Cipher Mining (CIFR) has begun bitcoin
Phase I of the site, currently running at 150 MW, has reached an initial hashrate of 2.5 exahashes per second (EH/s). That number is expected to rise to 9.6 EH/s by the end of the third quarter, as new mining rigs arrive and replace older units. Once fully operational, Cipher's total fleet will push toward a self-mining capacity of 23.1 EH/s.
coindesk.com