The 70KW Complete Offgrid Solar Kit + 4x 15K Sol-Ark Inverter 

70KW Complete Offgrid Solar Kit + 4x 15K Sol-Ark Inverter + 32kWh OMO 48V Freedom Series Lithium Battery +70.4KW Solar with Roof Mount and Wiring

+ 32kWh OMO 48V Freedom Series Lithium Battery +70.4KW Solar with Roof Mount and Wiring is built for large homes, farms, and high-demand off-grid properties. With a 70.4 kW bifacial solar array and Sol-Ark hybrid inverters, it can produce about 316,800 Wh per day (at ~4.5 peak sun hours) and is designed to scale with additional panels or batteries over time.

Specifications

• Solar Panels: 128 × 550W bifacial mono panels (70,400W array)

• Inverters: 4 × Sol-Ark 15K 48V hybrid/off-grid inverters with built-in MPPT

• Battery Storage: 1 × OMO 32 kWh 48V Freedom Series heated lithium battery (Bluetooth & LCD)

• Mounting System: Complete Iron Ridge ROOF mount (rails, splices, L-feet, fasteners, bolts)

• Included Components: 4 × PV combiner boxes, MC4 crimper tool set, 2 × 500' 10AWG MC4 solar cable, 2 × 100' 6 AWG AC cable, 2 × 20' 2/0 AC main line, 4 × wire gutter boxes, AC combiner box kit (multi-Sol-Ark), Anderson battery cable set, installation manual

Features

• Bifacial Double-Glass Panels: Up to 25% rear-side gain; high wind/snow ratings (5400 PA snow / 2400 PA wind)

• Hybrid Operation Modes: Grid-tie, off-grid, or hybrid; works with or without batteries; generator support

• Advanced MPPT: 3 × MPPT inputs per Sol-Ark 15K for optimized harvest

• Smart & Durable: LCD touchscreen, Wi-Fi connectivity, DC transformerless design, NEMA 3R outdoor rating, 97.5% efficiency

• Scalable Power: Parallel stacking up to 8 Sol-Ark units for future growth

• Fast Transfer: ~4 ms transfer time between battery and grid/generator power

Maintenance

• Daily: Review inverter status and battery SOC on the LCD/app

• Weekly: Visual inspection of wiring, combiner boxes, and roof-mount hardware

• Annually: Clean panels, torque-check mounts, and run full system diagnostics

Warranty

• Solar Panels: 30-year performance warranty

• Sol-Ark Inverters: 10-year manufacturer warranty