15KW Complete Offgrid Solar Kit - 15K Sol-Ark Inverter + 15.36KW OMO Stack Lithium Battery +15.4KW Solar with Ground Mount and Wiring

The 15KW Complete Offgrid Solar Kit - 15K Sol-Ark Inverter + 15.36KW OMO Stack Lithium Battery +15.4KW Solar with Ground Mount and Wiring  is designed as a complete, scalable power system for full off-grid homes. With a 15.36kWh heated OMO lithium battery bank and a 15.4KW bifacial solar array, this package delivers approximately 69,300 watts of energy per day based on 4.5 sun hours. Ideal for mid-sized homes using around 2,000 kWh/month, this kit is engineered for performance, reliability, and future expandability.

Specifications

• Solar Array: 28 × 550W bifacial mono panels (15,400W total)

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

• Battery System: 3 × OMO 51.2V 5.12kWh stackable heated batteries (15.36kWh total) with Bluetooth

• Battery Combiner: OMO stackable combiner with LCD display + OMO wheeled base

• Mounting System: IronRidge ground-mount rails, top caps, connectors, fasteners, bolts

• Wiring & BOS: Solar PV combiner box, AC combiner kit, 500' MC4 10AWG array cabling, 100' 6AWG AC cable, 20' 2/0 AC main line, gutter boxes, MC4 crimp tool set, installation manual

Features

• Bifacial Double-Glass Panels: Capture up to 25% extra rear-side energy; excellent performance in cloudy or low-light conditions

• Extreme Durability: 5400Pa snow load & 2400Pa wind load; 30-year power warranty

• Expandable System: Add more OMO batteries or additional solar panels as your energy needs grow

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

• Ground Mount Ready: Uses 3" SCH40 pipe (customer-supplied); all other components included

Maintenance

• Daily: Check inverter status and ensure panels remain unobstructed

• Weekly: Inspect wiring, verify production readings, ensure proper airflow around inverter & batteries

• Annually: Clean solar array, tighten mounting hardware, inspect battery & inverter connections

Inverter Specifications

• Output: 120/240V split phase

• Battery Compatibility: Works with or without batteries; supports 48V lithium & lead-acid

• Power Rating: 9kW continuous, 16kW surge (10 sec)

• MPPT: Built-in charge controller with 3 independent MPPT inputs

• Features: Generator support, LCD touchscreen, WiFi connectivity, DC transformerless design

• Efficiency & Build: 97.5% efficiency, NEMA 3R outdoor-rated, 10-year warranty

• Advanced: Parallel stack up to 8 units; 4ms transfer time from battery to grid