“The most striking finding is that world electricity energy efficiency (measured as overall primary-to-useful exergy efficiency) has stalled, rising dramatically from 2% in 1900 to 15% in 1960, and remaining nearly stable for the last 50 years, only reaching 17% by 2017.”
Why? Power generation got very efficient from 1900 to 1960 but we started to use the electricity in uses that aren’t efficient (mainly switching use to heat and cool buildings).
