A Legacy SunPower system is a solar system that was sold by the former SunPower Corporation and installed before September 30, 2024. The term “Legacy SunPower” is used to refer to these earlier systems to distinguish them from products and services offered by the current SunPower organization.

If your solar system was installed before this date, it may be referred to as a Legacy SunPower system in support information and service communications. This helps clarify which systems were installed by the former SunPower Corporation.

Enphase Energy, a global energy technology company based in Fremont, CA, is the world’s leading supplier of microinverter-based solar and battery systems that enable people to harness the sun to make, use, save, and sell their own power—and control it all with a smart mobile app. The company revolutionized the solar industry with its microinverter-based technology and builds all-in-one solar, battery, and software solutions. Enphase has shipped approximately 81.5 million microinverters, and over 4.8 million Enphase-based systems have been deployed in more than 160 countries.

Enphase began supplying SunPower with microinverters in 2018. Microinverters are integrated into SunPower solar panels, transforming DC solar panels into AC solar panels. These AC Panels are used in many Legacy SunPower system and are referred to as “powered by Enphase.” It is important to know that Enphase has not been a service provider to SunPower or its customers and has not provided maintenance services for SunPower system.

SunPower uses a monitoring platform different from Enphase, so Enphase is unable to provide immediate technical support. However, Legacy SunPower system can be modified to communicate with Enphase monitoring. This will provide you with 24x7 support directly from Enphase.

Please direct all questions regarding your Legacy SunPower system lease to your leasing company. Refer to the customer service number on your billing statement.

Yes. Enphase will honor the terms of the Enphase limited warranty for Enphase products used in Legacy SunPower system. For more information about Enphase warranties, visit our warranty page.

We cannot comment on how long the SunPower monitoring platform and mySunPower app support will continue.

You can; however, third-party monitoring apps can only monitor total energy production. They cannot provide the same level of detail as the Enphase App. If your Legacy SunPower system has an array map (which is a diagram of all of your microinverters, panels, and system components), the Enphase App offers additional per-panel monitoring and enables Enphase to troubleshoot your system remotely.

SunPower systems connect to a proprietary monitoring platform and the mySunPower app. Whether your Legacy SunPower system is powered by Enphase or not, it can be modified to communicate with the Enphase Monitoring Platform and the Enphase App.

If you are a SunPower lease or PPA customer, contact the customer service number on your billing statement.

The Enphase App is a powerful and intelligent companion to your Enphase Energy System. You can monitor your system status from anywhere and know how much energy your solar system produces. With one app, you can review your system health and performance, view panel-level production for systems with microinverters, track the power you use and put back into the grid, respond to weather events, and manage your power-hungry appliances.

Click here to watch a short video to learn more about the Enphase App.

Your Legacy SunPower system can be modified to communicate with the Enphase App and the Enphase Monitoring Platform. In addition, you can add Enphase Care as an annual or 10-year plan. To learn about Enphase monitoring, email spwrquery@enphaseenergy.com or call 510-945-6752 for assistance. 

The Enphase Monitoring Kit is compatible with Legacy SunPower systems regardless of whether they have Enphase microinverters or not. It is also compatible with SunPower storage systems that use Enphase IQ Batteries or Tesla batteries.

The Enphase Monitoring Cellular Kit includes an IQ Gateway with an integrated LTE-M1 cellular modem, CTs (current transformers), and a NEMA 3R enclosure. It connects your system to the Enphase Monitoring Platform and the Enphase App. The kit works with Legacy SunPower systems with or without Enphase microinverters. Systems with Enphase microinverters can access panel-level monitoring, while others can monitor total system production. Contact Enphase to verify eligibility for your specific site prior to purchase.

After purchase, Enphase ships the kit and schedules a field-service technician to install and configure it. Installation is available in the 50 U.S. states. We also have hardware upgrade solutions for Legacy SunPower systems powered by non-Enphase inverters or third-party batteries. Please call us to discuss your options.

The Enphase Monitoring Kit comes with two components: hardware and installation services. The hardware is covered by a five-year limited warranty and the installation services are covered by a one-year limited workmanship warranty.

Enphase Care is a solar service plan that provides ongoing support and monitoring for your Enphase system. It includes continuous system monitoring, 24/7 technical support, and $0 on-site labor for covered repairs.

Enphase monitors your system around the clock to detect potential issues and resolve many of them remotely. If an on-site visit is needed for a covered repair, a technician will be scheduled at no additional labor cost.

Enphase Care is available for homeowners with Enphase IQ Microinverters and/or IQ Batteries connected to the Enphase monitoring platform through an IQ Gateway. The plan is available as an annual or 10-year subscription.

For more information, email spwrquery@enphaseenergy.com or call (510) 945-6752.

We have many options depending on your system’s configuration ranging from transitioning your monitoring onto the Enphase App to full system and storage upgrade programs.

If you have questions about your Legacy SunPower system configuration, contact us at spwrquery@enphaseenergy.com or 510-945-6752.

While SolarBridge inverters are not covered by the Enphase warranty, we have programs specifically designed with special offers for SunPower customers needing to upgrade their SolarBridge inverters.

If you own a Legacy SunPower system (cash or loan) and have a question about the Enphase products in your system, email spwrquery@enphaseenergy.com or call 510-945-6752 for assistance. If you lease a SunPower system or have a power purchase agreement (PPA), call the customer service number on your billing statement.

Yes, the SunPower monitoring kit is now compatible with Enphase systems that include Tesla batteries. However, it’s important for homeowners to continue using the Tesla app to manage battery operations and monitor solar production during off-grid situations.