Home mining: honest math for those still asking

Home bitcoin mining is a question the market answered long ago, but people keep asking. The math is simple and cruel.

Why home loses

BTC's production cost is hardware plus electricity. An industrial miner buys ASICs by the container at a discount and electricity wholesale at industrial tariffs - several times cheaper than residential. The home miner pays retail for everything - their production cost sits consistently above the coin's market price. Add the noise (an ASIC is a vacuum cleaner at full throttle), the heat, and the wear on wiring.

The niches that remain

• Free/costless electricity: your own generation, power included in the rent - it changes the whole math.
• Heating with hash: if you need the heat anyway (a house, a greenhouse, a boiler) - the miner is a heater with cashback: you count not income but a discount on heating.
• The solo lottery: cheap mini-miners with a negligible chance of catching a whole block - entertainment, not business.
• Non-bitcoin: GPU coins and "home" algorithms are a separate economy with the same logic: count the watts honestly.

The rule: if your electricity is not free and you do not need the heat - buying the coin almost always beats mining it at home. Boring, but that is the numbers.