Enphase launches AC-coupled battery for residential and small commercial solar

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Enphase Energy, Inc., a leading provider of microinverter-based solar and battery systems, has launched the IQ Battery 5P with FlexPhase—a fully integrated AC-coupled battery storage system for residential and small commercial solar installations in India.

With an energy capacity of 5 kWh, the IQ Battery 5P is modular and expandable, allowing customers to begin with a single unit and scale up to 40 kWh as their energy needs grow. The system supports both single-phase and three-phase configurations.

Three-phase supply is commonly available in India and is particularly suited for higher-load homes and small businesses. Each 5 kWh battery delivers continuous power of up to 1.28 kW per phase in a three-phase configuration and 3.84 kW in a single-phase configuration. The battery is designed to discharge up to two times the maximum continuous power for three seconds, enabling the operation of high-power devices during a grid outage when paired with the IQ System Controller 3 INT. It utilizes lithium-iron phosphate (LFP) chemistry, which is known for its thermal stability and safety profile.

“Many of our customers live in larger homes with three-phase wiring,” said Harsha Kuntur, founder and managing director at Ecosoch Solar, an installer of Enphase products in India. “The IQ Battery 5P with FlexPhase is exactly what we need to offer reliable backup and maximize self-consumption for these households.”

“In cities like Bengaluru, homes and small businesses are increasingly asking for battery solutions that can handle three-phase loads,” said Dijo MD, director and CTO at 3rd Eye Security Systems, an installer of Enphase products in India. “Enphase is giving us the flexibility to serve both commercial and residential customers with one system.”

“Reliability is critical when it comes to energy storage in India,” said Shivam D Rai, proprietor at Shivshakti Enterprises, an installer of Enphase products in India. “The IQ Battery 5P with FlexPhase now addresses the three-phase segment with a high-performance product from a company we trust.”

The IQ Battery 5P with FlexPhase comes with a 15-year limited warranty in India. It can be paired with the IQ System Controller 3 INT, which together enable microgrid operation, remote monitoring, and efficient integration with IQ8 Microinverters. With Sunlight Jump Start, IQ8 Microinverters can restart the batteries using only sunlight after a prolonged grid outage that drains the battery. Enphase’s backup solution also supports load control and works with third-party inverters and generators for best-in-class resilience.

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