What is it about?
This paper analyses the long-term evolution of global electricity efficiency between 1900 and 2017. It reconstructs historical trends in electricity generation and conversion to examine how average efficiency has changed over time and identifies the factors behind periods of improvement and stagnation.
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Why is it important?
Electricity is expected to play a central role in the energy transition, but the benefits of electrification depend on the efficiency of power generation and electricity use. By providing a long-run empirical assessment of global electricity efficiency and showing that improvements have slowed in recent decades, the study offers important insights for evaluating the implications of expanding electricity demand in a renewables-based energy system.
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This page is a summary of: The rise and stall of world electricity efficiency:1900–2017, results and insights for the renewables transition, Energy, April 2023, Elsevier,
DOI: 10.1016/j.energy.2023.126775.
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