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Sol-Ark 18K-2P Hybrid Inverter (Pre-Order: Ships Mid December)

Sol-Ark 18K-2P Hybrid Inverter (Pre-Order: Ships Mid December)

BY: Sol-Ark | SKU: 18K-2P Availability: In Stock
$9,870.00
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Sol-Ark 18K-2P Hybrid Inverter

The Sol-Ark 18K-2P Hybrid Inverter is a powerful, whole-home energy solution designed for grid-tied, off-grid, or hybrid solar systems. With 18kW of power, advanced load management, and seamless grid or generator integration, this inverter keeps your home running during outages while optimizing energy savings year-round. Its all-in-one design simplifies installation and reduces equipment costs, making it one of the most user-friendly hybrid inverters available.

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Sol-Ark 18K-2P Hybrid Inverter Features

Whole Home Backup – Supports up to 18kW continuous output for powering your entire home during grid outages.

Grid-Tied + Off-Grid Ready – Flexible design supports grid-tied solar with battery backup, full off-grid systems, or hybrid setups.

High Efficiency – Industry-leading 97.6% efficiency rating reduces wasted energy and maximizes your solar investment.

Scalable Energy Storage – Compatible with a wide range of lithium and lead-acid batteries for flexible backup capacity.

Built-In MPPT Solar Charge Controllers – Up to 26kW PV array input, optimizing solar power production in real time.

Rapid Shutdown Ready – Fully compliant with NEC 2017/2020 rapid shutdown safety requirements.

Easy Installation & Monitoring – Compact wall-mounted design with intuitive touchscreen display and remote monitoring via app or web.

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Sol-Ark 18K-2P Hybrid Inverter Applications

  • Whole-home backup – Keep essential appliances and your entire home powered during outages.
  • Grid-tied solar with battery backup – Maximize solar savings while protecting against blackouts.
  • Off-grid living – Provide reliable, independent power for remote properties or cabins.
  • Commercial applications – Ideal for small business energy resilience and cost reduction.
  • EV charging support – Power your electric vehicles directly from solar or stored battery energy.

What's Included

Everything you need is included with your product.

  • 1 x Sol-Ark Limitless 18K-2P-LV inverter
  • 1 x French Cleat
  • 10 x Filter Rings
  • 1 x CAT 5E Communication Cable
  • 1 x Allen Keys (4mm and 8mm)
  • 1 x Temperature Sensor
  • 1 x Wi-Fi / Ethernet Antenna (Dongle)
  • 2 x 300A (Ø1.378”) Current transformers (CT sensors)
  • User manual

Warranty

  • 10 years of Warranty

Sol-Ark 18K-2P Hybrid Inverter Specifications

Input Data (PV)

Specification Details
Max. Supported PV Power 32,400W
Max. Usable PV Power 28,800W
Max. AC Coupled Input 19,200W
Rated MPPT Operating Voltage Range 150 - 425V
Startup Voltage 125V
Max. DC Input Voltage 500V
Max. Operating Input Current per MPPT 36A
Max. Short Circuit Current per MPPT 54A
No. of MPPT/Inputs 3/2

Output Data (AC)

Specification Details
Continuous Power 18,000W
Surge Power (10s) 36,000W
Grid Voltage/ Frequency 120/240; 208 0.88Un＜U＜1.1Un / 55-65
Max. Output Current 75A
Max. Grid Passthrough Current 200A
Max Efficiency 97.6%
Stackable Yes; Max 12

Battery Input Data (DC)

Specification Details
Nominal DC Voltage 48V
Operating Voltage Range 40 - 60V
Capacity 50 — 9900Ah
Continuous Battery Charge / Discharge Current 350A
BMS Communication CANBus & RS485 MODBUS

General Data

Specification Details
Dimensions [H x W x D (mm)] 863 x 464 x 282 mm
Weight 62.4 Kg / 137 lb.
Enclosure IP65 / NEMA 3R
Ambient Temperature -40~+60°C, > 45°C Derating
Operating Altitude 3000 m (9843 ft)
Noise < 50 dB
Standard Warranty 10 Years

Protection and Certifications

Specification Details
Certifications and Listings UL1741 3rd SB, UL1741 CRD-PCS, IEEE1547-2018 and interoperability using IEEE2030.5, Hawaiian Electric SRD V2.0, UL1699B PVDC AFCI, UL1998, CSA C22.2 No. 107
PV DC Disconnect Switch Integrated
Ground Fault Detection — NEC 690.5 Integrated
AC Output Breaker - 200A Integrated
Surge Protection DC Type II / AC Type II

Frequently-Asked Questions

How much solar can I connect to the Sol-Ark 18K-2P?

The inverter supports up to 26kW of solar PV input, allowing you to oversize your solar array to maximize energy harvest.

Can I run my whole house on this inverter?

Yes. With 18kW continuous output and surge capacity, the 18K-2P can power a full home, including large appliances and HVAC systems.

Is this inverter compatible with different battery types?

Absolutely. It works with a variety of 48V lithium batteries (like LiFePO4) and lead-acid batteries, making it flexible for new or existing systems.

Does the inverter work during a grid outage?

Yes. The Sol-Ark 18K-2P provides instant switchover to battery backup, keeping your home running without interruption.

Can I monitor my system remotely?

Yes. Sol-Ark offers an intuitive app and web platform so you can track solar production, battery state of charge, and system status in real time.