Statistics

DESNZ pre-announces the Energy Trends and Prices release covering March to May 2027, the monthly statistical bundle on production, trade, generation, consumption and retail prices for coal, electricity, gas and oil. This is the regular series, not a methodology change or new dataset. Content itself is not yet published; this is the scheduling notice.

DESNZ published the statutory Fuel Mix Disclosure data table for the April 2024 to March 2025 period, the figures suppliers must use on customer bills under supply licence condition 21. The residual fuel mix (the pool allocated to suppliers not buying REGO-backed or sourced electricity) is 74.7% gas, 14.8% coal, 6.3% other, 3.9% nuclear and 0.3% renewables, with a carbon intensity of 919 g/kWh for coal and 382 g/kWh for gas. The headline UK supplied mix including imports is 42.1% renewables, 33.3% gas, 16.2% nuclear and 5.9% coal.

DESNZ updated its fuel poverty statistics collection page for England, which measures fuel poverty via the Low Income Low Energy Efficiency (LILEE) indicator: a household is fuel poor if it occupies a property rated EPC band D or below and falls below the poverty line after notional heating costs. The 2024 dataset and underlying English Housing Survey data will be released on the UK Data Archive later in 2026. This is a routine update to the statistics landing page, not new data or a methodology change.

DESNZ has published modelled sub-regional fuel poverty estimates for England for 2024, broken down to local authority, 2024 parliamentary constituency, and LSOA level using the Low Income Low Energy Efficiency (LILEE) metric. Sub-regional figures are modelled and constrained to match the previously published 2024 regional totals, so this release adds geographic granularity rather than new headline numbers. It is a routine annual statistical update covering England only.

DESNZ published modelled sub-regional fuel poverty estimates for 2024, showing England's overall LILEE fuel poverty rate at 9.9%, ranging from 8.2% in the South East to 12.1% in the West Midlands. The estimates are Official Statistics in Development, constrained to regional totals and explicitly unreliable below Local Authority level. Fuel poverty fell in every region between 2023 and 2024 except London, driven by improved energy efficiency and lower fuel costs.

DESNZ Household Energy Efficiency Headline Release (monthly data). Reports on installations under ECO and other government-funded energy-efficiency schemes.

DESNZ Great British Insulation Scheme release for June 2026. Statistical reporting on GBIS installations and progress.

DESNZ publishes Phase 2 of the National Buildings Database, a premises-level record of every non-domestic building in GB covering construction, geometry, energy use intensity, and EPC ratings as of April 2023. The database covers 2.2 million non-domestic premises across 896 million square metres of floorspace, broken down by 15 activity classes. Data tables include electricity and gas use intensity by sector, heating fuel mix, and regional distribution.

DESNZ will publish the 2026 NEED report on 11 June 2026, analysing household energy consumption from 2005 to 2024 against energy efficiency measures. This is a pre-release announcement; no data is available yet. NEED links meter-level gas and electricity consumption to property characteristics and insulation measures installed under government schemes.

DESNZ pre-announces the January 2026 monthly Renewables Obligation certificate and generation statistics, scheduled for release on 14 May 2026. This is the landing page for the announcement, not the data itself. No new figures are available yet.

DESNZ weekly road fuel price statistics for petrol and diesel. This is a pre-announcement page for data releasing 12 May 2026. No electricity market content.

DESNZ pre-announces the Energy Trends and Prices statistical release covering November 2026 to January 2027, confirmed for publication on 28 January 2027. This is the standard monthly compendium of production, trade, generation, consumption, and retail/wholesale price data across all fuel types. No data is available yet; this is the accredited official statistics announcement page.

DESNZ confirms the next Energy Trends and Energy Prices statistical releases for 27 August 2026. These cover monthly production, trade, generation, consumption across all fuels, plus retail and EU comparative prices. This is the pre-release announcement, not the data itself.

DESNZ confirms the next Energy Trends and Prices statistical release for 30 June 2026, covering monthly production, trade, generation, consumption across all fuels, plus retail and EU comparative price data. This is the pre-release announcement; no data is yet available. The series is the primary official dataset for tracking GB electricity generation mix, gas flows, and retail price movements.

DESNZ will publish Energy Trends and Energy Prices statistical bulletins on 28 May 2026, covering monthly production, trade, generation, and consumption across all fuel types, plus retail and EU comparative price data. This is the pre-release announcement; no data is available yet.

DESNZ publishes the Q1 2026 extract of the Renewable Energy Planning Database, tracking all UK renewable electricity projects above 150kW through planning, construction, operation, and decommissioning. The database is managed by Barbour ABI and covers project-level detail including capacity, technology type, CfD allocation round, planning status, and grid coordinates. It includes an interactive map and links to the equivalent heat network database.

DESNZ publishes its quarterly heat networks pipeline, listing government-supported district and communal heating projects across England and Wales. The database tracks roughly 50 schemes from planning through construction to operation, mostly gas-fired CHP and heat pump systems serving residential and mixed-use developments. This is a heat sector transparency exercise with no direct bearing on electricity market rules, grid connections, or network charging.

DESNZ announces forthcoming statistics on energy efficiency measure installations under the Warm Homes: Local Grant scheme in England. Data release confirmed for 25 June 2026. This is a pre-announcement notice with no substantive content.

DESNZ published updated sub-national gas consumption statistics for 2005-2024, correcting a processing error that had misallocated some Welsh local authority data for 2005-2013. The dataset covers domestic and non-domestic gas consumption at region, local authority, MSOA, and LSOA level. A prior correction in December 2025 fixed non-domestic gas data for one North East area in 2023.

DESNZ published updated subnational gas consumption statistics for 2005-2024, broken down by local authority with domestic and non-domestic meter counts and consumption. The 2026 update corrects a processing error affecting some Welsh local authorities in the 2005-2013 tables. Data is weather-corrected and based on Xoserve meter-level records.

Weekly road fuel price statistics for petrol and diesel. This is a pre-announcement page for data releasing 6 May 2026; no actual price data is included in this publication.

DESNZ will publish statistics on energy efficiency measure installations in social housing under the Social Housing Decarbonisation Fund. This is an announcement of a future statistical release scheduled for 28 May 2026. No data is published yet.

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.

DESNZ published the first annual statistics for the Warm Homes: Local Grant scheme, showing 2,050 measures installed across 1,090 households in England between April 2025 and March 2026. Only 33 of 74 grant recipients submitted data, and DESNZ acknowledges the figures significantly undercount actual delivery. Solar PV was the most common measure (39%), followed by insulation (24%) and low-carbon heating (19%).

DESNZ publishes first substantive statistics for the Warm Homes: Social Housing Fund, reporting 2,800 measures installed across 1,460 households in England to end-March 2026. Only 28 of 138 grant recipients have reported, and DESNZ acknowledges significant under-counting. Solar PV accounts for 42% of measures, insulation 36%, low-carbon heating 13%.

DESNZ publishes monthly statistics on energy efficiency measures installed under the Warm Homes: Social Housing Fund in England, launched March 2025. Data covers measures installed and households reached, reported one month in arrears. Provisional figures subject to revision.

DESNZ publishes monthly statistics on the Warm Homes: Local Grant scheme, tracking energy efficiency measure installations in English homes. The scheme launched in March 2025; data runs one month in arrears and is provisional. This is a routine statistical release for an insulation and retrofit programme.

DESNZ quarterly energy statistics for Dec 2025-Feb 2026 show renewables at 51.8% of major power producer generation, gas down 11% year-on-year to 35.5%, and nuclear down 11% to 11.9%. Primary energy consumption fell 3.3% (2.1% temperature-adjusted). Indigenous production fell 4.5%.

Monthly statistical release on Boiler Upgrade Scheme voucher applications and redemptions through March 2026. Over £560 million paid in grants across four years. Recent policy changes include a £9,000 grant for oil/LPG replacements (from July 2026) and new £2,500 air-to-air heat pump grants (from 28 April 2026).

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 reports 136,900 energy efficiency measures installed in 63,600 social housing properties across three waves of the Social Housing Decarbonisation Fund, with data to end-February 2026. Wave 2.1 delivery is slowing sharply: February 2026 saw 120 households upgraded versus 1,000-2,000 per month through mid-2025. Total grant funding across all waves is approximately £1.04bn.

DESNZ published updated monthly statistics on the Boiler Upgrade Scheme, which provides upfront capital grants (£7,500 for ASHPs, £7,500 for GSHPs) for domestic and small non-domestic heat pump installations. The release covers voucher applications and redemptions since the scheme opened in May 2022. This is a routine statistical update on a demand-side heat decarbonisation programme.

DESNZ publishes monthly statistics on energy efficiency measures installed in social housing under the Social Housing Decarbonisation Fund, covering England only from Wave 1 (March 2022). Data runs two months in arrears and remains provisional.

DESNZ releases monthly statistics on energy efficiency measure installations under the Warm Homes: Social Housing Fund in England. This is a pre-release announcement for data due 30 April 2026. No substantive content is available yet.

DESNZ releases monthly statistics on energy efficiency measure installations under the Warm Homes: Local Grant scheme in England. This is a pre-release announcement for data scheduled for 30 April 2026. No substantive data is available in the announcement itself.

DESNZ will publish Energy Trends and Prices for February 2026 on 30 April 2026 at 09:30. This is the monthly compendium covering production, trade, generation, consumption across all fuels, plus retail and wholesale price indices. This is the pre-release announcement; the data itself is not yet available.

DESNZ will publish monthly Renewables Obligation certificate and generation data for December 2026 on 8 April 2027. This is a pre-announcement of a confirmed statistical release, not the data itself. ROC issuance data tracks the volume and technology mix of generation still operating under the RO scheme.

DESNZ will publish Energy Trends and Prices for February 2027 on 29 April 2027, covering monthly production, trade and consumption across all fuel types plus retail and EU comparative price data. This is a pre-announcement only; no data is yet available. The release is a regular monthly statistical publication.

DESNZ publishes monthly ECO4 installation statistics covering measures delivered through February 2026. ECO4 has been extended by nine months to 31 December 2026, giving suppliers additional time to meet existing targets and remediate non-compliant installations. Data covers measure types, costs, geographic breakdowns, and estimated bill savings.

GBIS closed on 31 March 2026 after installing 135,700 measures in 98,600 households at a total cost of £388m against a £1bn budget. Delivery averaged 5,100 measures per month in recent months, with cavity wall insulation (37%), loft insulation (28%), and heating controls (25%) the main measure types. The scheme cost £25.44 per £1 of annual bill savings.

Weekly road fuel price statistics for petrol and diesel. This covers transport fuel, not electricity. No relevance to electricity markets, grid, or generation.

Quarterly FiT installation report to 31 March 2026. Routine transparency publication showing accredited installations by technology and tariff band.

DESNZ will publish monthly statistics on energy efficiency measure installations under the Social Housing Decarbonisation Fund on 30 April 2026. This is a pre-announcement for an upcoming statistical release covering activity to February 2026. No data is included in the announcement itself.

DESNZ will publish March 2026 statistics for the Boiler Upgrade Scheme on 30 April 2026, tracking uptake of air source heat pumps, ground source heat pumps, and biomass boilers. This is a pre-release announcement — no data is yet available.

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.

DESNZ will publish updated installation statistics for the Great British Insulation Scheme on 23 April 2026. This is a pre-announcement page with no data content — the release itself is confirmed for 9:30am on that date.

DESNZ will publish updated monthly statistics on ECO and Green Deal installations on 23 April 2026. This is a pre-announcement page with no data content — the release itself has not yet been published.

Weekly road fuel price statistics for petrol and diesel. This is a transport fuel data release with no bearing on electricity markets, grid operations, or generation.

HM Treasury's monthly compilation of independent GDP and inflation forecasts for the UK economy. Contains no energy-specific data or policy. Published by DESNZ only as a cross-government statistics obligation.

DESNZ pre-announces a routine weekly release of road fuel sales, deliveries and stock levels at sampled UK filling stations, covering data through 28 June 2026. It is an official statistics in development series on petrol and diesel retail, not electricity.

DESNZ has updated the UK ETS free allocation table following Activity Level Change adjustments, with the 2021-2025 allocation period extended to cover 2026. The table sets installation-level free allowances for energy-intensive industry and, notably, some power-sector CHP and gas compressor stations. Several 2026 allocations step up materially (Tate & Lyle to 70,578 from 40,824; Humber Energy to 38,725 from 28,092) while others (CF Fertilisers Billingham) stay flat at 150,426 after earlier cuts.

UKAEA published monthly prompt payment return data for 2025/26, showing invoices paid within 5 and 30 working days. Payment performance held steady at ~87% within 5 days and ~96% within 30 days across the year.

DESNZ document collection page for road fuel and other petroleum product price statistics. Landing page linking to underlying data releases.

DESNZ document collection page for international energy price comparison statistics covering EU15 and international comparisons. Landing page.

DESNZ document collection page for industrial energy price statistics covering fuel prices in the industrial and non-domestic sector. Landing page.

DESNZ document collection for domestic energy price statistics covering average household gas and electricity prices, payment methods, regional breakdowns, and switching data across GB and UK.

HM Treasury's monthly statistical release on UK official holdings of international reserves for March 2026. UK government gross reserves fell $6.4bn to $230.3bn; net reserves fell $7.9bn to $116.9bn, driven by valuation effects. No foreign exchange intervention was undertaken.

NESO's March 2026 monthly energy statistics report GB's generation mix and demand. Wind set a new maximum generation record of 23,880 MW on 25 March, providing 60% of electricity at peak. Wind led the month at 34.8% of generation, gas second at 22.2%, with peak demand of 38,160 MW on 3 March.

Ofgem publishes ECO4 progress data as of March 2026, showing 97.83% of the £224.3m Home Heating Cost Reduction Obligation delivered with nine months remaining. Over 1.03 million measures have been notified across the scheme, with heating controls (504,480), loft insulation (123,178), and solid wall insulation (88,278) the largest categories.

Ofgem's ECO4 progress report shows 1,032,211 measures notified as of March 2026, with suppliers at 97.83% of their £224.3m Home Heating Cost Reduction Obligation target. Heating controls dominate delivery at 504,480 measures (49% of total), followed by loft insulation (123,178) and solid wall insulation (88,278). The scheme runs to 31 December 2026.

Warm Homes: Social Housing Fund statistics pre-announcement.

Warm Homes: Local Grant statistics pre-announcement.

Ofgem's FIT data portal page lists the standard suite of Feed-in Tariff reports: annual, quarterly, deployment caps, installation, and levelisation. This is an index page linking to existing datasets, not a new release. The FIT scheme closed to new applicants in March 2019; these reports track the legacy tail.

Ofgem publishes the quarterly FIT levelisation report detailing total payments made by FIT licensees to accredited generators. This is a routine administrative publication — a landing page for downloading historical levelisation data. No new policy, no rule change.

UK territorial greenhouse gas emissions fell 2% in 2025 to 367 MtCO2e, down 54% from 1990. CO2 made up 78% of the total. Rate of decline is slowing as easy wins (coal closure) are exhausted.

DESNZ publishes Clean Power 2030 tracking metrics showing clean generation share, clean demand share, and emissions intensity. Annual data in GWh and percentage shares.

Energy Trends and Prices statistical release for 2 April 2026. Summary statistics on energy production, trade, generation, consumption, and domestic price indices.

Energy Trends Q4 2025 and full-year 2025. Renewables reached a record 52.5% share of electricity generation (152.5 TWh). Wind hit 30.0% (87.1 TWh) and solar rose 37% to a record 20 TWh. Nuclear fell to a record low — low carbon share barely moved from 64.6% to 64.8%.

Energy Trends UK total energy chapter. Component of March 2026 release.

Energy Trends UK solid fuels chapter. Coal consumption -56%, zero generation in 2025.

Energy Trends UK oil chapter. Primary oil production +2.6%, product demand +0.2%.

Energy Trends UK gas chapter. Production -3.3%, imports +2.3%, demand -0.9%.

Energy Trends UK electricity chapter. Generation -1.9%, exports +38%.

Energy Trends UK weather chapter. Temperature, wind speed, sun hours context for consumption.

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.

Renewables Obligation certificates and generation statistics. Tracks ROC issuance volumes by technology and accredited generating stations.

Weekly road fuel price statistics from DESNZ. Tracks petrol and diesel pump prices. Not electricity-relevant.

Weekly road fuel price statistics from DESNZ. Tracks petrol and diesel pump prices. Not electricity-relevant.

Weekly road fuel price statistics from DESNZ. Tracks petrol and diesel pump prices. Not electricity-relevant.

Weekly road fuel price statistics from DESNZ. Tracks petrol and diesel pump prices. Not electricity-relevant.

Weekly road fuel price statistics from DESNZ. Tracks petrol and diesel pump prices. Not electricity-relevant.

Ofgem sets the RO buy-out price at £69.34/ROC for 2026-27, up 3.4% from £67.06, with the indexation basis switching from RPI to CPI following DESNZ's January 2026 decision. The obligation level drops slightly to 0.472 ROCs/MWh from 0.493. Mutualisation ceilings are £417.7m for England & Wales and £41.8m for Scotland.

HM Treasury published updated GDP deflators based on ONS Quarterly National Accounts to Q4 2024-25, with OBR forecasts to 2030-31. This is a general macroeconomic statistical release used across government for converting nominal to real prices. It contains no energy-specific content.

Weekly road fuel price statistics from DESNZ. Tracks petrol and diesel pump prices. Not electricity-relevant.

Final UK greenhouse gas emissions statistics 1990-2024. Covers all sectors including electricity generation, transport, heating, industry, and agriculture.

Monthly and annual road fuel and petroleum product price statistics. Covers petrol, diesel, and heating oil prices.

Prices of fuels purchased by manufacturing industry, including electricity, gas, and oil products. Shows input energy costs for industrial consumers.

Fuel input prices paid by major power producers for coal, gas, and oil. Tracks the cost of thermal generation inputs over time.

Industrial energy price index series tracking electricity and gas costs for industrial users over time.

Non-domestic gas and electricity price statistics covering SME and large business tariffs. Tracks unit rates and total costs outside the price cap.

International road fuel price comparison data. Benchmarks UK petrol and diesel prices against other countries.

Domestic energy price index series for electricity and gas. Tracks household energy cost trends over time as index numbers.

Annual domestic energy bill statistics showing typical household electricity and gas costs by payment method and consumption level.

Quarterly statistics on domestic energy supplier switching rates. Tracks the number of electricity and gas customers changing supplier.

Quarterly statistics on domestic energy customer numbers by supplier and payment method. Tracks market share distribution.

Index page for the Quarterly Energy Prices statistical release. Links to component datasets covering domestic and non-domestic electricity and gas prices.

Quarterly Energy Prices statistical release covering domestic and non-domestic electricity and gas prices across GB. Includes unit rates, standing charges, and price index trends.

Ofgem's RO annual report for Scheme Year 23 (April 2024–March 2025) shows 101.4 million ROCs issued against a supplier obligation of 119.5 million ROCs, with suppliers presenting 105.9 million ROCs and paying £613.7 million into buy-out and late payment funds. RO-accredited generation from 35.0 GW of capacity produced electricity equivalent to 30.2% of UK supply, rising to 46.6% when combined with FiT and CfD. Two supplier failures (Tomato Energy and Rebel Energy) created a £23.6 million shortfall, though this remained below the mutualisation threshold for the third consecutive year.

Ofgem publishes the 16th annual biomass sustainability dataset under the Renewables Obligation, covering Scheme Year 23 (2024-2025). The dataset reports against sustainability criteria introduced in 2009 for biomass-fuelled generating stations. It accompanies the RO Annual Report's biomass sustainability chapter.

Ofgem published its 63rd quarterly FIT report covering Q4 2025 (October-December), summarising installations, installed capacity, and levelisation for the scheme now in its 16th year. The scheme has been closed to new applicants since April 2019; this is routine monitoring of legacy obligations.

Ofgem reports that 17 million fixed Direct Debit households held an average total credit balance of £3.17 billion across the year ending December 2025, down £113 million year-on-year from £3.28 billion. The average household credit balance fell from £215 to £199 over the same period, though the point-in-time balance at end-December 2025 rose to £212 from £206.

DESNZ quarterly energy price statistics covering domestic and industrial consumers across all major fuels for Q4 2025, with international comparisons. No extracted text available from the announcement page.

DESNZ published a list of oil and gas Environmental Impact Assessment submissions from 2021, showing project statuses including determinations and withdrawals. The data covers offshore developments under the 2020 EIA Regulations with projects from companies including IOG UK, Premier Oil, and TotalEnergies. This is routine administrative reporting of fossil fuel project assessments.

DESNZ announces routine statistics on road fuel sales, deliveries and stock levels at UK filling stations covering January 2020 to March 2026. This is administrative reporting of transport fuel data with no connection to electricity markets or grid infrastructure.

DESNZ launched an interactive map showing clean energy projects supported by government funding since July 2024, including National Wealth Fund and Great British Energy investments. The map displays investment amounts and job figures for featured projects. More projects will be added as they are announced.

DESNZ publishes annual statistics on fuel poverty in England for 2025, including household composition analysis and 2026 projections. This is routine monitoring data tracking the distributional impact of energy costs. The report follows the established Low Income High Costs indicator methodology.

Feed-in Tariff rates increase by 3.4% from 1 April 2026, following the Consumer Price Index adjustment. The FIT scheme closed to new entrants in 2019, so this affects only existing installations receiving generation and export tariff payments. This is an automatic annual adjustment under existing regulations.

DESNZ publishes sub-regional fuel poverty estimates for England in 2024, providing geographical breakdown of households unable to afford adequate energy services. This is routine statistical reporting on the distributional impact of high energy costs across local areas.

Ofgem's January 2026 consumer satisfaction survey shows 81% satisfaction with energy suppliers, unchanged from July-August 2025. Customer service satisfaction remains at an all-time high of 77%. Among customers who fell behind on payments, 28% were not contacted by suppliers, up from 20% in the previous survey.

Monthly statistics released covering household energy efficiency measures delivered under the Energy Company Obligation (ECO) and Green Deal Framework. The data tracks government-mandated insulation and efficiency programmes. No indication of specific metrics or trends in this announcement.

DESNZ published quarterly statistics on smart meter installations by large suppliers for Q1 2026. The release covers installation numbers and total smart/non-smart meter counts at end-March 2026.

DESNZ publishes statistical collection on household energy efficiency programmes including Energy Company Obligation (ECO) and Green Deal measures. The release provides quarterly ECO cost data and annual insulation statistics. Q4 2025 ECO costs will appear in both the detailed annual report on 19 March and regular quarterly statistics on 26 March.

DESNZ published annual statistics on government-funded household energy efficiency schemes through December 2025, covering 4.9 million measures installed in 2.9 million homes since 2013. ECO accounted for 71% of 2025 installations (271,700 measures), while total scheme delivery fell 14% year-on-year to 385,000 measures. ECO costs reached £11.32 billion cumulative, with 2025 delivery costs falling 24% to £1.43 billion.

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.

DESNZ publishes updated levelised cost estimates (LCOE) for electricity generation technologies, with significant upward revisions for offshore wind and gas plants due to supply chain pressures and commodity price increases. Solar and onshore wind costs remain relatively stable. Hurdle rates increase 1-2 percentage points across all technologies, while carbon price assumptions no longer converge to the social cost of carbon, reducing long-term costs for gas generation.

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.

DESNZ publishes monthly statistics covering electricity generation, consumption, and retail prices alongside broader energy production and trade data. The January 2026 data includes electricity market fundamentals, retail price movements, and EU comparative pricing. This is routine statistical publication providing market context rather than announcing policy changes.

DESNZ published quarterly energy statistics for Q4 2025, covering production, consumption and trade across coal, oil, gas, electricity and renewables. The release provides standard statistical data on energy flows during the final quarter of 2025. This is routine statistical reporting with no policy content.

DESNZ releases statistics tracking energy efficiency installations under the Warm Homes: Social Housing Fund in England through February 2026. The data monitors retrofit measures in social housing properties. This is routine statistical reporting on a fuel poverty programme.

DESNZ publishes February 2026 statistics for the Warm Homes: Local Grant scheme, tracking energy efficiency measure installations in English domestic properties. The release provides monitoring data on household insulation and efficiency upgrades delivered through local authority administration.

DESNZ will release data monitoring energy efficiency measure installations in English social housing under the Social Housing Decarbonisation Fund for January 2026. The release tracks progress of the SHDF scheme which provides grants to housing associations and councils for retrofitting social homes. This forms part of routine monitoring of government-funded decarbonisation programmes.

DESNZ announces March 2026 release date for GBIS installation statistics. The Great British Insulation Scheme monitors energy efficiency measures in domestic properties through obligated energy suppliers. This tracks implementation of an existing consumer support programme.

DESNZ publishes quarterly statistics on UK heat pump installations through March 2026. The release tracks deployment numbers against government targets of 600,000 annual installations by 2028. Heat pump adoption affects electricity demand patterns and peak loads but remains primarily a heating sector metric.

DESNZ publishes quarterly data showing UK renewable electricity generation reached 35.5 TWh in Q3 2025, up 7.4% year-on-year, driven by 2.9 GW of new solar capacity and 1.0 GW of offshore wind. Total UK energy production hit a record low at 21.2 million tonnes oil equivalent, down 2.5%, with nuclear generation falling 28% due to maintenance outages. Renewables achieved 54.7% of electricity generation, just below Q2's record.

DESNZ expands heat pump deployment statistics to capture all retrofits in the UK, not just those supported by government schemes. The change aims to track total market deployment rather than only policy-supported installations. Data tables provide quarterly counts of hydronic heat pumps up to 45kW capacity.

DESNZ publishes a triannual Public Attitudes Tracker surveying public awareness and behaviours on energy topics. The survey frequency was reduced from quarterly to triannual from Summer 2023. Data collection methodology changed to address-based online surveying from Autumn 2021.

DESNZ expands its heat pump statistics to include all UK heat pump installations, not just those supported by government schemes. The department shifts from policy-specific deployment tracking to total market coverage for hydronic heat pumps up to 45kW. Statistics remain 'in development' status with methodology still being refined.

DESNZ published its Winter 2025 Public Attitudes Tracker, a triannual survey of 3,283 UK adults covering awareness and attitudes toward energy policies. The survey shows declining concern about climate change (77%, down from 79% in Summer 2025) and declining support for renewable energy (78%, down from 87% in Autumn 2021). Nuclear energy support held steady at 44%, while heat pump installation likelihood among owner-occupiers dropped to 22% for air source and 12% for ground source systems.

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 published monthly cost per kW data for solar PV installations during 2025/26, marking this as 'Official Statistics in Development'. The data covers installation costs by month across the financial year. This provides market intelligence on solar deployment costs as the sector scales.

DESNZ publishes weekly road fuel prices for unleaded petrol and diesel as routine statistics. This covers transport fuel pricing with no connection to electricity markets.

DESNZ publishes lists of companies receiving exemptions from CfD/RO costs (as at March 2026) and compensation for RO/FIT costs (up to 2018). The 2026 exemption list covers 521 companies across manufacturing and processing sectors. The 2018 compensation list covers 23 companies, primarily in energy-intensive industries.

DESNZ publishes weekly retail prices for unleaded petrol and diesel at UK forecourts. This is routine statistical reporting on road fuel costs with no connection to electricity markets or grid infrastructure.

DESNZ published February 2026 statistics on Boiler Upgrade Scheme installations, monitoring uptake of air source heat pumps, ground source heat pumps and biomass boilers. The scheme provides grants for low carbon heating technologies to replace gas boilers in domestic properties.

DESNZ published February 2026 solar PV deployment statistics. This is a routine monthly data release tracking installed solar capacity in the UK. The publication provides market participants with deployment data for commercial and policy analysis.

DESNZ published routine ambient gamma radiation monitoring data from fixed and mobile monitors across the UK, with updated location coordinates following network upgrades in August 2025. The report covers background radiation measurements taken hourly through the Radiological Response and Emergency Management System.

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 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 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.

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.

NESO publishes weekly Capacity Market Register data tracking all applications, successful bidders, and capacity agreements across auctions. The register includes component-level detail and historical changes, updated with one-hour frequency. Four CSV datasets cover current status and change histories for both components and Capacity Market Units.

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.

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

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

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.

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.

NESO publishes 0-14 day ahead wind forecasts for all wind farms providing real-time operational metering data. Forecasts use evaluated operational capacity based on recent actual production levels from SCADA telemetry rather than nameplate capacity. The dataset covers both national and individual wind farm level predictions.

NESO releases historical and forecast profile dates used to convert Cardinal Point forecasts into half-hourly demand forecasts from 2018 to 14 days ahead. Profile dates match forecast dates based on weather, embedded generation, seasonal patterns, and special events. These dates update as weather forecasts improve closer to real time.

NESO publishes daily forecasts of balancing reserve requirements for its 08:15 auction that procures firm positive and negative reserve from BM units for delivery between 23:00 same day and 23:00 next day. The dataset includes both medium-term approximations and detailed daily forecasts refined with wind and solar data, providing half-hourly volume requirements for each service window. Data is overwritten daily with previous entries archived, and all forecasts published after 27 February are live demand forecasts.

NESO Wind Bid-Offer Acceptance (BOA) Volumes data. Operational balancing market data tracking how much wind generation has been curtailed via the balancing mechanism.

NESO publishes the MW-per-hour restriction values it submits to Viking Link's interconnector capacity calculation, capping GB import/export flows on the 1.4 GW GB-Denmark link. Values appear only when NESO imposes a restriction; absence means no NESO-side cap. Final capacity also depends on the Danish TSO and the cable's own capability.

DESNZ publishes routine workforce management data covering payroll staff by grade, headcount numbers, and staff costs. This is administrative reporting with no bearing on energy markets or infrastructure deployment.

NESO publishes daily auction results for balancing services procured through the Enduring Auction Capability platform. The EAC platform now procures response services (Dynamic Containment, Dynamic Moderation, Dynamic Regulation) and reserve services (Balancing Reserve, Quicker Reserve). Historical results remain available through separate portals.

NESO publishes settlement-period data on the availability and utilisation of Stability Pathfinder contracts, the procured service that supplies synchronous inertia and short-circuit level to a grid losing thermal plant. The dataset records availability and dispatch for all contracted units except Grid Forming Batteries, which deliver stability continuously while connected and so receive no control-room instruction. Long-term stability contracts carry no utilisation payment, so the data is published roughly a week after delivery.

DESNZ publishes results for CfD Allocation Round 5, with 95 clean energy projects securing contracts. The government also announces an indicative timeline for AR6, starting in six months, and publishes its response on non-price factors consultation.

NESO data portal page for Static Firm Frequency Response daily auction results and buy orders.

NESO publishes the Net Transfer Capacity values it submits for NemoLink interconnector capacity calculations, showing GB import and export limits in MW per hour. These values restrict maximum flows but final capacity may be lower after combining with French TSO values and physical interconnector capability. Values are only published when NESO applies restrictions.

NESO publishes the IFA2 interconnector Intraday Transfer Limit dataset.

NESO publishes its intraday transfer limits for the IFA interconnector, showing the MW capacity restrictions it submits to interconnector capacity calculation processes per hourly period. These NESO values combine with connected system operator values and physical capability to determine final interconnector capacity. Values are only published when NESO applies restrictions.

NESO publishes hourly Net Transfer Capacity values for North Sea Link interconnector that restrict maximum GB import and export flows. These values feed into interconnector capacity calculations alongside connected system operator inputs and physical capability constraints. Final capacity may be lower than NESO's submitted values.

NESO publishes its Net Transfer Capacity values for ElecLink interconnector, showing the maximum import and export flows NESO allows in MW per hour. These values feed into capacity calculation processes alongside connected system operator values and interconnector capability to determine final available capacity. Values are only published when NESO applies restrictions.

The fourth CfD auction allocated contracts to 93 projects totalling nearly 11GW of capacity, almost double the previous round in 2019. Offshore wind strike prices have fallen 70% since the first auction in 2015. Technologies included offshore wind, onshore wind, solar, and for the first time tidal stream and floating offshore wind.

NESO publishes the 24-month-ahead forecast of constraint costs by boundary on a monthly basis, covering thermal, voltage and stability constraints plus voltage requirements.

NESO publishes 4-day forecasts of Dynamic Containment requirements for frequency response services, using demand, inertia and loss forecasts. The methodology estimates both high and low frequency response volumes needed to secure the largest credible system loss. Actual day-ahead requirements may differ based on real-time optimisation and interconnector flow changes.

NESO publishes 24-month-ahead constraint limits in MW for the main boundaries on the GB transmission system on a weekly basis.

NESO dataset publishing outturn and market-provided inertia estimates for the GB transmission system. Excludes contributions from Stability Pathfinder contracted units, so it understates total system inertia.

NESO publishes constraint breakdown data showing costs and volumes of transmission system actions taken by the ESO. The dataset provides transparency on why specific system actions were taken, with tags that can be retrospectively updated. Data covers transmission network constraints only.

NESO publishes methodology for measuring carbon intensity of balancing actions, comparing emissions from Final Physical Notices versus actual dispatch through Bid Offer Acceptances. The metric tracks how system balancing operations increase or decrease carbon intensity relative to generators' submitted schedules. Data covers dispatchable Balancing Mechanism units but excludes interconnectors and small BMUs.

NESO publishes operational metered wind output data by settlement period for Scotland, England and Wales. The data differs from settlement metering used in wind forecasting metrics due to pre-reconciliation timing. This provides real-time generation visibility for system operation.

NESO publishes 14-day ahead wind forecasts at national and Balancing Mechanism Unit level, extending beyond their day-ahead wind forecasts. The forecasts use evaluated Operational Capacity based on recent actual production levels from SCADA telemetry. The data covers all wind farms contributing to NESO's day-ahead incentive wind forecasts.

NESO Transmission Network Use of System (TNUoS) Tariffs dataset. Published tariffs that generators and demand customers pay for use of the transmission network.

NESO publishes the TEC register showing which projects hold transmission entry capacity contracts to connect to the grid. From November 2025, the register will add a 'Gate' column distinguishing between Gate 1 and Gate 2 agreements under updated CUSC provisions. The register covers existing connections and the pipeline of future projects seeking transmission access.

NESO publishes a register of interconnector projects holding connection contracts, listing active and future projects with their firm Transmission Entry Capacity (TEC). The register includes import/export capacity figures and contractual definitions under CUSC. From November 2025, the register will add a 'Gate' column distinguishing Gate 1 and Gate 2 agreements under Connections Reform.

NESO publishes a register of embedded generation projects in Scotland that are connected or contracted to connect. The register will add a 'Gate' column from 21 November 2025 to distinguish Gate 1 and Gate 2 agreements under the Connections Reform process. Capacity data currently shows aggregated figures across stages and technologies, creating potential duplicates.

NESO publishes data on interconnector trading auctions used to manage grid constraints and energy balancing across six links (IFA1, BritNed, NEMO, IFA2, ElecLink, Viking Link). Trading occurs ad hoc throughout the day with qualified counterparties who hold interconnector capacity and BSC registration. Data includes volumes secured, best price, volume-weighted average price, and clearing price for each requirement.

NESO publishes historic Grid Trade Master Agreement (GTMA) trading data from April 2015, covering trade volumes, prices, and costs. The dataset updates monthly with previous month's data and refreshes daily to capture trades between D-1 06:00 and D 06:00. Post-delivery changes like counterparty defaults may not be retrospectively updated.

NESO data portal page for 2-14 day ahead national electricity demand forecasts, updated twice daily at 09:20 and 14:20.

NESO publishes System Operating Plans (SOPs) — real-time operational plans produced at demand peaks and troughs that show how the system operator will balance electricity supply and demand. The SOPs reveal expected actions in the balancing mechanism, reserve requirements, interconnector flows, and transmission constraints for each cardinal point throughout the day. This data release makes operational decision-making transparent to market participants who can see NESO's anticipated balancing actions hours ahead of real time.

NESO publishes real-time instruction data for non-BM ancillary services including Fast Reserve, STOR, and RDP dispatch through its ASDP system. Data is published continuously throughout the day once service providers confirm instructions. Monthly files are created only when new instructions are dispatched for these MW services.

DESNZ official statistics on average road fuel sales, deliveries and stock levels at sampled GB filling stations. Publication moved to quarterly schedule from 2024 due to data stability.

NESO data portal page for daily Balancing Services Use of System cost data. BSUoS charges recover the cost of day-to-day transmission system operation from generators and suppliers.

NESO data portal page for daily Balancing Services Use of System volume data. Companion to the BSUoS cost data.

NESO data portal page for country-level carbon intensity forecasts for the GB electricity system, measuring CO2 emissions per kilowatt hour consumed.

NESO publishes methodology for its Carbon Intensity API, which forecasts CO2 emissions per kWh up to 48 hours ahead. The forecast uses generation mix data, demand forecasts, and weather inputs to calculate national carbon intensity in gCO2/kWh. This is a methodological document explaining an existing data product, not announcing new market rules or charges.

NESO publishes regional carbon intensity forecasts covering 17 GB regions up to 48 hours ahead, using machine learning to predict demand, generation by fuel type, and power flows between regions. The methodology accounts for transmission losses, interconnector imports, and embedded wind/solar generation within Distribution Network Operator boundaries. Forecasts update every 30 minutes using real-time weather data from the Met Office.

NESO published historical carbon intensity data from January 2009 onwards, measuring CO2 emissions per kilowatt hour of electricity generation. The dataset uses seasonal decomposition to correct for missing or irregular data points and remains subject to ongoing data cleansing.

NESO publishes half-hourly BSUoS charges across three run types (Interim Initial, Settlement Final, Reconciliation Final) with daily updates of actual prices and volume data. A system outage paused billing from 26 April to 27 May 2024, with normal publication resuming 28 May 2024. The data provides visibility into balancing service costs allocated to suppliers and generators.

NESO data portal page for weekly operational planning margin requirement, showing the generation headroom above demand forecast needed to meet reserve requirements for 2-52 weeks ahead.

NESO data portal page for daily operational planning margin requirement, showing generation headroom above demand forecast for 2-13 days ahead.

NESO publishes daily and weekly forecasts of Negative Reserve Active Power Margin (NRAPM), warning when insufficient flexibility exists to balance the system during low demand periods. The forecasts cover 2-14 days ahead daily and 2-52 weeks ahead weekly for both national and Scottish systems. NRAPM warnings indicate risk of Emergency Instructions being issued to generators.

NESO data portal page for daily wind generator availability in MW for 2-14 days ahead.

NESO data portal page for weekly wind generator availability at generator level in MW for 2-52 weeks ahead.

NESO data portal page for day-ahead national electricity demand forecast and historical forecasts.

NESO publishes the 2-day-ahead demand forecast dataset on its data portal.

NESO publishes Balancing Services Adjustment Data (BSAD) covering balancing actions taken outside the standard balancing mechanism, updated twice daily. The dataset tracks actions that affect imbalance settlement but fall outside the Balancing Mechanism's Bid-Offer Acceptances.

NESO publishes the 7-day-ahead demand forecast dataset on its data portal.

NESO publishes aggregated data on balancing actions taken outside the standard balancing mechanism, updated twice daily. The Balancing Services Adjustment Data covers actions submitted to the BSC for settlement purposes. This is routine operational data publication from 2019.

NESO publishes Balancing Services Adjustment Data (BSAD) twice daily, covering balancing actions taken outside the formal balancing mechanism. This data feeds into the Balancing & Settlement Code for imbalance settlement processes. The dataset provides transparency on system operator interventions that sit outside standard market mechanisms.

NESO publishes real-time data on upcoming electricity trades used for system balancing, refreshed every ten minutes. The dataset shows trades scheduled for delivery to meet forecast balancing requirements at minimum cost. Trade details are provisional and subject to confirmation with counterparties.

NESO publishes half-hourly forecasts for embedded wind and solar generation from same-day to 14 days ahead, updated hourly. The dataset covers distributed renewables connected to distribution networks rather than transmission-connected generation. NESO acknowledges missing archived records and is working to restore them.

NESO publishes day-ahead wind forecasts at national and BMU level, plus the historic archive of prior forecasts. The dataset is intended to help market participants balance supply and demand positions.

NESO publishes historic GB system frequency at 1-second resolution, with the statutory obligation to hold frequency at 50 Hz within a 0.5 Hz limit either side. The dataset records actual frequency deviations rather than changing any rule or charge. Files are large enough that NESO advises downloading the CSV and opening it in Notepad++.

NESO's monthly BSUoS forecast publishes a 24-month-ahead projection of balancing services costs, the charge that recovers the cost of operating the system second-by-second (constraint payments, reserve, frequency response, black start). This is a routine recurring data release giving the next month's forecast plus a rolling two-year horizon, explicitly disclaimed as not binding on indicative or actual tariffs. It tells users what NESO expects to charge, not what changes.

NESO releases day-ahead constraint flow data showing actual power flows and thermal limits across transmission boundaries. The data captures network conditions at the time of measurement and includes visual network diagrams showing constraint boundaries and flow directions. Published 5 November 2019, this represents operational transparency rather than market mechanism change.

NESO data portal page for outturn thermal constraint costs across significant constraint boundaries, showing the cost of managing power flows that exceed circuit capacity between regions.

DESNZ publishes annual statements calculating the UK's net carbon account under the Climate Change Act 2008. These statements track emissions against statutory carbon budgets to determine compliance. This is routine administrative reporting of historical emissions data.

HM Treasury GDP deflators used to convert nominal prices to real terms across government. This is a general macroeconomic reference dataset, not an energy-specific publication.

HM Treasury statistical release on UK official holdings of international reserves. This is a monetary/fiscal data series with no connection to energy markets, grid infrastructure, or electricity policy.