Power cost decides how much you earn. At $0.10 per kWh, only the most efficient of the three machines tested stays above break-even. Difficulty rose significantly recently, so efficiency matters even more now. Efficient machines, low power costs, and steady uptime protect your earnings. This guide shows the math and a step-by-step plan, so recheck your numbers every two weeks.
November 2, 2026 11 minutes read
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