15KW Complete Offgrid Solar Kit - 3x 32kWh OMO 48V Freedom Series Lithium Battery + 15K Sol-Ark Inverter +15.4KW Solar with Ground 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 Ground Mount and Wiring  is engineered for homeowners who need exceptionally high energy storage and reliable, long-term off-grid independence. Featuring three OMO 32kWh 48V Freedom Series Lithium Batteries for a massive 96,000Wh usable capacity, a 15.4KW bifacial solar array, and the industry-leading Sol-Ark 15K Hybrid Inverter, this system produces approximately 69,300Wh per day based on 4.5 peak sun hours. It is ideal for mid-sized to larger homes using around 2,000 kWh per month and is fully scalable for 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 (Bluetooth + LCD)

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

• Wiring & Components: Solar combiner box, 3× Anderson battery cable sets, gutter box, 500' PV burial cable, 100' 6AWG AC/generator cable, 20' 4/0 AC main line, MC4 crimp kit, installation manual

Features

• Bifacial Double-Glass Panels: Up to 25% additional rear-side energy capture for superior performance

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

• High-Capacity Lithium Storage: Heated for cold climates, with Bluetooth monitoring & LCD display

• Expandable Power System: Add more panels or batteries as your home energy demands grow

• Ground-Mount Ready: Built for 3" SCH 40 pipe (customer supplied); all other hardware included

• Whole-Home Capability: Supports appliances, lighting, pumps, refrigerators, and essential loads with ease

Maintenance

• Daily: Verify inverter production and ensure panels remain unobstructed

• Weekly: Inspect battery health, wiring, and system connections

• Annually: Clean solar panels, check ground-mount hardware, and perform 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 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 transfer time.