The independent prep and senior schools at Westonbirt have recently become more sustainable by switching to a Stroud-based green energy supplier.

Ecotricity, headed up by green power guru Dale Vince, provides electricity generated from the wind and the sun.

The schools, based near Tetbury, celebrated the switch by inviting Ecotricity's principal ecologist Simon Pickering, to talk to pupils about the company and its work to create a greener Britain.

Westonbirt's chief operating officer, Mr. Steve Kenny, said: "Our switch to Ecotricity is an important milestone in our plan to become a more sustainable site. Involving our students in the process and discussing learning outcomes was an important step."

Simon Pickering said: "It was brilliant to visit the school and talk more about what we do as a company to create a Green Britain.

"Switching to green energy is one of the biggest things - and the easiest things - that any organisation can do to cut the emissions that cause climate change."