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Westmill Solar

Westmill Solar Co-operative is the largest solar co-operative in the UK by revenue. Westmill solar is a 5MW installation on the Oxfordshire/Wiltshire border, on land managed with the natural environment in mind. 

Westmill - What They Do

What they do

The solar park was installed in July 2011 and purchased by the co-operative in October 2012 following a community share offer for £5.8 million. The plant covers 12 hectares and on average generates enough electricity to power over 1,396 homes. Read more

Financial performance

In 2018, the solar plant generated 5,350 megawatt hours of electricity, the equivalent consumption of 1,396 households. Total income was £2.25 million.


Interest first paid

December 2020

Forecast return

5%-6%

Social performance

Westmill Solar generates renewable energy for the benefit of its members and the local community.


  • Key social performance indicator

    1,503

    tonnes of carbon dioxide saved through renewable energy generation in 2018

Governance and people

Who benefits

Westmill Solar brings benefit to its members, the local community and the environment.


  • Westmill Solar supports clean green energy and community.

    Westmill Solar supports clean green energy and community.

    Westmill has established a Community Fund and given a donation to Westmill Sustainable Energy Trust since 2014.

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