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In the case of wind and solar, you over-provision to enable dispatching. There's plenty of curtailment of wind turbines (in the US, at least) due to limitations of grid or lack of sufficient demand. Obviously it doesn't work if the wind's not blowing or the Sun's not shining.

Similarly, nukes get curtailed when the weather is hot and their cooling systems become the limiting factor. And coal plants are notorious for going off line just when you need them.

"Dispatchable power" is a slippery term.

by asdf on Fri Jun 17th, 2022 at 03:50:10 PM EST
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