45KW Complete Offgrid Solar Kit + 3x 15K Sol-Ark Inverter +45.1KW Solar with Mounting Rails and Wiring

The 45KW Complete Offgrid Solar Kit + 3x 15K Sol-Ark Inverter +45.1KW Solar with Mounting Rails and Wiring is designed for large homes, farms, and full off-grid properties that require dependable daily power. Producing approximately 202,950 watts per day with 4.5 hours of peak sunlight, this system supports energy usage up to 6,088 kWh per month. Built for long-term scalability, it allows future additions of solar panels or 48V battery storage.

This kit can operate with or without a battery. A 48V battery can be added at any time to the Sol-Ark inverter system.

Specifications

• Solar Panels: 82 × 550W bifacial mono panels (45,100W array)

• Inverters: 3 × Sol-Ark 15K Hybrid/Off-Grid Inverters (48V) with MPPT charge controllers

• Mounting System: IronRidge Mounting Rails • Splices • Legs • Fasteners • Bolts (Mill Finish)

• Wiring & Components: 3 × PV combiner boxes • 2 × 500' 10AWG MC4 solar cabling • 2 × 100' 6AWG AC output/input cable • 2 × 20' 2/0 AC main line • 3 × gutter boxes • AC Combiner Box Kit

• Included Tools: MC4 crimper tool set • Installation manual

Features

• Bifacial Double-Glass Panels: Rear-side energy gain up to 25%; superior low-light and cloudy-day performance.

• High Durability: 5400 PA snow load & 2400 PA wind load; 30-year power warranty.

• Sol-Ark 15K Inverter Highlights: 120/240V split-phase • 3 MPPT inputs • Works with/without batteries • Generator support • LCD touchscreen • Wi-Fi • 97.5% efficiency • NEMA 3R outdoor rating

• Flexibility: Operates immediately without batteries; optional 48V expansion.

• System Performance: Parallel stacking up to 8 inverters • ~4ms transfer time between power sources

• Installation Option: Professional installation available; contact for local pricing.

Maintenance

• Daily: Check inverter status and ensure panels are unobstructed.

• Weekly: Inspect cabling, rail hardware, and combiner boxes.

• Annually: Perform torque checks, clean panels, update firmware, and run a performance assessment.

Warranty

• Solar Panels: 30-year performance warranty

• Sol-Ark Inverters: 10-year manufacturer warranty