Comment Re:Renewable+storage = reliable (Score 2) 120
Grid storage is almost diametrically opposed. Energy and power density almost don’t matter at all, if a lithium battery needs to be a ten foot cube, something 100 times less dense mass or power wise is only 46 feet. They can be extremely fragile, and not work under vibration or movement. Low cycle cost lifetime is extremely important. It’s also much more important to have a high efficiency of discharge energy to charge energy. So really lithiums only make sense in niche cases and it’s why pumped hydro is still the vast majority of stored kWh.