The map says it all from the eia article Two-thirds of North America is at risk of energy shortfalls in high summer heat, NERC says (6/26/2023).
If temperatures spike this summer, parts of the United States could face electricity supply shortages as demand for cooling increases, according to analysis by the North American Electric Reliability Corporation (NERC). The latest summer reliability report from NERC warns that two-thirds of North America is at risk of energy shortfalls this summer during periods of extremely high electricity demand.
There is a link to the data on the page.
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