In 1984 he designed a group of superinsulated houses which he went on to help build, live in and monitor for 3 years. Paul has run an energy monitoring company and, for twenty years, managed the energy teams at two major consulting companies. Paul is currently Professor of Energy and Building Performance at the UCL Energy Institute and until recently he was a Low Impact Building consultant to the Technology Strategy Board where he was responsible for the reporting and dissemination for the Retrofit for the Future programme.