How much solar could the UK's biggest roofs hold?

We measured real UK landmarks, stations, schools and supermarkets from above — the same rooftop read we run for homeowners, scaled up. Here's what the country's largest roofs could generate if they went solar.

Landmark Manchester

The Trafford Centre

8.6 MWp
6.1 GWh–7.5 GWh a year · ~2,527 homes
Civic & public Derby

Royal Derby Hospital

6.0 MWp
4.8 GWh–5.9 GWh a year · ~1,982 homes
Civic & public Cardiff

University Hospital of Wales, Cardiff

4.4 MWp
3.7 GWh–4.4 GWh a year · ~1,498 homes
Civic & public Birmingham

Queen Elizabeth Hospital Birmingham

3.8 MWp
3.0 GWh–3.6 GWh a year · ~1,225 homes
Civic & public Romford

Queen's Hospital Romford

3.6 MWp
2.9 GWh–3.6 GWh a year · ~1,206 homes
Supermarket Manchester

Asda Eastlands Supercentre

3.5 MWp
2.4 GWh–3.0 GWh a year · ~1,009 homes
Civic & public Bristol

Southmead Hospital (Brunel Building), Bristol

3.4 MWp
2.7 GWh–3.3 GWh a year · ~1,117 homes
Landmark Manchester

Manchester Piccadilly Station

2.9 MWp
2.0 GWh–2.5 GWh a year · ~840 homes
Civic & public Wakefield

Pinderfields Hospital

2.4 MWp
1.8 GWh–2.2 GWh a year · ~728 homes
Civic & public Stoke-on-Trent

Royal Stoke University Hospital

2.3 MWp
1.6 GWh–2.0 GWh a year · ~671 homes
Supermarket Watford

Tesco Extra Watford

2.0 MWp
1.7 GWh–2.0 GWh a year · ~681 homes
Civic & public Crawley

K2 Crawley Leisure Centre

1.8 MWp
1.5 GWh–1.9 GWh a year · ~635 homes
Supermarket Stockport

Tesco Extra Portwood, Stockport

1.8 MWp
1.2 GWh–1.4 GWh a year · ~481 homes
Supermarket Romford

Tesco Extra Romford Gallows Corner

1.8 MWp
1.5 GWh–1.8 GWh a year · ~618 homes
Civic & public Swindon

Great Western Hospital

1.7 MWp
1.5 GWh–1.8 GWh a year · ~599 homes
Supermarket Basildon

Tesco Extra Basildon Pitsea

1.7 MWp
1.4 GWh–1.7 GWh a year · ~573 homes
Supermarket Bristol

Tesco Extra Brislington

1.7 MWp
1.4 GWh–1.7 GWh a year · ~573 homes
Supermarket Hatfield

Tesco Extra Hatfield

1.6 MWp
1.3 GWh–1.6 GWh a year · ~528 homes
Supermarket Southampton

Tesco Extra Bursledon, Southampton

1.5 MWp
1.3 GWh–1.5 GWh a year · ~519 homes
Supermarket Bristol

Asda Bedminster Superstore

1.5 MWp
1.2 GWh–1.4 GWh a year · ~478 homes
Supermarket Wembley

Asda Wembley Superstore

1.4 MWp
1.2 GWh–1.4 GWh a year · ~475 homes
Supermarket Manchester

Asda Hulme Superstore

1.3 MWp
896 MWh–1.1 GWh a year · ~370 homes
Supermarket Sheffield

Sainsbury's Archer Road Superstore

1.2 MWp
867 MWh–1.1 GWh a year · ~356 homes
School Telford

Thomas Telford School

1.2 MWp
927 MWh–1.1 GWh a year · ~382 homes
Civic & public Manchester

Manchester Town Hall

1.2 MWp
810 MWh–996 MWh a year · ~334 homes
Supermarket New Malden, London

Tesco Extra New Malden

1.1 MWp
890 MWh–1.1 GWh a year · ~367 homes
School Bristol

Bristol Metropolitan Academy

850 kWp
680 MWh–828 MWh a year · ~279 homes
Supermarket Plymouth

Morrisons Outland Road

776 kWp
620 MWh–756 MWh a year · ~255 homes
Civic & public Manchester

Manchester Central Library

464 kWp
329 MWh–402 MWh a year · ~135 homes
School Bilston, Wolverhampton

City of Wolverhampton College (Wellington Road)

254 kWp
180 MWh–220 MWh a year · ~74 homes
School Brighton

Portslade Aldridge Community Academy

224 kWp
203 MWh–248 MWh a year · ~84 homes

Figures are a ballpark of full-roof potential from aerial solar data — not a feasibility study. Real projects account for roof structure, shading, plant and access. Solar data includes data from Google.