25KW Complete Offgrid Solar Kit - 3x32kWh OMO 48V Freedom Series Lithium Battery + 2x 15K Sol-Ark Inverter +26.4KW Solar with Mounting Rails and Wiring

The 25KW Complete Offgrid Solar Kit - 3x32kWh OMO 48V Freedom Series Lithium Battery + 2x 15K Sol-Ark Inverter +26.4KW Solar with Mounting Rails and Wiring is engineered for whole-home off-grid power. It combines two Sol-Ark 15K hybrid inverters with three OMO Freedom Series 32kWh heated lithium batteries (96kWh total) and a high-output 26.4KW bifacial solar array. With ~4.5 peak sun hours, the array produces about 118,800 watts per day. Ideal for larger homes using ~3,500 kWh per month, the system is fully expandable for future battery or panel additions.

Specifications

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

• Inverters: 2 × Sol-Ark 15K hybrid/off-grid all-in-one (48V, built-in MPPT)

• Battery Bank: 3 × OMO 32kWh 48V Freedom Series heated lithium with Bluetooth & LCD (96 kWh total)

• Mounting System: Complete IronRidge roof-mount rails, splices, legs, fasteners, bolts

• Combiner Boxes: 2 × solar PV combiner boxes (expansion-ready) + 1 × AC combiner box kit (for 2+ Sol-Ark)

• Wiring: 500′ 10AWG PV direct-burial wire; 100′ 6AWG AC output/input/generator cable; 20′ 4/0 AC main line

• Accessories: Anderson plug battery cable set, 2 × gutter boxes, MC4 crimp kit, installation manual

Features

• Bifacial Double-Glass Panels: Up to 25% rear-side energy gain; excellent low-light output; 5400 Pa snow / 2400 Pa wind load; 30-year power warranty

• Sol-Ark 15K Inverter: 120/240V split phase, grid-tie or off-grid, 3× MPPT inputs, generator support, LCD touchscreen, Wi-Fi, 97.5% efficiency, NEMA 3R outdoor-rated

• Performance: Parallel stack up to 8 inverters; 4 ms transfer time from grid to battery power

• Energy Output: ~118,800 watts/day based on 4.5 peak sun hours

• Suitable Loads: Runs wells, washers, fans, TVs, lights, refrigerators, freezers, electronics, and small AC systems

Maintenance

• Daily: Monitor inverter/battery status; keep ventilation paths clear

• Weekly: Inspect panels for debris; verify combiner boxes and wiring runs are secure; check roof-mount hardware

• Annually: Conduct professional inspection of electrical terminations, breakers, grounding, and mounting integrity

Warranty

• Sol-Ark Inverters: 10 years

• Solar Panels: 30-year power warranty