In December 2025, CleanSpark produced 622 bitcoins, marking a calendar-year production increase of more than 10% compared to 2024 despite rising network difficulty. The company achieved a peak single-day production of 20.59 BTC and an average daily output of 20.07 BTC. Operational hashrate reached 50.0 EH/s, with an average operating hashrate of 47.2 EH/s and a peak fleet efficiency of 16.07 J/Th across 245,199 deployed miners as of December 31.

CleanSpark demonstrated its fast-acting demand response capability when it curtailed hundreds of megawatts of mining power across 11 Tennessee sites within 10 minutes at the Tennessee Valley Authority’s request during an extreme cold event. This integration enables TVA to coordinate precise curtailments and restores capacity to the grid, helping prevent blackouts and defer new generation. The initiative underscores CleanSpark’s role as a utility partner and its technological leadership in grid stabilization.

Throughout 2025, CleanSpark evolved from a pure-play Bitcoin miner to a broader digital infrastructure platform. Key milestones include securing a 271-acre site in Texas with 285 MW of long-term power supply for AI compute, selecting Submer as a strategic partner for North American AI data center expansion, and hiring Jeffrey Thomas as SVP of AI Data Centers. Financially, the company closed an upsized $1.15 billion zero-coupon convertible notes offering to bolster its power portfolio. As of year-end, CleanSpark held 13,099 BTC in its treasury, had sold 577 BTC for $51.5 million in proceeds, and maintained 1.45 GW of contracted power capacity with 808 MW currently utilized.