[NeilBlanchard]

Originally Posted by All Darc

Batteries need energy density for vehicles, even batteries for non electric cars.

Uhn, what if space and weight of batterires wasn't a problem, like for home ?

Why not try to engineer a battery, rechargeable, with very affordable price for high storage capability, using something like chemicals solutions in tanks, like water thanks or small plastic composite pools?
If there is a chemical combination, affordable for recharge batteires, able to recicle, able to use in non xspensive tanks. Periodically the tanks content would be removed for recicled, avoiding polution of suage.

This is already happening. Grid storage batteries can be be much cheaper and last much longer, because they don't need to be small and energy dense.