SolarEdge home battery joins Sunnova energy-as-a-service offering


Inverter and battery provider SolarEdge announced it has found a new partner in Sunnova, a residential and commercial energy-as-a-service (EaaS) provider.

Sunnova’s EaaS offering is a holistic energy management system that integrates solar, energy storage, electric vehicle charging, standby generators, smart appliances, grid services, and home climate controls. Now, SolarEdge’s home battery will be offered alongside the full set of Sunnova EaaS products and services.

The home battery offers stability in an environment of energy price inflation and volatility, grid instability, and continually shifting rooftop solar utility net-metered credit payment calculations.

SolarEdge’s battery is characterized by its DC-coupled design, which requires just one power conversion when consuming solar-generated electricity. Traditional AC-coupled batteries require three power conversions, losing efficiency each time the power is shifted from DC to AC and back again.

The company said this efficiency adds up over time, and over the course of a year, it can lead to 10 full days of saved energy when compared to a typical 10 kW solar array in self-consumption mode (no battery). The battery is robust enough to provide continuous power, allowing users to consume stored power for large devices like washing machines and HVAC systems for longer periods of time.

Each battery comes equipped with 9.7 kWh of backup capacity, and up to nine batteries (three per inverter) can be stacked to achieve an 87.3 kWh backup system with 30 kW of continuous power. The battery has a round-trip efficiency of 94.5%. It is capable of being charged while simultaneously exporting power to the grid for utility bill credits.

“Homeowners’ energy demands are increasing at a time when utility bills are skyrocketing and grid instability is becoming more frequent,” said William Berger, chief executive of Sunnova. “[The partnership] marks an important next step forward in our mission to deliver highly robust, industry-leading solutions that meet homeowner demand to live in a more energy-efficient and energy-independent way.”

The battery is compliant with the UL9540A advanced safety standard. SolarEdge said the battery was designed to meet installer demand for a residential solution that is fast and cost-effective to install. The battery cabinet layout features accessible cable management and wireless communication to speed up installation and decrease commissioning times.

Sunnova (NOVA) and SolarEdge (SEDG) are among the largest publicly traded solar industry companies on the New York Stock Exchange.

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