My neighbor installed a larger system than recommended (he is an engineer and experienced in the field). Costs about $30,000. The system produces more electric than he uses. Will get back less than $500 for the first yr. He did not expect to cover his costs. I have been in discussions saying there is a 12 year payback but I think you should not expect a profit. Remember the roof will need replacement and probably the panels. Will your real estate taxes go up?
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