Telegraph: Mr Lovins, who wears the owlish countenance of the well-meaning green academic that he is, is a proponent of the "negawatts" philosophy on energy use. Rather than planning how to meet ever-increasing demand by producing yet more megawatts, the chairman and chief scientist of one of America’s leading energy institutes believes that it would be better — through the proper use of technology and innovation — to work out how to cut our hyper-wasteful energy footprint. "It is generally …