Do you ever comment on other threads?
http://www.nrel.gov/docs/fy04osti/35297.pdf
For example 2 kW system, that cost $18,000 would save a typical homeowner 2 x 12.15 cents/hour. Let's say 9 hours/day production gives us 9x2x12.15 or $2.19/day. That would take 22.5 years to pay for itself.
A larger 5 kW system, costing roughly $35,000, would give you 5 x 12.15 cents/hour. That would take 9 x $35,000 / (9 x 5 x 12.15) = 17.1 years to pay for itself.
Things would vary if you have more or less sunshine and, of course, is dependent on your actual price for electricity and for the solar PV system.
If you happen to live in an area that allows net metering, your local power utility is required to buy excess electricity from you at the retail rate. This can significantly increase your payback rate.
http://www.nrel.gov/docs/fy04osti/35297.pdf
For example 2 kW system, that cost $18,000 would save a typical homeowner 2 x 12.15 cents/hour. Let's say 9 hours/day production gives us 9x2x12.15 or $2.19/day. That would take 22.5 years to pay for itself.
A larger 5 kW system, costing roughly $35,000, would give you 5 x 12.15 cents/hour. That would take 9 x $35,000 / (9 x 5 x 12.15) = 17.1 years to pay for itself.
Things would vary if you have more or less sunshine and, of course, is dependent on your actual price for electricity and for the solar PV system.
If you happen to live in an area that allows net metering, your local power utility is required to buy excess electricity from you at the retail rate. This can significantly increase your payback rate.
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