Westmill Solar

Westmill Solar Co-operative has established the largest community owned solar park in the UK, a 4.8GWh installation located on the Oxfordshire/Wiltshire border spread across 30 acres. 

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 1,400 homes. That’s equivalent to every home in the nearby villages of Watchfield & Shrivenham. Read more

Financial performance

In 2015, the solar plant generated 5,072 megawatt hours of electricity, 14% more than originally forecast.

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

Governance and people

Who benefits

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

  • Westmill Sustainable Energy Trust (WeSET)

    Westmill Sustainable Energy Trust (WeSET)

    or a similar local educational charity, will receive a donation of 1% of profits (before shareholder interest payments) from 2014.

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