Bernd
10/14/2022 (Fri) 17:05
No.48994
del
10/14/2022 (Fri) 17:05
No.48994
del
This is interesting. Sand battery.
https://energycapitalmedia.com/2022/09/13/sand-battery-power-storage-finland/
https://energycapitalmedia.com/2022/09/13/sand-battery-power-storage-finland/