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Limitless 18K-2P-LV
The most powerful residential solar hybrid inverter on the market
Built for high-demand homes, the Limitless 18K Hybrid Inverter delivers premium, resilient 120/240VAC backup power and advanced energy management in a single, powerful platform. With 18kW of continuous output and 36kW surge capability, it easily starts large loads such as HVAC systems, well pumps, and motors.
Designed for maximum installation flexibility, the Limitless 18K supports both DC and AC-coupled solar, making it ideal for new installations and retrofit projects alike. A 200A grid passthrough helps eliminate costly main service panel upgrades, while the integrated Smart Load function and multifunction GEN port provide seamless support for generators, AC-coupled PV, and intelligent load management.
The result is a complete whole-home energy solution that delivers exceptional performance, installation flexibility, and reliable energy independence—without requiring additional PCS components.
Key Specifications
- Limitless 18K with Revenue-Grade Meter
Built for energy independence, energy security, and affordability
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Energy Management
- Multi-Season Time-of-Use
- Zero Meter
- Self-Consumption
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Grid Interactive
- NEM - Grid Sell
- Peak Shaving
- VPP Ready
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Backup Resilience
- 5ms Transfer Time
- Auto Generator Start
- Smart AC Load Control
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New Installs or Retrofits
- All-in-One Hybrid Platform – No MID
- AC and DC Solar Coupling
- Generator Integration
Explore the Sol-Ark 18K
Take a closer look at the Sol-Ark 18K Hybrid Inverter. Engineered for demanding residential energy needs, its intelligent controls and flexible system connections make it easier to manage solar, storage, and backup power. Hover over or click on the numbered points to explore the features behind its performance.
Choose the battery that fits the project
Sol-Ark gives installers the freedom to select the right battery for each application. Choose from a growing range of compatible storage options to balance performance, capacity, availability, and project cost.Certified battery partners support closed-loop communication and UL 9540 system configurations, helping simplify commissioning, monitoring, and code compliance while preserving design flexibility.” That message preceeds the listing of certified partners.
Install simply. Monitor easily. Stay connected.
MySolArk brings commissioning, monitoring, communications, and remote system control together in one connected platform. Installers can get systems online faster, manage fleets remotely, and simplify ongoing support, while owners get clear, intuitive visibility into their energy systems’ performance. Developed in the United States and securely hosted on U.S.-based AWS infrastructure, MySolArk is designed with privacy, security, and long-term flexibility in mind, providing a platform that can evolve as energy management, grid services, and building capabilities continue to grow.
MySolArk Installer App
Commission faster and standardize your process with the MySolArk Installer App. Supports a standard workflow from configuration through closeout.
MySolArk V2 Monitoring App
The MySolArk Monitoring app gives owners clear visibility into their energy performance and convenient control over their system.
The American advantage, built into every Sol-Ark system
Sol-Ark supports installers with more than hardware. From expert technical support and reliable product availability to hands-on training, the Sol-Ark experience is built around the needs of residential energy professionals.
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U.S. Based Technical Support
Technical experts available 7 days a week.
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U.S. Manufacturing and Inventory
Assembled and tested in the U.S.
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U.S. Data Hosting and Firmware
Reliable and secure.
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Installer Corps Loyalty Program
Rewards, training and priority benefits as you grow.
