How Long Will My System Last? - National Solar
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Solar FAQs
How Long Will My System Last?
March 15, 2018
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System longevity depends on climate conditions and the quality of modules installed, but typically in the PNW you can expect your modules to last 30 to 50 years or more thanks to our moderate climate.  Our OR-sourced modules are designed for the PNW and come with a warranty ranging from 25 to 30 years.

Our inverters, which invert DC power to AC, also have a 25-year warranty and should last the lifespan of your solar modules. In addition to the manufacturer’s warranties, National Solar stands behind our work with a 5-year workmanship warranty for all our solar installations.