News for hackers. Stuff that matters.

A comment on Gravity Energy Storage: Alternative to batteries for grid storage. Parent comment

Re:Gravity Energy Storage: Alternative to batteries for grid... by taeric on Tuesday January 05, 2021 @04:26PM (#25651327)
Seems the train idea is similar to the old counterbalance system for trollies in Seattle.
[ Parent | on HN ]
Re:Gravity Energy Storage: Alternative to batteries for grid... by imtringued on Tuesday January 05, 2021 @05:51PM (#25652338)
Hydro pump storage works because you don't have to pay for the weights. Building a train is worse than batteries in terms of economics.
[ Parent | on HN ]