Enphase Energy Unlocks Backup and Expandable Storage for Existing IQ Battery Customers Across Europe
Enphase Energy, Inc. (NASDAQ: ENPH), a leader in energy technology, made waves in the renewable energy sector with its latest announcement on July 21, 2026. The company has unveiled a significant upgrade for European homeowners who currently use second-generation Enphase IQ® Battery 3T™ and IQ® Battery 10T™ systems. This new feature allows customers to enhance their energy storage capabilities and add home backup solutions without having to replace their existing batteries.
1. Protecting Investments and Enhancing Flexibility
The recent upgrade not only preserves the integrity of the homeowner’s original investment but also facilitates the evolution of energy systems as households grow and adopt more electric appliances, such as electric vehicles and heat pumps. With the pressing demand for energy independence and reliability, this feature is designed to empower users with backup power during grid outages.
Previously, the second-generation batteries functioned in a grid-tied mode, meaning they could only store solar energy for use when the grid was operational. However, the newly introduced capability allows the IQ® System Controller to safely disconnect homes from the grid in case of an outage, ensuring that solar and battery systems continue to power essential home functions.
2. Availability Across Multiple European Nations
This innovative capability is now accessible in several countries, including Germany, the Netherlands, France, Belgium, Sweden, Switzerland, Luxembourg, Austria, Spain, Denmark, Portugal, Greece, and Finland. Homeowners seeking to upgrade have two flexible options, which can be configured by certified Enphase installers through the Enphase® Installer App:
- Adding Backup to Existing Systems: Homeowners with second-generation IQ® Batteries can incorporate an IQ System Controller to maintain power during outages. This allows single-phase homes to achieve whole-home backup, while three-phase homes can back up designated phases, based on user preference.
- Expanding Storage Capacity: Homeowners can add third-generation IQ® Battery 5P™ units alongside existing batteries to boost storage capacity. This expansion can occur whether the system remains grid-tied or is upgraded to include backup features. In three-phase homes, the IQ Battery 5P’s FlexPhase™ technology enables backup across all phases when paired with an IQ System Controller.
3. Insights from Industry Experts
Industry experts are enthusiastic about this upgrade, highlighting the evolving needs of homeowners. Theo Schmalbruch, CEO of Theo Tec GmbH, an Enphase installer in Germany, stated, "Our customers' needs keep growing as they add heat pumps and electric cars. Now we can expand the storage they already have and add backup on top, all without replacing the batteries they previously installed."
Similarly, Lionel Bertholet, co-CEO and technical director at REPV in France, noted, "French families want real energy independence, and backup power is what makes it tangible. Keeping the lights on during an outage, using an existing system that has run for years, is exactly what our customers are asking for."
4. A Vision for Future-Ready Energy Systems
Sabbas Daniel, senior vice president of sales at Enphase Energy, emphasized the long-term benefits of choosing Enphase products: "When customers choose Enphase, they are investing in more than an individual product – they are investing in a home energy platform designed to improve and expand over time. Our customers can now combine batteries from different generations, add backup, and expand capacity without abandoning their original investment."
The new capability is made possible through a software update to the IQ® Gateway, which includes the gateway embedded in the IQ System Controller. This update is compatible with most existing Enphase IQ Battery installations in Europe, and all installed batteries will remain covered under existing warranties.
5. Conclusion
As the demand for energy independence and resilient home energy solutions continues to rise, Enphase Energy's latest offering marks a significant step forward in the realm of residential energy systems. Homeowners interested in these upgrades can reach out to certified Enphase installers, who are equipped with the necessary training and guidance to optimize system configurations. With plans to expand availability across additional countries, Enphase Energy is poised to enhance the energy management landscape in Europe and beyond.
