20KW Complete Offgrid Solar Kit + 2x 15K Sol-Ark Inverter +19.8KW Solar with Roof Mount and Wiring

The 20KW Complete Offgrid Solar Kit + 2x 15K Sol-Ark Inverter +19.8KW Solar with Roof Mount and Wiring is designed for those who demand reliable and scalable off-grid energy. Featuring a 19.8KW bifacial solar array, dual Sol-Ark 15K hybrid/off-grid inverters, and a full Iron Ridge roof-mount system, this package is ideal for larger homes and properties using approximately 2,670 kWh per month.

The system produces around 89,100 watts per day based on 4.5 hours of peak sunlight and can run with or without batteries. A 48V battery may be added at any time to expand capacity or provide backup power. This kit is engineered for future expansion of both solar panels and battery storage.

Specifications

• Solar Array: 36× 550W bifacial mono solar panels (19,800W array)

• Inverters: 2× Sol-Ark 15K Hybrid/Off-Grid 48V All-in-One inverters with built-in MPPT controllers

• Mounting System: Complete Iron Ridge roof-mount rail kit (rails, splices, legs, fasteners & bolts)

• Combiner Boxes: 2× Solar combiner boxes (supports future expansion), 1× AC combiner kit for Sol-Ark

• Cabling Included: 500' 10AWG PV direct burial wire, 100' 6AWG AC/gen cable, 20' 4/0 AC main line, 2× gutter boxes, 1× MC4 crimp kit, 1× installation manual

Features

• Bifacial Double-Glass Panels: Up to 25% extra rear-side energy gain; high performance in weak light

• Weather Durability: 5400 PA snow load / 2400 PA wind load; 30-year power warranty

• Battery Flexible: System operates without batteries; add a 48V battery anytime

• Sol-Ark Smart Features: 120/240V split phase, 3× MPPT inputs, generator support, LCD touchscreen, WiFi connectivity

• High Efficiency: 97.5% inverter efficiency, DC transformerless, NEMA 3R outdoor-rated enclosure

• Expandable Design: Parallel stacking up to 8 units; system supports future panel and battery upgrades

Maintenance

• Daily: Verify inverter status and ensure panels remain clean and unobstructed

• Weekly: Inspect wiring, mounting hardware, combiner boxes, and overall system output

• Annually: Full inspection of rails, grounding, connectors, and apply any available inverter firmware updates

Warranty

• Solar Panels: 30-year power warranty

• Sol-Ark Inverters: 10-year manufacturer warranty

NOTE: Installation option available. Contact us before ordering for custom installation pricing in your area.