My employer has installed lots of Canadian Solar photovoltaic modules, and now the company is improving its already great warranty. New solar panel buyers will get a 10 year workmanship warranty (up from 6) and a 25 year linear power guarantee.
Many module manufacturers offer a 10 year 80% power output guarantee and 25 year 90% guarantee. Canadian Solar was on par with this standard, but the linear warranty guarantees that you will now have at least 97% of rated output after one year, with only 0.7% degradation each year after that. This is a great upgrade that more and more companies are offering as the reliability of photovoltaic modules is proven in the field.
Canadian Solar takes the warranty one step further and has purchased insurance from an AM Best rated insurer to guarantee that the warranty will remain in place even if the company does not.
Since Canadian Solar is currently right in the sweet spot for “dollars-per-watt” efficiency, this new warranty makes the brand a great buy at this time.