No.25 of 650 · approved, not built MP: Mr Gregory Campbell (Democratic Unionist Party) Northern Ireland

East Londonderry

East Londonderry has 176 MW of clean power (all onshore wind) approved and still not built: enough to supply a year's electricity to 154,000 homes. When the wires are too full to carry the power, Britain pays wind farms to switch off instead. No wind farm here is paid that way — almost all of it goes to wind farms in Scotland. Northern Ireland is on the all-Ireland grid, so Britain's grid bottlenecks do not reach bills here in the same way. There is also 255 MW of wind running here on the local network. If that gets switched off, no national record shows it.

Not visible
here
255 MW of wind is running in this constituency, but it sits on the local network rather than the national grid — so if it is paid to switch off, no national record shows it. That is why this seat has no figure here: not because nothing happens, but because nobody publishes it. The £ figure for this seat is a floor, not a zero.
176 MW
of clean power — all onshore wind — approved and still not built, enough to supply a year's electricity to 154,000 homes — 4 times every household in this constituency. Approved at least two years ago; waiting on the grid, not on planning. That is 0.7× the renewable capacity actually running here.
13 projects · planning database (REPD), July 2026 · how we worked this out
Different
grid
Northern Ireland is part of the all-Ireland Single Electricity Market, not the GB grid, so the GB grid-gap bill does not apply here.

The waiting list

6 of 13 waiting projects · years since approval
Ballyhanedin Wind Farm 24 MW
9.3 YRS
Dunmore Wind Farm - extension 24 MW
8.1 YRS
Evishagaran Wind Farm 47 MW
7.3 YRS
Barr Cregg Wind Farm 13 MW
7.0 YRS
Dunbeg South Wind Farm 30 MW
5.6 YRS
Rigged Hill Wind Farm (Repowering) 28 MW
3.8 YRS

Every approved, unbuilt project

approved 24+ months ago, still not generating · planning database, July 2026
SiteTechnologyEnough forCapacityApprovedWaiting
Evishagaran Wind FarmWind Onshore41,000 homes46.8 MW2019-047.3 yrs
Dunbeg South Wind FarmWind Onshore26,000 homes29.7 MW2020-125.6 yrs
Rigged Hill Wind Farm (Repowering)Wind Onshore24,000 homes28.0 MW2022-103.8 yrs
Dunmore Wind Farm - extensionWind Onshore21,000 homes24.0 MW2018-068.1 yrs
Ballyhanedin Wind FarmWind Onshore21,000 homes24.0 MW2017-049.3 yrs
Barr Cregg Wind FarmWind Onshore11,000 homes12.6 MW2019-087.0 yrs
Dunbeg ExtensionWind Onshore7,900 homes9.0 MW2017-049.3 yrs
Slaghtmanus RoadWind Onshore300 homes0.3 MW2020-036.4 yrs
Mullan RoadWind Onshore300 homes0.3 MW2021-065.1 yrs
Terrydoo Road 1Wind Onshore300 homes0.3 MW2022-113.7 yrs
Terrydoo Road 2Wind Onshore300 homes0.3 MW2022-113.7 yrs
Curragh RoadWind Onshore300 homes0.3 MW2022-034.4 yrs
Windyhill RoadWind Onshore200 homes0.2 MW2020-115.7 yrs

Plus 3 more approved within the last two years.

Batteries

projects of 10 MW and above · planning database, July 2026 · what batteries do →
SiteSizeStatusWhile discharging
Power Generation in Development in Claudy75 MWcould supply ≈263,000 homes

What this page does not show

Smaller wind farms on the local grid are also switched off; national data does not show it, so the £ figure here is a floor, not a zero. Offshore wind is counted nationally, never per seat. The planning database can run a quarter behind reality.

Electricity does not travel from a particular project to particular houses. Everything generated goes into the national grid and everyone draws from that shared pool, so "enough for X homes" is a way of sizing the electricity — not a claim that these homes would be powered by this site. Battery storage is counted separately from generation: it moves power in time rather than making it.

Planning statuses come from the government's planning database (REPD), which records what was decided and when, but not why. Where a project was refused we say so and name the authority; for the reasons, look up the planning reference on that council's own register. How to check any figure on this page →

Read the full method, including everything we cannot see →

What has Mr Gregory Campbell said about the grid in Parliament? Search Hansard →

See the full league table Data (JSON)