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Westmill Solar

With around 1,500 members, Westmill Solar Co-operative is the largest solar co-operative in the UK. Westmill solar is a 4.8MW 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 acres and generates enough electricity to power over 1,600 homes. That’s equivalent to every home in the nearby villages of Watchfield & Shrivenham. Read more

Financial performance

In 2016, the solar plant generated 5,080 megawatt hours of electricity, the equivalent consumption of 1,639 households.

Interest first paid

June 2014

Forecast return


over 24 years

Social performance

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

  • Key social performance indicator


    tonnes of carbon dioxide saved through renewable energy generation in 2016

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.

    For example, Westmill has established a Community Fund and given a donation of 1% of turnover (before shareholder interest payments) to Westmill Sustainable Energy Trust since 2014.

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