alt Hacker News[1] gives different numbers. About 3x decrease in industrial energy consumption since 1970. Steel production decrease is about 3x ([2]). Chemical production has shifted from bulk production to pharmaceuticals.
[1] https://assets.publishing.service.gov.uk/media/651422e03d371...
[2] https://commonslibrary.parliament.uk/research-briefings/cbp-...
That’s a different metric - “million tonnes of oil equivalent”. That’s not the same as electricity consumption - that’s the total amount of energy used in all kinds of industrial processes.