Friday, March 17, 2017
Save water and generate electricity at the same time!
http://www.thebetterindia.com/91624/thinkphi-ulta-chaata-rainwater-solar-energy/
Pumped hydro - another renewable source
http://mobile.abc.net.au/news/2017-03-17/how-seawater-hydro-could-help-south-australia/8363054?pfmredir=sm