The Company's comprehensive offerings include proprietary gravity-based storage, battery storage, and green hydrogen energy storage technologies.
It looks like they used lithium ion batteries for this but I'm not confident in that. I only poked around their website a little, tho. I'm curious what gravity based would look like. Maybe I should poke around more!
Isn't gravity based the thing where the mechanism is, crudely, a rock tied to a rope gets lifted, then the mechanism locks it, and when energy is needed the lock releases, dropping the rock and spinning the turbine?
Takes more energy to lift the rock, but the lock costs almost no energy, and when energy depletes, the lock releases, drops the rock, and offers reserve energy.
Basically all electricity generation, but a rock and a rope.
Hydroelectric Dams are a gravity based battery. Crudely, water falling spins the turbine generating electricity. One of the few power generating methods that doesn't involve first turning water to steam to spin the turbine.
I’d like to see these spread through neighborhoods, rather than at one central location. It would cut down on power outages due to storms/downed lines.
That drives up maintenance significantly. You suddenly need your technicians driving around everywhere servicing small units rather than at one central location making sure the main unit is online.
