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

The 25KW Complete Offgrid Solar Kit - Homegrid 9.6kWh Lithium Battery + 2x15K Sol Ark Inverter +26.4KW Solar with Mounting Rails and Wiring is engineered for homeowners seeking a robust, scalable, and fully off-grid power solution. This system includes a 9.6kWh HomeGrid Stack’d Lithium Battery, dual 15K Sol-Ark hybrid inverters, and a 26.4KW bifacial solar array capable of producing approximately 118,800 watts per day based on 4.5 peak sun hours. Designed for larger homes consuming around 3,500 kWh per month, this package supports future add-ons such as additional batteries or solar panels.

Specifications

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

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

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

• Mounting System: IronRidge Mounting Rails, Splices, Legs, Fasteners & Bolts

• Combiner Boxes: 2 × Solar Combiner Boxes for future expansion

• Wiring Package: 500′ 10AWG PV 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 Solar Technology: Double-glass panels capturing up to 25% additional rear-side energy with excellent weak-light performance and high wind/snow load resistance (5400 Pa snow / 2400 Pa wind)

• Sol-Ark 15K Inverter Performance: 120/240V split-phase output, grid-tie or off-grid operation, generator support, WIFI monitoring, LCD touchscreen, 97.5% efficiency, NEMA 3R outdoor rating

• Battery Flexibility: HomeGrid Stack’d system is modular and expandable for future capacity increases

• System Output: Produces ~118,800 watts per day under average sunlight conditions

• Operational Capability: Suitable for powering lights, pumps, refrigeration, electronics, washers, fans, and small A/C systems

• Advanced Features: Parallel stacking up to 8 inverters; 4ms transfer time from grid to battery backup

Maintenance

• Daily: Review inverter and battery performance via the onboard LCD or WiFi monitoring

• Weekly: Inspect panel surfaces, wiring runs, and structural integrity of mounting rails

• Annually: Conduct a full system inspection including torque checks, grounding review, and inverter diagnostic review

Warranty

• Sol-Ark Inverters: 10-year warranty

• Solar Panels: 30-year performance warranty