RES sold its consented Derril Water Solar Farm to a co-operative society in May 2023, and we have continued our relationship with the project through an agreement with the co-operative to manage the construction and operation of the project.

The co-operative is made up of over 9,000 households and small businesses, making this the biggest cooperatively owned solar park in Great Britain.

The co-op was managed by Ripple Energy which entered administration in March 2025, but the project remains fully funded and on track to start generating in the summer of 2025.