The stand-up comic, who is a keen environmentalist, has recently supported We Support Solar, the campaign to stop the government cutting back on financial subsidies for solar photovoltaic systems, has never yet owned a car and is an ambassador for WWF-UK.
He will be making an impression on visitors to Practical Installer with his views on solar, FiTs and climate change from 10.45am, North Hall, Ecobuild, ExCel.