6KW Complete Offgrid Solar Kit - 15K Sol-Ark Inverter + 20.48KW OMO Stack Lithium Battery +6.6KW Solar with Mounting Rails and Wiring

The 6KW Complete Offgrid Solar Kit - 15K Sol-Ark Inverter + 20.48KW OMO Stack Lithium Battery +6.6KW Solar with Mounting Rails and Wiring delivers powerful whole-home off-grid capability with a 20.48kWh OMO heated stackable lithium battery system, a high-efficiency Sol-Ark 15K split-phase inverter, and a 6.6kW bifacial solar array. In ~4.5 sun-hour regions, the array produces up to 29,700W/day. Perfect for small homes, cabins, RV garages, shops, and pole barns using around 920kWh/month. Fully expandable with additional panels or batteries.

Specifications

• Solar Panels: 12 × 550W bifacial mono (6,600W total)

• Inverter: Sol-Ark 15K-2P-N split-phase; grid-tied compatible; supports generator input

• Battery Bank: 4 × OMO 51.2V 5.12kWh heated LiFePO₄ batteries w/ Bluetooth (20.48kWh total)

• Battery Hardware: OMO stackable combiner w/ LCD readout + OMO wheeled base unit

• Mounting: IronRidge roof-mount rails, L-feet, splices, fasteners, and bolts

• Combiner & BOS: Solar PV combiner box; wire gutter boxes; MC4 crimper tool set

• Cabling: 500′ 10AWG MC4 solar cabling; 100′ 6AWG AC generator/output cable; 20′ 2/0 AC main line

• Panel Durability: 5400 Pa snow load; 2400 Pa wind load; 30-year performance warranty

• Documentation: Installation manual included

Features

• Bifacial Panel Efficiency: Up to 25% rear-side energy gain; excellent cloudy-day output

• Split-Phase Power: 120/240V output compatible with U.S. home electrical systems

• Flexible System Design: Operates with or without batteries; supports grid-tie, hybrid, or off-grid modes

• Advanced Solar Optimization: 3 MPPT inputs maximize system harvest across multiple strings

• Backup Ready: Full generator support for hybrid configurations

• Smart Monitoring: LCD touchscreen + WiFi connectivity for live system data

• High Efficiency: 97.5% inverter efficiency; DC transformerless architecture

• Outdoor Rated: NEMA 3R enclosure for harsh weather installations

• Expandable Power: Parallel stacking of up to eight Sol-Ark units

• Fast Transfer: ~4ms switch between batteries and grid/generator

• Appliance Coverage: Supports wells, washers, fans, TVs, lights, refrigerators, freezers, electronics, and small AC systems

Maintenance

• Daily: Confirm inverter/battery status; verify panels remain unobstructed

• Weekly: Review system logs; inspect roof-mount hardware and wiring

• Annually: Clean solar panels; torque-check mounting hardware; test grounding and generator transfer

Warranty

• Sol-Ark 15K Inverter: 10-year warranty

• Solar Panels: 30-year power performance warranty

• OMO Batteries & Accessories: Covered by manufacturer warranty