No.129 of 650 · approved, not built MP: Alan Gemmell (Labour) Scotland

Central Ayrshire

Central Ayrshire has 51 MW of clean power (almost all solar) approved and still not built: enough to supply a year's electricity to 20,000 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. That cost is shared across every bill in Britain, so households here pay for it too: about £92 a year per household, £3.8m across the constituency's 41,117 homes.

Not visible
here
10 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.
51 MW
of clean power — almost all solar — approved and still not built, enough to supply a year's electricity to 20,000 homes. Approved at least two years ago; waiting on the grid, not on planning. That is 5.1× the renewable capacity actually running here.
11 projects · 48 MW solar, 3 MW onshore wind · planning database (REPD), July 2026 · how we worked this out
£3.8m
is what the grid gap costs this constituency's 41,117 households in a year between them — £92 each, about 51 days of one home's electricity.
The £92 per household is a national figure — identical in every GB seat. Only the seat total varies, with the number of households · NESO · how we worked this out

The waiting list

6 of 11 waiting projects · years since approval
Shewalton Road 3 MW
7.3 YRS
Glaxosmithkline Shewalton Road 20 MW
7.1 YRS
Ardagh Glass Limited - Solar Panels 1 MW
5.0 YRS
Symington Place, Riverside Business Park - Solar Panels 0.2 MW
3.4 YRS
Shewalton Landfill Solar Farm 5 MW
3.1 YRS
Merck Kgaa, Second Avenue - Solar Panels 0.2 MW
3.1 YRS

Every approved, unbuilt project

approved 24+ months ago, still not generating · planning database, July 2026
SiteTechnologyEnough forCapacityApprovedWaiting
Glaxosmithkline Shewalton RoadSolar Photovoltaics7,200 homes19.9 MW2019-067.1 yrs
Wee Minnemoer, Millport - Solar Farm & Battery StorageSolar Photovoltaics6,900 homes19.0 MW2024-022.5 yrs
Shewalton Landfill Solar FarmSolar Photovoltaics1,800 homes5.0 MW2023-063.1 yrs
Shewalton RoadWind Onshore2,600 homes3.0 MW2019-057.3 yrs
Meadowhead Sewage Treatment Plant, Meadowhead Road - Solar ArraySolar Photovoltaics600 homes1.6 MW2024-062.2 yrs
Ardagh Glass Limited - Solar PanelsSolar Photovoltaics400 homes1.0 MW2021-085.0 yrs
Sainsburys Stores Limited, Ayr Road - Solar PanelsSolar Photovoltaics200 homes0.4 MW2023-092.9 yrs
Gailes Pumping Station, Gailes - PhotoVoltaic Solar PanelsSolar Photovoltaics100 homes0.3 MW2023-082.9 yrs
Merck Kgaa, Second Avenue - Solar PanelsSolar Photovoltaics100 homes0.2 MW2023-073.1 yrs
Symington Place, Riverside Business Park - Solar PanelsSolar Photovoltaics100 homes0.2 MW2023-023.4 yrs
Enterkine House, Annbank - Solar PanelsSolar Photovoltaics100 homes0.2 MW2023-102.8 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
Camsiscan Farm, Craigie - Battery Energy Storage System350 MWapproved, not built 2024could supply ≈1,226,000 homes
Belston Battery Storage150 MWapproved, not built 2025could supply ≈526,000 homes
Kilwinning Battery Storage100 MWapproved, not built 2025could supply ≈350,000 homes
Holmston Road - Battery Storage Facility50 MWbeing built 2023could supply ≈175,000 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 Alan Gemmell said about the grid in Parliament? Search Hansard →

See the full league table Data (JSON)