Landmark London

Could British Museum go solar?

Wrap the estimate around the British Museum and you get roughly 2.5 MW of theoretical rooftop solar — about 6,200 panels over nearly 20,000 sq m of roof surrounding Foster's glazed Great Court, or 2.1–2.6 million kWh a year. Britain's most-visited museum is Grade I listed, so treat these as measured potential rather than anything on a drawing board.

The British Museum from the air, its broad slate roofs framing the glass geometry of the Great Court canopy in Bloomsbury, London.
Roof capacity
2.5 MWp
~6,177 panels at full fit
Annual generation
2.1 GWh–2.6 GWh
across the whole roof
Could power
~869
average UK homes
CO₂ saved
~1,124 t
per year, at full capacity

Roof area read from above: ~19,790 m².Imagery dated 2024-08-11.

Full methodology, assumptions and cross-checks: how we measure. Includes solar data from Google.

Morning sun on the rooftop solar panels of a red-brick UK semi-detached home

That was someone else's roof.

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