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Re:Lithium battery costs have fallen by 98% in three decades by benjohnson on Saturday April 03, 2021 @01:34PM (#26682922)
The 3kWh figure for UK is just electricity - add 12kWH for heating energy from gas to get a more reasonable number given that people in the UK generally don't live in shacks.

https://www.theenergyshop.com/guides/average-gas-and-electri...

Re:Lithium battery costs have fallen by 98% in three decades by ghaff on Saturday April 03, 2021 @01:42PM (#26682992)
Yes, although the 30 kWh US figure doesn't include a lot of gas/oil heat in the North/mountains either. (It does include a lot of AC but average electricity consumption is still a lot higher apparently in the US even taking that into account. I assume bigger houses is one reason.)