Originally Posted by Innsertnamehere
hydroelectric storage of power is a great way to store mass amounts of energy, it just takes a special kind of terrain. Use the power generated by solar to pump water up to a reservoir, let it flow down into hydroelectric dam to generate the power through generators.
This is being done in a lot of places. It's obviously not the greenest way to do things, but it is fairly efficient, and I guess the key thing is that it can be used to make use of waste power.