In June, Bitcoin mining firms across Texas reported lowered BTC output due to deliberate power curtailment, a strategy to sidestep the expensive tariffs imposed during peak electricity usage periods.
Source: CleanSpark
These measures were especially influenced by the Electric Reliability Council of Texas’s (ERCOT) Four Coincident Peak (4CP) program, which targets electricity demand charges during the hottest months.
As of the time of this writing, Bitcoin is trading around $107.5K.
The 4CP program is a tariff designed to capture transmission demand charges during the four highest electricity demand hours in June, July, August, and September. Large consumers like Bitcoin miners are billed based on their electricity use during these peak windows.
To avoid hefty transmission charges, Bitcoin miners voluntarily reduce electricity consumption during these peak hours. This “economic curtailment” helps them minimize costs while contributing to grid stability.
Riot Platforms, a leading Bitcoin miner, reported mining 450 BTC in June—a 12% drop from 514 BTC in May. CEO Jason Les highlighted the firm’s participation in ERCOT’s 4CP and other demand response programs as part of its power strategy.
Riot Platforms’ Production Figures For June 2025
Source: Riot Platforms
The company also disclosed selling 397 BTC for $41.7 million, holding a total of 19,273 Bitcoin at the end of June.
Cipher Mining echoed a similar approach, reporting 160 BTC mined in June with 58 BTC sold, and holding 1,063 BTC. Their Black Pearl facility began contributing at the end of June but overall production was lowered due to deliberate curtailment.
Cipher’s spokesperson explained that their “proactive 4CP avoidance strategy” allowed the company to evade expensive penalties and keep some of the lowest power costs in the industry.
Marathon Digital Holdings reported a 25% production drop in June, mining 211 Bitcoin compared to 282 in May. The company held 49,940 BTC as of June 30, without selling any during the month.
MARA CEO Fred Thiel attributed the decline to:
Contrasting with the others, CleanSpark increased its Bitcoin production by 6.7% in June, surpassing its mid-year hashrate goal of 20 exahashes per second (EH/s). The firm mined 445 Bitcoin, sold only 8, and held 6,591 Bitcoin at month-end.
Electricity often represents the largest expense for Bitcoin miners. By curtailing power during peak demand, miners can reduce costly transmission charges and maintain profitability, especially in energy-intensive regions like Texas.
Voluntary reduction in electricity use during peak hours also helps ease stress on the power grid, preventing outages and supporting reliable energy delivery.
Power curtailment is the deliberate reduction of electricity usage during peak demand times to avoid high transmission fees and maintain lower operational costs.
Texas offers low electricity costs and favorable regulations, making it a hotspot for Bitcoin miners. However, its power grid’s peak demand charges encourage miners to participate in programs like ERCOT’s 4CP.
ERCOT’s 4CP tariff charges large consumers based on their electricity use during peak demand hours in summer months, incentivizing miners to curtail operations during those periods.
Yes, short-term production dips may occur, but overall profitability improves by avoiding high energy costs and penalties during peak demand times.
This varies by company. For instance, Riot sold a significant portion of their BTC, while Marathon held their entire inventory in June.
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