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

The 6KW Complete Offgrid Solar Kit - 15K Sol-Ark Inverter + 20.48KW OMO Stack Lithium Battery +6.6KW Solar with Ground Mount and Wiring is engineered for full home, cabin, or shop off-grid power. It includes a high-efficiency Sol-Ark 15K split-phase inverter, a 20.48kWh OMO heated stackable lithium battery bank, and a 6.6kW bifacial solar array capable of producing up to 29,700W/day in ~4.5 sun-hour regions. This system supports homes using around 920kWh/month and is fully expandable with additional panels or batteries.

Specifications

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

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

• 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

• Ground Mount: IronRidge ground-mount rails, top caps, splices, connectors, fasteners, bolts (uses customer-supplied 3" schedule-40 pipe)

• Balance of System: Solar PV combiner box; wire gutter boxes; MC4 crimper tool kit

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

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

• Documentation: Installation manual included

Features

• Bifacial Panel Boost: Up to 25% rear-side gain; superior cloudy/low-light performance

• Split-Phase Output: 120/240V for whole-home powering

• Versatile Operation: Works with or without batteries; grid-tie, hybrid, or off-grid modes

• 3× MPPT Inputs: Maximizes solar array efficiency across multiple strings

• Generator Support: Seamless backup integration

• Smart Controls: LCD touchscreen + WiFi monitoring

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

• Outdoor Ready: NEMA 3R rated for all-weather installations

• Expandable Power: Parallel stack up to 8 Sol-Ark inverters

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

• Appliance Capability: Runs wells, washers, fans, TVs, lighting, refrigerators, freezers, electronics, and smaller AC systems

Maintenance

• Daily: Check inverter/battery status and ensure array has no shading or debris

• Weekly: Inspect wiring, review system logs, verify ground-mount stability

• Annually: Clean solar panels, torque-check mount hardware, test generator transfer and grounding

Warranty

• Sol-Ark 15K Inverter: 10 years

• Solar Panels: 30-year performance warranty

• OMO Batteries & Components: Manufacturer warranty applies