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A comment on Modeled impact of large-scale wind and solar farms in the Sahara. Parent comment

Re:Modeled impact of large-scale wind and solar farms in the... by xyzzyz on Thursday September 06, 2018 @06:13PM (#17930091)
> Transferring heat from inside a 80F house to the 110F air outside is not very efficient, only about 30-60%.

Where did you get this number from?

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