Sol-Ark 18K Hybrid Solar Inverter 18K-2P-N All in One
The Sol-Ark 18K Hybrid Solar Inverter is an all-in-one, weather-ready solution for whole-home backup, off-grid operation, and grid-tied applications. Zero-load-shedding with 200A passthrough eliminates the need for a separate subpanel while enabling seamless energy management for critical loads. Features include parallel stacking, grid sell, meter zero, time-of-use, smart load, AC coupling, and peak shaving for optimized solar utilization.
All-In-One, outdoor-ready design: The 18K comes in a pre-wired outdoor enclosure that minimizes on-site hardware and keeps installation simple and cost-effective. Battery agnostic: compatible with a broad range of 48V chemistries—from lead-acid to lithium—without locking you into a specific storage solution. Engineered, serviced, and tested in the USA with direct access to a U.S.-based engineer seven days a week.
Performance specifications
- Inverter Type: Hybrid (grid-tie, off-grid, battery backup)
- Output Power: 18,000 W continuous / 36,000 W surge
- Battery Voltage: 48 V
- MPPT Inputs: 3
- Max Usable PV Input Power: 28,800 W
- Efficiency: 97.6%
- Weight: 137 lb
- Dimensions (H×W×D): 33.97" × 18.3" × 11.1"
Safety, reliability, and certifications
- Rapid shutdown signal
- Battery disconnect and PV disconnect
- Battery temperature sensor and current sensors
- Remote monitoring and system health visibility
- Highly Accelerated Life Testing; proven durability beyond the standard 10-year warranty
Installation, maintenance, and support
The Sol-Ark 18K’s All-In-One outdoor case is pre-wired for minimal field wiring, reducing install complexity and ongoing costs. It is designed to operate with 48V battery banks and supports grid-tied, off-grid, and backup configurations. Maintenance centers on routine checks of connections and battery health; remote monitoring provides ongoing system visibility.
Warranty and service
Warranty coverage follows a standard 10-year warranty, with life performance demonstrated through Highly Accelerated Life Testing. For technical guidance and repairs, connect with a U.S.-based engineer seven days a week.
Sol-Ark 18K Hybrid Solar Inverter – All in One
Zero load shedding with 200A passthrough — no subpanel required!
The 18K is perfect for whole-home backup. Features include parallel stacking, grid sell, meter zero, time of use, smart load, AC coupling, & peak shaving.
All-In-One
The Sol-Ark 18K Outdoor Case is a pre-wired system with minimal additional hardware, your install stays simple and cost-effective.
Battery Agnostic
Sol-Ark inverters do not have expensive battery restrictions like other solar inverters do. The 18K works with a wide variety of 48V battery chemistries, from lead to lithium.
Highly Accelerated Life Testing
Proven to last well beyond the standard 10-year warranty.
Engineered, Serviced, And Tested In The USA
Talk to a U.S.-based engineer 7 days a week.
Applications
The best applications for the Sol-Ark 18K are whole-home backup, off-grid, grid-tied, and time-of-use savings.
- Grid-Tied Mode – Sell power back to the utility to reduce your electric bill
- Meter Zero Mode – Zero out your electric bill without adding an additional smart meter
- Time-Of-Use Mode – Use solar + batteries to minimize grid power usage when it’s most expensive
- Smart Load Mode – Programmable output for high-power off-grid loads or grid interaction
- Time-of-Use Loads – Run only when solar is optimal, using excess PV power when batteries are full
- Off-Grid Applications – battery agnostic
- AC Coupling – retrofits to existing grid-tied systems
- Battery Backup – seamless, zero load shedding
User Features And Integrations
- Color touch screen
- Remote monitoring from smart device
- Battery disconnect
- Battery temp sensor
- Auto-generator start
- Rapid shut down signal
- Current sensors
- Battery communication
- PV disconnect
- Wiring knockouts
- WiFi
SA-18K Specifications:
- Inverter Type: Hybrid (grid-tie, off-grid, battery backup)
- Output Power: 18,000W continuous / 36,000W surge
- Battery Voltage: 48V
- MPPT Inputs: 3
- Max Usable PV Input Power: 28,800W
- Efficiency: 97.6%
- Weight: 137 lbs
- Dimensions (H x W x D): 33.97" x 18.3" x 11.1"
Monitor it from anywhere!
Literature and Downloads
Sol-Ark SA-18K Install Guide and Owner Manual
Sol-Ark Battery Communications Integration Guide
Sol-Ark Inverter Programming Guide