The US-based generator company has released its PWRmicro microinverter, which integrates with the company’s energy storage, generator and power management system to provide a ‘parallel backup’ solution.
Generac is expanding its solar-plus-storage ecosystem with the launch of the PWRmicro microinverter. Each unit provides up to 820W of AC power and supports up to two 500W solar panels. It comes with a 25-year warranty, including five years of labor coverage for replacement.
The PWRmicro is available in both 240 V and 208 V configurations.
PWRmicro strings are fed into the Generac Smart Combiner, which supports up to five circuits. Each circuit can handle 12 to 14 modules, with a fully built-in Smart Combiner supporting more than 30 kW of solar capacity.
The Smart Combiner connects to the Generac Smart Disconnect Switch, which manages energy from solar panels, battery storage and a backup generator. The switch uses CT clamps to monitor the electricity demand in the home and dynamically switches between the available sources: first solar energy, then the battery and finally the generator.
When the generator is in use, it can simultaneously power the home and charge the battery, allowing it to operate near its optimal load and improving fuel efficiency. Once the battery is topped up or solar power generation resumes, the system switches to these quieter, lower emissions sources. This coordinated transfer reduces generator wear and minimizes noise and fuel consumption during extended outages.
With sufficient solar capacity and deliberate energy management, such as using an ecobee Smart Thermostat to control heating and cooling, homeowners may be able to use the generator as a peaking source, allowing for near-continuous off-grid living.
The battery system is modular, consisting of 3.0 kWh battery modules. Each PWRcell 2 battery cabinet supports up to six modules and provides up to 18 kWh of total storage capacity per cabinet.
The above hardware diagram illustrates the different configuration options, including spacer kits required for 3 or 5 module setups.
Generac lists the required components for full system integration, with datasheets available on its website Solar and battery technical documents page:
- APKEPM820 – Generac PWRmicros
- APKEAC100 – Generac smart combiner
- APKE00076 – PWRcell 2 battery cabinet
- 3–6x G0080041 – DCB battery modules
- APKE00008 – PWRcell Battery Module Remote Kit2
- APKE00075 – PWRcell 2 inverter
- APKE00067 – Generac smart disconnect switch
- Generac Home Standby Generator
Generac aims to unify its ecosystem, which includes the PWRcell battery, PWRmicroinverters with module-level monitoring and the ecobee HVAC app, to give homeowners more control over their energy consumption and backup strategy sometime in the fourth quarter of 2025.
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