10KW Complete Offgrid Solar Kit + EG4 FlexBOSS21 + 14.3KW 48V EG4 Lithium Indoor Wall Battery + 11KW Solar with Roof Mounting Rails and Wiring

The 10KW Complete Offgrid Solar Kit + EG4 FlexBOSS21 + 14.3KW 48V EG4 Lithium Indoor Wall Battery + 11KW Solar with Roof Mounting Rails and Wiring is the ideal starter package for fully off-grid living. Designed for cabins, small to mid-sized homes, RVs, garages, and pole barns, this system delivers approximately 49,500 watts of energy production per day (based on 4.5 peak sun hours) and includes a 14.3kWh lithium battery bank (≈14,300 usable watt-hours). The system is scalable, allowing additional panels or batteries to be added as energy needs grow.

Specifications

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

• Inverter/Charger: 1 × EG4 FlexBOSS21 versatile 48V split-phase hybrid inverter/charger

• Battery Bank: 1 × 14.3kWh 48V EG4 Lithium Indoor Wall Battery

• Mounting System: Complete IronRidge roof-mount system including rails, splices, legs, fasteners, and bolts

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

Features

• Bifacial Solar Panels: Double-glass modules with up to 25% rear-side energy gain, excellent weak-light performance, and high durability (5400 Pa snow load / 2400 Pa wind load). Backed by a 30-year power warranty.

• Suitable for Many Applications: Ideal for small cabins, RVs, garages, and pole barns; capable of powering wells, washing machines, fans, TVs, lighting, refrigerators, freezers, electronics, and small AC systems.

• Energy Usage Guidance: Average U.S. home consumption is ~877kWh/month. This system supports homes using around 1,400kWh/month and can be expanded.

• Solar Production Calculation: Based on ~4.5 hours peak sun in the Midwest (less in the Northeast, more in the Southwest). Daily and monthly output estimates follow this standard method.

• Hybrid Inverter Benefits: The FlexBOSS21 provides split-phase 120/240V output, efficient battery charging, flexible load management, and advanced hybrid operation.

• DIY-Friendly Setup: Homeowners with basic wiring knowledge can install the system. Roof-mount racking is typically the most labor-intensive portion. Professional electricians can assist with final electrical connections.

Maintenance

• Daily: Check inverter/battery status and ensure panels are free of large debris.

• Weekly: Inspect wiring, roof mounts, and combiner box; verify solar output matches expected production for conditions.

• Annually: Clean solar modules, tighten all connections, inspect mounting hardware, and schedule a professional review to ensure long-term safety and performance.

Warranty

• Solar Panels: 30-year performance warranty

• Inverter & Battery: EG4 FlexBOSS21 inverter and EG4 Lithium Battery include full manufacturer warranties (refer to EG4 documentation for details)