I’ll note that right now, this is a seasonal issue, associated with moderate springtime temperatures when there is a lot of sunshine available.
I’ll note that right now, this is a seasonal issue, associated with moderate springtime temperatures when there is a lot of sunshine available.
Im a fan of gravity based energy storage. Excess energy is used to raise a weight up a slope and it can be reclaimed when the weight is released.
There is a reason why energy based energy storage is not more developed right now (with the exception of Pumped-storage hydroelectricity). It’s not very dense at all.
A 15 tons block of concrete that goes up 100m can only store 4kwh of energy. A 4.5kwh battery cost around 1600€.
Gravity based energy storage seem simple and elegant at first but you go into the details you realized that is far far les efficient than regular chemical battery. Unfortunately.
Absolutely! Living in a city, this gets a bit tricky though. But if I had a giant reservoir on a hill…and another one below it…