Retail Mining

"Retail mining" is small-scale Bitcoin mining done at home or in a small operation, typically with one or a few ASIC units. It's been economically marginal since around 2014 when industrial mining took over, but the category has been quietly revived in 2024-2026 by some specific tailwinds.

What makes retail mining viable in 2026 for some operators:

• Heat reuse. A mining ASIC produces 3-4 kW of heat continuously. In a cold climate, that's free space heating. The "miner" effectively pays for the BTC with electricity it would have spent on heat anyway. Bitmain's Antminer Hydro line and standalone "space heater" form factors specifically target this market.
• Off-grid energy. Stranded renewables (rural solar, wind, micro-hydro) can power miners without grid connection. The BTC produced is essentially a payment for using energy that would otherwise be curtailed.
• Hash-rate-as-savings. Some users frame retail mining as "DCA via electricity bill" - regular small BTC accumulation rather than expecting day-by-day profit.
• Lottery-mining culture. Cheap "lottery" miners running at home solo, with negligible expected revenue but a non-zero chance of finding a block worth ~3.125 BTC. A few have actually won; the stories sustain the genre.

What still doesn't work:

• Pure profit-driven retail mining competing with industrial operations on standard residential electricity rates (typically $0.10-0.30/kWh). Industrial mining at $0.04-0.07/kWh outcompetes you.
• Old hardware on residential rates. A 2-year-old miner at 25 J/TH on $0.15 kWh electricity loses money even before depreciation.

Retail mining isn't going to dominate global hash rate. It might play a real role at the margins - in heating economies, in off-grid setups, and as the cultural backbone of "I run my own miner." That's a smaller story than the industry, but a real one.