ChainCatcher message, according to data from Woocharts, the proportion of clean or sustainable energy used in mining is currently 56.76%. Since April 2021, the use of clean energy in BTC mining has been steadily increasing. The platform measures its use of clean energy by employing Cambridge Alternative Finance's definition of sustainability, with relevant metrics depending on the share of crypto mining operations from energy sources such as wind, solar, hydro, and even nuclear power.

In recent years, Bitcoin mining companies like Riot Platforms and MARA Holdings have increased their investments in clean energy. However, against the backdrop of the current global energy crisis, mining costs have continued to rise. To cope with this situation, most mining companies are using their remaining capital to purchase Bitcoin.