The Enphase Energy System now offers generator support through the IQ System Controller 3G. This integration allows you to seamlessly combine solar, storage, and a compatible generator for uninterrupted power during extended grid outages. Here are the key features:
- AC Architecture: Powered by Enphase’s industry-leading microinverters, the system eliminates single points of failure, ensuring maximum power when connected to a generator.
- No Power Loss: If your system goes off-grid or the battery charge is low, the generator automatically kicks in without interruption, ensuring continuous power during critical times.
- Compatible Generators: The IQ System Controller 3G works with most AC generators installed in the United States. No external automatic transfer switch is required, and a list of compatible generators will be available in the upcoming tech brief.
- Remote Control: The system allows you to manage your generator remotely via the Enphase App. You can start/stop the generator, view real-time power flow, schedule quiet times, and even activate vacation mode—all from your smartphone.
- Dedicated DER Port: The IQ System Controller 3G has a dedicated port for connecting the generator. This port is specifically for the generator, not for solar or battery connections.
For those considering adding a generator, the IQ System Controller 3G is an ideal choice. If you’re planning to expand with additional batteries, the IQ System Controller 3 is a better fit.

