That is assuming they never require maintenance, which the owner is fully responsible for on his/her own.
Solar is like a long term investment. After the "payback" period they are free with free power...
At current electric prices, and with the increase of fossil fuel production will possibly go lower is there really that much savings.
Cost plus interest plus maintenance plus still needing to be hook up to some type of back up power is it really worth it today to go solar?
"According to latest release from the U.S. Department of Energy – Energy Information Administration (EIA), the average residential monthly electric bill was $110.21 in 2013. The most expensive utility bill for homeowners is the electric bill, accounting for roughly 9% of expenditure on housing according to NAHB tabulations of Bureau of Labor Statistics (BLS) data on consumer expenditures.[t][/t]"
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