The_Ombudsman t1_j0mxhxq wrote on December 17, 2022 at 9:58 PM

Reply to comment by schwangeronis in Switzerland’s Giant “Water Battery” Starts Working by Wagamaga

That's all well and good, and was covered in the article.

Doesn't really answer my question though.

The_Ombudsman t1_j0m3na6 wrote on December 17, 2022 at 6:29 PM

Reply to Switzerland’s Giant “Water Battery” Starts Working by Wagamaga

Neat!

Now I have a question: for a given volume of water, how much power is produced coming down through the turbines, and how much power would it cost to pump that same volume of water back up to the upper reservoir?

I really doubt they can get more power out than they use; otherwise it'd just be running all the time, free electricity! But I'm curious what the figures would be anyway.