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Email us →UK and Ireland grid, transmission and connections intelligence.
Thirteen volumes on this sector, every figure traced to a named primary source and carried at a stated verification date. We read the Ofgem determinations, the NESO publications and the transmission owners’ business plans so that you do not have to. Scroll down to see what is in them.
Roughly three to four times what the country can physically build by 2030.
NESO’s Connections Reform Results, published 8 December 2025, reshaped those 738 GW of applications into 283 GW of Gate 2 offers.
Every Gate 2 offer, every DNO licence area, every RIIO-ED3 business-plan window — read from the primary source and dated.
We track it against what actually gets built: EGL1 and EGL2 have already moved from a £3.4bn Ofgem estimate in 2022 to £5.594bn.
Check whether the project you are bidding for holds a Gate 2 offer, and when its window opens.
Track the five Eastern Green Link projects against their approved budgets, contractors and dates, quarter by quarter.
Read the RIIO-ED3 business plans of all five GB DNO groups before the build envelope closes in December 2026.
See which of the 14 licence areas is moving fastest, and which team inside it makes the decision.
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The grid is the network of pylons, cables and substations that carries electricity from power stations and wind farms to your home or site. National Grid, SSEN Transmission and SP Energy Networks own the high-voltage lines on land in Great Britain. Five distribution companies run the local wires across 14 licence areas, and NESO, the National Energy System Operator, plans and runs the whole system.
Expect that network to grow. On 4 December 2025 Ofgem, which decides how much the network companies can spend and charge, approved £10.7 billion of upfront investment for the three owners of the high-voltage lines, covering 2026 to 2031. Set that against the wider pipeline of around £90 billion that Ofgem expects across gas and electricity networks by 2031.
Look at the connection queue to see how much is chasing too little space. Applications to connect passed 700 GW (gigawatts, a measure of how much power can flow at once) by 2025, around four times what NESO said Britain needs in 2030.
So NESO reordered the queue on 8 December 2025 and began telling projects whether they had a firm place. In all, 283 GW of generation and storage got one, with 132 GW lined up for 2030 and the other 151 GW for 2035.
Check whether a project holds one of those places before you plan work around it, because without one it has only a provisional connection date and must qualify again later.
| Figure | What it is | Source and date |
|---|---|---|
| 283 GW | Generation and storage given a firm place in the reordered connection queue | NESO, 8 December 2025 |
| £10.7 billion | Upfront investment Ofgem approved for the three owners of the high-voltage lines, 2026 to 2031 | Ofgem's final decision on network spending, 4 December 2025 |
| £3.4 billion | Ofgem's funding for Eastern Green Link 2, the 2 GW undersea cable from Peterhead to Drax, due to be complete by 2029 | Ofgem, 13 August 2024 |
Respond to Ofgem's consultation on letting developers build their own connections to the high-voltage lines, if you build substations or cable routes yourself. It closes on 13 November 2026, and the decision that follows will set how much of that work clients can buy directly.
Mark December 2026 in your diary. That is when the distribution companies send Ofgem their business plans for 2028 to 2033, the starting point for the work they will carry out from April 2028.
Read the latest grid news in The Wire below, with a link to each source. Open any project on our map to see when we last checked it.
Not sure which of our reports you need? Email book@gridteamai.com and we'll point you to the right one. Figures checked 9 November 2026.
The 13 reports in this sector cover the named UK programmes, the procurement windows, the supplier positioning and the regulatory timelines that decide who builds what, and when.
Watch this sector live on the boards — the Heatmap for its projects, the Data Board for its targets against delivery.
Open any volume and you get consultancy-grade depth: twelve findings, headline figures, the Director’s Six-Check, a glossary of named entities, and twelve named UK suppliers per category. deep report PDF + two-page Crib Sheet + quarterly Currency Addendum.
£295 single volume · from £99 a month, or £995 a year: one named reader — the full multi-volume catalogue, every new volume released during the year, and the 120 Safety Moments. Team £2,495/yr (up to 10 named readers) · Enterprise £4,995/yr (whole company, up to 250 employees) · Corporate £9,995/yr (above 250 employees).
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