ajmmsr t1_jaqs9iv wrote
Reply to comment by SandAndAlum in Electric world that kicks out fossil fuels will cost less than combustion economy. 30TW of wind and solar PV will take 0.2% of earth's surface. by DisasterousGiraffe
Arrrgh
Yeah 262PWh at 100% capacity factor
Since wind cf is about 30% That’s 78.8PWh of energy, so 2.7 times the USA energy.
No where in that article does it mention nameplate
SandAndAlum t1_jaqsy07 wrote
It's ambiguous then as to what cf they mean.
New western offshore wind is in the 40-50% cf range. EU solar is 13% so there's a big range there.
10TW net final energy to replace existing 18TW of world wide primary energy and cover some growth sounds pretty close to most ballparks so 30TW of 30% cf sounds reasonable.
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