Graham Deans, the National Trust’s assistant director of operations, London and South-East, said: “Climate change poses the biggest threat to the places we care for and we believe strongly in the need to grow renewable energy and reduce the use of fossil fuels. We also believe that delivering these projects with respect for the natural and historic setting is essential.
“The National Trust holds a restrictive covenant over 3,900 acres of land in the Hambleden Valley. The purpose of the covenant is to protect and preserve the historic architecture and rural integrity of the area.
“Every planning application is individually assessed to explore whether it would have an adverse impact on the covenanted land and whether this could be mitigated.
“In the case of the proposed hydroelectric scheme at Hambleden lock, we believe the intervention and scale of the proposed structure would have a detrimental impact on the landscape.”