Data: Bitcoin's annual electricity consumption reaches 138 TWh, with 52.4% coming from sustainable energy sources
2025-10-20 00:27:38
On October 20th, the latest "Cambridge Digital Mining Industry Report 2025" shows that Bitcoin's current annual electricity consumption is estimated at 138TWh, generating about 39.8Mt of carbon dioxide equivalent emissions. The report states that 52.4% of Bitcoin mining energy currently comes from sustainable sources such as renewable energy and nuclear energy. In contrast, Ethereum has reduced energy consumption by about 99.9% by moving from proof-of-work (PoW) to proof-of-stake (PoS) mechanism after completing the "merger" upgrade in September 2022. Experts say that the environmental impact of Bitcoin mining has gone beyond pure electricity consumption and also includes multiple dimensions such as carbon emissions, water consumption, land use and e-waste. As policy pressure increases, governments are increasingly concerned about the type of energy used for mining, its location, and its external impact.
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