Battery Energy Storage System Plugs into the Smart Grid

The all-in-one, grid-connected battery brings Enphase's distributed architecture to commercial and industrial energy storage.

Lee Goldberg

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Electronic Design

Oct. 13, 2026

2 min read

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Enphase Energy introduced its first first commercial battery storage system. The all-in-one, grid-connected IQ Battery C80 will deliver 80 kWh of usable energy capacity and up to 40 kVA of continuous power in a single, compact enclosure, with battery packs and microinverters fully integrated.

Available in capacities between 80 kWh to 2 MWh, the system is engineered for commercial, industrial, and multifamily applications where it can support demand charge management, time-of-use shifting, solar self-consumption, and other smart grid services and even participate in virtual power plants (VPPs). All models use active air cooling without the need for liquid cooling or external HVAC, helping simplify installation and improve reliability.

Its modular architecture will allow customers to right-size projects and expand storage capacity over time, helping customers manage energy costs and maximize the value of onsite solar generation.

The IQ Battery C80 will be available in two three-phase configurations: a 120Y/208 V model delivering 33 kVA for multifamily properties and smaller commercial buildings, and a 277Y/480 V model delivering 40 kVA for larger commercial and industrial applications. Both are based on the lithium iron phosphate (LFP) chemistry, deliver greater than 90% AC round-trip efficiency, and operate across an ambient temperature range of -22°F to 131°F.

Shipments of the IQ Battery C80 are expected to begin in the first half of 2027.

Contributors:

James Morra

About the Author

Lee Goldberg

Contributing Editor

Lee is the author of the popular PowerBites series.

Lee Goldberg is a self-identified “Recovering Engineer,” Maker/Hacker, Green-Tech Maven, Aviator, Gadfly, and Geek Dad. He spent the first 18 years of his career helping design microprocessors, embedded systems, renewable energy applications, and the occasional interplanetary spacecraft. After trading his ‘scope and soldering iron for a keyboard and a second career as a tech journalist, he’s spent the next two decades at several print and online engineering publications.

Lee’s current focus is power electronics, especially the technologies involved with energy efficiency, energy management, and renewable energy. This dovetails with his coverage of sustainable technologies and various environmental and social issues within the engineering community that he began in 1996. Lee also covers 3D printers, open-source hardware, and other Maker/Hacker technologies.

Lee holds a BSEE in Electrical Engineering from Thomas Edison College, and participated in a colloquium on technology, society, and the environment at Goddard College’s Institute for Social Ecology. His book, “Green Electronics/Green Bottom Line - A Commonsense Guide To Environmentally Responsible Engineering and Management,” was published by Newnes Press.

Lee, his wife Catherine, and his daughter Anwyn currently reside in the outskirts of Princeton N.J., where they masquerade as a typical suburban family.