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40% of US electricity is now emissions-free (arstechnica.com)

submitted 11 months ago by boem@lemmy.world to c/technology@lemmy.world

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[–] GabberPiet@lemmy.world 5 points 10 months ago (13 children)

The problem is that there are currently no good (cheap, scalable) technologies to store these large amounts of electrical energy.

[–] iknowitwheniseeit@lemmynsfw.com 3 points 10 months ago (3 children)

Pumped hydro works well for storage, although it basically has the same problem as hydro power - it's only available in places with water and elevation changes.

[–] Justas@sh.itjust.works 4 points 10 months ago (2 children)

Yes, but an elevation change of 100 meters is enough for one: The one near me for example

[–] iknowitwheniseeit@lemmynsfw.com 3 points 10 months ago

Interesting! Still way too much elevation needed to be useful for us in Holland though. 😆

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