Per "power authorities estimate".
"27 private [miner] companies"
"$25M to $28M / month", "and growing"
https://xcancel.com/KalKassa/status/1941104355530485941
"The revenue was generated by diverting electricity to Bitcoin mining, which was otherwise wasted due to a lack of transmission infrastructure."
https://xcancel.com/GridlessCompute/status/1941191167565025433