This is true, but in the past it was cheaper to produce electric energy from fossil fuels. I'm talking about overall costs, including economic damage from climate change, the wars that are fought over scarce resources, wars that will be fought over scarcer resources, costs due to mass migration, collapse of ecosystems, etc. If you look at the big picture, it's going to be incredibly, unbelievably expensive to deal with our long term dependence on fossil fuels. But it's all externalized costs that someone else will have to pay in the future, until that someone is us, now.