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Solar Has Crossed a Critical Economic Tipping Point | Solar now requires no more upfront capital than coal or gas to produce the same annual electricity (oilprice.com)
submitted 2 months ago by to c/energy@slrpnk.net
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[–] 1 point 2 months ago

Heat pumps work like this. They pump heat into the ground during hot months, then take some of it back during cold months.

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