40KW Complete Offgrid Solar Kit + 3x 15K Sol-Ark Inverter +40.15KW Solar with Ground Mount and Wiring

The 40KW Complete Offgrid Solar Kit + 3x 15K Sol-Ark Inverter +40.15KW Solar with Ground Mount and Wiring is engineered for large homes, farms, and full off-grid properties. The 73-panel array produces approximately 180,675 watts per day based on 4.5 sun-hours, suitable for sites using around 5,420 kWh/month. This configuration is battery-optional from day one—operate without batteries now and add a 48V bank later—while keeping a clear path for future expansion of panels or storage.

Specifications

• Solar Array: 73 × 550W bifacial mono panels (40,150W total)

• Inverters: 3 × Sol-Ark 15K Hybrid/Off-Grid All-in-One (integrated MPPT)

• Mounting System: IronRidge ground-mount rails, top caps, rail connectors, fasteners & bolts

• Combiner & Electrical: 3 × Solar PV combiner boxes; 1 × AC combiner kit (multi-Sol-Ark compatible); 3 × wire gutter boxes

• Wiring Included: 2 × 500' spools 10AWG MC4 solar wire; 2 × 100' spools 6AWG AC cabling; 2 × 20' spools 2/0 AC main line

• Tools & Docs: MC4 crimper tool set; installation manual

• Battery-Ready: Operates without batteries; add 48V battery storage anytime

• Production Estimate: ~180,675 Wh/day (4.5 sun-hours); suitable for ~5,420 kWh/month usage

Features

• Bifacial Double-Glass Panels: Harvest additional rear-side energy (up to 25%) and excel in low-light conditions

• Rugged Build: 5400 PA snow load & 2400 PA wind load ratings for harsh environments

• Battery Optional: Run now without storage; seamlessly integrate 48V batteries later

• Hybrid Flexibility: Off-grid, grid-tie, or hybrid operation with generator support

• Ground-Mount Advantage: Easier cleaning/maintenance and optimal tilt/orientation control

• Installation Option: Professional install available; contact for custom area pricing

Maintenance

• Daily: Review inverter status, array production, and system notifications

• Weekly: Inspect ground-mount hardware, wiring runs, and combiner boxes

• Annually: Clean panels; torque-check mount hardware; perform full electrical inspection

Sol-Ark 15K Inverter Specs

• Output: 120/240V split phase

• Battery Use: Works with or without batteries (48V lithium or lead acid)

• Operating Modes: Off-grid, grid-tie, or hybrid

• MPPT: Built-in charge controller with 3 MPPT inputs

• Generator Support: Integrated support for backup generators

• Interface & Comms: LCD touchscreen and Wi-Fi connectivity

• Efficiency: 97.5% inverter efficiency

• Enclosure: NEMA 3R outdoor-rated

• Warranty: 10 years

• Expandability: Parallel stacking up to 8 units

• Transfer Time: 4 ms switch to battery backup

Warranty

• Solar Panels: 30-year performance warranty

• Sol-Ark Inverters: 10-year manufacturer warranty