Mining fleet energy efficiency
Company: CleanSpark
The claim, verbatim
Average operating energy efficiency of 16.7 W/TH across operating miners (range 13.5 to 29.5)
Source (primary)
CleanSpark 10-K filed 2025-11-25 (SEC EDGAR, sec_filing)
View cached copy (2026-08-31)Live source ↗
Quote: “The miners in service as of September 30, 2025 had a range of energy efficiency (watts per terahash, "W/TH") of 13.5 to 29.5 W/TH with an average operating energy efficiency of 16.7 W/TH”
How we checked this
Checked on September 16, 2026. The cited source supports every part of this claim.
The filing gives both the 16.7 W/TH average and the 13.5–29.5 W/TH range for miners in service.
Confirmed in the source:
- CleanSpark's miners in service as of September 30, 2025 had an average operating energy efficiency of 16.7 W/TH
- Those miners ranged in energy efficiency from 13.5 to 29.5 W/TH
What we did: Read our cached copy of SEC EDGAR (https://www.sec.gov/Archives/edgar/data/827876/000119312525297510/clsk-20250930.htm) in full (562,147 characters, retrieved August 31, 2026) and checked each assertion in the claim against it.
Additional evidence
confirms CleanSpark 10-K filed 2025-11-25
Quote: “The miners in service as of September 30, 2025 had a range of energy efficiency (watts per terahash, "W/TH") of 13.5 to 29.5 W/TH with an average operating energy efficiency of 16.7 W/TH”