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My average sized house will take at least 15 years to break even with solar.
Plus I was estimated to need a new roof in less than 10 years, and that was going to be an added expense.
It depends on the climate in your area, how your house is oriented, trees in close proximity, angle of the roof...lots of factors.
It still does not make economic sense for me.
When it DOES make economic sense, I will be one of the first to sign up.
My house was 18,000 and that was complete done deal. When i need to replace the asphalt shingles in 35 years plus or minus the system does no come off or even moved as the shingles no subject to sun do not deteriorate.
"Utilities argue that because transmission costs—for line maintenance, tree trimming, and emergency crews, for instance—have traditionally been paid by the kilowatt-hour, solar customers aren’t contributing their fair share. Without changes such as fixed charges for distribution and transmission, paying lower prices for surplus electricity generated by homes with solar panels, or assessing monthly demand charges to solar customers, “everyone else subsidizes the solar customer,” he says."
How Utilities Are Fighting Back on Solar Power - Consumer Reports