6KW Complete Offgrid Solar Kit + EG4 FlexBOSS21 Inverter + 14.3KW 48V EG4 Lithium Indoor Wall Battery + 6.6KW Solar with Ground Mount and Wiring

The 6KW Complete Offgrid Solar Kit + EG4 FlexBOSS21 Inverter + 14.3KW 48V EG4 Lithium Indoor Wall Battery + 6.6KW Solar with Ground Mount and Wiring is a powerful turnkey solution designed for cabins, small homes, garages, pole barns, and remote shops. Featuring the EG4 FlexBOSS21 hybrid 48V split-phase inverter paired with a 14.3kWh EG4 Lithium Indoor Wall Battery, this system delivers reliable off-grid performance with up to 14,300 watts of usable energy and approximately 29,700 watts of daily solar output, based on 4.5 peak sunlight hours. This kit is fully expandable for future additions of panels or batteries.

Specifications

• Solar Panels: 12× 550W bifacial double-glass solar panels (6,600W total array)

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

• Battery: 14.3kWh 48V EG4 Lithium Indoor Wall Battery

• Mounting (Ground): Complete Iron Ridge ground-mount rail system, top caps, rail connectors, fasteners, and bolts
  • Customer supplies 3" Schedule 40 pipe locally; all other components included

• Electrical Components: Solar combiner box and gutter box

• Wiring: 500′ PV direct-burial solar wire and 100′ 6-AWG AC output/input/generator cabling

• Tools & Documentation: MC4 crimp kit and installation manual

• Panel Durability: 5400 PA snow load / 2400 PA wind load with 30-year power warranty

Features

• Bifacial Solar Technology: Up to 25% additional rear-side power production; excels in cloudy, hazy, and low-light environments

• Efficient Energy Storage: 14.3kWh lithium battery offers long-lasting, stable off-grid performance

• Hybrid Power Output: FlexBOSS21 supports 120/240V split-phase operation for compatibility with common appliances

• Appliance Coverage: Runs wells, washers, fans, TVs, lights, refrigerators, freezers, electronics, and smaller AC units

• Expandable System: Add more solar panels or additional battery storage at any time

• DIY-Friendly: Homeowners with basic wiring skills can install; racking assembly is the most time-intensive step

Maintenance

• Daily: Review inverter status and ensure panels are unobstructed

• Weekly: Check solar production, battery charge levels, and system indicators

• Annually: Inspect mount structure, tighten hardware, clean panels thoroughly, and evaluate all electrical connections

Warranty

• Solar Panels: 30-year power output warranty

• EG4 FlexBOSS21 Inverter: Manufacturer warranty included

• 14.3kWh EG4 Battery: Manufacturer warranty included