25KW Complete Offgrid Solar Kit - 9.6kWh Lithium Battery + 2x15K Sol Ark Inverter +26.4KW Solar with Ground Mount and Wiring

The 25KW Complete Offgrid Solar Kit - 9.6kWh Lithium Battery + 2x15K Sol Ark Inverter +26.4KW Solar with Ground Mount and Wiring is an excellent full off-grid power solution designed for homeowners seeking reliable, expandable energy independence. This system includes a 9.6kWh HomeGrid Stack'd Lithium Battery, dual 15K Sol-Ark inverters, and a powerful 26.4KW bifacial solar array producing approximately 118,800 watts per day (based on 4.5 sun hours). Ideal for larger homes consuming around 3,500 kWh per month, with full scalability for additional panels or batteries.

Specifications

• Solar Array: 48 × 550W Bifacial Mono Panels (26,400W total)

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

• Battery Bank: 1 × 9.6kWh HomeGrid 48V Stack’d Series Lithium Battery (expandable to 38.4kWh per Stack’d unit)

• Mounting System: IronRidge Ground-Mount Rails, Top Caps, Rail Connectors, Fasteners & Bolts (3" SCH40 pipe sourced locally)

• Combiner Boxes: 2 × Solar Combiner Boxes + 1 × Anderson Plug Battery Cable Set

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

• Accessories: MC4 Crimp Kit, 2 × Gutter Boxes, Installation Manual

Features

• Bifacial Double-Glass Solar Panels: Up to 25% rear energy gain, excellent low-light production, 5400 Pa snow load, 2400 Pa wind load, 30-year power warranty

• Sol-Ark 15K Inverter Technology: 120/240V split phase, grid-tie or off-grid, built-in MPPT, generator support, WiFi monitoring, LCD touchscreen, 97.5% efficiency, NEMA 3R outdoor-rated

• Performance: Parallel stacking of up to 8 Sol-Ark units; 4ms transfer time between grid and battery power

• Energy Output: ~118,800 watts/day under typical 4.5 peak-sun-hour conditions

• Application: Runs wells, lighting, refrigeration, electronics, washers, fans, and small AC systems

Maintenance

• Daily: Monitor battery and inverter status on LCD/WiFi

• Weekly: Inspect wiring, solar array cleanliness, and ground-mount structural components

• Annually: Perform full electrical system review, torque checks, grounding verification, and panel performance evaluation

Warranty

• Sol-Ark Inverters: 10 years

• Solar Panels: 30-year performance warranty