12KW Complete Offgrid Solar Kit + EG4 18kPV + 2x 14.3KW 48V EG4 Lithium Indoor Wall Battery + 13.2KW Solar with Ground Mount and Wiring

The 12KW Complete Offgrid Solar Kit + EG4 18kPV + 2x 14.3KW 48V EG4 Lithium Indoor Wall Battery + 13.2KW Solar with Ground Mount and Wiring is designed as a high-performance, expandable solution for complete off-grid living. Providing 28,600 watts of usable battery energy and approximately 59,400 watts of daily solar production (based on 4.5 hours of sunlight), this system is ideal for mid-sized homes using around 1,700 kWh per month. All components are engineered for long-term durability, scalability, and efficient off-grid operation.

Specifications

• Solar Panels: 24 × 550W bifacial double-glass panels (13,200W array)

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

• Batteries: 2 × 14.3KW 48V EG4 indoor lithium wall-mount batteries (28.6KW total)

• Mounting Hardware: Complete Iron Ridge ground-mount rails, caps, connectors, fasteners, bolts

• Combiner & Protection: Solar combiner box + gutter box

• Cabling: 500' PV direct-burial solar wire, 100' 6 AWG AC generator/input/output cable, Anderson battery cable set

• Tools Included: MC4 crimp kit

• Documentation: Complete installation manual

• Ground Mount System: Designed for 3" sch 40 pipe (customer supplies pipe locally)

• Panel Ratings: 5400 Pa snow load / 2400 Pa wind load, 30-year power output warranty

• Bifacial Technology: Up to 25% backside energy gain for superior low-light performance

Features

• Large Battery Bank: 28.6KW usable lithium storage for reliable off-grid autonomy

• High Solar Output: ~59,400 watts of daily energy based on 4.5 peak sun hours

• Hybrid Inverter: EG4 18kPV supports split-phase 120/240V, grid-tie, off-grid, or hybrid operation

• Scalable System: Add more panels or batteries at any time

• Durable Construction: Double-glass bifacial panels designed for harsh climates

• Supports Common Appliances: Capable of running wells, refrigerators, freezers, washers, lights, TVs, fans, electronics, and small AC units

• DIY-Friendly: Designed for installation by homeowners with basic wiring knowledge

• Usage Guidance: Kit supports small cabins, RVs, garages, pole barns, and mid-size off-grid homes

• Energy Estimation: Based on typical U.S. usage of ~877 kWh/month (EIA data)

• Sunlight Variability: Production varies by region (higher in southwest U.S., lower in northeast)

Maintenance

• Daily: Check inverter display and battery status indicators for normal operation

• Weekly: Inspect solar panels for dust, snow, leaves, or debris; clean as needed

• Monthly: Review wiring connections, mounting hardware, and combiner box health

• Annually: Perform a full system inspection including rails, grounding, inverter performance logs, and battery health

Warranty

• Solar Panels: 30-year performance warranty

• EG4 Batteries: Manufacturer warranty based on EG4 lithium battery policy

• EG4 18kPV Inverter: Warranty included per EG4 inverter specifications

• Mounting Hardware: Structural warranty from Iron Ridge