45KW Complete Offgrid Solar Kit + 3x 15K Sol-Ark Inverter + 2x 32kWh OMO 48V Freedom Series Lithium Battery +45.1KW Solar with Roof Mount and Wiring

The 45KW Complete Offgrid Solar Kit + 3x 15K Sol-Ark Inverter + 2x 32kWh OMO 48V Freedom Series Lithium Battery +45.1KW Solar with Roof Mount and Wiring is designed for large off-grid homes, farms, and high-demand properties requiring dependable, long-term energy independence. Delivering approximately 202,950 watts per day under 4.5 peak sun hours, this system supports homes using around 6,088 kWh per month. Built for scalability, it allows for future expansion with more batteries or solar panels.

This configuration includes a 64KW lithium battery bank powered by two OMO 32kWh Freedom Series heated lithium batteries with smart Bluetooth monitoring and an LCD interface. Together with three Sol-Ark 15K hybrid/off-grid inverters, this system offers exceptional efficiency, backup capability, and flexibility.

Specifications

• Solar Array: 82 × 550W bifacial mono panels (45,100W total)

• Inverters: 3 × Sol-Ark 15K hybrid/off-grid inverters with built-in MPPT charge controllers

• Battery Bank: 2 × OMO 32kWh 48V Freedom Series heated lithium batteries (64kWh total)

• Roof-Mount Hardware: Complete IronRidge roof-mount system (rails, splices, L-feet, fasteners, bolts)

• Combiner Boxes: 3 × solar PV combiner boxes

• PV Cabling: 2 × 500' spools of 10AWG MC4 solar array cable

• AC Cabling: 2 × 100' spools of 6 AWG AC cable; 2 × 20' spools of 2/0 AC main line

• Battery Cabling: 2 × Anderson plug battery cable sets for inverter-to-battery connection

• Tools: MC4 crimping tool set

• Additional Hardware: 3 × wire gutter boxes; 1 × AC combiner box kit for multi-Sol-Ark systems

• Documentation: Installation manual + OMO Battery Specification Sheet

Features

• Bifacial Solar Technology: Dual-glass construction captures additional reflected light (up to 25% more output), excelling in cloudy or low-light environments

• Extreme Weather Durability: Rated for 5400 PA snow load and 2400 PA wind load; includes a 30-year performance warranty

• Scalable System: Add more panels or batteries as energy demands grow

• Highly Efficient Power Conversion: Sol-Ark inverters deliver 97.5% efficiency with ultra-fast 4ms transfer time

• Roof-Mount Ready: Includes all IronRidge mounting hardware for pitched or flat roof applications

Sol-Ark 15K Inverter Specs

• Output: 120/240V split phase

• Battery Compatibility: Operates with or without batteries; supports lithium or lead-acid 48V systems

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

• MPPT Channels: 3 independent MPPT inputs

• Generator Support: Full generator integration for backup power

• User Interface: LCD touchscreen with WiFi monitoring

• Enclosure Rating: NEMA 3R outdoor-rated

• Efficiency: 97.5% inverter efficiency

• Warranty: 10 years

• Parallel Stacking: Up to 8 units

• Transfer Time: 4ms from grid to battery

Maintenance

• Daily: Monitor inverter and battery status for normal operation

• Weekly: Inspect panel surfaces and check wiring connections

• Annually: Perform full system inspection, clean panels, tighten hardware, and review inverter logs

Warranty

• Solar Panels: 30-year performance warranty

• Sol-Ark Inverters: 10-year warranty

• OMO Batteries: Covered under Freedom Series manufacturer warranty