The Sutton Bingham water treatment works has been fitted with solar panels to help power the water treatment process, the company said.
The installation follows a recent £13 million upgrade of the facility which was required to ensure the water treatment process continued to meet legislation enforced by the Drinking Water Inspectorate.
Wessex Water’s energy generation analyst Julia Clark said: “Sutton Bingham is an ideal site for installing solar PV panels as there’s currently a high demand for power during daylight hours which we can partially self-supply in a sustainable way.
“The roof is south facing with no obstructions allowing us to generate the maximum level of electricity without having an impact on the local surroundings.”