It's just a perception. Nebraska had rolling blackouts as recently as 2021 (https://www.nytimes.com/2021/02/16/us/nebraska-rolling-blackouts.html https://www.ny

It's just a perception. Nebraska had rolling blackouts as recently as 2021 (https://www.nytimes.com/2021/02/16/us/nebraska-rolling-blackouts.html https://www.nytimes.com/2021/02/16/us/nebraska-rolling-black...), although that was for extreme cold rather than heat.