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

The 20KW Complete Offgrid Solar Kit - 2x 32kWh OMO 48V Freedom Series Lithium Battery + 2x 15K Sol-Ark Inverter +19.8KW Solar with Ground Mount and Wiring is designed for those who demand the best. This powerful off-grid package includes a 19.8KW bifacial solar array, two Sol-Ark 15K hybrid/off-grid inverters, and two OMO 32kWh heated lithium batteries for a total of 64,000 watts of usable stored energy. With approximately 89,100 watts of daily solar production (based on 4.5 sun hours), this system is ideal for larger homes and properties that consume around 2,670 kWh per month.

The system is engineered for expansion, allowing additional batteries or solar panels to be added over time. It includes a complete ground-mount racking system, full wiring kit, and all necessary connection hardware for a professional-grade installation.

Specifications

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

• Inverters: 2× Sol-Ark 15K Hybrid/Off-Grid 48V with built-in MPPT charge controllers

• Battery Bank: 2× OMO 32kWh 48V Freedom Series Heated Lithium Batteries (Bluetooth + LCD)

• Ground Mount: Complete Iron Ridge ground-mount rail system (rails, top caps, connectors, fasteners & bolts)

• Cabling & Hardware: 2× PV combiner boxes, 1× Sol-Ark AC combiner kit, Anderson battery cable set, 500' 10AWG PV 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: Rear-side energy gain up to 25% and superior low-light output

• High Durability: 5400 PA snow load / 2400 PA wind load; backed by a 30-year power warranty

• Large Storage Capacity: 64 kWh of usable lithium energy with heating and smart monitoring

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

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

• Expandable System: Supports additional panel and battery expansion; up to 8 Sol-Ark units stackable

Maintenance

• Daily: Monitor inverter status and ensure solar panels remain clean and unobstructed

• Weekly: Inspect wiring runs, combiner boxes, and verify solar production consistency

• Annually: Inspect ground-mount hardware, grounding, connectors, and perform inverter firmware updates

Warranty

• Solar Panels: 30-year power warranty

• Sol-Ark Inverters: 10-year manufacturer warranty

Battery Specification Sheet