[Brian Griffin]

There is a lot of available of-peak electricity generating capacity - not enough to go 100% electric, maybe around 80%.

The federal government tracks electric output:

https://www.eia.gov/electricity/gridmonitor/dashboard/electric_overview/US48/US48

[norwaypinesavage]

"There is a lot of available of-peak electricity generating capacity - not enough to go 100% electric, maybe around 80%."

I don't know where your 80% number came from. It wasn't in the article you linked. It's generally believed that a full turn to electric cars and no fossil fuels for heating will more than double the need for electricity. We're not anywhere near reaching 80% of that. We're already seeing projected electricity blackouts this winter in some places.