Data centres & networks - IEA
www.iea.org/energy-system/buildings/data-centres-and-data-transmission-networks
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Estimated global data centre electricity consumption in 2022 was 240-340 TWh1, or around 1-1.3% of global final electricity demand. This excludes energy used for cryptocurrency mining, which was estimated to be around 110 TWh in 2022, accounting for 0.4% of annual global electricity demand.
The data centres and data transmission networks1 that underpin digitalisation accounted for around 330 Mt CO2 equivalent in 2020 (including embodied emissions), equivalent to 0.9% of energy-related GHG emissions (or 0.6% of total GHG emissions)
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