Land usage is not as big problem as it seems. E.g. wind turbines must be spaced out far from each other but most of the land between them is perfectly usable fo

Land usage is not as big problem as it seems. E.g. wind turbines must be spaced out far from each other but most of the land between them is perfectly usable for farming and animals. As for solar. For an average western country 50m2 of solar panels on top of each household covers all electricity needs of a country. Obviously this power is not delivered exactly when you want it but it is to give some perspective on the space required. And you don’t need massive batteries. Many countries are building pumped hydro to store power. You can use biomass, geothermal power. MMR and SMR reactors with molten salt thermal storage as a way of storing energy.