CleanSpark closed out August with a familiar pattern for Bitcoin miners this year: production climbed, but so did sales, leaving the Nasdaq-listed company with fewer coins in its treasury than it started the month with. The latest operational update, released on September 8, shows just how tightly CleanSpark bitcoin mining economics are tracking rising energy prices, hashprice swings and a growing derivatives book tied to nearly a third of its holdings.
Key takeaways
- CleanSpark mined 593 Bitcoin in August at an average operating hashrate of 38.3 exahashes per second, up seven BTC from July’s output.
- The company sold 821 Bitcoin during the month, more than production, ending August with 13,703 BTC in holdings.
- Roughly 29% of those holdings — 3,951 BTC — are tied up as collateral or receivables linked to derivatives.
- August’s average hashprice hit $34.63 per petahash daily, the strongest monthly reading since May.
- CleanSpark’s peak fleet efficiency of 16.07 joules per terahash implies an electricity-only breakeven near $0.09 per kilowatt-hour, before other operating costs.
CleanSpark’s Bitcoin Mining and Sales Performance in August
CleanSpark produced more Bitcoin in August than in July, even as its computing power edged lower. The company mined 593 BTC last month, a seven-coin increase from July’s 586 BTC, despite average operating hashrate slipping from 38.6 EH/s to 38.3 EH/s. Daily production averaged 19.12 BTC, with a peak day hitting 20.40 BTC, according to the company’s update. Year-to-date output reached 4,903 BTC.
Operational hashrate, which CleanSpark defines as the highest computing power reached concurrently by installed and functioning miners rather than an average, held steady at 50 EH/s throughout the month.
Sales outpaced production, shrinking treasury holdings
The bigger story in August wasn’t mining output — it was selling. CleanSpark offloaded 821 BTC during the month, a mix of 77 BTC sold at spot prices, 500 BTC sold through call exercises, and 244 BTC tied to a delta-neutral basis trade. The average reported sale price came to $65,420 per BTC, a figure the company calculates using net proceeds plus premiums rather than a simple spot-market number.
With 593 BTC mined against 821 BTC sold, treasury outflows exceeded new production by 228 coins. That gap explains the drop from 13,931 BTC at the end of July to 13,703 BTC at the close of August. Of that year-end balance, 3,951 BTC — about 29% of total holdings — were posted as collateral or booked as receivables connected to derivative positions. CleanSpark did not disclose profits, losses, counterparties or maturity dates tied to those trades, leaving an open question about how much counterparty exposure sits behind the numbers.
Operational Efficiency and Mining Economics
CleanSpark’s fleet efficiency numbers help explain why the company managed to grow output even as hashrate dipped slightly. As of August 31, the deployed fleet contained 201,269 machines, with peak efficiency measured at 16.07 J/TH. The company also reported 808 megawatts of maximum concurrent power draw against 1.8 gigawatts of contracted capacity. It’s worth noting that the 16.07 J/TH figure is a peak reading for the best-performing machines, not a fleet-wide average, so it can’t be used alone to reconstruct CleanSpark’s full electricity bill.
Hashprice climbed to its best level since May
Mining economics improved broadly in August, largely thanks to a Bitcoin price rally in the final third of the month. Hashprice — the revenue miners earn per unit of computing power — opened the month at $31.63 per petahash daily and closed at $39.33, according to Luxor’s monthly analysis. The August average landed at $34.63 per petahash daily, the highest monthly bitcoin hashprice reading since May.
What the breakeven math suggests about margins
Running that hashprice figure against CleanSpark’s peak 16.07 J/TH efficiency implies an electricity-only breakeven price of roughly $0.090 per kilowatt-hour. That estimate comes from dividing daily revenue of $34.63 per petahash by about 385.7 kilowatt-hours of daily consumption. It excludes payroll, maintenance, pool fees, depreciation, financing and corporate overhead — meaning it tells only part of the profitability story.
Luxor separately estimated that fleets running between 14 J/TH and 19 J/TH generated average energy revenue of about $87 per megawatt-hour in August, against an industry-average power cost near $48 per megawatt-hour. Since CleanSpark’s peak efficiency sits inside that range, its best-performing machines likely covered their direct power costs. Whether the company’s entire operation turned a net profit for the month remains unclear, since CleanSpark hasn’t disclosed its average electricity price or fleet-wide efficiency — both of which would be needed to settle the question. This is one of the more important “why it matters” angles for anyone tracking CleanSpark bitcoin mining efficiency: peak numbers look strong, but they don’t automatically translate into company-wide margins.
Financial Context and Derivative Exposure
CleanSpark’s most recent quarterly filing, covering the period ended June 30, offers useful context even though it predates August by two months. The company reported $138 million in Bitcoin mining revenue and $85.5 million in cost of revenue for that quarter, a gap that points to a positive margin on the mining side before other expenses. Cost of revenue figures excluded depreciation and amortization.
Despite that mining-level margin, CleanSpark posted a $239 million company-wide net loss for the quarter, driven in part by a $116.3 million Bitcoin fair-value loss along with payroll, professional fees and corporate expenses. Quarterly revenue fell 30.5% year-over-year. That accounting loss shouldn’t be read as proof that every coin mined lost money directly — fair-value swings on held Bitcoin can distort the bottom line independently of mining operations.
The derivatives tied to 29% of August’s Bitcoin holdings add another layer of complexity. Those positions may generate premiums or hedge against price swings, but they also introduce collateral and counterparty risk that isn’t fully detailed in the company’s disclosures.
Data Center Expansion and Regulatory Approvals
Beyond mining output, CleanSpark is leaning into infrastructure expansion tied to data centers rather than pure Bitcoin production. Construction is ongoing at the company’s Sandersville, Georgia, campus, which CleanSpark links to $6.6 billion in contracted revenue over the life of its agreements — a figure representing future expected revenue rather than money already recognized.
In Texas, the grid operator ERCOT issued conditional batch-zero classifications covering 585 MW of contracted baseload capacity and 300 MW of studied load capacity. Conditional approval is a meaningful step, but it doesn’t guarantee the sites have cleared every hurdle needed to run at full capacity. CleanSpark said it will keep working with ERCOT and the Public Utility Commission of Texas to move those projects forward.
Why does this matter for the broader mining sector? It signals that CleanSpark, like several of its peers, is increasingly treating power capacity and data-center infrastructure as strategic assets in their own right — not just inputs for hashing Bitcoin. Regulatory approvals in Texas and construction progress in Georgia will shape how much flexibility the company has to pivot capacity between mining and other computing uses down the line.
FAQ
How much Bitcoin did CleanSpark mine and sell in August?
CleanSpark mined 593 Bitcoin and sold 821 Bitcoin in August, ending the month with 13,703 BTC in holdings.
What was CleanSpark’s mining efficiency and electricity cost breakeven in August?
CleanSpark reported peak efficiency of 16.07 joules per terahash, which implies an electricity-only breakeven cost near $0.09 per kilowatt-hour before other expenses are factored in.
Did CleanSpark generate a net profit from mining in August?
It remains unclear whether CleanSpark’s entire mining operation was net profitable in August, since the company did not disclose its average electricity price or full monthly operating expenses.
What is the status of CleanSpark’s data center expansion and regulatory approvals?
Construction at the Sandersville, Georgia data center campus is ongoing, tied to $6.6 billion in contracted revenue, while ERCOT has issued conditional approvals covering 885 MW of combined capacity in Texas.
Article produced with the assistance of artificial intelligence and reviewed by the editorial team.
