EG4 FlexBOSS18 Hybrid Inverter
The EG4 FlexBOSS18 Hybrid Inverter delivers professional-grade performance at an accessible price point — the perfect choice for both installers and DIY enthusiasts seeking a powerful, cost-effective hybrid solar solution.
Engineered for maximum efficiency and energy savings, the FlexBOSS18 provides 13kW continuous output (with PV), supports up to 18kW maximum solar input, and offers 10kW battery-only output. Whether you’re looking to reduce your grid dependence or build a fully off-grid system, this inverter delivers exceptional performance, flexibility, and value.
Key Features
High Power Output:
13kW continuous output with PV, 18kW solar input capacity, and 10kW battery-only output for strong, consistent performance.
Versatile Compatibility:
Seamlessly integrates with EG4 batteries and pairs effortlessly with the EG4 GridBOSS MID for enhanced system functionality.
Certified & Reliable:
UL1741 certified for safety, reliability, and compliance with industry standards.
Cost-Effective Hybrid Solution:
Delivers professional-grade hybrid capabilities at an affordable entry point.
Flexible Installation:
Designed for both residential and commercial applications, with easy setup and streamlined system integration.
Seamless Integration with EG4 GridBOSS MID
The FlexBOSS18 pairs perfectly with the EG4 GridBOSS MID, creating a unified energy management system that simplifies installation and enhances performance. This combination:
Reduces installation costs and complexity
Eliminates the need for additional breakers and transfer switches
Enables time-of-use optimization, load shifting, and backup power prioritization
Together, the FlexBOSS18 and GridBOSS MID give you complete control over your energy system — maximizing efficiency, lowering grid reliance, and optimizing power distribution.
Why Choose the EG4 FlexBOSS18?
The FlexBOSS18 stands out with higher power output, expanded PV capacity, and advanced hybrid features — all at an accessible price point. Backed by UL1741 certification, it ensures compliance with strict safety standards and delivers dependable performance for both grid-tied and off-grid applications.
Elevate Your Energy System
Experience the power, flexibility, and affordability of the EG4 FlexBOSS18 Hybrid Inverter. Whether upgrading an existing setup or starting fresh, the FlexBOSS18 provides the performance, reliability, and scalability you need to take full control of your energy future.