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A severe winter storm, dubbed Frenan, has swept across the United States, causing significant disruptions to Bitcoin mining operations. Foundry USA, a major player in the industry, experienced a dramatic 60% drop in its hashrate, impacting the overall Bitcoin network's block production efficiency. This event underscores the vulnerability of large-scale mining to extreme weather and energy grid instability.
Key Takeaways
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Winter Storm Frenan caused a 60% reduction in Foundry USA's mining hashrate.
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Bitcoin network block production was delayed by an average of 2 minutes.
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Foundry USA's hashrate fell from approximately 340 EH/s to 242 EH/s.
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This outage represented about 23% of the global Bitcoin network's mining power.
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Other major miners, including Luxor and Marathon Digital Holdings, also curtailed operations.
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The event highlights the dependence of mining on regional energy infrastructure and the risks of geographic concentration.
Impact on Foundry USA and Bitcoin Network
The brutal winter storm Frenan has significantly impacted Bitcoin mining operations across the U.S., with Foundry USA bearing a substantial brunt. The firm's total hashrate plummeted by nearly 60% on Friday, dropping from a peak of around 340 EH/s to as low as 242 EH/s. This reduction accounted for approximately 23% of the global Bitcoin network's mining power going offline, leading to a slowdown in block production. The network's average block time increased to about 12 minutes, exceeding the target of 10 minutes and temporarily reducing transaction throughput.
Curtailment Among Mining Facilities
Foundry USA, heavily reliant on facilities in storm-affected regions like Texas, voluntarily reduced its operations as part of a demand response strategy to help stabilize the power grid. This practice is common during periods of extreme weather and high energy demand. Luxor, another significant U.S.-based Bitcoin miner, reported a similar decline, with its hashrate dropping from 45 EH/s to roughly 26 EH/s. Combined, these two pools saw over 110 EH/s of computing power taken offline. Other U.S.-based mining entities, including those associated with Marathon Digital Holdings, have also curtailed their hashing power. Miners often find it economically rational to power down during peak stress periods, either to sell electricity back to the grid or avoid high operating costs.
Implications for Bitcoin Network Resilience
The widespread curtailment of mining operations due to Winter Storm Frenan highlights the inherent dependence of Bitcoin mining on regional energy infrastructure and the risks associated with geographic concentration. While Bitcoin's decentralized nature allows miners in unaffected areas to compensate over time, such sudden, large-scale offline capacity can introduce short-term security and efficiency concerns. This is not an unprecedented event; similar disruptions occurred during the 2021 and 2022 Texas freezes when miners powered down to prevent broader grid failures. Despite the significant hashrate dip, the Bitcoin price has shown resilience, hovering near $87,773 with a notable increase in trading volume.
Broader Impact of Storm Frenan
Winter Storm Frenan has been a historic event, stretching approximately 1,800 miles from the southern plains through the Midwest and into the Northeast. The storm has caused widespread power outages, leaving over one million households and businesses without electricity, with some areas facing multi-day restoration efforts. States such as Texas, Arkansas, Tennessee, and Louisiana have been particularly hard-hit, experiencing destructive ice accumulation that has toppled trees and power lines.
Sources
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Winter Storm Frenan Causes 60% Drop in Foundry USA’s Mining Hashrate, The Crypto Times.
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