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Primo GEN24 Plus

Single-phase hybrid inverter line for North America with residential classes from 3.8 kW, now built in Indiana. The Plus version is battery-ready with backup via PV Point (a powered outlet that works whenever the sun shines, even without a battery), plus string-level shade optimization.

Works on integrations
Protocols
Roles it can fill
The core fronius integration polls the inverter's Solar API over Wi-Fi or Ethernet: PV power, grid import/export via the Fronius Smart Meter, and battery state of charge on hybrid setups, all local. On GEN24 firmware 1.14.1 and newer the Solar API ships disabled: enable it once in the inverter's web interface during commissioning. Platinum quality-scale integration in Home Assistant.

Entities in Home Assistant

Partial 2 entities via Fronius

Home Assistant's tests for this integration cover more entities than they attribute to a specific device, so this device is known to expose at least the following. Others it creates cannot be tied to this model from the test data alone.

Primary entities 1 What automations and dashboards use.
EntityTypeDevice classUnit
Backup modebinary_sensor
Diagnostics 1 Health and troubleshooting values, hidden from dashboards by default.
EntityTypeDevice classUnit
Battery standbybinary_sensor

From Home Assistant 2026.8.3's own test snapshots: every entity listed is one Home Assistant creates for this device. The list is a floor rather than the full set, because this integration's tests leave some entities unattributed to any model.

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