2027 Briggs & Stratton EG4® FlexBOSS21 Inverter 

2027 Briggs & Stratton EG4® FlexBOSS21 Inverter 

The EG4® FlexBOSS21 is a split phase, all-in-one, hybrid inverter designed for the residential and small commercial markets. With a 21kW usable PV (DC) input, the FlexBOSS21 provides high power output, generating 12kW of AC power during non-sunlight conditions and a full 16kW AC with solar PV gain. It is a powerful and versatile inverter which can feed-through 90 Amps of utility power from the grid at 120/240 VAC. The FlexBOSS21 is also EMP-hardened, ensuring reliable performance during Electromagnetic Pulse (EMP) events. Built for versatility, the FlexBOSS21 seamlessly integrates with Briggs & Stratton® SimpliPHI® 6.6 Battery System, including optimal pairing with EG4 GridBOSS system.

Features May Include: 

Industry-Leading Capacity

• Highest PV input on the market.

Flexible Scalability

• Expands easily from small to large systems, 50-160 Amps (equivalent to full 200A service). 

Affordable Solution

• Cost-effective for any system size.

Compact Design

• Small footprint for the power and flexibility offered. 

Enhanced Power Output 

• Delivers superior performance, providing more power for higher energy demands.

Complete System Compatibility

• Easily integrates with Briggs & Stratton SimpliPHI 6.6 Battery System and pairs perfectly with GridBOSS systems for a seamless solar energy solution. 

EMP-Hardened

• Ensures reliable operation during Electromagnetic Pulse (EMP) events.