![]() Used equipment might not qualify for incentives Additionally, there's often no way to verify that used solar panels even work or output a certain wattage in the first place, meaning you could end up purchasing completely broken or unusable equipment. Used panels don't always have the same warranties attached, and you may leave yourself risking lower solar production or failure without any coverage. For example, SunPower offers the leading warranty for home solar panels, which guarantees 98 percent of original output by the end of the first year and 92 percent by year 25 (if installed new). Most solar manufacturers will provide both production and equipment warranties when you purchase a solar energy system, guaranteeing that your panels will remain free from defects and maintain a certain percentage of their original output. You'll want to weigh options to fit your needs best an experienced installer can help you before purchasing. On the other hand, used solar panels may be polycrystalline, with solar cells made from many silicon fragments melted together and tend to be more affordable. For this reason, you save more money over time by installing newer, more efficient, and often higher-watt solar panels instead of paying less upfront for an outdated model.įor example, most new solar panels installed today are monocrystalline, meaning they include solar cells made from a single crystal of silicon and are more efficient. Even a used panel in good condition from a few years ago will have outdated photovoltaic technology and produce electricity less efficiently than a new solar panel. The solar industry constantly develops and sells new panel technologies at competitive prices. Solar technology is continuing to improve So, under the same conditions, a damaged and less efficient solar panel will produce less electricity than a new and more efficient solar panel of the same size. Damaged panels are less efficient, meaning they don't convert sunshine as efficiently into useful electricity. Unfortunately, if your used solar panels are damaged, they won't produce as much energy, and you'll save less on your electricity bills. Many large commercial solar projects will include damaged panels from time to time, and owners will minimize financial losses by reselling them at a discounted price. ![]() But, the higher your initial system output, the more you'll save long-term with your solar energy system. ![]() This doesn't necessarily mean your used solar panels are damaged – it's just a normal part of the wear and tear process on the equipment. Used solar panels will often produce less energy than advertised because, over time, the output of a solar panel drops incrementally. There are several reasons used panels might not be the right decision for you, including: 1. While used solar panels might be a good fit for specific projects, for most solar customers, they present more problems than they're worth. ![]()
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