15KW Complete Offgrid Solar Kit - 15K Sol-Ark Inverter + 30.72KW OMO Stack Lithium Battery +15.4KW Solar with Mounting Rails and Wiring

The 15KW Complete Offgrid Solar Kit - 15K Sol-Ark Inverter + 30.72KW OMO Stack Lithium Battery +15.4KW Solar with Mounting Rails and Wiring is a complete, scalable solution designed for full off-grid living. Featuring a 30.72kWh heated OMO stackable lithium battery bank and a 15.4KW bifacial solar array, this system produces approximately 69,300 watts per day in 4.5 peak sun hours. It is ideal for mid-sized homes consuming around 2,000 kWh/month and can be expanded with additional batteries or panels as power needs grow.

Specifications

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

• Inverter: Sol-Ark 15K-2P-N pure sine split-phase inverter (grid-tie compatible, generator ready)

• Battery Bank: 6 × OMO 51.2V 5.12kWh heated stackable lithium batteries w/ Bluetooth (30.72kWh total)

• Battery Hardware: OMO stackable combiner with LCD + OMO wheeled base unit

• Roof Mount System: Complete IronRidge roof-mount package (rails, splices, L-feet, fasteners, bolts)

• Electrical Components: Solar PV combiner box, 500’ 10AWG MC4 solar cable, 100’ 6AWG AC/generator cable, 20’ 2/0 AC main line, gutter boxes, AC combiner kit, MC4 crimper tool set, installation manual

Features

• Bifacial Double-Glass Technology: Generates up to 25% additional backside energy and performs exceptionally in cloudy or low-light conditions

• Heavy-Duty Panel Durability: 5400Pa snow load and 2400Pa wind load; backed by a 30-year performance warranty

• Large-Capacity Storage: 30.72kWh heated lithium battery bank provides excellent backup duration for off-grid homes

• Wide Appliance Compatibility: Suitable for wells, washers, fans, TVs, lighting, refrigerators, freezers, electronics, and small AC systems

• Fully Expandable: Add more solar panels or batteries at any time

Maintenance

• Daily: Verify inverter status and ensure panels are clean and unobstructed

• Weekly: Review battery health via Bluetooth and inspect roof mount integrity

• Annually: Clean all solar panels, tighten roof-mount hardware, and perform a full electrical system check

Sol-Ark 15K Inverter Specs

• Output: 120/240V split phase pure sine wave

• Battery Compatibility: Works with or without batteries (48V lithium or lead acid)

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

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

• Controls & Connectivity: LCD touchscreen, WiFi connectivity, generator support, transformerless design

• Durability: NEMA 3R outdoor-rated enclosure; 97.5% efficiency; 10-year warranty

• Advanced Performance: Parallel stacking up to 8 units; 4ms automatic transfer from grid to battery