25KW Complete Offgrid Solar Kit - 15K Sol-Ark Inverter + 15.36KW OMO Stack Lithium Battery +26.4KW Solar with Mounting Rails and Wiring

The 25KW Complete Offgrid Solar Kit - 15K Sol-Ark Inverter + 15.36KW OMO Stack Lithium Battery +26.4KW Solar with Mounting Rails and Wiring pairs a high-output 26.4KW bifacial solar array with two Sol-Ark 15K split-phase inverters and a 15.36kWh heated OMO lithium stack. Designed for complete off-grid homes, it produces about 118,800 watts per day at 4.5 peak-sun hours and is expandable for future panels or batteries—ideal for larger homes targeting roughly 3,500 kWh/month.

Specifications

• Solar Array: 48 × 550W bifacial mono panels (26,400W total)

• Inverters: 2 × Sol-Ark 15K-2P-N split-phase (grid-tied or generator compatible)

• Battery System: 3 × OMO 51.2V 5.12kWh heated, Bluetooth-enabled batteries (15.36kWh total) + OMO stackable combiner with LCD & wheeled base

• Mounting: IronRidge roof mount rails, splices, L-feet, fasteners & bolts

• Balance of System: 2 × PV combiner boxes, 500' 10AWG MC4 solar cable, 100' 6AWG AC cable, 20' 2/0 AC main line, 2 wire gutter boxes, AC combiner kit, MC4 crimper tool set, installation manual

Features

• Bifacial Double-Glass Panels: Up to 25% rear-side gain; 5400 PA snow / 2400 PA wind; 30-year power warranty

• Sol-Ark Performance: 120/240V split phase; works with or without batteries; 9kW continuous (16kW 10-sec surge)

• MPPT & Controls: 3 × MPPT inputs, LCD touchscreen, Wi-Fi connectivity

• Rooftop Ready: IronRidge roof hardware set for secure installation and clean aesthetics

• Scalable Power: Parallel stacking up to 8 Sol-Ark units for whole-home or estate-level capacity

• Seamless Backup: ~4 ms transfer time between grid and battery

Maintenance

• Daily: Check inverter status; ensure roof array is unobstructed

• Weekly: Inspect wiring runs, combiner boxes, and battery stack ventilation

• Annually: Clean panels, re-torque roof hardware, update inverter firmware, review system logs

Warranty

• Sol-Ark Inverters: 10-year manufacturer warranty

• Solar Panels: 30-year performance warranty