Geothermal energy has been used commercially for way over 100 years and of course the Romans were renowned for their hot baths 2000 years ago. But modern geothermal energy is a rather more sophisticated beast. Generating low carbon electricity, heating and cooling from the heat beneath our feet is no longer restricted to geologically blessed areas. Geothermal is indeed hot!
Hosted by Angela Lamont, technology journalist and featuring Ryan Law, Geothermal Engineering Ltd; Marit Brommer, International Geothermal Association; Jon Busby, British Geological Survey plus Nick Cameron and Mehdi Yusifov from bp.