No.55 of 650 · approved, not built MP: Calum Miller (Liberal Democrat) England

Bicester and Woodstock

Bicester and Woodstock has 112 MW of clean power (all solar) approved and still not built: enough to supply a year's electricity to 41,000 homes. Britain's grid bottlenecks still add to bills here: about £92 a year per household, £3.8m across the constituency's 41,359 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

112 MW

of clean power — all solar — approved and still not built, enough to supply a year's electricity to 41,000 homes — about as many homes as this constituency has. Approved at least two years ago; waiting on the grid, not on planning. That is 1.4× the renewable capacity actually running here.

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

£3.8m

is what the grid gap costs this constituency's 41,359 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

3 of 17 waiting projects · years since approval

Aurora Solar Farm 32 MW

6.5 YRS

Ray Valley Solar Farm 19 MW

5.7 YRS

Tar Solar Farm 50 MW

3.1 YRS

Every approved, unbuilt project

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

Site	Technology	Enough for	Capacity	Approved	Waiting
Tar Solar FarmTar Farm, Tar Road, Stanton, Witney	Solar Photovoltaics	18,000 homes	49.9 MW	2023-06	3.1 yrs
Aurora Solar FarmTwelve Acre Farm, Chilbridge Road, Eynsham, Witney	Solar Photovoltaics	12,000 homes	32.0 MW	2020-02	6.5 yrs
Ray Valley Solar FarmOs Parcel 6086 Adjacent, Ploughley Road, Railway Line, Arncott, Bicester	Solar Photovoltaics	6,900 homes	19.0 MW	2020-12	5.7 yrs
Blenheim Net Zero EstateLand Between Woodstock Sewage, Banbury Road, B4027, Road Through Blenheim Park, Woodstock, Oxfordshire	Solar Photovoltaics	1,800 homes	5.0 MW	2021-01	5.6 yrs
Essentra Components, Langford Lane - Solar PanelsEssentra Components, Langford Lane, Kidlington	Solar Photovoltaics	400 homes	1.2 MW	2022-10	3.8 yrs
Essentra Components, Langford Locks - Solar PanelsEssentra Components, Langford Locks, Kidlington	Solar Photovoltaics	400 homes	1.0 MW	2024-06	2.2 yrs
British Bakels, Granville Way - Solar PanelsBritish Bakels Limited British Bakels Granville Way	Solar Photovoltaics	300 homes	0.8 MW	2022-11	3.7 yrs
Bicester Avenue Garden Centre, Oxford Road - Solar PanelsBicester Avenue Garden Centre Oxford Road Bicester	Solar Photovoltaics	200 homes	0.6 MW	2022-10	3.8 yrs
Tesco Superstore BicesterTesco Superstore 4480, Lakeview Drive, Bicester Business Park, Bicester, Oxfordshire	Solar Photovoltaics	200 homes	0.6 MW	2019-05	7.2 yrs
HM Prison Bullingdon - Photovoltaic PanelsHm Prison Bullingdon Hm Prison Bullingdon Patrick Haugh Road Upper Arncott OX25 1PZ	Solar Photovoltaics	200 homes	0.5 MW	2021-06	5.2 yrs
Brita Water Filter Systems Limited, Granville Way - Solar panelsBrita House, Granville Way, Bicester	Solar Photovoltaics	100 homes	0.3 MW	2023-11	2.7 yrs
Bicester Park, Charbridge Lane - Solar PanelsBicester Park, Charbridge Lane, Bicester	Solar Photovoltaics	100 homes	0.3 MW	2023-03	3.3 yrs
David Lloyd Clubs, Wendlebury Road - Solar PanelsDavid Lloyd Clubs Wendlebury Road	Solar Photovoltaics	100 homes	0.3 MW	2023-09	2.9 yrs
H M Prison Leyhill, Tortworth - Solar Photovoltaic PV PanelsH M Prison Leyhill Tortworth Road Tortworth, Wotton under Edge	Solar Photovoltaics	100 homes	0.2 MW	2022-06	4.1 yrs
Langford Lane - Solar PV SystemInchcape House, Inchcape Mercedes Benz And Toyota Langford Lane Kidlington	Solar Photovoltaics	100 homes	0.2 MW	2022-01	4.5 yrs
Solid State Logic, Spring Hill Road - Solar PanelsSolid State Logic, 25 Spring Hill Road, Begbroke, Kidlington	Solar Photovoltaics	100 homes	0.2 MW	2022-10	3.8 yrs
Moto Hospitality, Stoke Lyne - Solar panelsCherwell Valley Services Junction 10 M40, Moto Hospitality Limited, Part Of A43 Through Stoke Lyne Parish, Stoke Lyne, Bicester	Solar Photovoltaics	100 homes	0.2 MW	2024-04	2.3 yrs

Plus 5 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
Woodstock Road, Yarnton - Battery Energy Storage System	52 MW	approved, not built 2025	could supply ≈182,000 homes
Bicester Road, Launton - Battery Energy Storage	40 MW	approved, not built 2024	could supply ≈140,000 homes
Tar Solar Farm	40 MW	approved, not built 2025	could supply ≈140,000 homes
Aurora Solar Farm	18 MW	being built 2021	could supply ≈63,000 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 Calum Miller said about the grid in Parliament? Search Hansard →

See the full league table Data (JSON)