Originally posted by d000hg
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https://www.buybitcoinworldwide.com/mining/hardware
Rig (ASIC): Whatsminer m30s+
Price: $2,500.
Electricity consumption: 3.4kWh
Hash power (TH/s): 100
BTC price: $33k
Electricity cost per kWh: $0.30 (approx 20p)
Running 24x7, this generates $8,800/year in BTC. But it consumes $8,800/year in electricity. In other words, there's no profit and it just breaks even. However, that means you're getting 3.4kWh of free electric heating.
The other thing I'd need to check is how noisy (dB) the fans are in them. It would be a non-starter if they sound like a jet engine.
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