Costs about 17 cents per loaf in electricity, and my power rate is pretty high at $0.25/kWh.
- Blend: 7 minutes @ 100W (0.1 KW x 0.12 hours = 0.012 kWh). I'm being generous here since this is just an intermittent blend and the motor pulses slowly and doesn't use 100 watts for the whole cycle).
- Rest: 1 minute @ 0W
- Mix: 25 minutes @ 100 W (0.1 KW X 0.42 hours = 0.042 kWh)
- Proof 1: 58 minutes @ 50W (0.05 X 0.97 hours = 0.05 kWh)
- Proof 2: 50 minutes @ 50W (0.05 x 0.83 hours = 0.04 kWh)
- Bake: 50 minutes @ 650 W (0.65 x 0.83 hours = 0.54 kWh)
- Keep Warm: I never use this, but up to an hour at probably 100 watts. (0.1 KW x 1 hour = 0.1 kWh)
Total: 0.684 kWh x $0.25/kWh = $0.17 per loaf ($0.20 per loaf if I use the keep warm feature for the full hour).
For comparison, the regular oven is 4400 watts and takes 10 minutes just to pre-heat. That's $0.18 cents in electricity cost before I even bake the bread.