20KW Complete Offgrid Solar Kit - 32kWh OMO 48V Freedom Series Lithium Battery + 2x 15K Sol-Ark Inverter +19.8KW Solar with Roof Mount and Wiring

The 20KW Complete Offgrid Solar Kit - 32kWh OMO 48V Freedom Series Lithium Battery + 2x 15K Sol-Ark Inverter +19.8KW Solar with Roof Mount and Wiring is designed for those who demand top-tier off-grid performance. This system includes a powerful 19.8KW bifacial solar array, two Sol-Ark 15K hybrid inverters, and one OMO 32kWh heated lithium battery—providing 32,000 watts of usable stored energy. Producing approximately 89,100 watts per day (based on 4.5 sun hours), it is ideal for larger homes consuming around 2,670kWh monthly and is designed for future scalability with additional panels or batteries.

Specifications

• Solar Array: 36× 550W bifacial mono panels (19,800W total)

• Inverters: 2× Sol-Ark 15K Hybrid/Off-Grid Inverters (48V, built-in MPPT)

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

• Roof Mount System: Complete Iron Ridge rail set with splices, legs, fasteners, and bolts

• Cabling & Hardware: 2× solar combiner boxes, 1× AC Sol-Ark combiner kit, Anderson battery cable set, 500' 10AWG PV burial wire, 100' 6AWG AC/gen cable, 20' 4/0 AC main line, 2× gutter boxes, MC4 crimp kit, Installation manual

Features

• Bifacial Double-Glass Panels: Capture up to 25% additional rear-side energy with superior low-light performance

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

• Advanced Lithium Storage: Heated 32kWh battery with Bluetooth monitoring and LCD display

• Sol-Ark Technology: 120/240V split phase, generator support, WiFi, 3× MPPT inputs, LCD touchscreen

• High Efficiency: 97.5% inverter efficiency, DC transformerless, NEMA 3R outdoor-rated, 10-year warranty

• Expandable System: Supports additional batteries, additional solar, and parallel stacking up to 8 inverters

Maintenance

• Daily: Monitor inverter system status and ensure panels remain unobstructed

• Weekly: Inspect wiring, mount integrity, and verify system production

• Annually: Perform full system check, torque rail hardware, clean connectors, and update inverter firmware

Warranty

• Solar Panels: 30-year performance warranty

• Sol-Ark Inverters: 10-year manufacturer warranty

Battery Specification Sheet