How much cost savings could be expected using a solar power system that creates 2100 watts during the sun day?
this house has a 2 yr old Sunny Boy 2100u system installed. 4BR, 2.5 Bath House.
Best answer:
Answer by billrussell42
If you have 8 hours of sun a day, that is 2100*8 = 16800 watt hours of energy, or 17 kW-hrs.
17 kW-hrs purchased from the power company is about $ 1.70, so you will save about $ 50 per month.
This assumes power costs 10ยข per kW-hr
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