this post was submitted on 14 May 2025
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[–] JohnDClay@sh.itjust.works -2 points 6 hours ago (1 children)

I'll need substantiation on the cheaper. Batteries are expensive! And transmission loses get excessive after very long to distances.

[–] Saleh@feddit.org 6 points 4 hours ago (1 children)

Denmark is a small country. Transmission losses are much lower in high voltage DC lines. Battery storages get cheaper consistently. Denmark is close to Norway, where pump storage plants exist and can be built easily.

[–] JohnDClay@sh.itjust.works 0 points 2 hours ago (1 children)

Sources? Anyway, to get a good sized grid to smooth out intermittency, you'll need to connect all Europe or more. I think there's already some of that, but the longer distances you go, the more loss. I agree pumped hydro is a good option, but the promising sites tend to be quite limited when you try to scale up to a full grid. Plus the ecological concerns that come with dams need to be weighed too.

[–] torrentialgrain@lemm.ee 1 points 36 minutes ago

We need to modernize and further integrate the European grid anyway.