RELAY
Pressurized air
" HYDROSTOR , provides energy storage by compressed air of 400Mw/3200Mw"
PV Magazine USA
Article from November 23, 2021
Compressed-air storage for commercial applications
Article from October 28, 2021
Mass Storage
A giant stack 120 meters high.
20 minutes
Article from October 26, 2021
Hydrogen
Hydrogen: an electrolyser that goes from 0 to 50,000 amps in less than 10 seconds
PV Magazine
Article from December 16, 2021