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this post was submitted on 19 May 2026
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Yeah, but look at the magnitudes of the heat units involved. Modern nuclear plants generate 0.6-4.5 GW at around 30% thermal efficiency (so they generate between 2-15GW of heat). These underwater data centers are looking at 25 MW (0.025 GW) while surrounded by water in 5 of the 6 3-dimensional directions.
There is some risk to local ecosystems, but we're literally talking 2 or more orders of magnitude difference compared to nuclear plants or other thermal plants.
Oh 100% And I was thinking of extreme examples with the Pickering Nuclear station having (once up to) 8 550MW reactors dumping heat into a fairly shallow part of the lake and the NB reactor having no chance to remotely affect the bay of Fundy temps lol.
Lil halicination farms on the seafloor are a dumb idea but not because of heat affecting the environment beyond the thousands of organisms that would live directly on them.