EG4 FlexBOSS21 Hybrid Inverter + GridBOSS MID V3.1 Bundle | 48V Split Phase | 21kW Solar Input

Power your entire home with confidence using the EG4 FlexBOSS21 + GridBOSS MID V3.1 Bundle—a streamlined, high-performance solution designed for full energy independence without the hassle of main panel upgrades or subpanels.

This bundle combines the 21kW PV-capable FlexBOSS21 hybrid inverter with the next-gen GridBOSS microgrid controller, delivering reliable whole-home backup, remote monitoring, and simplified installation—all while saving you up to $7,500 in materials and labor.

Key Features & Benefits:

• True Whole-Home Backup – Power your entire home without upgrading your main panel or using a critical load panel.

• Massive 21kW PV Input – Run high-demand appliances, including 5-ton AC units, with support for 600V DC PV input.

• Smart Monitoring & Control – Full remote access, system monitoring, and mobile alerts with the latest EG4 software.

• Expandable System – Parallel up to 10 FlexBOSS21 units for up to 160kW total output.

• Space-Saving & Simplified Setup – GridBOSS replaces breakers, transfer switches, and load centers in one compact unit.

• 200A Service Entrance – 22 kAIC main breaker for robust utility, generator, and inverter integration.

• Hybrid-Ready – Operate off-grid, on-grid, or sell excess power back to the grid.

• Future-Proof Design – Supports both copper and properly sized aluminum wire on select breakers.

Why Choose the EG4 FlexBOSS21 + GridBOSS Bundle?

✅ Seamless System Integration – Effortlessly connects solar, battery storage, grid, and generator inputs for a fully optimized Energy Storage System (ESS).
✅ High-Powered Performance – 16kW continuous output (PV input) with 24kW surge capacity to handle heavy loads.
✅ Smart Load Management – Automates power distribution for battery longevity and efficiency.
✅ Real-Time Remote Monitoring – Adjust settings, track performance, and receive alerts via the EG4 app or web platform.
✅ Safety & Compliance – UL-certified components with advanced protections, including rapid shutdown, arc-fault detection, and ground fault monitoring.

💡 Simplify your solar and energy storage setup today with the EG4 FlexBOSS21 & GridBOSS Bundle—power, control, and reliability in one package. 🚀

User Manual / Documents:

• EG4 FlexBOSS21 Hybrid Inverter Spec Sheet
• EG4 FlexBOSS21 Hybrid Inverter User Manual
• EG4 GridBOSS MID Spec Sheet
• EG4 GridBOSS MID User Manual