Enphase Energy (NASDAQ: ENPH) announced that homeowners with existing non-Enphase solar systems can now add the IQ Battery 10C and whole-home backup capability without replacing their current solar equipment. The support is available through Enphase installation partners across the United States and Canada.

The IQ Battery 10C delivers 10 kWh of usable energy and 7.08 kW of continuous power. When paired with the IQ Combiner 6C and IQ Meter Collar, the system can integrate up to 15.4 kVA of existing third-party solar and provide whole-home backup, energy management, and monitoring through the Enphase App.

The IQ Meter Collar, installed behind the utility meter, combines microgrid interconnection and energy consumption metering in a single device. It eliminates the need for a dedicated backup subpanel or extensive load rewiring. The device is currently qualified across 71 utilities in the United States and Canada.

During a power outage, the existing third-party solar system can continue producing energy and charging the IQ Battery 10C. When the battery is depleted overnight, solar production can recharge it the following day.

In California, qualifying homeowners on legacy net energy metering plans NEM 1.0 and 2.0 can add Enphase solar configured for self-consumption with battery storage while preserving existing NEM rate benefits, subject to applicable utility requirements.

"Most homes with solar still don't have battery backup, and many were built with other manufacturers' equipment," said Ken Fong, senior vice president of sales at Enphase Energy. "With the IQ Battery 10C and associated accessories, installers can add Enphase backup and monitoring to existing third-party solar systems, so homeowners get resilience and a unified view of their energy without tearing out what they already have."

Homeowners who add battery storage may also qualify for grid-services programs. Enphase cited San Diego Community Power's Solar Battery Savings program as one example where eligible customers can earn upfront and ongoing incentives.