Heat Pumps Are the Killer App

Heat pumps produce up to 4 times more heat than could be delivered via hydrogen boiler or furnace for each unit of wind or solar power that you generate. Blending some hydrogen into the natural gas system might buy some time though remember that blending 20% hydrogen by volume reduces CO2 use by just 6%. Sooner or later we're going to have to switch every building either to clean electric heat pumps, biogas or pure green hydrogen.