4 ms·
Could hydrogen electrolysis be viable as grid or building level energy storage? Round trip efficiency is bad of course, but I (naively) wonder if it wouldn't ha
by salamandars 5y ago
Could hydrogen electrolysis be viable as grid or building level energy storage? Round trip efficiency is bad of course, but I (naively) wonder if it wouldn't have a lot of the downsides fuel cells have for vehicles?
You could bury a huge volume of tanks beneath new buildings and store the gas at a lower pressure than we see in hydrogen car tanks - wouldn't that make the whole system simpler and more economical?
- pfdietz 5y agoYes, grid is a big use case. Hydrogen can be stored in salt domes for maybe $1/kWh (energy capacity cost). This is two orders of magnitude cheaper than batteries, and could be used for seasonal load leveling.