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

The 15KW Complete Offgrid Solar Kit - 15K Sol-Ark Inverter + 15.36KW OMO Stack Lithium Battery +15.4KW Solar with Mounting Rails and Wiring  is engineered for homeowners seeking a powerful, scalable off-grid solution. This system includes a 15.36kWh heated OMO lithium stack battery bank and a 15.4KW bifacial solar array, delivering approximately 69,300 watts of daily production with 4.5 peak sun hours. It is ideal for mid-sized homes consuming roughly 2,000 kWh/month and is built for future expansion with more panels or batteries.

Specifications

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

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

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

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

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

• Cabling & Components: 500' MC4 solar cabling, 100' 6AWG AC cable, 20' 2/0 main line, gutter boxes, AC combiner kit, MC4 crimper set, installation manual

Features

• Bifacial Solar Technology: Double-glass design captures up to 25% additional backside power for superior low-light performance

• High Durability: 5400Pa snow load & 2400Pa wind load; backed by a 30-year power warranty

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

• Home Power Capabilities: Runs wells, washers, fans, TVs, lighting, refrigerators, freezers, electronics, and small AC systems

• Roof-Ready: Complete IronRidge mounting system included for secure installation

Maintenance

• Daily: Check inverter status; verify solar panels remain unobstructed

• Weekly: Review power output, inspect wiring, ensure proper ventilation around inverter & batteries

• Annually: Clean panels, tighten mounting hardware, inspect battery terminals and inverter connections

Inverter Specifications

• Output: 120/240V split phase

• Battery Support: Operates with or without batteries (48V lithium or lead-acid)

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

• MPPT: Integrated MPPT charge controller with 3 independent inputs

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

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

• Advanced Capabilities: Stack up to 8 units; 4ms transfer time from grid to battery