From September 2021 El Salvador has obtained 474 BTC (about $27.7 million) using geothermal energy from volcanoes, said trader and Bitgrow Lab co-founder Vivek Sen.
Cryptocurrency mining using alternative energy sources is a joint project between the government of El Salvador and a number of companies including Foundry USA, Antpool, ViaBTC, F2Pool and Binance Pool.
El Salvador's total bitcoin reserves are estimated at $333.3 million, according to Nayibtracker. The country has accumulated 5,846 BTC and continues to buy 1 BTC each