4 ms·
This is a really interesting project: store energy in the form of concrete blocks moved up and down slopes by electric train bogies with regenerative braking. h
by jefurii 10y ago
This is a really interesting project: store energy in the form of concrete blocks moved up and down slopes by electric train bogies with regenerative braking.
http://www.aresnorthamerica.com/ http://www.aresnorthamerica.com/