They are just re-capturing some of the energy the system spent turning salt water into fresh. Because that results in extremely salty brine water waste, you can get some energy as it gets diluted back down to sea water concentration.
There no “new” energy in the system, it’s just wasting less.
rumschlumpel@feddit.org 2 days ago
If they’re mostly using electricity or even combustion to evaporate the water (as opposed to sunlight), there’s no chance that the concentrated saltwater creates more electricity than it costs.
Ilovethebomb@sh.itjust.works 2 days ago
They’re using brine from a reverse osmosis plans and wastewater, so yes, that is indeed the case.
rumschlumpel@feddit.org 2 days ago
Far cry from “perpetual free energy scheme”, though.
Ilovethebomb@sh.itjust.works 2 days ago
I don’t think anyone claimed it was.