Robert Llewellyn's quest to spur a green energy revolution in his village

Actor's efforts to persuade Temple Guiting to generate its own electricity captured in BBC4's Great Village Green Crusade

Robert Llewellyn is not a typical eco-activist. "Oh, I'm absolutely un-green," says the actor and TV presenter. "I'm as un-green as a corporate exec. I fly a lot. Though I have hugged a tree. Actually, I've lent against one while I was having a wee in the woods, I'm not sure if that counts?"

You don't need to wear an environmental hairshirt, however, to believe it's possible to live in a different, more sustainable way. For the actor, who presented Scrapheap Challenge on Channel 4 and is best known for playing Kryten on BBC2's Red Dwarf, that belief stemmed from a longstanding passion for new technologies, particularly renewable energy.