I’m running a small setup at home and my power bill is starting to eat into my earnings. I know I can’t go full industrial scale, so I’m thinking of upgrading to a more efficient machine instead of adding more units. Any recommendations on how to optimize for energy costs without sacrificing too much performance?
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That’s the exact route I took last winter. I switched out two older rigs for a single newer model after diving deep into bitcoin miner efficiency 2025 https://scalar.usc.edu/works/best-bitcoin-miners-2025-top-10-asic-machines-for-maximum-profitability-/index?t=1748507914228 comparisons. What I found is that the newest generation of machines is designed with energy optimization in mind — I’m talking 26–28 J/TH ranges compared to 34+ from older units. That efficiency translates to real savings. One of my units, for example, runs at around 3.1 kW but consistently delivers 140+ TH/s with very little fluctuation, and it doesn’t even require external cooling unless the ambient temperature hits 30°C. A lot of newer miners also have smarter firmware that manages power draw dynamically depending on heat and performance demands. This means during off-peak times or cooler nights, your machine isn’t just running flat-out and wasting electricity. You also avoid hash rate dips caused by overheating. If your electricity costs are fixed per kWh, a high-efficiency miner will absolutely pay for itself faster, especially during market dips when margins are tight. I tracked ROI across several months and the drop in utility cost made a bigger difference than a small bump in TH/s.
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