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Sol-Ark 15K-2P Hybrid Inverter + 1 x Discover Helios Battery

Sol-Ark 15K-2P Hybrid Inverter + 1 x Discover Helios Battery

BY: Sol-Ark | SKU: Availability: In Stock
$10,114.00

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Sol-Ark 15K-2P Hybrid Inverter + 1 x Discover Helios Battery

The Sol-Ark 15K-2P Hybrid Inverter paired with the Discover Helios LiFePO4 Battery delivers a powerful, all-in-one energy solution for residential and commercial applications. Designed for maximum efficiency and reliability, the Sol-Ark 15K-2P is one of the most advanced hybrid inverters available, offering grid-tied, off-grid, and battery backup capabilities.

With its 15kW continuous power output, grid-forming technology, and smart load management features, this inverter ensures seamless operation and optimized energy use. Paired with the Discover Helios 16.1kWh battery, users gain a robust storage system built to provide high cycle life, outdoor-rated durability, and stable backup power when it’s needed most.

Sol-Ark 15K-2P Hybrid Inverter + Discover Helios Battery Features

High Power Output - 15kW continuous power with the ability to handle off-grid, grid-tied, and hybrid applications.

Battery Backup Ready - Integrated with the Discover Helios LiFePO4 Battery for reliable long-term storage.

Flexible Energy Management - Seamlessly integrates solar, grid, and battery power with advanced load-shifting and time-of-use controls.

Smart Monitoring - Built-in monitoring system allows users to track performance and energy usage in real-time.

Outdoor-Rated Battery - The Helios battery is IP55-rated and designed for all-weather conditions.

Scalable Design - Supports future expansion for additional batteries and system growth

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Sol-Ark 15K-2P Hybrid Inverter + Discover Helios Battery Applications

  • Whole-home backup – Keep essential appliances running during outages.
  • Off-grid living – Reliable power supply for remote properties.
  • Solar self-consumption – Store solar energy for nighttime or peak usage.
  • Commercial energy savings – Reduce demand charges and utility costs.
  • Emergency preparedness – Power security systems, medical equipment, and communication devices.

What's Included

Everything you need is included with your product.

  •  1 x Sol-Ark 15K-2P-N
  •  1 x 52-48-16000 Helios ESS Battery Module
  •  1 x 950-0067 – Sol-Ark 15K Conduit Box
  •  2 x 950-0072 - Battery Cable Terminal Connector Set (UL) No Cables (1-POS, 1-NEG, 1/0 and 2/0 Cables Not Included)
  • User Manual

SOL-ARK 15K-2P Hybrid Inverter Specifications

Input Data (PV)

Specification Details
Max. Allowed PV Power (STC) 19,500W
Rated MPPT Operating Voltage Range 175 - 425V
MPPT Voltage Range 150 - 500V
Startup Voltage 125V
Max. Input Voltage 500V
Max. Operating Input Current per MPPT 26A
Max. Short Circuit Current per MPPT 44A
No. of MPP Trackers 3
No. of PV Strings per MPPT 2
Max. AC Coupled Input 19,200W

Output Data (AC)

Specification Details
Nominal AC Voltage 120/240V, 120/208V, 220V
Grid Frequency 50 / 60Hz
Real Power, max continuous 15,000W
Max. Output Current 62.5A
Real Power, max continuous (batteries only, no PV) 12,000W (50A @ 240V)
Peak Apparent Power (10s, off-grid) 24,000VA @ 240V
Peak Apparent Power (100ms, off-grid) 30,000VA @ 240V
Max Output Fault Current (5s) 94A with PV, 75A (batteries only)
Max Output Fault Current (100ms) 120A
Max. Grid Passthrough Current 200A
Power Factor Output Range +/- 0.9 adjustable
Backup Transfer Time 5ms
CEC Efficiency 96.5%
Max Efficiency 97.5%
Design (DC to AC Transformerless DC
Stackable Up to 12 in parallel

Battery Input Data (DC)

Specification Details
Battery Technologies Lithium / Lead Acid
Nominal DC Voltage 48V
Operating Voltage Range 43 - 63V
Capacity 50 — 9900Ah
Max. Battery Charge / Discharge Current 275A
Charging Controller 3-Stage with Equalization
Grid to Battery Charging Efficiency 96.0%
External Battery Temperature Sensor (BTS) Included
Automatic Generator Start (AGS) 2 Wire Start - Integrated
BMS Communication CANBus & RS485 MODBUS

General Data

Specification Details
Dimensions (H x W x D) 807 x 494 x 306 mm (31.8 x 19.4 x 12 in)
Weight 61.2 Kg / 135 lb.
Enclosure IP65 / NEMA 3R
Ambient Temperature -25~55°C, > 45°C Derating
Noise < 30 dB @ 25°C (77°F)
Idle consumption - No Load 90W
Communication and Monitoring Wi-Fi & LAN Hardware Included
Standard Warranty 10 Years

Protection and Certifications

Specification Details
Certifications and Listings UL1741-2010/2018, IEEE1547a 2003/2014, FCC 15 Class B, UL1741SB, CA Rule 21, HECO Rule 14H
PV DC Disconnect Switch — NEC 240.15 Integrated
Ground Fault Detection — NEC 690.5 Integrated
PV Rapid Shutdown Control — NEC 690.12 Integrated
PV Arc Fault Detection — NEC 690.11 Integrated
PV Input Lightning Protection Integrated
PV String Input Reverse Polarity Protection Integrated
AC Output Breaker - 63A Integrated
250A Battery Breaker / Disconnect Integrated
Surge Protection DC Type II / AC Type II

Discover HELIOS ESS LiFePO4 Battery 16.1 kWh 51.2V 314 Ah Outdoor Specifications

Electrical Specifications

Specification Details
Nominal Voltage 51.2 V
Energy 16,080 Wh
Nominal Capacity 314 Ah
Charge Bulk Voltage - Bulk Vdc 55.2 – 56.8 V
Charge Absorption Voltage - U1 MAX 55.2 – 56.8 V
Charge Float Voltage - U2 53.6 V
Charge Termination Current (a) 5 A
Low Voltage Disconnect Recommended 48 V
Low Voltage Disconnect (b) 43.2 V
Max Continuous Charge Current (c) 200 A
Max Continuous Discharge Current (c) 200 A
Peak Discharge Current (15 seconds) 300 A RMS
Self Discharge Current (operation) ≤ 25 mA
Self Discharge Current (battery OFF) ≤ 4 mA
Breaker Type Single-Pole (positive only) 200 A breaker (CVP-RH-P2BD5-D200-LT)
Maximum Short Circuit Fault Current (IBF / ½ IBF) 7.16 kA (100 ms) / 3.58 kA (100 ms)
Arc Flash Incident Energy IEm 0.310 Cal/cm²
Arc Flash Incident Energy AFB 239 mm (9.41 in)

Mechanical Specifications

Specification Details
Height (A) 900 mm (35.43 in)
Width (B) 465 mm (18.31 in)
Depth - body only (C) 247 mm (9.72 in)
Depth (including Wall-Mount bracket) 271 mm (10.7 in)
Terminal Quick Connect Plug and Pull Terminal
Weight 136 kg (299.83 lb)
IP Rating IP65
Case Material Galvanized Steel Sheet
Certifications UN38.3, UL 1973, UL 9540A, UL 9540 DC ESS 3rd Edition (Pending)

Frequently-Asked Questions

Can the Sol-Ark 15K-2P run off-grid without the grid?

 Yes, the Sol-Ark 15K-2P is designed for off-grid operation and can form its own power grid.

How long will the Discover Helios battery last?

 The battery is designed for 6,000+ cycles, giving it a lifespan of 10–15 years depending on usage.

Can I expand my battery capacity later?

 Yes, the Discover Helios battery is scalable, and additional units can be added for increased storage.

Is professional installation required?

 Yes, both the inverter and battery should be installed by a licensed electrician or solar installer to ensure warranty coverage and safety compliance.