6KW Complete Offgrid Solar Kit + EG4 FlexBOSS21 + 14.3KW 48V EG4 Lithium Indoor Wall Battery + 6.6KW Solar with Roof Mounting Rails and Wiring

The 6KW Complete Offgrid Solar Kit + EG4 FlexBOSS21 + 14.3KW 48V EG4 Lithium Indoor Wall Battery + 6.6KW Solar with Roof Mounting Rails and Wiring is a scalable starter system for cabins, small homes, shops, and remote buildings. It pairs a high-output 6.6KW bifacial solar array with the versatile EG4 FlexBOSS21 48V split-phase hybrid inverter/charger and a 14.3kWh 48V EG4 Lithium Indoor Wall Battery. Expect around 29,700 watts of solar production per day based on 4.5 peak sun hours—well-suited for users around 920kWh/month, with easy headroom to expand panels or batteries later.

Specifications

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

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

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

• Mounting (Roof): Complete Iron Ridge roof-mount rails, splices, legs, fasteners, and bolts

• Balance of System: Solar combiner box, gutter box, Anderson Plug battery cable set

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

• Tools & Docs: MC4 crimp kit; installation manual

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

Features

• Bifacial Energy Gain: Rear-side harvesting up to 25% more yield in reflective or low-light conditions

• Flexible Power Hub: EG4 FlexBOSS21 hybrid design for off-grid operation with split-phase 120/240 V capability

• Everyday Loads: Supports wells, refrigerators/freezers, lighting, TVs, fans, washing machines, electronics, and smaller AC systems

• Expandable Architecture: Add more panels or additional batteries as needs grow

• DIY-Friendly: Homeowners with basic wiring knowledge can install; roof racking is the most labor-intensive step

Maintenance

• Daily: Keep panel surfaces clear of debris/shade; glance at inverter/battery status

• Weekly: Review production logs and SOC, check combiner/inverter indicators

• Annually: Inspect all roof hardware, electrical connections, and perform a thorough array cleaning

Warranty

• Solar Panels: 30-year performance warranty

• EG4 FlexBOSS21 Inverter: Manufacturer warranty included

• EG4 Lithium Battery: Manufacturer warranty included