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What? Actually solar is pretty decent, even generates DC - lots of stuff is DC nowadays, incl. all direct drives and induction cooking (incl. the obvious all el
by xxs 4y ago
What? Actually solar is pretty decent, even generates DC - lots of stuff is DC nowadays, incl. all direct drives and induction cooking (incl. the obvious all electronics). Both wind and solar are pretty decent at capturing the only (non-nuclear) energy source the Earth has - the Sun.
- alex_duf 4y agoThe only non-nuclear source would be geothermal, and maybe tidal I believe? The sun is literally a nuclear fusion reaction. Wind and hydro are an artefact of the sun + the motion of the planets. We could even stretch the argument that fossil fuels are also indirectly solar from photosynthesis. Maybe it was a typo?
- xxs 4y agoNot a typo - pretty much all the energy that we get on Earth is the just the Sun - which indeed is nuclear (perhaps i should have said fission). "Geothermal" pumps are solar, too (the earth being heated conserving energy), I suppose the term is used a bit too widely - with the Earth core/spinning being a vastly different source. Your point stands though. I meant type of energy that's readily available on Earth - either Sun based (fossil, solar, wind, hydro - all directly depend on the Sun), or nuclear fission. We don't have any fusion available, yet - that would be a real change.