SunPower's battery warranty is strong too. (Online, SunPower mentions a 40-year warranty that Maxeon offers on its premium panels, which is not available in the US.) Efficiency isn't the only factor you should take into account when buying panels - you could meet your needs with lower efficiency and cheaper panels - but a high efficiency mark and strong warranty are two strong indicators of SunPower's top-of-the-line panel. This means SunPower's panels will be generating more electricity for longer. Most manufacturers offer 25-year warranties but guarantee production closer to 85%. Solar panels degrade as they age, and SunPower's warranty says its panels will produce at 92% or more of their original capacity after 25 years. I've thoroughly researched SunPower, but this review shouldn't take the place of your own research.īesides its top efficiency mark, SunPower's Equinox system comes with one of the best warranties available. Understanding the purchasing process can help you avoid less-than-honest solar installers and find those offering the best deal. You'll want to understand which financing options best fit your needs and whether getting solar power in some other way (like community solar) makes more sense for you. You should identify your energy needs and solar potential, then compare multiple quotes from various installers, including smaller, local companies. Shopping for solar, like shopping for any major purchase, should include some careful research. One of our top three solar installers, SunPower is likely to be a good fit for anyone who wants top flight equipment. With new partnerships and products, it's attempting to cater to a wider crowd of people too.
It leads the pack in efficiency and warranty and offers strong warranties on batteries and workmanship too. SunPower, one of the largest solar installers by market share, offers some of the best solar panels for residential installations available.
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