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Founded in 1979, Solar Oregon is a 501 (c) (3) non-profit membership organization providing public education and community outreach to encourage Oregonians to choose solar energy.
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Are solar electric systems reliable?

Modern solar electric systems have been shown to be very reliable. With no moving parts, the reliability hinges on warranties of key components.

Modern solar electric systems have been shown to be very reliable. With no moving parts, the reliability hinges on warranties of key components.

Most solar photovoltaic modules have warranties of 25 years, at which time their output is warranted to be 80% of the day they were installed. Solar photovoltaic systems are given service lifetimes between 30-50 years. 

Modern inverters also have minimum warranties of 5 years with some manufacturers increasingly offering 10 year warranties. Realistically, there will be some solar modules that fail "out of the box", but these are spotted immediately by the installer. Some inverters have also failed quickly, but are also quickly replaced. As more systems get "real experience" on rooftops, then we'll get more definite information about solar reliability.

 

 
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