Comment on China completes first full-scale underwater pumped storage trial at 65 meters depth
trolololol@lemmy.world 6 days agoI would still guess lifting water through pipes (specially if the reservoir is uphill in a mountain) is way easier than building something chained at the bottom of the ocean, which would need pulleys and a big heavy weight down there.
trolololol@lemmy.world 6 days ago
Oh now I found time to read the article. I thought they would sink and rise hollowed balls, when they actually keep the balls down and pump water in and out of them.
I wonder if they are heavier than water, so you just need a small anchor to prevent drifting.