Re:Stacking concrete blocks is a surprisingly efficient way ...
by nabla9 on Saturday August 18, 2018 @04:20PM
(#17790434)
There are systems like that:
* old empty mine in Germany. They pump air into the mine and then heat it to get extra energy when letting it out.
* big underwater bags next to wind turbines. Wind turbine directly pumps air into nearby bags. When there is no wind, the air is used to rotate the same electric generator that the wind turbine uses.
* old empty mine in Germany. They pump air into the mine and then heat it to get extra energy when letting it out.
* big underwater bags next to wind turbines. Wind turbine directly pumps air into nearby bags. When there is no wind, the air is used to rotate the same electric generator that the wind turbine uses.