Nothing and we don't have to and idk what you're talking about. I literally have an all-electric home and it's perfectly comfortable. Heat pump works great on the hottest and coldest days (outside temp has been as low 2F as high as 99F). And security benefits are also very much in favor of renewables. There is no global supply chain for wind and sun in the hands of a cartel. You have been suckered by a lot of industry propaganda.