40KW Complete Offgrid Solar Kit + 3x 15K Sol-Ark Inverter + 32kWh OMO 48V Freedom Series Lithium Battery +40.15KW Solar with Ground Mount and Wiring

The 40KW Complete Offgrid Solar Kit + 3x 15K Sol-Ark Inverter + 32kWh OMO 48V Freedom Series Lithium Battery +40.15KW Solar with Ground Mount and Wiring is engineered for large off-grid homes, farms, and high-demand properties. With 73 × 550W bifacial panels (40.15KW), three Sol-Ark 15K hybrid inverters, and 32kWh of heated lithium storage, it delivers robust whole-property power and room to grow. Expect approximately 180,675 watts/day of production (at 4.5 sun-hours), suitable for sites using around 5,420 kWh/month. The system is fully scalable for future solar or battery expansions.

Specifications

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

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

• Battery Storage: 1 × OMO 32kWh 48V Freedom Series heated lithium battery with Bluetooth & LCD (32kWh total)

• Mounting: IronRidge GROUND mount kit (Rails, Top Caps, Rail Connectors, Fasteners & Bolts) — built around 3" SCH 40 pipe (customer-supplied)

• Combiner & Balance of System: 3 × Solar PV combiner boxes; 1 × AC combiner box kit (multi-Sol-Ark setups); 3 × wire gutter boxes

• Wiring & Cables: 2 × 500' spools 10AWG MC4 solar cable; 2 × 100' spools 6AWG AC output/input/generator cable; 2 × 20' spools 2/0 AC main line; 1 × Anderson plug battery cable set

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

• Battery Specs: Battery Specification Sheet

Features

• Bifacial Double-Glass Panels: Rear-side gain up to 25% for higher daily yield; excellent low-light performance

• Rugged Panel Design: 5400 PA snow load / 2400 PA wind load; 30-year power warranty

• Ground Mount Advantages: Optimal tilt, cooling airflow, easy maintenance; uses locally sourced 3" SCH 40 pipe

• Scalable Architecture: Add panels, batteries, and even more inverters as needs grow

• Whole-Property Power: Supports large homes, agricultural operations, and heavy electrical loads

Maintenance

• Daily: Check inverter status, battery state-of-charge, and production metrics

• Weekly: Inspect array for debris/shading; spot-check wiring and combiner enclosures

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

Sol-Ark 15K Inverter Specs

• Output: 120/240V split-phase

• Battery Flex: Operates with or without batteries; 48V lithium or flooded lead-acid

• Modes: Grid-tie, hybrid, or off-grid

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

• Generator Support: Yes

• User Interface: LCD touch screen; Wi-Fi connectivity

• Design: DC transformerless; 97.5% inverter efficiency

• Enclosure: NEMA 3R (outdoor rated); 10-year warranty

• Stacking: Parallel up to 8 units; ~4 ms transfer time

Warranty

• Solar Panels: 30-year power warranty

• Sol-Ark Inverters: 10-year manufacturer warranty

• Lithium Battery: See Battery Specification Sheet for full warranty terms