Transmission Entry Capacity (TEC) register
Summary
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.
Why it matters
This provides transparency into the transmission connection queue but does not change the underlying allocation mechanism. The Gate classification addition reflects the connections reform process separating firm capacity (Gate 1) from conditional capacity (Gate 2), as such the data will reveal how many projects hold genuinely firm access rights versus those still subject to network reinforcement.
Key facts
- •Gate column added from November 21, 2025
- •Updates follow CUSC paragraphs 6.30.3.2 and 6.35.2
- •Column populated only after agreements countersigned
Timeline
Areas affected
Related programmes
Memo
A list of projects that hold contracts for Transmission Entry Capacity (TEC) with us. These include existing and future connection projects and projects that can be directly connected to the National Electricity Transmission System (NETS), or make use of it. \*\*NOTE:\*\* Following updates to CUSC paragraphs 6.30.3.2 and 6.35.2, the Transmission Entry Capacity (TEC) Registers will include an additional column called “Gate” from 21st November,2025 indicating whether agreements are classified as Gate 1 or Gate 2. This column will be populated once agreements have been countersigned. Until that point, the field will remain blank. Please note: