15KW Complete Offgrid Solar Kit - 32kWh OMO 48V Freedom Series Lithium Battery + 15K Sol-Ark Inverter +15.4KW Solar with Mounting Rails and Wiring

The 15KW Complete Offgrid Solar Kit - 32kWh OMO 48V Freedom Series Lithium Battery + 15K Sol-Ark Inverter +15.4KW Solar with Mounting Rails and Wiring  is built for homeowners seeking a dependable, expandable, and high-performance off-grid system. With a robust 32kWh OMO 48V Freedom Series Lithium Battery, a powerful 15.4KW bifacial solar array, and the industry-leading Sol-Ark 15K hybrid inverter, this system produces around 69,300Wh per day in 4.5 hours of peak sun. Ideal for mid-sized homes using approximately 2,000 kWh per month, the entire kit is designed for scalability as energy needs grow.

Specifications

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

• Inverter: Sol-Ark 15K Hybrid/Off-Grid 48V Inverter with built-in MPPT charge controller

• Battery Bank: 1 × 32kWh OMO 48V Freedom Series Heated Lithium Battery (Bluetooth + LCD)

• Mounting System: Complete IronRidge roof-mount rails, splices, legs, fasteners & bolts

• Electrical Components: Combiner box, Anderson battery cable set, gutter box, 500' PV burial wire, 100' 6AWG AC/generator cable, 20' 4/0 AC main line, MC4 crimp kit, installation manual

Features

• Bifacial Double-Glass Technology: Up to 25% additional rear-side energy gain for higher production

• Weather-Ready Panels: 5400Pa snow load & 2400Pa wind load with a 30-year power warranty

• High-Capacity Lithium Storage: Heated for cold climates with real-time Bluetooth + LCD monitoring

• Expandable System: Add more solar panels or additional OMO batteries anytime

• Supports Whole-Home Loads: Refrigerators, wells, lights, freezers, electronics, washers, small A/C systems & more

• Roof-Mount Ready: Includes full IronRidge mounting hardware for secure rooftop installation

Maintenance

• Daily: Confirm inverter output and ensure panels are unobstructed

• Weekly: Check battery health via Bluetooth or LCD and visually inspect wiring

• Annually: Clean solar panels, tighten roof hardware, and complete a full system inspection

Warranty

• Solar Panels: 30-year performance warranty

• Sol-Ark 15K Inverter: 10-year warranty. Includes 120/240V split-phase output, 48V battery input, 3× MPPT, generator support, WiFi, LCD touchscreen, 97.5% efficiency, NEMA 3R outdoor rating, parallel stacking up to 8 units, and 4ms transfer time.