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Re:What went wrong with the Texas power grid? by 8note on Tuesday February 16, 2021 @11:28PM (#26162692)
Resistive electricity will be close to 100% efficient, and heat pumps even higher depending on the outdoor temperature.

What kinda of air conditioners beat that for efficiency? I don't think we covered those in heat engines

Re:What went wrong with the Texas power grid? by andbberger on Wednesday February 17, 2021 @12:32AM (#26163075)
Air conditioners are heat pumps. Resistive heating is inefficient compared to burning something, and very inefficient compared to heat pumps
Re:What went wrong with the Texas power grid? by pixl97 on Wednesday February 17, 2021 @01:12AM (#26163285)
In addition to the other comments your missing the heat delta.

We commonly cool from 100 to 70F, or 30 degrees.

Yesterday we were warming from 0 to 65, or a 65 degrees delta.

Re:What went wrong with the Texas power grid? by sokoloff on Wednesday February 17, 2021 @08:12AM (#26165903)
> What kinda of air conditioners beat that for efficiency?

All of them beat resistance electric.