17KW Complete Offgrid Solar Kit + EG4 FlexBOSS21 + 2x 14.3KW 48V EG4 Lithium Indoor Wall Battery + 17.6KW Solar with Ground Mount and Wiring

The 17KW Complete Offgrid Solar Kit + EG4 FlexBOSS21 + 2x 14.3KW 48V EG4 Lithium Indoor Wall Battery + 17.6KW Solar with Ground Mount and Wiring  with the powerful EG4 FlexBOSS21 hybrid inverter and dual 14.3kWh EG4 Lithium Indoor Wall Batteries delivers 28,600W of usable stored energy and 79,200W of daily solar production. Ideal for small cabins, RVs, garages, pole barns, and mid-sized off-grid homes, this system is fully expandable for future panels or batteries and designed for long-term reliability.

Specifications

• Solar Array: 32 × 550W bifacial mono panels (17,600W total)

• Inverter: EG4 FlexBOSS21 — 48V split-phase hybrid inverter/charger

• Battery Bank: 2 × 14.3kWh EG4 Lithium Indoor Wall Batteries (28.6kWh total)

• Mounting: Complete IronRidge ground-mount rails, top caps, connectors, fasteners, and bolts

• Wiring & BOS Components: Solar combiner box, gutter box, Anderson battery cable set, 500’ PV direct-burial wire, 100’ 6 AWG AC cable, MC4 crimp kit, installation manual

Features

• High-Efficiency Bifacial Panels: Up to 25% rear-side gain; superior weak-light performance; 5400 Pa snow / 2400 Pa wind rating; 30-year power warranty

• EG4 FlexBOSS21 Inverter: Versatile hybrid inverter/charger with 48V split-phase output and advanced off-grid capability

• Appliance Compatibility: Supports wells, washers, fans, TVs, lighting, refrigerators, freezers, electronics, and smaller AC systems

• Expandable Design: Add more panels or batteries anytime for increased capacity

• Off-Grid Ready: Designed for cabins, RVs, garages, pole barns, and locations with no grid connection

• DIY Installation: Installable with basic wiring skills; ground-mount racking is typically the most labor-intensive step

Maintenance

• Daily: Visual check of inverter status and battery health

• Weekly: Verify panel cleanliness and inspect wiring & connectors

• Annually: Full system inspection of panels, racking, wiring, inverter, and battery terminals

Warranty

• Solar Panels: 30-year power performance warranty

• Inverter & Batteries: Manufacturer warranties per included specification sheets