26 Rigs, One Cheap OPEX: 2025’s Definitive Ranking of Modern Bitcoin Miners

At an operating expense of $0.04 per kilowatt-hour (kWh), the current crop of SHA256 bitcoin miners sorts into a clear profit ladder, with high-hashrate hydro units setting the pace and a few efficient air and immersion options keeping things interesting. The Four-Cent Test: Which Bitcoin Mining Rigs Still Shine The king of the hill at