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If a replacement is needed, who will provide the service?
If an issue is detected via the Enlighten monitoring platform, please contact Enphase Customer Support. If the issue is related to the microinverter, Enphase will provide any service required under their warranty coverage. If Enphase determines the issue is related to the panel, the service will be transferred and supported by Maxeon Solar Technologies under the appropriate SunPower panel line warranty.
How is the system managed in three-phase? How are imbalances managed?
The Enphase three-phase Q Cable allows balanced and automated power management of each phase. Alternatively, when using three single-phase cables, care must be taken to balance the phases by installing a similar number of panels on each phase.
The Envoy-S communications gateway can also provide phase imbalance monitoring to ensure authorised limits are not exceeded. The Envoy is able to manage PV power production at the microinverter level to maintain balance within set limits.
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.
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.
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.