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How do SunPower Performance solar panels differ from SunPower® Maxeon® panel technology?
SunPower® Performance solar panels use high efficiency mono PERC cells, as opposed to SunPower's proprietary back contact technology developed for our Maxeon panels.
What is the typical cost advantage of using SunPower Performance panels?
Costs vary from project to project. Performance panels generally have a price point that is competitive with Conventional Panels.
How long does charging take?
This will depend on your panel wattage, your battery watt-hour (Wh) capacity (a measurement of storage capacity) and the weather. A 150 Wh battery will charge faster than a 500 Wh battery because the 500 Wh battery has more storage capacity, therefore requiring more time to fully charge. In addition, a 100-watt panel will charge a battery faster than a 50-watt panel exposed to the same amount of sunlight.
Charging time will be affected by weather, shade, time-of-day, age and use of battery, efficiency of the charge controller, placement of the solar panels, and other operational factors. Be sure to look on your solar-compatible battery for an estimate of charging times as well as panel-wattage compatibility, and always check the charging characteristics of the battery to ensure it’s compatible with the wattage of the panel.
For higher battery capacity (greater than 150 Wh) we recommend using a 100-watt panel. Before doing this, however, please ensure that the battery you are charging is compatible with this wattage and use a compatible charge controller.
Does Cosmetic quality affect the panel’s performance?
Every single panel is electrically tested and inspected for cosmetic criteria at the end of the production line. Regardless of the cosmetic grade, the cosmetic effects do not affect performance or reliability.
How long will a SunPower solar system last?
SunPower residential and commercial panels are backed by a 25-year limited Combined Power and Product Warranty.
What should I do in an emergency?
Should there be a fire, explosion, gas leak, system damage, or fuel spill around your system’s components, call your local emergency services. If the emergency requires you to seek safety immediately, do so first and then alert emergency personnel that you have a solar system so they can shut it down, if necessary. For assistance restarting your system after an emergency, please contact your Installer.