Fronius and Renon Secure CEC Listing for Fronius GEN24 Plus and Renon Xtreme HV 1.0

Fronius and Renon are pleased to announce that Fronius GEN24 Plus solar inverters (3.8-10.0 kW) and the Renon Xtreme HV 1.0 battery energy systems (9.6, 14.4, and 19.2 kWh) have been listed by the California Energy Commission as a paired residential storage solution. The listing supports California installers working to reduce friction in project permitting and interconnection, while also reinforcing that the system meets the state’s efficiency and performance expectations. 

For homeowners and installers, the result is a more confident path to specifying a high-voltage solar + storage system built for residential use and designed to integrate cleanly into modern PV applications. The pairing gives solar professionals another option when they need a vetted storage configuration that can broaden system design choices without sacrificing reliability. 

The Renon Xtreme HV 1.0 was developed to deliver high-voltage residential storage in a compact, modular format. Its operating range of 192–384 V helps reduce transmission losses, while its stackable architecture supports two to four battery modules and is designed to improve system flexibility through dynamic current equalization. Built-in smart management, Wi-Fi connectivity, an EMS, and a battery optimizer rated for up to 8,000 cycles makes it a strong fit for homeowners seeking long-term energy storage performance. 

When a Renon Xtreme HV 1.0 is paired with the Fronius GEN24 Plus, the system supports a closed-loop DC-coupled architecture that helps deliver efficient energy flow and dependable backup-ready performance. While the inverter and battery manage the energy, the Fronius EBLU device acts as an intelligent bridge to automatically transfer to backup power should a grid outage or weather related event where there’s a loss in power would occur (see all 3 components in the supplied picture).  Renon Smart and Renon Cloud add monitoring and management tools that allow users to track system performance and energy production or consumption in real time. The Renon Xtreme HV 1.0 is certified to IEC 62619, UN 38.3, UL 1973, and UL 9540. 

The Fronius GEN24 Plus brings its own set of practical advantages to the pairing, including UP.storage compatibility, active cooling, Dynamic Peak Manager shade management, and built-in PV Point backup power. Homeowners can also use Fronius Solar.start and Solar.web tools to commission and manage battery-related functions and energy optimization. Fronius Solar.web Premium includes the Energy Cost Assistant, which provides automated battery charging and discharging strategies based on weather forecasts and current pricing. The inverter is certified to UL 1741 SA, UL 1741 SB, UL 1699B, UL 9540, and IEEE 1547-2018 requirements. 

“California installers need options that are both technically sound and easy to specify, and this CEC listing ensures a seamless permitting process for installers,” said Renon USA Owner & CEO, Paul Buckwalter. “The GEN24 Plus and Xtreme HV 1.0 pairing gives the California market a high-voltage storage solution that is efficient, flexible, and ready for residential deployment,” he added. 

“Fronius is excited to expand our partnership with Renon through a CEC-listed pairing that supports installers and homeowners looking for a dependable solution,” said Chris Connell, Head of Solutions for Fronius USA. “Together, we’re giving customers a practical pathway to high-performance residential energy storage,” he said.  

The official CEC listings can be viewed here: Solar Equipment List - CA Energy Commission, Solar Equipment List - CA Energy Commission

Fronius | https://www.fronius.com/en

Renon Power | https://www.renonpower.com/