10KW Complete Offgrid Solar Kit + EG4 18kPV + 4.3KW 48V EG4 Lithium Indoor Wall Battery + 11KW Solar with Roof Mounting Rails and Wiring

The 10KW Complete Offgrid Solar Kit + EG4 18kPV + 4.3KW 48V EG4 Lithium Indoor Wall Battery + 11KW Solar with Roof Mounting Rails and Wiring is a powerful, scalable off-grid solution designed for cabins, small to mid-sized homes, garages, RVs, and pole barns. With an 11,000W bifacial solar array producing up to 49,500 watts per day (based on 4.5 peak sun hours) and a 14.3kWh lithium battery bank (14,300Wh usable), this system is ideal for properties using around 1,400kWh per month and can be expanded over time with additional panels or batteries.

Specifications

• Solar Array: 20× 550W bifacial double-glass solar panels (11,000W total array)

• Inverter: 1× EG4 18kPV 48V split-phase hybrid inverter/charger

• Battery Bank: 1× 14.3kWh 48V EG4 Lithium Indoor Wall Battery (approximately 14,300Wh usable energy)

• Mounting System: Complete IronRidge roof-mounting rail kit including rails, splices, legs, fasteners, and bolts

• Wiring & Components: Solar combiner box, gutter box, Anderson plug battery cable set, 500' PV direct-burial solar wire, 100' 6AWG AC output/input/generator cabling, MC4 crimp kit, and installation manual

Features

• Bifacial Double-Glass Panels: Rear-side energy gain up to 25%, improved weak-light performance, and robust 5400 Pa snow load / 2400 Pa wind load, backed by a 30-year power warranty

• High-Efficiency Lithium Storage: 14.3kWh 48V EG4 indoor wall battery provides reliable off-grid storage for essential loads and daily use

• Off-Grid Power for Everyday Use: Suitable for small cabins, RVs, garages, and pole barns; can run wells, washing machines, fans, TVs, lights, refrigerators, freezers, electronics, and smaller AC systems

• Expandable System: All DIY solar kits are expandable; additional panels or batteries can be added as power needs grow. Production estimates are based on ~4.5 peak sun hours (less in the Northeast, more in the Southwest)

• Hybrid Inverter Performance: EG4 18kPV hybrid inverter/charger delivers efficient split-phase 120/240V output and supports flexible charging and load management

• DIY-Friendly Installation: Designed for homeowners with basic wiring knowledge; roof racking is typically the most labor-intensive step. Electricians can be consulted for final connections and code compliance

Maintenance

• Daily: Check inverter and battery status; ensure panels are clear of shading and debris

• Weekly: Visually inspect roof-mount hardware, wiring runs, and combiner box; compare actual production with expected sun-hour output

• Annually: Clean solar panels, tighten mounting and electrical connections, and have a qualified professional review system performance and safety

Warranty

• Solar Panels: 30-year performance warranty

• Inverter & Battery: Covered under EG4 manufacturer warranties (see EG4-18kPV and lithium battery spec sheets for full details)