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That's primary energy, of which about half is wasted as heat. Electrification will bring this down by a lot.

Not going to happen in the foreseeable future. Fossil fuels did not change there relative share the past 30 years.

Between 1950 and 1980 the home market for computers was non-existent.

So of course this didn't change in the 30 years following 1980, right?

And big usage of energy is actually heating home so heating water