Bitcoin mining companies PowerCompute and CleanSpark released September operational updates this week, highlighting divergent strategies around production, debt and data-center expansion. The reports show how public miners are using Bitcoin treasuries and long-term financing to reshape balance sheets.
PowerCompute mined 8.1 BTC in September, a 37% increase from 5.9 BTC in the same month last year and slightly above August's 7.9 BTC. However, its month-end Bitcoin holdings fell to 63.7 BTC from 323.02 BTC at the end of August. The company deployed 267.4 BTC to help retire principal and accrued interest on a Bitcoin-backed credit facility with Arch, eliminating approximately $22.45 million in obligations. Secured debt fell from roughly $23.7 million to $1.25 million, with the remaining borrowing no longer secured by Bitcoin.
PowerCompute also generated about $89,000 from selling electricity back to the grid in September, contributing to roughly $312,000 in energy sales for the three months ended September. The company operates 26 megawatts of interconnected power infrastructure across Oklahoma and Mississippi and is exploring high-performance computing and AI-related infrastructure.
CleanSpark reported producing 529 BTC in September, averaging 17.64 BTC per day with a peak single-day output of 18.99 BTC. Its total production for the first nine months of 2026 reached 5,432 BTC. The figures are unaudited and cover the period ended September 30.
CleanSpark also confirmed that its subsidiary, CSDC Finance I, LLC, completed the issuance of $2.276 billion in senior secured notes with a 7.875% interest rate, maturing in 2031. The proceeds will fully fund the Sandersville data center project in Georgia, whose lease agreement is expected to generate approximately $6.6 billion in revenue over its initial term. The transaction does not require issuing new shares, avoiding shareholder dilution. Chairman and CEO Matt Schultz described the financing as a milestone demonstrating institutional confidence.
The company added that it will discontinue monthly operational updates and adopt a quarterly reporting schedule, meaning investors will receive Bitcoin production and data center progress metrics less frequently.
