This article compares the total economics of home mining vs. professional hosting. Neither approach guarantees profit. Profitability depends on BTC price and network difficulty, which are outside either approach's control.
The Electricity Cost Gap#
The following illustrates the monthly electricity cost difference for a Whatsminer M70S at a typical 3,500 W draw (it draws about 3,140 to 5,000 W depending on power mode) running continuously at two different electricity rates. This is a pure cost comparison, not a profitability claim. Actual mining revenue depends on BTC price and network difficulty.
| Scenario | Rate | Monthly electricity (3,500W, 24/7) |
|---|---|---|
| US residential average (July 2026) | $0.183/kWh | $461 (3.5 kW × 720h × $0.183) |
| Fathom Labs (hosted) | $0.07/kWh all in | $176 (3.5 kW × 720h × $0.07) |
Monthly hours = 720 (30 days × 24h). US residential average = 18.3 cents per kWh for July 2026 (EIA Electric Power Monthly). Actual residential rates vary by location and usage tier.
When Home Mining Can Still Make Sense#
Home mining can be viable if you have access to electricity below roughly $0.06 to $0.07/kWh, through off grid solar, very cheap rural utility rates, or negotiated industrial power. It also suits small scale experimentation where physical access to the hardware is part of the goal. For the vast majority of US residential miners, however, the electricity rate gap alone makes professional hosting the more cost effective path.