No.116 of 650 · approved, not built MP: Ian Sollom (Liberal Democrat) England

St Neots and Mid Cambridgeshire

St Neots and Mid Cambridgeshire has 52 MW of clean power (all solar) approved and still not built: enough to supply a year's electricity to 19,000 homes. Britain's grid bottlenecks still add to bills here: about £92 a year per household, £4.0m across the constituency's 43,529 homes.

Not visible
here

No big wind farm on the national grid is mapped to this constituency, so no switch-off payments show here in national data. Smaller wind farms on the local grid can still be paid to switch off — invisibly. The £ figure for this seat is a floor, not a zero.

how we worked this out

52 MW

of clean power — all solar — approved and still not built, enough to supply a year's electricity to 19,000 homes. Approved at least two years ago; waiting on the grid, not on planning. That is 5.1× the renewable capacity actually running here.

7 projects · planning database (REPD), July 2026 · how we worked this out

£4.0m

is what the grid gap costs this constituency's 43,529 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 7 waiting projects · years since approval

Morrisons , Broad Street, Cambourne - Solar Panles 0.5 MW

4.3 YRS

CRM Surgical, 1 Evolution Business Park - Solar Panels 0.8 MW

4.3 YRS

Stargoose Farm - Solar Farm 50 MW

4.3 YRS

Chester Road, Colmworth Business Park - Solar Panles 0.2 MW

3.3 YRS

3-5 Stirling Way, Papworth Everard - Solar PV Panels 0.2 MW

3.3 YRS

Domino House, Trafalgar Way - Solar panels 0.3 MW

2.4 YRS

Every approved, unbuilt project

approved 24+ months ago, still not generating · planning database, July 2026

Site	Technology	Enough for	Capacity	Approved	Waiting
Stargoose Farm - Solar Farm	Solar Photovoltaics	18,000 homes	50.0 MW	2022-04	4.3 yrs
CRM Surgical, 1 Evolution Business Park - Solar Panels	Solar Photovoltaics	300 homes	0.8 MW	2022-04	4.3 yrs
Morrisons , Broad Street, Cambourne - Solar Panles	Solar Photovoltaics	200 homes	0.5 MW	2022-03	4.3 yrs
Domino House, Trafalgar Way - Solar panels	Solar Photovoltaics	100 homes	0.3 MW	2024-03	2.4 yrs
New Road, Impington - Solar panels	Solar Photovoltaics	100 homes	0.3 MW	2024-05	2.2 yrs
Chester Road, Colmworth Business Park - Solar Panles	Solar Photovoltaics	100 homes	0.2 MW	2023-04	3.3 yrs
3-5 Stirling Way, Papworth Everard - Solar PV Panels	Solar Photovoltaics	100 homes	0.2 MW	2023-04	3.3 yrs

Plus 3 more approved within the last two years.

Batteries

projects of 10 MW and above · planning database, July 2026 · what batteries do →

Site	Size	Status	While discharging
Stargoose Farm - Battery Storage	312 MW	approved, not built 2022	could supply ≈1,093,000 homes
Weald Farm, Cambridge Road - Solar Farm & Battery Storage	50 MW	approved, not built 2025	could supply ≈175,000 homes
Falcon Park, Wilsons Road - Solar Farm & Battery Energy Storage	20 MW	in planning	could supply ≈70,000 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 Ian Sollom said about the grid in Parliament? Search Hansard →

See the full league table Data (JSON)