A sudden freeze in Texas has the potential to cause a 34% decline in Bitcoin hashrate, with some miners having to scale back operations due to increased demands on the state's energy network. The freezing temperatures, which began on January 14, led to a drop in the total Bitcoin network hash rate from 629 EH/s on January 11 to around 415 EH/s on January 15, marking a 34% decrease. Texas contributes approximately 29% of the U.S. Bitcoin hashing power, with many mining companies relocating to the state after China's crackdown on Bitcoin miners. Notable mining firms in Texas include Marathon Digital, Riot Platforms, Bitdeer, and Core Scientific.
Despite the lower temperatures, there were fewer reports of severe power outages compared to the winter storm in 2023. Mining companies, such as Marathon Digital and Riot, have participated in programs organized by the Electric Reliability Council of Texas (ERCOT) that compensate them for adjusting load on the state's grid during periods of high demand. Marathon Digital's Charlie Schumacher noted that Bitcoin miners play a crucial role in supporting the power grid during extreme weather events by acting as a base load, shutting down when necessary to provide more abundant and cheaper energy to those in need.
Riot Platforms actively engages in demand response programs, and ERCOT manages the company's load when assistance is crucial for balancing the grid during severe weather conditions, according to a spokesperson. Texas experiences high demand during extreme heat in summer and winter, impacting the state's energy infrastructure. Argo Blockchain previously reported a significant decline in activity at its Helios, Texas, facility in December 2022 due to winter conditions, resulting in a roughly 25% decrease in Bitcoin mining volumes from November. As of January 17, ERCOT anticipates that grid conditions will return to normal starting at midnight local time.
