterly progress reports tracking barrier removal, with a data dashboard monitoring participation volumes. The programme follows NESO's Clean Power 2030 advice identifying demand-side flexibility as essential for operating a decarbonised system.

NESO has decided not to implement a short-term day-ahead reactive power market after cost-benefit analysis showed no consumer benefits under current conditions. The decision will be reviewed in 2027 at the earliest. NESO continues work on Commercial Services Agreements for additional reactive power capability, with transmission-connected solutions progressing faster than distribution-connected ones.

NESO published a webinar update on its short-term (D-1) stability market assessment, concluding there are no consumer benefits to implementing a full short-term stability power market under current conditions. The assessment follows NESO's 2023 Markets Roadmap commitment to procure stability services across long-term (Y-4), mid-term (Y-1), and short-term (D-1) timescales. NESO's cost-benefit analysis found insufficient justification for the D-1 market implementation.

Code modification GSR038 proposed to remove the requirement for two offshore AC transformers at grid entry points of 90MW or more has been withdrawn. The modification aimed to assess restrictions in Grid Code Clause 7.7.1.1 that effectively mandated dual transformer configurations. NESO classified it as having high impact on offshore transmission owners and generators.

Code modification CM0106 proposes to restore requirements for Transmission Owners to submit interface substation compliance information to NESO, addressing a gap created when NESO separated from National Grid. Previously, TOs and DNOs agreed Access Groups and Periods, with DNOs sharing schedules at week 24 to allow TOs to determine site compliance. The modification is under standard governance with workgroup assessment.

The BSC Panel is consulting on code changes to establish governance arrangements for the Smart Data Repository, scheduled to launch later in 2026. The repository will centralise smart meter data to support market operations and grid management. This is implementation detail for an already-decided policy rather than a new structural reform.

DESNZ and Ofgem propose mandatory baseline cyber security requirements for all 1,400+ Ofgem licensees through licence conditions, using Cyber Essentials certification as the starting point. The proposal also expands Network and Information Systems (NIS) Regulations to capture more distributed energy operators deemed critical to system stability. NESO will provide independent advice on which services and operators should fall under the enhanced NIS framework.

Ofgem and DESNZ propose baseline cyber security requirements for all energy licensees, plus expanded Network and Information System Regulations coverage. The consultation seeks to standardise cyber resilience across downstream gas and electricity sectors through mandatory minimum requirements. No specific thresholds, costs, or implementation dates are provided.

Ofgem sets out five options for redesigning transmission network charges to steer investment towards Strategic Spatial Energy Plan locations, ranging from tweaking existing TNUoS to auctioning connection capacity by zone. Charges would apply to new generators, demand, and storage. Responses by 26 May 2026, reforms targeted for 2029.

Ofgem proposes adapting the energy price cap wholesale allowance methodology to accommodate Market Wide Half-Hourly Settlement (MHHS), which changes how suppliers are settled when purchasing electricity to match customer demand. The consultation seeks views on setting wholesale allowances that track efficient costs, accounting for cost differences across customer groups, and developing time-of-use price cap variants. Responses are due by 5 May 2026.

Ofgem approves NESO's amendments to balancing terms and conditions to incorporate service documentation for the Demand Flexibility Service. The changes update Article 18 requirements under electricity balancing guidelines to include DFS parameters within formal balancing arrangements. This represents administrative housekeeping rather than substantive reform of the service itself.

Ofgem approved NESO's request to extend and amend the derogation from Article 6(4) of the Electricity Regulation for its Demand Flexibility Service, a balancing energy product. The derogation allows NESO to operate DFS without full compliance with standard balancing market requirements. The decision was made on 25 March 2026 following NESO's proposal submitted on 30 January 2026.

Government sets strategic framework for expanding interconnection beyond current 10.3GW operational capacity and 7.45GW under development, moving from market-led Cap and Floor regime to planned approach aligned with NESO's Strategic Spatial Energy Plan due autumn 2027. New delivery framework will identify optimal location, capacity and connecting countries for interconnectors and Offshore Hybrid Assets combining cables with wind farms.

Ofgem proposes standardised reporting requirements for network companies to disclose procurement practices, local content, and supplier details for electricity network equipment and services. The consultation closes 10 May 2026 and explores potential adjustments to encourage greater domestic supply chain participation within existing regulatory frameworks. This follows Great Britain's planned network expansion requiring unprecedented equipment procurement.

Ofgem proposes strategic planning-led interconnector development where NESO identifies projects and government sets delivery and financing arrangements. The consultation closes 1 May 2026. This shifts from developer-led merchant models to centrally planned interconnection aligned with wider system needs.

DESNZ publishes an overview of hydrogen heating research, positioning it as a future option with limited role after heat pumps and heat networks lead decarbonisation. The H100 Fife trial supplies hydrogen to 300 homes through a parallel network, funded by SGN and gas network operators with Ofgem approval. Government will consult on hydrogen's heating role after completing its assessment.

DESNZ proposes a bill discount scheme offering households within 500 metres of new transmission infrastructure £250 annually for 10 years, funded by an obligation on all electricity suppliers who will pass costs to all customers via bills. The scheme covers new overhead lines and substations from 2027, with eligible households identified automatically via their MPAN, plus an opt-in route for those on commercial meters or off-grid. Administrative costs are socialised across all billpayers while benefits flow only to those hosting infrastructure.

DESNZ published final reports from its Alternative Energy Markets Innovation Programme, which funded seven projects totalling £11.6m to design and test domestic demand-side flexibility tariffs between 2023-2025. The projects tested Home Energy Management Systems paired with time-of-use tariffs, retrofit programmes with dynamic pricing, and subscription models for smart appliances across various hypothetical future market scenarios.

DESNZ publishes guidance requiring new domestic and non-domestic buildings to be designed with specific spacing and positioning requirements for smart meter installations. Buildings must position electricity and gas meters near the front door, provide minimum 405mm x 405mm clear space for smart electricity meters, and avoid metal obstructions around communications hubs. The guidance is part of the Future Homes and Buildings Standards programme.

Government introduces regulations requiring majority of new homes in England to have solar panels fitted as standard from 2028 under the Future Homes Standard, removes regulatory barriers for plug-in solar panels under 800W to connect via domestic sockets without electrician installation, and launches trial allowing suppliers to offer discounted electricity on windy days in constrained areas instead of paying wind farms to switch off. The Future Homes Standard also mandates low-carbon heating systems like heat pumps in new builds, while plug-in solar will be available in shops within months through retailers like Lidl and Amazon.

Market-Wide Half-Hourly Settlement systems went live in September 2025, with first Wave 1 participants completing qualification and beginning migration of 30 million supply points. The programme transitions from implementation to business-as-usual operation of settlement systems and the Data Integration Platform. Elexon served as Implementation Manager rather than Ofgem leading directly, coordinating industry delivery through working groups and volunteer early adopters.

Government and Ofgem establish a data domain model with four coordinators (NESO, RECCo, Elexon) to standardise energy system digitalisation, replacing the current fragmented initiative-led approach. The framework introduces a digitalisation coordination function and mandates interoperability between Data Sharing Infrastructure (DSI) and Consumer Consent Service (CCS). Implementation begins immediately with interim governance, moving to full coordination function by 2028-29.

Ofgem seeks stakeholder evidence for the third-year assessment of Distribution Network Operators' performance as Distribution System Operators under RIIO-ED2. Responses close 30 April 2026, with the independent panel's assessment following this summer.

Ofgem approved modifications to BUUK's connection charging methodology for gas network connections under Standard Condition 4B of the gas transporter licence. The decision was made within the required 28-day review period following BUUK's submission on 27 February 2026.

NESO published updated Connections Reform methodologies in March 2026, extending the Evidence Submission Window closure beyond July 29, 2025 due to portal issues and query response delays. The methodologies cover the Gate 2 Two-way Queue (G2TWQ) process, including network design criteria, project designation rules, and gate progression requirements.

Smart meter rollout statistics show 41 million smart and advanced meters operating at end-2025, covering 71% of all meters in Great Britain. Installation pace slowed by 5.8% to 2.8 million meters in 2025, with quarterly volumes declining in the second half after increases in Q1-Q2. The programme continues transferring SMETS1 meters to the national communications network to maintain interoperability between suppliers.

DESNZ publishes quarterly statistics on smart meter roll-out, covering domestic and smaller non-domestic installations and operations. Data includes meters installed and operating across Great Britain, with quarterly updates for large suppliers and annual whole-market data. Historical data prior to 2017 available on request.

Ofgem proposes removing distribution network operators' reporting requirements under Standard Licence Condition 31E, transferring responsibility to Elexon as Market Facilitator from April 2027. The modification eliminates DNO obligations to report flexibility service procurement data to Ofgem. Statutory consultation follows in June 2026 with final decision by August 2026.

DESNZ commissioned Lucy Yu to review AI deployment in electricity networks, examining applications across grid planning, operations, and management. The review will map current AI applications, identify deployment barriers, assess system benefits and risks, and provide recommendations by Summer 2026. The scope covers transmission and distribution applications, regulatory landscape, and enabling conditions like data access and testing environments.

Elexon has published draft governance frameworks for Smart Secure Electricity Systems (SSES) and extended the consultation deadline to 31 March 2026. The framework establishes enduring governance arrangements for smart secure electricity systems in Great Britain, including bilateral agreements with cross-references to BSC provisions.

Ofgem is consulting on Early Construction Funding for Scottish Power Transmission's Denny to Wishaw 400kV reinforcement project under the ASTI re-opener mechanism. The consultation closes 15 April 2026 with responses to be submitted to transmission.acceleration@ofgem.gov.uk. This follows SPT's application for accelerated funding to begin construction ahead of the normal RIIO price control cycle.

The Chancellor's Mais Lecture outlines a strategy for investment-led growth through an 'active and strategic state', including energy security measures and industrial policy. Key energy commitments include lifting the onshore wind ban, investing in offshore wind and nuclear (Sizewell C, small modular reactors), and implementing the Fingleton Review to accelerate nuclear deployment. The government claims these measures have reduced gas imports by 17% since 2021 and enabled a £117 average reduction in the energy price cap.

NESO publishes methodology for calculating Net Transfer Capacity (NTC) restrictions on interconnectors and compensating affected capacity holders. The current consultation runs until 17 April 2026, updating commercial arrangements for capacity restrictions. This covers all GB interconnectors and applies to both day-ahead and intraday capacity calculations.

Ofgem proposes demand connections reform structured around 'Curate, Plan and Connect' pillars to address queue viability, project progression delays, and lack of strategic prioritisation. The demand queue has grown substantially with many non-viable projects blocking viable ones from connecting. The reform builds on TMO4+ and involves NESO and network companies in developing prioritisation mechanisms for strategically important projects.

NESO launches a call for input targeting customers with existing transmission-level demand connection agreements and co-located generation-demand sites, seeking project data to address queue management challenges. The initiative follows a 460% surge in demand applications exceeding forecasts, creating connection delays for viable projects. Responses are due by 5pm on 5 December 2025.

NESO published results from its November 2025 Call for Input on demand connections, receiving 243 responses representing over 90GW of demand capability. Data centres dominate at 55% of total capacity (50.8GW), with 81% of all projects willing to accept alternative connection arrangements like phased or non-firm connections for earlier dates. Connection dates span 2027-2035, with 40% of projects seeking pre-2030 energisation.

Ofgem decision on the market arrangements regime for Multi-Purpose Interconnectors (MPIs). MPIs combine interconnector capacity with offshore wind generation in a single asset, similar to offshore hybrid assets.

Ofgem National Energy System Operator (NESO) annual C9 review. C9 is the NESO licence condition covering the operational performance review.

Government proposes using new statutory powers to accelerate grid connections for strategic demand projects, including data centres and AI Growth Zones, through queue management reforms, capacity reservation, and reallocation mechanisms. The proposals would impose higher financial requirements on data centres to address speculation in the 125GW demand queue, while creating prioritisation systems for government-identified strategic projects. Consultation closes 15 April 2026.

DESNZ publishes annual statistics on MCS-certified domestic battery installations covering April 2025 to March 2026, including capacity and cost data. The MCS database captures installations eligible for various support schemes and provides the primary dataset for tracking behind-the-meter storage deployment. This data informs policy development on distributed storage and network impact assessments.

DESNZ will enable government to prioritise strategically important demand projects (AI data centres, industrial sites) in transmission connection queues while requiring higher financial commitments from developers to tackle speculative applications. The demand connection queue grew 460% in six months to June 2025, creating waits up to 15 years. Ofgem will consult on increased deposits or fees for queue participants who miss milestones.

The Secretary of State published screening decisions on overhead electricity line applications under section 37 of the Electricity Act 1989. These decisions determine whether overhead line projects require full Environmental Impact Assessment or can proceed with a simplified process. No specific applications or decisions are detailed in this collection notice.

Ofgem, NESO and DESNZ seek stakeholder interest in joining a Charging Transitional Arrangements Group (CTAG) to inform whether transitional or legacy arrangements are needed ahead of transmission charging reforms. Part of the Reformed National Pricing programme that followed the July 2025 decision to retain a single national wholesale price.

Elexon and ElectraLink have signed an agreement establishing a daily API for sharing half-hourly settlement data, required to maintain retail market operations during Market-wide Half-Hourly Settlement (MHHS) implementation. The framework guarantees data access between the settlement body and the retail market data provider. This prevents disruption to supplier switching and other retail processes that depend on ElectraLink's systems.

NESO updates queue management guidance with new milestone calculation methods and evidence requirements for transmission connections. The guidance incorporates recent code changes CMP434 and CMP435 that implement connections reform, establishing eight mandatory milestones that developers must meet or face termination. Projects must now demonstrate progression through planning, land rights, construction planning, financial commitment, and construction initiation phases with specific evidence requirements and timelines calculated backwards from completion dates.

Ofgem consultation on Grid Line Power Networks Limited's proposed Safety and Security of Supplies Enquiry Service.

Ofgem consults on draft template code text for the new code modification process, set-up of the Stakeholder Advisory Forum (SAF), and expressions of interest for phase 2 code consolidation workshops.

Elexon hosted a webinar on 26 February introducing the Smart Secure Electricity Systems (SSES) governance framework and its industry-led arrangements for consumer-led flexibility. This is an explainer session about governance arrangements rather than the framework itself.

NESO publishes BSUoS charging data including fixed tariffs, monthly forecasts, and payment calendars through March 2026. BSUoS charges recover balancing costs and are paid by final demand customers only since April 2023 reforms. Current fixed tariff structure replaced variable charges following CMP308 and CMP361 implementation.

NESO has published updated charging documentation including guidance materials, charging statements, and policy developments on its website. The documentation includes guidance on TNUoS, BSUoS, connection charges, and AAHEDC, plus current charging statements and methodology policy decisions. This consolidates existing materials rather than introducing new charges or methodologies.

Ofgem consults on Early Construction Funding (ECF) for eight Scottish Hydro Electric Transmission projects under the ASTI re-opener, allowing permitted early-construction activity to begin ahead of full planning consents.

Ofgem part-consultation, part-call for input on what roles DNOs should play in supporting the rollout of low carbon technologies (heat pumps, EV charging, solar PV) and energy efficiency measures in homes during RIIO-ED3 (starts 1 April 2028). Responses inform the ED3 methodology.

Ofgem notice proposing modifications to the RIGs for RIIO-2 Year. Annual RIGs maintenance for one of the network sectors.

Ofgem notice proposing modifications to the RIGs for RIIO-2 Year for Electricity Distribution. Annual RIGs maintenance.

Ofgem notice proposing modifications to the Regulatory Instructions and Guidance (RIGs) for RIIO-2 Year 3 for Electricity Distribution. Companion to the March 2026 RIGs consultation.

Ofgem consults on proposed updates to the RIGs (Regulatory Instructions and Guidance) data templates for the six DNOs' annual data submissions for RIIO-ED2, covering reporting from 1 April 2023 through 31 March 2028. Consultation closed 30 March 2026.

NESO publishes detailed guidance for its Enduring Auction Capability (EAC) platform, which conducts co-optimised day-ahead procurement for frequency response and reserve services. The platform uses N-SIDE's algorithm to clear Dynamic Response, Quick Reserve, and Balancing Reserve services together at 14:00 daily, with Slow Reserve to be added in March 2026. Results are published via data portal with monthly archiving for sell orders and annual archiving for other datasets.

Elexon's CFO highlights that non-commodity costs rather than wholesale prices now drive consumer bill pressure, with Market-wide Half-Hourly Settlement progressing from 3 million to target 30 million meters. Smart meter penetration has reached 60-70%, enabling time-of-use tariffs and flexibility services.

Ofgem consults on changes to RIIO-ED2 Load Related Expenditure (LRE) volume drivers: upward revision of Low Voltage Services Volume Driver unit rates, higher LVSVD ex-ante allowance for all DNOs, revision to the Secondary Reinforcement Volume Driver cap for one DNO, and reporting metric changes.

NESO has issued Gate 2 offers to transmission-connected projects under connections reform, with customers having 90 days to accept or reject offers. Projects that reject Gate 2 offers revert to Gate 1 agreements, triggering security release processes under CUSC Section 18. Technical queries must be submitted within 4 weeks of receiving offers, with transmission operators providing 2-4 week response times.

Ofgem Project Assessment of the Hackney Waltham Cross Upgrade Project (HWUP). Standard ASTI project assessment for the North London transmission reinforcement.

Ofgem consultation on Early Construction Funding and licence modification for the Tealing-Kincardine Upgrade Project. Part of the ASTI Scotland-area transmission reinforcements.

NESO proposes to remove outdated references in CUSC to three discontinued publications: Seven Year Statement, Offshore Development Information Statement, and Electricity Ten Year Statement. The modification will be presented to the CUSC Panel on 27 March 2026.

NESO proposes removing outdated references to defunct planning documents (Seven Year Statement, Offshore Development Information Statement, Electricity Ten Year Statement) from the Connection and Use of System Code. The proposal will be presented to the CUSC Panel on 27 March 2026. Cross-code impacts affect the System Operator Transmission Owner Code.

NESO has raised a modification to assess whether offshore wind farms of 90MW or more should be required to have two AC transformers at their grid connection point. The current SQSS rule 7.7.1.1 effectively mandates dual transformers for these capacities. The proposal will go to SQSS Panel on 24 March 2026.

Ofgem consultation on Edge Utility Networks Limited's proposed Safety and Security of Supplies Enquiry Service.

Ofgem consultation on proposed indicators for Ofgem performance and energy sector health. Sets out the metrics Ofgem will use to assess its own performance and the broader health of the GB energy sector.

NESO has issued the Go-Live Notice for Slow Reserve service, opening the Enduring Auction Capability (EAC) auction on 17 March with the first auction on 31 March 2026. This triggers the end of STOR service at 05:00 on 1 April 2026. Slow Reserve provides frequency management through post-fault energy balancing, requiring units to respond within 15 minutes with minimum 1MW capability.

Ofgem decision on RIIO-2 Network Asset Risk Metric methodologies audit. Confirms the audit outcome and any adjustments to NARM methodologies used across network companies.

NESO publishes a list of 35 organisations registered to provide demand flexibility services, split between domestic/micro-business (18 providers) and industrial/commercial (17 providers). The list includes contact details and notes which providers are members of the Flex Assure compliance scheme. Updated February 24, 2025.

NESO introduces a centralised customer support model for transmission-connected projects receiving connection offers under connections reform, replacing individual contract managers with a dedicated team operating to defined service levels. Customers have 90 calendar days to accept offers, with specific processes for queries, changes, and rejections. The new model provides single-route access through a portal system with structured response times for allowable modifications.

NESO publishes the Connection and Use of System Code (CUSC), which sets the contractual framework for connecting to and using the National Electricity Transmission System. The webpage provides access to code documents, modifications process, and panel information for parties seeking to connect to the transmission system.

NESO publishes standard weekly Operational Transparency Forum materials - presentation slides and recordings from system operations discussions. The forum runs every Wednesday at 11am, covering recent operational actions in the Electricity National Control Centre.

NESO launches a call for input on Reformed National Pricing (RNP) proposals to reform dispatch arrangements and electricity market design, with responses due 14 April 2026. The RNP programme aims to strengthen investment signals, improve operational efficiency, and reduce constraint costs within Great Britain's retained single national wholesale market. Government will provide legislation as required for timely delivery.

Ofgem determinations for the NESO1 Business Plan. NESO1 is the first enduring business plan period after BP3.

NESO proposes Grid Code changes to implement 'Regional Restoration Plans' following the previous GC0156 modification, standardising how transmission operators coordinate during system blackout recovery. The proposal affects all transmission system operators, transmission owners, network operators and generators, requiring workgroup development under standard governance. Cross-code impacts extend to STC and DCODE.

Ofgem selects DCC2 Ltd (a wholly-owned subsidiary of SECCo Ltd) as the Successor Licensee for the Smart Meter Communication Licence following an open competitive tender. DCC2 is a not-for-profit purpose-driven body. Main changes under DCC2: transition to majority-independent governance, transition to ex-ante cost control, business strategy and technology roadmap. Final licence to be in effect March 2026.

A request to review UK retained EU Network Codes to enable streamlining has been submitted to the Uniform Network Code panel. The proposal aims to simplify the complex web of gas market rules inherited from EU membership. This represents early-stage activity to address regulatory burden in gas network operations.

NESO submitted updated Demand Flexibility Service terms to Ofgem on 30 January 2026, with Ofgem decision expected by 30 March. The service transitioned from emergency tool to in-merit margin tool in November 2024, allowing NESO to procure demand reduction alongside other balancing services. Current domestic and business customers can participate through registered providers, earning payments for reducing consumption during called events.

NESO publishes mock auction results for its Enhanced Ancillary Services (EAC) platform, showing weekly test runs of response-reserve procurements ahead of live operations. The dataset includes buy orders, sell orders, results by unit, and summary statistics from mock auctions scheduled for late September 2023. Live EAC auctions will run daily with results published on a separate page.

Ofgem update on delays to connection dates for some TMO4+ Protected Projects. Protected Projects are those that retain their existing queue positions through the Gate 2 to Whole Queue reform.

NESO proposes GSR037 to improve formatting and readability of the System Quality of Supply Standard (SQSS), a technical document governing grid planning standards. The proposal follows standard governance and goes directly to CAC approval. SQSS Panel will review on 24 March 2026.

Ofgem consultation on equipping the OFTO regime for the future. Sets out proposed changes to position OFTO for the next phase of offshore transmission build.

Ofgem consultation on modifications to additional RIIO-3 associated documents. Follow-up to the RIIO-3 licence modifications that took effect on 1 April 2026.

Ofgem consultation on licence modifications to implement the RIIO-2 re-opener applications 2025. Translates the 2025 re-opener Final Determinations into operative licence text.

NESO announces webinars to present its transitional Regional Energy Strategic Plan (tRESP), published 30 January, plus fourth round of RESP Forums across February. The tRESP will inform distribution network operators' plans for ED3 price control covering 2028-33. Over 2,800 people attended the first three forum rounds in 2025.

NESO operates the CUSC Forum, which includes the Transmission Charging Methodologies Forum (TCMF) and CUSC Issues Steering Group (CISG). The forum provides a regular venue for industry to discuss transmission charging methodology developments and general CUSC issues. The next meeting is scheduled for 2 April 2026, with the last held on 5 March 2026.

NESO proposes extending User Commitment Methodology principles from CUSC section 15 to users under Final Sums methodology through STC modification CM093, following the approved CUSC change CMP417. The workgroup process is ongoing with meetings through March 2026. This affects how transmission users commit to infrastructure costs under different charging methodologies.

NESO publishes quarterly TNUoS tariff data across eight categories including transmission demand residual charges, generator tariffs (onshore and offshore), and embedded export tariffs. The dataset provides granular breakdown of network use charges that recover transmission system costs from users. Files are updated quarterly when tariffs are published, with data available via API and CSV download.

Ofgem consultation on the Project Assessment for the Bramford to Twinstead transmission upgrade. Bramford-Twinstead is part of the East Anglia transmission reinforcement programme.

Ofgem decision on the AI technical sandbox. Companion to the July 2025 call for input on the sandbox. Allows regulated entities to trial AI applications under controlled conditions.

Ofgem invites Expression of Interest from candidates for the code manager role across the designated energy codes. Operational step in implementing the Energy Act 2023 Code Manager regime.

NESO publishes planning methodology documents and consultation responses for Strategic Spatial Energy Plan (SSEP), Centralised Strategic Network Plan (CSNP), and transitional network planning. The SSEP draft methodology consultation closed 20 January 2025, with final methodology expected spring 2025 following government and Ofgem approval. CSNP methodology consultation launches Q2 2025, with tCSNP2 methodology submission to Ofgem by 31 March 2025.

NESO publishes comprehensive guidance for its Dynamic Services suite — Dynamic Containment (DC), Dynamic Moderation (DM) and Dynamic Regulation (DR) — which provide frequency response to keep the grid within 50Hz ±1%. The services require response times from 0.5 seconds (DC/DM) to 2 seconds (DR), with delivery duration from 15 minutes (DC) to 60 minutes (DR). Procurement occurs via the EAC platform with results published on the NESO Data Portal.

NESO publishes its C9 statements page, consolidating balancing service procurement guidelines, methodology statements, and consultation documents previously held under the C16 licence condition. The page hosts current versions of five methodology statements (Procurement Guidelines v28, Balancing Principles v26, BSAD v26, ABSVD v20, SMAF v19) effective from September 2025, plus historical versions and consultation records dating back to 2009. A 2026-27 consultation is open until February 6, 2026.

Ofgem decision on CUSC modification CMP447: Removal of designated strategic works from cancellation charges and security requirements.

Ofgem statutory consultation and decision on the licence modifications required to implement the RIIO-3 price control. Modifications take effect on 1 April 2026 for electricity transmission, gas transmission and gas distribution licences.

DESNZ proposes comprehensive cost recovery fees for energy infrastructure planning applications to replace current non-cost-reflective charges. The fixed fee model aims to generate revenue for resourcing planning decisions, with annual fee reviews and potential indicative timescales for applications without statutory deadlines. Consultation responses are due by spring 2026 with implementation following.

Ofgem consultation on enhancing asset visibility: Distribution Network Operator options. Examines how DNOs can improve visibility of distribution-network assets to support better operation and planning.

Ofgem publishes Final Determinations and direction on National Grid Electricity Transmission's Electricity Transmission Control Centre (ETCC) project under the RIIO-2 Non-Operational IT Capex Re-opener.

Ofgem consults on implementation of NESO's enduring regulatory framework, moving beyond the transitional Business Plan 3 arrangements to a steady-state regime.

Ofgem consults on implementing the load control licensing regime under the Smart Secure Electricity Systems (SSES) programme. Regulates load control of Energy Smart Appliances such as EV chargers and heat pumps for consumer protection, cyber security and grid stability. Regulations expected to come into force by end of 2026, licensing requirement by end of 2027 after a 12-month transition.

Ofgem Draft Determinations on the 2025 RIIO-2 re-opener applications, Medium projects for Electricity Transmission. Draft phase preceding Final Determinations.

DESNZ proposes creating a new Load Control Licence regime, making it illegal to control customer electricity loads without Ofgem authorisation from end-2026. The licence covers load controllers and Flexibility Service Providers, with cyber security requirements for the former and consumer protection rules for the latter. A 12-month transition period runs from licence applications opening to enforcement.

Ofgem consults on the approach to evaluating code manager candidates as part of a competitive licensing assessment, alongside amended draft guidance. Sixteen responses received from suppliers, charities, code administrators and delivery bodies; most supportive.

Ofgem directs that NESO's Network Options Assessment (NOA) and Electricity Ten Year Statement (ETYS) publication move from January to June 2026, giving NESO time to incorporate Connections Reform into the second transitional Centralised Strategic Network Plan refresh (tCSNP2r). The NOA for interconnectors is suspended pending the Strategic Spatial Energy Plan and CSNP.

Ofgem publishes Final Determinations for the RIIO-3 price control covering Electricity Transmission, Gas Distribution and Gas Transmission for the period 1 April 2026 to 31 March 2031. RIIO-3 succeeds RIIO-2 which ends on 31 March 2026.

Ofgem implements licence changes to Special Condition 5.2 of the Electricity Distribution Licence to give DNOs access to additional Network Innovation Allowance funding for the final two years of RIIO-ED2 (2026-28). Changes take effect on 27 March 2026.

Ofgem updates the RIIO-2 Network Innovation Allowance (NIA) Governance Document to let DNOs continue registering projects past 31 March 2026, running through to the start of RIIO-ED3 on 1 April 2028. Gas TOs and electricity TOs operate under the RIIO-3 NIA Governance Document.

CMP466 enables generators to recover costs of providing Electromagnetic Transient (EMT) models required under Grid Code GC0168. The modification follows after CMP456 and addresses the financial burden placed on existing generators, particularly older plant with complex systems. CUSC Panel initially rejected urgency but assigned high priority status on 5 February 2026.

DESNZ proposes mandatory smart functionality for energy smart appliances (ESAs), including minimum requirements for grid stability, cybersecurity, and consumer switching protection. Phase 1 regulations introduce smart mandates for electric heating appliances and consolidate electric vehicle charging point rules into a single ESA framework. Phase 2 regulations, planned for 2027, will add interoperability requirements to prevent consumer lock-in to specific flexibility service providers.

Ofgem statutory consultation under the Energy Act 2023 on harmonising the code modification prioritisation process across all designated codes. Proposes a consistent process for assigning priority to modifications and a licence obligation on code managers to cooperate with prioritisation that supports SDS alignment.

Ofgem decision on Distribution Connection and Use of System Agreement modification DCP439.

Ofgem consultation on regular data reporting guidance for heat network regulation. Sets out the data heat network operators will need to report under the new regulatory framework.

Ofgem decides on Early Construction Funding for six NGET projects under the ASTI re-opener: GWNC, PTC1/PPTNO, CGNC, EDN2, Brinsworth to High Marnham (EDEU) and Norwich to Tilbury (AENC, ATNC). Allowances adjusted via Special Condition 3.41 to permit NGET's ECF expenditure request.

Ofgem consults on proposed amendments to the Data Assurance Guidance for the March 2026 RIIO-2 submission round.

NESO proposes increasing minimum reactive power requirements for full converter technology Power Park Modules operating below maximum active power output through Grid Code modification GC0184. The Grid Code Review Panel rejected the proposal on 13 November 2025, stating it did not identify a clear defect. The proposer is considering next steps.

Ofgem statutory consultation on Phase 1 of a Debt Relief Scheme (DRS) for customers in energy-bill debt from the energy crisis. Requires data sharing between energy suppliers and DWP on Means Tested Benefits eligibility; implementation planned for early 2026 subject to enabling legislation.

NESO proposes to align operational criteria for low probability, low impact secured events between England/Wales and Scotland through SQSS modification GSR035. The workgroup phase begins March 2026 following panel approval in February. This affects transmission security standards that determine when networks must be reinforced.

NESO proposes reviewing voltage limits that apply during operational timescales and introducing flexibility around these constraints. The modification affects transmission owners, NESO, distribution networks, generators, and directly connected customers. Cross-code changes to Grid Code and STC may be required.

Ofgem consultation on a review of shrinkage volumes on the National Transmission System (NTS). Shrinkage is the gas lost or consumed during transmission, recovered through allowed revenue.

Ofgem consults on the substantive authorisation conditions for heat networks regulation, building on the registration/nominated-operator/notification framework consulted on earlier in 2025.

Ofgem decides to allow gas transporter traditional metering obligations to expire on 31 December 2025 and replaces them with a 12-month voluntary agreement for a smooth transition. Six responses received, all broadly supportive.

Ofgem consults on additional guidance for determining disputes when connecting to the electricity grid, specifically for entities receiving a new connection offer as part of the unique Gate 2 to Whole Queue exercise under the TMO4+ Connections Reform package. 31 responses received.

Ofgem approved CMP463, freezing Specific Onshore Expansion Factors at 2025/26 levels from 1 April 2026. The modification prevents large unexpected increases in these TNUoS charges that would have resulted from the 2026 Price Control. The freeze is temporary, pending a fundamental TNUoS review.

Ofgem consultation on the Consumer Consent Impact Assessment. Sister to the August 2024 Consumer Consent Solution consultation; assesses costs and benefits of the proposed cross-system consent layer.

Ofgem decision on UNC modification 0884.

Ofgem consults on Smart Meter Communication Licence modifications to handle cost recovery between the current Licensee (DCC1) and Successor Licensee (DCC2) during the Business Handover. The decision expands Pass-Through Costs to let DCC2 recover legitimate handover costs before levying its own service charges.

Ofgem minded-to position to approve the Original Proposal of CUSC modification CMP448, which introduces a progression commitment fee in the connections process. 40 responses received (25 non-confidential).

Ofgem consults on licence modifications giving NESO a statutory obligation to produce Regional Energy Strategic Plans (RESPs), with parallel obligations on DNOs and gas distribution networks to participate. Guidance covers RESP methodology, governance and information-sharing.

Ofgem consultation on modifying the special conditions of the National Gas Transmission (NGT) gas transporter licence.

Ofgem approves BSC modification P496, clarifying that transactional data from message headers (Common Blocks) is within the Data Integration Platform (DIP) Manager Data definition, and enabling the DIP Manager to share that data with code bodies for specified purposes on a continuous basis.

Ofgem consults on pre-construction funding and licence modifications for Scottish Hydro Electric Transmission.

Ofgem sector-specific methodology consultation for the electricity distribution price control RIIO-ED3, which runs from 1 April 2028.

NESO publishes real-time physical notifications data from non-Balancing Mechanism service providers through its Open Balancing Platform system. The platform currently hosts Quick Reserve Service data, with Slow Reserve and Dynamic Response data to be added as those services launch. This provides transparency into how flexibility providers declare their availability to the system operator.

NESO now publishes real-time reserve availability and utilisation prices for non-balancing mechanism services through its Open Balancing Platform. Quick Reserve service data is live, with Slow Reserve data to follow when that service launches. This creates transparency on ancillary service costs and provider behaviour previously hidden from the market.

Ofgem consultation on a requirement to offer lower standing-charge tariffs. Would oblige suppliers to provide a tariff option with a reduced (or zero) standing charge alongside their default tariffs.

Ofgem proposes requiring domestic energy suppliers with over 50,000 customers to offer tariffs with standing charges at least £150 below the price cap nil consumption level. The requirement would apply to all payment methods and meter types, with suppliers able to restrict eligibility to consumers using above minimum consumption thresholds (666kWh electricity, 2,836kWh gas annually). Implementation would begin early 2026 with a two-year sunset clause.

Ofgem decides on the Market Facilitator Blueprint, with Elexon moving from Market Facilitator Implementation Services to Operational Services. The Market Facilitator goes live on 12 December 2025. The blueprint sets governance, regulatory documents and licence conditions for the new flexibility market coordination function.

Ofgem consults on the draft of the new Smart Meter Communication Licence (the Successor Licence that DCC2 will hold from March 2026).

Ofgem consults on Material Scope Change and Early Construction Funding treatment within the Accelerated Strategic Transmission Investment (ASTI) regime.

Ofgem statutory consultation on proposed modifications to Offshore Transmission Owner (OFTO) Licences.

Ofgem consults on a proposed methodology for calculating a ceiling on costs of 4G Communications Hub-only exchange site visits in the smart metering rollout.

Ofgem statutory consultation in relation to Sphere Energy Connect Limited.

Ofgem end-scheme assessment of NESO's Business Plan 2 performance. Final assessment of the predecessor ESO's performance under the BP2 scheme before the BP3 transition.

Ofgem decision on heat network consumer protection guidance. The guidance supports the Heat Networks (Market Framework) (Great Britain) Regulations 2025, finalised ahead of regulatory commencement.

Ofgem consultation on ways forward for an OFTO Build early competition model. Examines how to introduce competitive procurement into the offshore transmission build phase.

Ofgem notice: AGR Networks Limited has been granted an electricity distribution licence. Routine administrative notice.

Ofgem consults on a Front End Engineering Design (FEED) reopener for the North West and St Fergus to Teesside hydrogen transport projects. FEED funding enables detailed design work before final investment decision.

Ofgem consults on three draft authorisation conditions for heat networks under the forthcoming regulatory framework: Registration with the Authority, Nominated Operator, and Notification of Changes. Eighteen stakeholders broadly supported the drafting.

Ofgem decision on the enduring regulatory framework for NESO. Operative move beyond the transitional Business Plan 3 phase to a steady-state regime.

Ofgem decision on NESO Business Plan Guidance. Operative outcome of the May 2025 consultation. Sets how NESO frames future business plans under the enduring regulatory framework.

Ofgem notice of proposed modifications to the Regulatory Financial Reporting Pack template and guidance.

Ofgem decides to create a new pass-through mechanism in the RIIO-ED2 price control for DNOs to recover the one-off costs of implementing TMO4+ Connections Reform, specifically the Gate 2 to Whole Queue Exercise. A new Connections Reform Costs Governance Document defines what counts as recoverable. Licence modifications effective 27 January 2026.

Ofgem notice: Grid Line Power Networks Ltd applies for an electricity distribution licence. Routine administrative notice.

Ofgem consultation on proposed guidance for appeals of Data Integration Platform (DIP) Change and Advisory Board determinations.

Ofgem decision on UNC modification 0887: Facilitating Bi-Directional Connections Between IGT Pipelines and the National Transmission System (NTS).

Ofgem publishes final decisions on Last Resort Supply Payment (LRSP) claims for 2025. LRSPs let Suppliers of Last Resort recover additional costs of taking on transferred customers when another supplier fails; the cost is socialised through gas and electricity network charges which suppliers then pay.

Ofgem consultation on RIIO-ED2 Network Innovation Allowance (NIA) funding for the years 2026-27 and 2027-28.

Ofgem consults on NESO's Frequency Risk and Control Report (FRCR) 2025. The FRCR sets out NESO's view on frequency-related risks and how it intends to manage them, including reserve and response service requirements.

Ofgem statutory consultation on smart meter Guaranteed Standards of Performance. Extends the GSOP automatic compensation regime to cover smart meter-specific service failures.

Ofgem consults on measures to mitigate the financial failure of heat networks in GB. Proposals cover scope of financial provisions, continuity arrangements, and regular financial monitoring. 31 responses received from consumer advocates, network operators, suppliers, housing associations and local authorities.

DESNZ proposes extending smart meter installation obligations beyond 2025, requiring suppliers to complete domestic rollout by 2030 and improve operational performance. Current annual installation targets end 31 December 2025. Suppliers would submit annual deployment plans and face new obligations on meter functionality.

DESNZ consults on bill discount scheme design for residents living near new or significantly upgraded transmission infrastructure. The scheme would provide direct bill reductions to households in defined proximity to transmission projects. Consultation closes on a date not specified in the provided content.

NESO proposes to socialise transmission connection asset costs and cap customer contributions through CUSC modification CMP460. The modification seeks to create more certain charging by reducing direct customer charges for connection infrastructure. Workgroup consultation runs 28 January to 18 February 2026.

NESO Open Balancing Platform (OBP) Non-BM Instructions dataset. Tracks instructions issued through the OBP to non-balancing-mechanism providers.

Ofgem Request for Information on the Gas Disconnections Framework Review. Follow-up to the January 2025 review consultation.

Ofgem decision on the Supplier of Last Resort Levy Offset mechanism. Companion to the September 2024 statutory consultation. Determines how the costs of SoLR appointments flow through to consumers via network charges.

Ofgem decides on the Centralised Strategic Network Plan (CSNP) guidance covering NESO's expectations and methodology requirements. The CSNP will be an independent, coordinated, long-term whole-system plan for electricity and natural gas transmission and for hydrogen transport and storage. 21 responses received.

DESNZ proposes to transfer governance of technical and security standards for smart energy devices from government to industry-led arrangements under Elexon's management through Balancing and Settlement Code modifications. The governance would manage requirements for domestic EV chargers, heat pumps, and other flexibility devices. Costs would be recovered through BSC levies on industry participants.

Ofgem publishes its preliminary Strategic Direction Statement (SDS) and associated code governance changes: a consistent modification prioritisation process and a licence obligation on code managers to cooperate with modifications that support SDS alignment.

Ofgem publishes its preliminary Strategic Direction Statement (SDS) for industry codes. Sets out a strategic assessment of government and Ofgem policies that will or may require code modifications. Published ahead of the first code manager appointments in 2026.

Ofgem decides on draft Regulatory Instructions and Guidance (RIGs) for the DCC Successor Licensee. RIGs set the data and reporting requirements the Successor Licensee must comply with. Follows the December 2024 policy consultation on the determination of Allowed Revenue.

Performance Panel's end-scheme report on NESO's performance over the BP2 period. Independent panel assessment that feeds into Ofgem's end-scheme assessment.

Ofgem reviews how energy system costs are allocated and recovered across electricity and gas consumers. Examines whether the current split of network, policy, and balancing costs between fuels and customer groups is fit for purpose.

Ofgem opens review of energy system cost allocation and recovery, examining how network, wholesale, policy, and retail costs are recovered from domestic and non-domestic consumers. The review considers alternatives to current standing charge structure, including block tariffs, time-of-use charging, location-based pricing, and ability-to-pay options. Consultation closes 24 September 2025 with policy options expected end-2025.

Ofgem approves Early Construction Funding for the Sea Link electricity transmission project (NOA code SCD1). Decision taken under NGET's transmission licence Special Condition 3.41 (the ASTI Re-opener).

Ofgem launches a call for input on a proposed AI technical sandbox to allow regulated entities to trial AI applications under controlled conditions.

Ofgem consults on new Regulatory Instructions and Guidance (RIGs) for the Sizewell C nuclear licensee, the regulated entity that will hold the licence for the project funded under the Nuclear RAB model.

DESNZ consults on creating a consumer engagement framework to increase uptake of demand-side flexibility through information campaigns and coordination between existing organisations. The consultation explores government's role in promoting voluntary demand shifting but proposes no specific mechanisms, charges, or market changes. This is a consultation about whether to consult further on detailed proposals.

DESNZ launches consultation on improving visibility of distributed energy assets including EV chargers, solar panels, heat pumps and batteries through better data collection from installation to operation. The consultation seeks views on strategic data flows and options for mandating asset registration. No specific mechanisms or costs are proposed at this stage.

Ofgem publishes Final Determinations on RIIO-2 re-opener applications from Electricity Transmission, Electricity Distribution and Gas Distribution network companies for additional project allowances under the price control's uncertainty mechanisms.

Ofgem decision on SSEN's Insulation and Interruption Gas Exceptional Event Claim. Sister to the May 2025 SSEN claim publication.

Ofgem decision on Terms of Reference for the Customer Challenge Group and on Business Plan Guidance for the DCC Successor Licence. Companion to the May 2025 consultation.

UNC modification 0886V amends the Code Cut-Off Date from a fixed annual date to a rolling period mechanism for gas network code changes. The modification has been implemented following Authority direction. This affects Independent Gas Transporters (IGTs) alongside the main gas distribution networks.

Ofgem consultation on a derogation request from NESO regarding changes to the content of the Future Energy Scenario 2025 publication.

Ofgem consults on the further evolution of the Offshore Transmission Owner (OFTO) regime as a mature asset class, building on more than a decade of operation since the first competitive tender round.

Ofgem completes the Post Construction Review of the Viking Link Interconnector to Denmark. Sets the long-term cap-and-floor revenue position following construction cost confirmation.

Ofgem notice: E.ON UK Network Assets Limited has been granted an electricity distribution licence. Routine administrative notice.

Ofgem policy consultation on the licence modifications and guidance document needed to give NESO a statutory obligation to produce Regional Energy Strategic Plans (RESPs), with parallel obligations on DNOs and GDNs.

NESO is revising the Obligatory Reactive Power Service (ORPS) compensation methodology through CUSC modification CMP457, moving away from gas price-based rates. The Standard Governance workgroup process begins after 13 November 2025, following unanimous CUSC Panel approval in October. Current ORPS costs reflect gas prices despite the shift to low-carbon generation requiring grid stability services.

Ofgem decision on OFTO extension and evolution of the mature asset class. Operative outcome of the December 2024 consultation.

Ofgem rejects CUSC modification CMP444, which would have placed upper and lower limits on the absolute £/kW Peak, Year-Round Shared and Year-Round Not Shared Wider generation TNUoS tariffs. 25 responses received including four confidential. Ofgem concludes none of the modification proposals would better facilitate the Applicable CUSC Objectives.

Ofgem consults on proposed licence conditions to support the operation of the Market Facilitator. Predecessor to the September 2025 blueprint decision and December 2025 go-live.

NESO introduces Grid Code modification GC0183 requiring generators and interconnectors to notify their intended availability during severe space weather events. Ofgem approved the modification on 20 November 2025 with implementation on 4 December. The modification proceeded through urgent procedures due to national security implications.

DESNZ consults on streamlining land rights and consents processes for electricity network infrastructure to enable faster deployment. The consultation follows a 2022 call for evidence and targets reducing costs, complexity and delays that currently hinder network projects. Minor changes to existing infrastructure will be fast-tracked to free resources for complex cases requiring detailed scrutiny.

Ofgem notice: Sphere Energy Connect Limited applies for an electricity distribution licence. Routine administrative notice.

NESO proposes standardising power flow metering polarity across all parties sending data to the system operator. The modification creates a unified diagram and description format for how power flow direction is reported. Workgroups begin March 2026 with transmission system owners, interconnectors and network operators most affected.

Ofgem consultation on proposed amendments to balancing terms and conditions related to the Quick Reserve Phase service.

Ofgem decides on modifications to the Smart Meter Communication Licence for transition to ex-ante cost control and other changes required for licence closure.

Ofgem opens an enforcement investigation into National Grid Electricity Transmission's compliance with Section 9(2) of the Electricity Act 1989 and SLC B7(1) of its Electricity Transmission Licence in relation to the March 2025 power outage at the North Hyde 275kV substation in West London, which lost all supplies to thousands of customers including Heathrow Airport.

Ofgem publishes RIIO-3 Draft Determinations for Electricity Transmission, Gas Distribution and Gas Transmission. The Final Determinations followed in December 2025; RIIO-3 runs from 1 April 2026 to 31 March 2031.

Ofgem decides to modify the Price Control Financial Instruments (PCFIs) and associated licence conditions for gas and electricity transmission and distribution licensees.

Ofgem decision on NARM handbook updates: the threshold for justifying Clearly Identifiable Over or Under Delivery under the Network Asset Risk Metric mechanism. Companion to the April 2025 consultation.

Ofgem decides to apply Data Best Practice (DBP) obligations to the Smart Meter Communication Licence (DCC) at this stage, rather than to all licensed code managers immediately. Further consultations will extend DBP into wider code governance as code managers are licensed under the Energy Act 2023.

Grid Code modification GC0181 proposes to improve system incident reporting procedures to make technical requirement monitoring more effective. The modification follows standard governance with workgroups, currently seeking further development work before Panel determination. Low impact identified on Transmission System Owners.

Ofgem decision on 2025 modifications to the Regulatory Financial Performance Reporting (RFPR) framework.

Ofgem consultation on E.ON UK Network Assets Limited's proposed Safety and Security of Supplies Enquiry Service.

CMP456 creates a cost recovery mechanism for generators required to produce Electro Magnetic Transient (EMT) models under GC0168, shifting the financial burden from plant operators to system users. The modification addresses 'significant' costs imposed on older generators with multiple discrete systems who gain no direct benefit from producing these grid stability models. Authority rejected urgent processing in December 2024, with the CUSC Panel designating this high priority in January 2025.

Ofgem consults on draft Regulatory Instructions and Guidance (RIGs) for the DCC Successor Licensee. RIGs set out the data and reporting requirements that the Successor Licensee must comply with.

Ofgem notice: Edge Utility Networks Limited applies for an electricity distribution licence. Routine administrative notice.

Ofgem decision to modify the special licence conditions in the electricity transmission licences.

Ofgem decision on the Market Facilitator policy framework. Companion to the December 2024 consultation; sets the operative policy framework that fed into the September 2025 blueprint decision.

Ofgem decision on the Temporary Facilitative Licence Condition. Operative bridge condition supporting the NESO transition. Companion to the April 2024 statutory consultation.

Ofgem publishes conclusions from Phase 2 of the DCC Review on strategy-setting, objectives, operational model and scope of Authorised Business under the DCC Successor Licence. The current DCC Licence expires September 2027.

Ofgem opens investigations into Cadent Gas Limited, Scotland Gas Networks Plc and Southern Gas Networks Plc compliance with obligations under their Gas Transporter Licences.

Ofgem republishes the RIIO-GT2 Price Control Financial Model following the Annual Iteration Process. Routine mechanical update to NGT's allowed revenue for the next charging year.

Ofgem opens the consultation on NESO's enduring regulatory framework, moving beyond the transitional Business Plan 3 arrangements toward a steady-state regime. Decision document followed in December 2025.

Ofgem consultation on Business Plan Guidance for NESO. Sets out how NESO should prepare future business plans (post-BP3) for the enduring regulatory framework.

Ofgem update on the decision timing for CMP444, the cap-and-floor on wider generation TNUoS charges modification. CMP444 was subsequently rejected in July 2025.

Ofgem decision on modifications to NGET's licence in relation to consequential costs from ESO separation. Companion to the January 2025 statutory consultation.

Ofgem update and summary of responses on the Transmission Constraint Licence Condition (TCLC) call for input. TCLC restricts generators from exploiting market power during constrained periods.

Ofgem decision to approve SEC modification MP219: Accessing Consumption Data on behalf of SEC Parties.

Ofgem decision on code manager selection following the energy code reform competitive code manager selection consultation. Sets the operative process by which Code Managers will be chosen for each designated code.

Ofgem consultation on NGET licence modifications for Large Onshore Transmission Investment. Provides the licence machinery for large onshore transmission projects under NGET's licence.

Ofgem publishes Phase 2 conclusions on the process for determining DCC's Allowed Revenue (cost control) under the Successor Licence. Companion to the earlier Phase 2 decisions on governance, operational model, and Centralised Registration Service.

Ofgem consults on interim changes to the Smart Meter Communication Licence to transition to ex-ante cost control before the current Licence expires in 2027, and to administer the final Price Control.

Ofgem consults on draft Terms of Reference for a Customer Challenge Group and draft Business Plan Guidance for the DCC2 Successor Licence.

Ofgem decision on SSEN's Insulation and Interruption Gas Exceptional Event Claim. Allows recovery of costs from an unexpected event affecting gas-network operations.

DESNZ consults on mandating solar canopies on new outdoor car parks above an unspecified size threshold, covering public and private sites. The consultation also seeks views on expanding permitted development rights for EV charging infrastructure to reduce planning barriers. The solar mandate would apply to new car parks, with exploration of retrofitting existing facilities.

Ofgem consults on modifications to the Electricity System Operator Licence to enable Early Competition in onshore electricity transmission. Companion to the April 2025 Regulations under which a CATO can be appointed to design, finance, build and operate transmission assets.

DESNZ and Ofgem propose standard licence conditions for code managers and update CMA appeals process following Energy Act 2023. Code managers will replace industry panels with licensed entities that set budgets, recommend modifications to Ofgem, and align codes with Ofgem's Strategic Direction Statement. Appeals trigger when Ofgem disagrees with code manager recommendations, replacing current panel-based triggers.

DESNZ and Ofgem propose licence conditions for code managers and an appeals process to the Competition and Markets Authority for code modification decisions. The consultation follows 2024 regulations that enable Ofgem to select code managers. Appeals would allow industry parties to challenge Ofgem's decisions on code modifications through the CMA.

Ofgem Framework decision for the electricity distribution price control ED3, running from 1 April 2028. Follows the November 2024 Framework consultation.

Ofgem consultation on proposed changes to the NESO Regulatory Instructions and Guidance and Reporting Pack. RIGs set NESO's operational and performance reporting obligations.

Ofgem consults on fair pricing protections for heat network consumers. Part of the broader heat networks regulation framework under the Energy Act 2023.

CMP453 proposes to charge BSUoS on net rather than gross flows for BSC Trading Units, meaning customers who export more than they import would not pay system balancing costs. The CUSC Panel recommended the change by majority on 31 October 2025, with the Final Modification Report sent to Ofgem on 11 November 2025. The modification follows Standard Governance through a Workgroup process.

Ofgem decision on the Consumer Consent Solution. Defines how consumers grant and withdraw consent for their data to flow between regulated and unregulated parties in the energy system.

Ofgem decisions on Strategic Innovation Fund Cycle 2 project funding. SIF is the larger-scale innovation funding mechanism alongside NIA.

Ofgem statutory consultation to modify the Price Control Financial Instruments and licence conditions for gas and electricity transmission and distribution licensees. Companion to the July 2025 decision.

Ofgem decision on modifications to the special licence conditions in the electricity transmission licences.

Ofgem publishes the TM04+ Connections Reform decision: a suite of decisions and supporting documents enabling the connections reform package. Covers code modifications (CM095, CMP434, CMP435), connections methodologies (Gate 2 Criteria, Project Designation, Network Design), and licence changes following the February 2025 statutory consultation. Plus an Impact Assessment.

Ofgem notice: Yorkshire Reactive Power Limited applies for an electricity transmission licence. Routine administrative notice.

Ofgem consultation on modifications to Gas Transmission Regulatory Instructions and Guidance and Regulatory Reporting framework.

Ofgem decision on updates to the Strategic Innovation Fund governance document. Companion to the February 2025 consultation.

Ofgem climate resilience report - fourth round reporting. Tracks how regulated energy companies are preparing for climate change impacts on their assets and operations.

Ofgem decision on further detailed regime parameters for the Offshore Hybrid Asset (OHA) pilot scheme.

Ofgem statutory consultation on the unit cost of risk threshold for Clearly Identifiable Over and Under Deliveries under the Network Asset Risk Metric (NARM) Funding Adjustment and Penalty Mechanism. Companion to the qualifying criteria consultation.

Ofgem makes decisions following the second implementation consultation on energy code reform. Areas covered: future code modification process, stakeholder advisory forums, cross-cutting consequential code changes, BSC/REC cost recovery, directing central system delivery bodies, implementation and assurance, transition.

Ofgem decides on the policy framework for the Regional Energy Strategic Plan (RESP). Introduces RESPs as the regional strategic-planning instrument delivered by NESO, convening regional stakeholders around a common view of how the energy system will develop.

Ofgem consultation on regulatory arrangements for dedicated provision of network services. Examines how DNOs and other parties can provide dedicated services on behalf of large customers.

Ofgem consultation on governance of the Data Sharing Infrastructure (DSI). DSI is the cross-industry data-sharing layer underpinning the digital energy system.

Ofgem decision on the two NESO Associated Documents for the BP3 period: the NESO Licence Expectations Document (previously the Roles Guidance) and the NESO Performance Arrangements Governance Document.

Ofgem publishes Draft Determinations on NESO's Business Plan 3 (BP3) for the RIIO-2 period. Sets out preliminary positions on NESO's funding envelope and performance incentives.

Ofgem publishes its Final Forward Work Programme for 2025-26. Sets out Ofgem's priorities, planned consultations and resource allocation for the regulatory year.

DESNZ seeks technical evidence on hydrogen-to-power projects that can deploy by 2030 without large-scale hydrogen infrastructure. The consultation targets developers with existing H2P deployment plans. No policy changes or funding commitments are proposed — this is information gathering for future policy development.

Ofgem Draft Determinations on Front End Engineering Design (FEED) funding applications for the East Coast hydrogen network and Hyline Cymru hydrogen pipeline projects.

Ofgem consultation on modifications to Gas Distribution Regulatory Instructions and Guidance and Regulatory Reporting framework.

Ofgem decision on 2025-26 Interest During Construction (IDC) rates for offshore transmission projects.

Ofgem consultation on additional Network Innovation Allowance (NIA) funding under RIIO-2.

Ofgem statutory consultation to modify the special licence conditions in the electricity transmission licences.

Ofgem decision on changes to the electricity Distribution System Operation (DSO) incentive governance document and associated Regulatory Instructions and Guidance (RIGs). Sister decision to the January 2025 consultation.

Ofgem opens an Expression of Interest process for prospective applicants for the new Smart Meter Communication Licence. Precedes the formal competitive tender that ultimately selected DCC2 Ltd in February 2026.

GC0178 seeks to specify limits on temporary overvoltage events and clarify generator obligations during such events. The modification is proceeding through Standard Governance and has been paused to allow appointment of a consultant to scope the work. High impact parties include generators, transmission owners, and interconnectors.

NESO proposes removing Balancing Codes 4 and 5 from the Grid Code, which cover TERRE cross-border balancing processes that became obsolete after Brexit. The modification eliminates administrative complexity from terminated EU market coupling arrangements. Final decision expected March 2026.

Ofgem determines the basis of selection for the Code Manager for the Balancing and Settlement Code (BSC). Sets out whether the role goes by default to the incumbent (Elexon) or via competitive process.

Ofgem decision on flexibility market asset registration. Companion to the July 2024 consultation; defines the registry rules that govern which assets are visible to the Market Facilitator.

Ofgem consults on additional Network Innovation Allowance (NIA) funding for National Gas Transmission.

Ofgem approves a proposed transportation agreement between GNI (UK) and Premier Transmission Limited, governing the commercial terms for the Scotland-Northern Ireland gas pipeline interconnector.

Ofgem notice: E.ON UK Network Assets Limited applies for an electricity distribution licence. Routine administrative notice.

Ofgem Electricity Interconnector Use of Revenues report 2024. Reports on how cap-and-floor interconnectors use the revenues they collect from cross-border electricity flows.

Ofgem DCC Price Control decision for regulatory year 2023-24. Sister to the 2024-25 DCC Price Control decision (published Mar 2026).

Ofgem decision to introduce a Network Charging Compensation (NCC) scheme allowance in the energy price cap. Operative outcome of the December 2024 consultation.

Ofgem Regional Energy Strategic Plan Impact Assessment consultation. Quantifies the expected costs and benefits of introducing the RESP framework.

Ofgem notice proposing modifications to the RIGs for RIIO-2 Year. Earlier instance in the rolling RIGs maintenance cycle.

Ofgem consults on proposed modifications to the Re-opener Guidance and Application Requirements Document used by network companies submitting re-opener applications under RIIO-2.

Ofgem consultation on updates to the Strategic Innovation Fund (SIF) governance document.

Ofgem consults on connection reform (TM04+) enablers, including a statutory consultation component for licence changes needed to implement the Connections Reform package.

Ofgem notice: Vital Energi Power Networks Limited has been granted an electricity distribution licence. Routine administrative notice.

Ofgem consultation on proposed modifications to Special Conditions 1.1 and 3.18 of the gas transporter licences.

Ofgem consultation on Vital Energi Power Network Limited's proposed safety and security of supplies enquiry service.

Ofgem decides on derogation requests from DNOs from the 15-month notice period for DUoS charging methodologies, where excessive surplus residual charges have been identified. LDNOs operating within affected areas are directed to deviate from their 14-month notice period for the 2026-27 charging year.

Ofgem consults on two draft NESO regulatory documents for the RIIO-2 Business Plan 3 (BP3) period: the Licence Expectations Document (previously called Roles Guidance) and the Performance Arrangements Governance Document.

Ofgem consults on the preliminary Strategic Direction Statement (SDS) and supporting governance changes for industry codes. The SDS is the new Energy Act 2023 instrument by which Ofgem directs the strategic development of designated codes.

Ofgem publishes the 2024 Annual Iteration Process (AIP) for Electricity Transmission, Gas Distribution and Gas Transmission price controls, updating Allowed Revenues for 2025-26 across the ET2, GD2 and GT2 settlements.

Ofgem open letter on the approach to prioritisation of electricity transmission network charging methodology modifications.

Ofgem call for input on the Independent Gas Transporters' Relative Price Control. iGTs are gas networks serving new-build housing developments; the Relative Price Control governs their charges relative to the incumbent gas distribution network.

Ofgem determination on Gwynt y Mor OFTO plc under paragraph 23 of Amended Standard Condition E12-J.

Ofgem consults on Early Construction Funding for the Denny Wishaw electricity transmission project and a proposed modification to the transmission licence to enable it.

NESO data portal page for Non-BM Ancillary Service Dispatch Platform window prices submitted by service providers.

Ofgem consultation on an asset health re-opener application submitted by National Gas Transmission. Re-opener allows additional allowance for unforeseen asset-health-related capex.

Ofgem consults on changes to the electricity Distribution System Operation (DSO) incentive governance document and associated Regulatory Instructions and Guidance (RIGs).

Ofgem Phase 2 conclusions on Governance Arrangements for the DCC Successor Licence. Companion to the May 2025 Allowed Revenue conclusions and the June 2025 DCC Review Phase 2 publication.

Ofgem consults on Scottish and Southern Electricity Networks' 2024 Skye-Uist project re-opener application under RIIO-2.

Ofgem decision on joint direction and Letter of Comfort requests on cut-over arrangements for new networks. Cut-over is the operational handover when new transmission or distribution assets come into service.

Ofgem statutory consultation on modifications to NGET's licence in relation to consequential costs from the separation of the Electricity System Operator. Sister to the September 2024 funding decision.

Ofgem reviews the regulatory framework for households exercising their right to disconnect from the gas network and electrify their homes. The current process is reportedly costly and a barrier to fuel switching. Call for evidence closed 8 March 2025.

DESNZ proposes a Smart Data scheme allowing customers to share energy consumption data with authorised third parties for tariff comparison and personalised services. The consultation seeks views on scope, governance, and implementation design. No specific timeline or regulatory framework is outlined.

Ofgem direction under Part F of Condition C15 of the Electricity System Operator Licence.

NESO proposes Grid Code changes to replace Mandatory Frequency Response (MFR) with a new Real-time Dynamic Regulation service from 2026/27. The two products will run in parallel until 2029 before MFR is phased out. The Panel rejected the initial proposal in March 2026 for lacking clarity on defect and scope.

Ofgem notice of a transportation services direction for Stark Infra-Gas Limited following the August 2024 licence transfer.

DESNZ launches a review of Ofgem's role and powers, citing consumer protection concerns and the need for higher standards in energy markets. The review will examine the regulator's functions and delivery mechanisms. No specific timeline or scope limitations are provided.

Ofgem call for evidence on network company Business Plans for RIIO-3, covering electricity transmission, gas transmission and gas distribution. Inputs feed into the RIIO-3 Final Determinations published December 2025.

NESO releases a new dataset calculating skip rates per 30-minute period using methodology developed with LCP Delta. The data shows skip rates following each stage of exclusions as set out in their published methodology. The dataset is accompanied by an online dashboard for market participants.

DESNZ proposes changes to Capacity Market rules to improve demand side response (DSR) participation and delivery assurance. The consultation covers DSR technology categorisation and testing processes. The proposals aim to better integrate consumer-led flexibility within existing capacity procurement.

Ofgem consults on guidance for the use of artificial intelligence in the energy sector. Sets out regulatory expectations for AI applications used by licensees and other regulated entities.

Ofgem decisions on Last Resort Supply Payment claims for 2024. LRSPs allow Suppliers of Last Resort to recover additional costs of taking on transferred customers when another supplier fails; the cost is socialised through gas and electricity network charges.

Ofgem consults on draft guidance for AI deployment across energy sector operations, covering safety, security, fairness and sustainability criteria. The guidance aims to streamline regulatory compliance by mapping AI use cases to existing regulatory frameworks rather than creating new rules. Consultation runs until spring 2025 with regulatory laboratory sessions in February.

Ofgem updates its standing-charges review. The fixed-cost portion of consumer bills, including networks, social schemes and supplier customer service, is growing as the system gets more capital-intensive. The review considers shifting some fixed costs into unit rates, with distributional implications across high- and low-consumption households.

Ofgem consultation on introducing a Network Charge Compensation allowance within the energy price cap. The allowance would compensate suppliers for variations in network charges between cap-setting windows.

Ofgem Strategic Innovation Fund Cycle 1 funding decisions. Confirms which SIF Cycle 1 projects receive funding.

Ofgem consultation on the design of the future cost control arrangements for the DCC under the Successor Licence. Companion to the May 2025 Phase 2 conclusions decision.

Ofgem decision on licence modifications for SQSS code maintenance. Sister to the October 2024 statutory consultation.

Ofgem decision on the funding and approval framework for the onshore transitional Centralised Strategic Network Plan (tCSNP). Follows the August 2024 consultation.

Ofgem consultation on extension and evolution of OFTO as a mature asset class. Companion to the July 2025 further-evolution consultation.

Ofgem consultation on the policy framework for the Market Facilitator. Confirms Elexon as the market facilitator and sets out the policy design that fed into the 12 December 2025 go-live. Predecessor to the blueprint decision (September 2025).

Ofgem decides on modifications to the special licence conditions in the electricity transmission licences relating to Accelerated Strategic Transmission Investment (ASTI).

Ofgem consultation on proposed amendments to the Data Assurance Guidance (DAG) submissions for the December 2024 RIIO-2 reporting cycle.

Ofgem statutory consultation on proposed modifications to the special conditions of the electricity distribution licences.

Ofgem publishes Final Determinations on the 2024 RIIO-2 re-opener applications across Electricity Transmission, Electricity Distribution and Gas Distribution.

Ofgem statutory consultation on proposed modifications to the special conditions of the gas transporter licences.

Ofgem decision on modification of the special conditions of the electricity distribution licences.

Ofgem final determination on the Shetland enduring solution re-opener application. Determines allowed expenditure on the long-term transmission solution to connect Shetland to the GB system.

Ofgem consults on NESO's request to competitively tender a sub-component of project WCN2 (a new circuit between South West Scotland and North West England) through onshore early competition. The first GB project to enter the onshore competitive tender regime for a Competitively Appointed Transmission Owner (CATO).

Ofgem consultation on changes to the financial parameters of the cap-and-floor regime for Window 3 of electricity interconnector applications. Window 3 is the next round of cap-and-floor interconnector approvals.

Ofgem DCC Review Phase 2 decision on Centralised Registration Service arrangements. Companion to the Governance and Allowed Revenue Phase 2 conclusions. CRS is the proposed central database of meter and customer registration data.

Ofgem consults on how it will select Code Managers under the Energy Act 2023 framework. Code Managers are the new licensed bodies that will run the designated codes, replacing the existing administrator arrangements.

Ofgem statutory consultation on modifying the special conditions of the gas transporter licence.

Ofgem notice: AGR Networks Limited applies for an electricity distribution licence. Routine administrative notice.

Ofgem consultation on Early Construction Funding for eight SHET electricity transmission projects under the ASTI re-opener. Decision (issued later) approved SHET's full ECF request, maintaining the minded-to position.

Ofgem consults on amendments to the Electricity System Operator Licence, Transmission Licence and Distribution Licence to support implementation of NESO's TMO4+ Connections Reform target model.

Ofgem consultation on proposed changes to the electricity distribution licence.

Ofgem directs an extended timeline for the Long Term Development Statement (LTDS) deliverables, granting a one-year extension to stages 1.3, 2 and 3 of the Form of LTDS and to the Capacity Heatmap publication.

Ofgem consults on funding transmission owners to book supply-chain capacity (cables, transformers, HVDC converters) before final certainty on project need, to compress delivery timelines for the ASTI build-out. Consumers carry the cost of the optionality upfront, with the regulator setting eligibility criteria and claw-back arrangements if commitments do not convert into delivered assets.

Ofgem decision on the Initial Project Assessment of the Window 3 Interconnectors. Determines which projects pass the initial filter for the cap-and-floor regime.

Ofgem Initial Project Assessment decision on the Offshore Hybrid Asset (OHA) Pilot Projects. OHAs combine interconnector capacity with offshore wind generation in a single asset (the predecessor to MPIs).

Ofgem consultation on the tax clawback review. The tax clawback mechanism returns tax-related benefits accruing to regulated network companies (e.g. from corporation tax rate changes) to consumers.

Ofgem proposed changes to eligibility criteria for Vulnerability and Carbon Monoxide Allowance (VCMA) projects.

NESO formalises a Demand Control Rotation Protocol allowing rolling blackouts for 3-24 hours during supply shortfalls, modifying Grid Code OC6. The modification affects Distribution Network Operators, NESO, and consumers, with cross-code impacts on the Distribution Code. Panel recommendation has been deferred to address Load Lock definition issues with the Energy Network Association.

Ofgem decision on NESO's performance incentives framework for the BP3 period. Confirms the metrics and incentive structures by which NESO's performance will be measured during the transitional Business Plan 3 phase from 1 October 2024.

Ofgem consultation on the Post Construction Review of the Viking Link interconnector to Denmark. Sets long-term cap-and-floor allowed revenue based on construction cost confirmation.

Joint DESNZ/Ofgem consultation on consumer protection requirements that heat network operators and suppliers must comply with under the new regulatory framework. 153 responses received including consumer advocates, suppliers, metering organisations, local authorities, and leaseholders.

Ofgem consultation on qualifying criteria for Clearly Identifiable Over-Delivery and Clearly Identifiable Under-Delivery under the NARM Funding Adjustment and Penalty Mechanism.

CMP445 proposes to pro-rate first-year TNUoS charges for generators from their charging date rather than charging the full annual amount upfront. The modification was denied urgent treatment by the Authority in December 2024 and is proceeding through standard governance, with workgroup consultation closing 22 August 2025. The CUSC Panel placed this high on their prioritisation stack in March 2025.

Ofgem framework consultation for the next electricity distribution price control (RIIO-ED3), starting 1 April 2028. The Framework decision followed; this consultation seeks views on the high-level shape of the next ED price control.

Ofgem consents to the transfer of a Gas Transporter licence to Stark Infra-Gas Limited following the August 2024 proposed-transfer notice.

Ofgem consultation on proposed amendments to balancing terms and conditions related to the Quick Reserve service. Sister to the July 2025 Quick Reserve Phase consultation.

Ofgem consultation on revisions to balancing terms and conditions for dynamic response services. Dynamic response is the fast-acting frequency-response service NESO procures from generators and battery storage.

DESNZ proposes reforms to Scotland's electricity infrastructure consenting under the Electricity Act 1989, targeting projects over 50MW onshore and 1MW offshore within 12 nautical miles. The consultation seeks to modernise consent processes and strengthen community involvement requirements. Both UK and Scottish governments agree that removing inefficiencies from the 1989 Act is the primary route to accelerating deployment for Clean Power 2030.

Ofgem's economic evaluation strategy. Sets out how Ofgem evaluates the economic impact of its regulatory decisions.

Ofgem consultation on the onshore electricity transmission Early Competition commercial framework. Sets out the commercial terms under which CATOs will design, finance, build and operate transmission assets.

Ofgem publishes a minded-to position on E.ON Next's Last Resort Supply Payment claim for 2024, following its appointment as Supplier of Last Resort for prior supplier failures.

Ofgem decides on the definition of Energy System Data within the Data Best Practice (DBP) guidance. Sets the boundary of what data falls within DBP obligations.

Ofgem statutory consultation on proposed modifications to the Security and Quality of Supply Standards (SQSS) code as part of routine code maintenance.

Ofgem Strategic Innovation Fund Round 3 Alpha Funding decision. Confirms which SIF Round 3 projects receive Alpha-stage funding.

Ofgem publishes minded-to positions on Last Resort Supply Payment claims for 2024. Predecessor to the December 2024 final decisions.

Ofgem statutory consultation and conclusions on the review of gas transporters' traditional metering obligations. Predecessor to the December 2025 decision to end the licence obligations on 31 December 2025.

CMP442 allows generators to fix their TNUoS charges against NESO's forecasted tariffs, converting variable transmission charges into predictable costs. The modification follows standard governance through workgroup process, with first workgroup meeting planned for 16 December 2024. CUSC Panel initially prioritised this as high but downgraded to medium priority in February 2025 following Ofgem's transmission charging modification prioritisation guidance.

Ofgem consultation on further detailed regime parameters for the Offshore Hybrid Asset pilot scheme. Predecessor to the April 2025 decision.

Ofgem decides on the continuation of the Smart Meter Communication Licence and the rate of Shared Cost Allocation for the period to licence expiry in 2027.

DESNZ/Ofgem consult on the draft Electricity (Early-Model Competitive Tenders for Onshore Transmission Licences) Regulations 2024. These Regulations are the statutory underpinning for the CATO (Competitively Appointed Transmission Owner) regime.

Ofgem statutory consultation on a Supplier of Last Resort (SoLR) Levy Offset mechanism. SoLR Levy Offset adjusts how the costs of SoLR appointments flow through to consumers via network charges.

Ofgem launched a consultation on strengthening ring fence rules that protect network companies from financial risks of their parent groups, with responses due 11 November 2024. The review targets complex corporate structures where private equity owners use intermediate companies to raise debt that could drain the regulated entity. Three options range from maintaining current arrangements to requiring reserve funds and prohibiting risky activities like whole business securitisations.

Decision Notice to establish the National Energy System Operator (NESO). Formally creates NESO as the GB Independent System Operator and Planner under the Energy Act 2023 framework.

Ofgem decides on Associated Documents under the proposed NESO ESO and GSP licences. Associated Documents are subject to Secretary of State decision; this publication sets out Ofgem's recommendations.

NESO has migrated the Demand Flexibility Service auction results to a new data portal location, with the previous page retained for historical data only. No change to the DFS mechanism, procurement volumes, or clearing prices — this is a hosting move.

Ofgem Draft Determinations on the 2024 RIIO-2 re-opener applications across Electricity Transmission, Electricity Distribution and Gas Distribution. Companion to the December 2024 Final Determinations.

Ofgem decides on funding for National Grid's consequential costs from the separation of the Electricity System Operator (the move to NESO).

Ofgem mid-scheme decision on the Electricity System Operator's BP2 performance. Made before the NESO transition; assesses National Grid ESO's performance under the Business Plan 2 framework.

Ofgem direction issued under Condition F10.5 of the Electricity System Operator Licence.

Joint Ofgem and DESNZ response to the May 2024 statutory consultation on modifications to industry codes for establishing the Independent System Operator and Planner (ISOP), i.e., NESO. Sets out how the response shaped the final code modification package.

Ofgem and DESNZ publish their joint response to the statutory consultation on the ESO and GSP licences that NESO will hold. The response confirms the final shape of the NESO licence framework, including modifications to existing transmission, distribution and gas codes.

Ofgem decision on Bacton Terminal Site Re-development. Bacton is the largest gas terminal in the GB system, processing imports from Norway and Belgium and serving the south of England.

Ofgem issues a Re-opener Direction for the St Fergus and Wormington Compressor Site under National Gas Transmission's RIIO-T2 licence.

Ofgem proposes reducing domestic standing charges by £20-£100 annually by moving supplier operating costs to unit rates, while exploring tariff diversification options. The consultation seeks views on rebalancing the £135 annual operating cost allocation between fixed daily charges and consumption-based rates. Responses close September 20, with potential implementation April 2025.

Ofgem decision on implementation of energy code reform. Follows the earlier consultations on code reform implementation.

Ofgem consults on NESO's performance incentives framework for the RIIO-2 Business Plan 3 (BP3) period. Sets out the metrics and incentive structures by which NESO's performance will be measured and rewarded.

Ofgem consultation on NESO Business Plan Guidance (August 2024 instance). Predecessor to the May 2025 consultation.

Ofgem statutory consultation on proposed electricity transmission licence modifications for the Accelerated Strategic Transmission Investment (ASTI) framework.

Ofgem decision on a derogation request from National Gas Transmission in relation to its System Management Principles Statement.

CUSC modification CMP440 removes the zero price floor from demand TNUoS locational tariffs, reintroducing negative prices as investment signals. Negative tariffs apply over extended consumption measurement periods to prevent gaming. Code Administration Consultation runs 9 February to 3 March 2026.

Ofgem publishes its decision on draft guidance for the Future Energy Pathways (FEP) that NESO must produce. FEP is the scenario-modelling framework that feeds into network planning.

Ofgem decision on Early Construction Funding for the North London Hackney Waltham Cross Upgrade Project (HWUP) and corresponding transmission licence modifications.

Ofgem consultation on Early Construction Funding and licence modification for the North West Wales transmission upgrade (NOA codes PTC1 and PTNO).

Ofgem finalises guidance requiring NESO to produce strategic 'Future Energy Pathways' instead of illustrative scenarios, with pathways showing what must happen to meet net zero by 2050. The guidance mandates whole-system modelling including gas constraints, network limitations in the short term, and granular regional data. NESO must publish major pathways every three years to inform the Centralised Strategic Network Plan, with methodology subject to Ofgem approval.

Ofgem consultation on a Consumer Consent Solution for sharing customer data across the energy system. Defines how consumers grant and withdraw consent for their data to flow between regulated and unregulated parties.

Ofgem notice under section 8AA(9) of the Gas Act 1986 of the proposed transfer of a Gas Transporter licence from Squire Energy Limited to Stark Infra-Gas Limited.

Ofgem review of Gas Transporter traditional metering licence conditions. Predecessor to the September 2024 statutory consultation and December 2025 final decision.

Ofgem decision on modifications to the ESO Regulatory Instructions and Guidance and Regulatory Reporting framework. Companion to the May 2024 notice.

Ofgem initial policy consultation on a proposed Opex Escalator (OE) Review Mechanism. Tests how operational expenditure should be indexed and reviewed within price controls.

Ofgem consults on the proposed regulatory funding and approval framework for the onshore transitional Centralised Strategic Network Plan (tCSNP). Sets out how Ofgem will assess and fund the work feeding into the first tCSNP.

Ofgem consults on the proposed policy framework for the Regional Energy Strategic Plan (RESP), following the November 2023 decision to introduce a regional strategic planning function delivered by NESO.

Ofgem publishes the first End of Period Assessment (EPA) for the Nemo Link electricity interconnector to Belgium. EPA assesses interconnector performance against the cap-and-floor regime at the end of each regulatory period.