Sol-Ark 18K-2P Hybrid Inverter

Unlock whole-home backup and peak efficiency with the Sol-Ark 18K-2P. Built for hybrid (grid-tie + battery) and true off-grid applications, this inverter is a contractor-favorite for resilient homes, small businesses, and light commercial sites. It supports AC-coupled and DC-coupled designs, integrates cleanly with lithium or lead-acid batteries, and provides fast, seamless backup when the utility fails—no manual transfer needed.

Product Specifications

• Max PV Input: 32,400 W (450V Max Voc)

• MPPT Trackers: 3 Independent MPPTs

• Battery Charge/Discharge: 350 A

• Surge Power: 36,000 VA (10 seconds)

• Grid Pass-Through: 200 A

• Efficiency: 97.6% (CEC Weighted)

Why Installers Choose Sol-Ark 18K

• Hybrid + Off-Grid in one box: Grid-tie, battery backup, self-consumption, time-of-use shifting, and off-grid operation.

• Whole-home capable: Split-phase output for common U.S. panels and appliances; supports critical loads or whole-home backup when properly sized.

• Flexible battery options: Works with popular 48V LiFePO₄/Lithium batteries and advanced lead-acid (AGM/FLA); CAN/RS485 communication with many brands.

• AC/DC coupling: Add batteries to existing PV (AC-couple) or build high-efficiency new systems (DC-couple).

• Fast transfer (UPS-like): Millisecond-level switchover keeps lights, routers, and electronics online during outages.

• Smart generator support: Auto-start and coordinated charging for extended emergencies.

• Code-friendly: Meets modern interconnection and rapid-shutdown requirements with compatible devices; designed for U.S. NEC compliance.

• Easy monitoring: Built-in web/app monitoring for production, consumption, SOC, and alerts.

Benefits of Sol-Ark 18K-2P

• Massive Power Output: With 18kW continuous and 36kW surge, it powers everything from HVAC systems to well pumps simultaneously, eliminating the need for a “critical loads” panel.

• Ultimate Solar Capacity: Supports up to 32.4 kW of PV input, ensuring your batteries charge quickly even on cloudy days and maximizing your energy harvest.

• Battery Flexibility: Compatible with a wide range of 48V battery chemistries, giving you the freedom to choose the best storage solution for your budget and needs.

• Generator Ready: Includes a dedicated breaker and 2-wire auto-start for seamless generator integration, providing redundant backup power for extended outages.

General Data

• Dimensions (H x W x D): 33.98″ x 18.27″ x 11.10″ (863 x 464 x 282 mm)

• Weight: 137 lbs (62.4 kg)

• Enclosure Rating: NEMA 3R / IP65 (Outdoor Rated)

• Cooling: Intelligent Air Cooling

• Operating Temperature: -40°F to 140°F (-40°C to 60°C)

• Stackable: Yes (Up to 12 units)