this post was submitted on 30 Aug 2025
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247
Japanese Power Plant Turns Saltwater Into Electricity (www.theguardian.com)
submitted 4 days ago by kalkulat@lemmy.world to c/technology@lemmy.world
33 comments fedilink hide all child comments
 

It's not -a lot- of electricity ... a couple of thousand kWh per day. It's also used to de-salinate ocean water ... of which there's plenty.

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[–] jobbies@lemmy.zip 2 points 4 days ago

Its miles better than traditional desalination - requiring so much energy that burning fossil fuels is unavoidable. And brine is chucked back in the ocean. Basically an environmental catastrophe.

If you think of it on the scale of one community - providing potable water, dealing with treated wastewater AND getting a surplus of energy while treating the brine it is actually pretty clever.

If it makes you feel better you could probably slap some solar panels on those flat roofs too.