According to a September 2022 report by the International Energy Agency (IEA), the amount of electricity consumed by data centers globally in 2021 was between 220 and 320 terrawatt-hours, which is about 0.9-1.3 percent of total electricity use. That doesn't include the “mining” associated with cryptocurrency applications, and the amount has actually been pretty steady, because of efficiency improvements in computer hardware and software.
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