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Why should I limit shading from trees?
To maximize system production. Trees, plants, rooftop antennas, satellite dishes, and other obstructions can block the sunlight from reaching the panels. If any portion of the panel is shaded, your system will produce electricity at a reduced level. Should you need to trim vegetation or move objects that might shade the panels, please do so during the daylight hours and use caution.
How is using multiple microinverters more reliable than using one string inverter?
With a string inverter there is a single point of failure. If the string inverter fails, the entire array is offline. However, with a microinverter each individual PV module has its own dedicated inverter. If the microinverter (or the associated PV module) should fail. only that PV module is offline while the remainder of the system continues to operate. Enphase microinverters have a publicly stated defect rate of 0.05%, which equates to 1 in 2000. Given that the Enphase defect rate is better than most string inverters, this results in a PV installation with higher reliability and a higher overall system uptime over the life of the array.
Additionally, Enphase microinverters have an estimated useful life of more than 25 years, compared with string inverters that typically last around 10 years.
If one panel fails, does the rest of the system continue to produce energy?
If the microinverter (or the associated PV module) should fail, only that PV module is offline. The remainder of the system continues to operate as normal – a key benefit of AC modules.
How is a system fault detected?
All AC module installations must be Internet connected for the monitoring to receive the 25-year microinverter warranty. This Internet connection reports data to the Enphase monitoring platform, Enlighten on a per microinverter/module basis. The performance of each microinverter and module is visible to the installer via Enlighten and alerts are provided for any faulty equipment, such as an under-performing PV module or a faulty microinverter.
What is the advantage of the AC modules in comparison to optimizers?
SunPower AC solutions offer higher yield, easier and faster installation, and greater flexibility. There are also other benefits such as reliability, shading advantages and low-light power responses.
If an issue is identified, does the installer need to replace the entire panel?
No, the microinverter is detachable from the PV module so each component can be serviced separately.
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