


Sol-Ark 18kW 18K-2P-N Hybrid Solar Inverter
Sol-Ark 18kW 18K-2P-N Hybrid Solar Inverter
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Sol-Ark 18kW 18K-2P-N Hybrid Solar Inverter
18K-2P-N
Sol-Ark 18K-2P-N 18kW Hybrid Solar Inverter
Ships Mid-October
The Most Powerful Residential Hybrid Inverter
The Sol-Ark 18K-2P-N Hybrid Inverter is engineered for the most demanding residential and light commercial applications. With 18kW continuous power, 36kW surge power (10 seconds), and support for over 40kW of PV when AC-coupled, this inverter sets the standard for performance and reliability.
Whether you’re looking for grid-tied, off-grid, or battery-backed solar systems, the 18K-2P-N provides unmatched flexibility. It’s designed for seamless integration with lithium-ion batteries like Fortress Power, EG4, and SimpliPhi, while delivering advanced monitoring, scalability, and built-in protections.
Key Features
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18kW Continuous Power Output: Handles even the largest residential and light commercial loads.
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36kW Surge Capacity (10s): Starts HVAC systems, motors, and heavy appliances without issue.
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Unmatched PV Support: Up to 32.4kW PV input, 28.8kW usable, plus 19.2kW AC-coupled input.
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Battery-Based Design: Wide 48V battery range with 350A continuous charge/discharge.
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Stackable: Connect up to 12 units for massive scalability.
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Integrated Protection: Built-in DC disconnect, ground fault detection, surge protection, and 200A AC breaker.
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NEMA 3R Outdoor Enclosure: Withstands harsh environments (-40°C to +60°C).
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10-Year Standard Warranty: Industry-leading reliability and peace of mind.
Why Choose the Sol-Ark 18K-2P-N?
The 18K-2P-N is more than an inverter — it’s an energy independence powerhouse. American-engineered firmware, superior surge handling, and the ability to support the largest PV arrays make it the most capable residential hybrid inverter on the market. With full UL1741SB compliance, IEEE1547-2018 interoperability, and integrated AFCI/GFDI protection, you can be confident in safety and performance.
Benefits
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Energy Independence: Reduce or eliminate reliance on the grid.
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Reliable Backup Power: Keep homes and businesses running during outages.
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Massive PV & Battery Flexibility: Future-proof your system with scalable integration.
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Silent & Efficient: <50 dB operation and up to 97.6% efficiency.
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Durable Outdoor Design: Built for real-world conditions with IP65/NEMA 3R protection.
Technical Specifications
Attribute | Specification |
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Power Output | 18,000W continuous AC |
Surge Power | 36,000W (10 seconds) |
Battery Voltage | 48V nominal (40–60V) |
PV Input Power | 32,400W max, 28,800W usable |
AC Coupled Input | 19,200W |
MPPT Voltage Range | 150–425V |
Max DC Input Voltage | 500V |
MPPT Inputs | 3/2 |
Max. Battery Charge/Discharge | 350A |
Output Voltage | 120/240V split-phase, 208V |
Efficiency | Max: 97.6% |
Dimensions | 34 x 18.3 x 11.1 in (863 × 464 × 282 mm) |
Weight | 137 lbs (62.4 kg) |
Enclosure | IP65 / NEMA 3R |
Operating Temperature | -40°C to +60°C (derating >45°C) |
Certifications | UL1741 SB, IEEE1547-2018, IEEE2030.5, Hawaiian Electric SRD V2.0, UL1699B PVDC AFCI, UL1998, CSA C22.2 No. 107 |
Warranty | 10 Years |
Applications
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Residential Homes: Whole-home power with backup capability.
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Commercial Properties: Efficient and reliable energy for demanding facilities.
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Off-Grid Systems: Ideal for remote or critical applications.
Order the Sol-Ark 18K-2P-N Today
Upgrade to the most powerful residential hybrid inverter available. Whether your goal is energy independence, reliable backup power, or large-scale solar integration, the Sol-Ark 18K-2P-N is built to perform.
Certified Battery Partners
The Sol-Ark 18K-2P-N is fully certified to work with top battery manufacturers, ensuring seamless integration and reliable performance.
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