Japan tested a giant turbine that generates electricity using deep ocean current

Re:Japan tested a giant turbine that generates electricity u... by user3939382 on Saturday June 04, 2022 @03:00PM (#31623954)

Just to point out, we would be harvesting a lot more than we use because of inefficiencies in capturing, storage, and transmission strategies. Also note that the amount we use is lower than it would otherwise be if we had access to more energy, industry is energy-constrained.

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Re:Japan tested a giant turbine that generates electricity u... by rootusrootus on Saturday June 04, 2022 @03:08PM (#31624019)

In the case of something like PV, would that matter too much? The inefficiency doesn't mean the rest is lost, just that it stays in the local environment rather than get transmitted away somewhere else on a wire.

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Re:Japan tested a giant turbine that generates electricity u... by omgwtfbyobbq on Saturday June 04, 2022 @03:18PM (#31624120)

Pretty much. As an examples, in deserts, there can be a modest increase in local IR radiation because of the change in albedo from PV panels compared to sand, but the overall decrease in IR from avoiding the CO2/etc emissions of fossil fuel generation is much, much larger than the local increase.

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