OVERVIEW

Built for the toughest off-grid and backup demands, the 18K 2P-N inverter delivers class-leading continuous battery power to run heavy electrical loads with ease. With 36 kW of surge capacity for up to 10 seconds, it starts HVAC systems and high-torque motors effortlessly during outages. Supporting over 40 kW of PV input through AC-coupled functionality, it outperforms any other residential inverter in its class. This powerhouse operates on U.S.-engineered firmware, secures your data locally, and includes a standard 10-year warranty.
Take control of your energy - don’t depend on the grid.

Key Features

• High Continuous Output: Delivers up to 18kW of continuous power directly from battery storage.

• Massive Surge Capability: Provides 36kVA of surge power for 10 seconds, ensuring HVAC units, compressors, and motors start smoothly during outages.

• Unmatched PV Input Capacity: Supports over 40kW of solar input when using AC-coupled functionality - more than any other residential inverter.

• Hybrid Flexibility: Designed for off-grid, on-grid, and backup power applications with seamless transition.

• Resilient Design: Engineered to handle the most demanding off-grid and backup conditions for homes and businesses.

• U.S.-Engineered Firmware: Developed with American technology for superior reliability and optimized performance.

• Secure Data Handling: Keeps all operational data stored domestically for enhanced privacy and compliance.

• Long-Term Assurance: Backed by a 10-year standard warranty for lasting peace of mind.

• Energy Independence: Enables full control of your home’s energy production, storage, and backup capability.

Specifications

As electricity prices climb, grid reliability declines, and demand for energy independence grows, homeowners are redefining what they expect from solar power systems.
Leading this evolution is the Sol-Ark® 18K-2P (18K-2P-N) hybrid inverter - a next-generation solution built for resilience, performance, and total control.

Engineered for the toughest off-grid and backup conditions, the 18K-2P delivers up to 18kW of continuous power from battery storage, easily handling large household loads. With 36kVA of surge capacity for up to 10 seconds, it starts heavy equipment like HVAC systems and motors effortlessly - even in full grid-outage scenarios.

Supporting more than 40kW of PV input when AC-coupled, the 18K-2P outperforms every other residential inverter on the market. Powered by American-engineered firmware, designed with secure U.S.-based data handling, and backed by a 10-year standard warranty, this powerhouse gives homeowners the confidence to break free from grid dependence and own their energy future.

Additional Documentation

Sol-Ark 18K Specifications

Sol-Ark 18K Manual

Sol-Ark 18K Value Comparison