The research group said an installation bonanza over the last three years – when 90% of the capacity was added – has propelled Britain into the solar big league, but the future is less certain.

Solarbuzz expects strong growth to continue until April next year, when policy changes should take the sting out of the large-scale sector.

A new research snapshot from the company says: “The UK government is seeking to shift growth to the large rooftop market.

“However,