Norwall PowerSystems is preparing to receive the first shipments of Generac’s new 28kW Home Standby Generator, which is set to become the most powerful air-cooled residential unit on the market. The launch, announced by Generac on January 21, 2025, marks a significant milestone in the evolution of home backup power systems.
As modern households grow increasingly dependent on uninterrupted power for both safety and convenience, demand for more capable standby solutions has surged. Generac’s new 28kW model automatically restores power within seconds of an outage, providing seamless support to essential appliances and comfort systems.
From 20kW to 28kW: A New Benchmark
The past decade has seen a steady climb in generator capacity for residential use, progressing from 20kW units to 22kW, then 24kW and 26kW. With the release of the 28kW unit, Generac continues to lead innovation in the home standby segment. The new model rivals the performance of liquid-cooled systems—typically used in commercial settings—while maintaining the efficiency and lighter footprint of air-cooled designs.
This advancement allows homeowners to access higher-capacity backup power without the cost or complexity associated with larger, industrial-style systems. For those investing in electrical equipment to secure their energy independence, this high-output generator represents a practical and powerful upgrade.
Upgraded Features and Smarter Control
Generac’s latest design improvements include a more powerful engine with maintenance-free hydraulic lifters and a high-efficiency Electronic Fuel and Ignition (EFI) system. The EFI enhances motor-starting capabilities and reduces overall fuel consumption. The updated automatic transfer switch features integrated surge protection in line with recent updates to the National Electrical Code.
The system’s user interface has also been overhauled. Connectivity now includes built-in cellular access as a standard feature, allowing homeowners to monitor generator performance and receive alerts through their smartphones. The new Power Zone 200 Controller replaces the Evolution model, introducing gas pressure monitoring, oil-level sensing, and detailed diagnostic capabilities.
Expected Availability and Market Leadership
Deliveries of the 28kW model are expected to begin in the third quarter of 2025. According to industry data, Generac remains the leading choice among U.S. homeowners, with approximately 70% opting for a Generac standby system over competing brands.
The new generator is expected to further strengthen Generac’s market position, providing more power, greater convenience, and smarter functionality to meet the growing needs of today’s power-reliant households.
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