I live in TV and installed PV solar panels a little over a year ago. In the first year of operation, my 11.7KW system produced 17,673KWH of electricity. That electricity was worth 9.9cents/KWH or $1750. My system is returning an 8% IRR assuming steady utility rates, 20 year life, and no salvage value. In order to get that kind of return, two things are required: (1) the panels must face south, (2) you will have to work very hard to find an installer to do the job at a price that gives that kind of return. Specifically, you will need a price of under $2/watt installed before tax credits.
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