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

The 15KW Complete Offgrid Solar Kit - 32kWh OMO 48V Freedom Series Lithium Battery + 15K Sol-Ark Inverter +15.4KW Solar with Ground Mount Rails and Wiring  is designed for homeowners seeking dependable off-grid performance with the flexibility to expand over time. Featuring a powerful 32kWh OMO 48V Freedom Series Lithium Battery, a high-output 15.4KW bifacial solar array, and the industry-leading Sol-Ark 15K hybrid inverter, this system produces up to 69,300Wh per day with 4.5 peak sun hours. It is ideal for mid-sized homes consuming around 2,000 kWh per month and includes complete ground-mount rails and wiring for a full installation.

Specifications

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

• Inverter: Sol-Ark 15K hybrid/off-grid 48V inverter with built-in MPPT controller

• Battery Bank: 1 × 32kWh OMO Freedom Series heated lithium battery with Bluetooth + LCD

• Mounting System: Full IronRidge ground-mount system (rails, caps, connectors, fasteners, bolts)

• Electrical Components: Solar combiner box, Anderson plug battery cable set, gutter box, 500' PV 10AWG wire, 100' 6AWG AC/generator cable, 20' 4/0 AC main line, MC4 crimp kit, installation manual

Features

• High-Efficiency Bifacial Panels: Double-glass construction boosts rear-side gain up to 25% for superior energy harvest

• Extreme Durability: Panels rated for 5400Pa snow load and 2400Pa wind load with a 30-year power warranty

• Large-Capacity Lithium Storage: OMO heated lithium battery ensures reliable performance even in cold climates

• Ground-Mount Ready: Built around a 3" schedule-40 pipe system (customer sources pipe locally)

• Fully Expandable: Add more solar panels or additional OMO batteries anytime to increase system capacity

• Whole-Home Support: Capable of powering wells, refrigerators, freezers, washers, electronics, lighting, and more

Maintenance

• Daily: Ensure the solar array is free from debris and monitor inverter output

• Weekly: Inspect battery LCD/Bluetooth readings and verify system connections

• Annually: Tighten ground-mount hardware, clean panels, and perform full electrical inspections

Warranty

• Solar Panels: 30-year performance warranty

• Sol-Ark 15K Inverter: 10-year warranty. Features include 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.