The Fronius Primo 15.0-1 is a single-phase residential solar inverter manufactured by Austrian PV manufacturer Fronius, it is the 15kW power category variant of the Fronius Primo inverter series, the flagship Fronius inverter series for home solar systems. 

This solar inverter has a maximum power output of 15kW and a maximum efficiency of 96.7%. That means that 96.7% of the power generated by your solar panels is usable in your home.

This inverter model has a recommended input power range of 15.0-18.0kW and a maximum input power of 18kW, or 45 solar panels if each solar panel has a power output of 400W. The Fronius Primo 15.0-1 can operate on 208V and 240V, providing a maximum continuous output current of 66.1 A (208 V) or 162.5 A (240V).

The inverter has a height of 723mm (28.5”) a width of 520mm (20.1”) and a depth of 226mm (8.9”). The inverter model weighs 37.4kg or 82.5 lbs.

The inverter features Rapid DC Shutdown technology, keeping your system safe in an emergency. This model is not supportive of EV charging, or home battery compatible. The inverter is capable of operating at temperatures ranging from -40 - 131°F (-40 - 60°C), helped by a variable speed fan cooling system, and can safely operate at an altitude of 13,123 ft (4000m). The Primo 15.0-1 has an operating noise of < 65 dB, and a nighttime energy consumption of < 1 W.

Owners can interface with this Primo 15.0-1 via Wifi, USB, and ethernet, with system data accessible via the Solar.Web platform.

Fronius provides a 10-year manufacturer's warranty with the option to extend up to 15 or 20 years.