15KW Complete Offgrid Solar Kit - 3x 32kWh OMO 48V Freedom Series Lithium Battery + 15K Sol-Ark Inverter +15.4KW Solar with Roof Mount and Wiring

The 15KW Complete Offgrid Solar Kit - 3x 32kWh OMO 48V Freedom Series Lithium Battery + 15K Sol-Ark Inverter +15.4KW Solar with Roof Mount and Wiring is engineered for homeowners seeking a powerful, long-term, and scalable off-grid energy solution. This robust package includes three OMO 32kWh 48V Freedom Series Heated Lithium Batteries for a massive 96,000Wh usable storage capacity, paired with a high-output 15.4KW bifacial solar array and the industry-leading Sol-Ark 15K Hybrid Inverter. Producing approximately 69,300Wh per day based on 4.5 peak sun hours, this system is ideal for mid-sized homes consuming around 2,000 kWh per month and is designed for seamless future expansion.

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: 3 × 32kWh OMO 48V Freedom Series Heated Lithium Batteries with Bluetooth & LCD display

• Mounting System: Full IronRidge roof-mount kit (rails, splices, legs, fasteners & bolts)

• Wiring & Components: Solar combiner box, 3× Anderson battery cable sets, 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 Panels: Capture up to 25% additional rear-side energy for higher daily output

• High Durability: Rated for 5400Pa snow load & 2400Pa wind load with a 30-year power warranty

• Heated Lithium Batteries: Designed for cold climates with Bluetooth monitoring & LCD system readout

• Fully Expandable: Add panels or batteries anytime as energy needs increase

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

• Whole-Home Support: Power appliances, refrigeration, pumps, computers, lights, and essential loads with ease

Maintenance

• Daily: Monitor inverter performance and ensure solar panels remain unobstructed

• Weekly: Check battery health, wiring points, and system readings

• Annually: Clean solar panels, tighten roof-mount hardware, and conduct 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, 9kW continuous/16kW surge capability, 3× MPPT inputs, generator support, WiFi, LCD touchscreen, transformerless design, 97.5% efficiency, NEMA 3R outdoor rating, parallel stacking up to 8 units, and ultra-fast 4ms automatic transfer time.