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

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

BY: Sol-Ark | SKU: Availability: In Stock
$14,134.00

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

The Sol-Ark 15K-2P Hybrid Inverter paired with two Discover Helios LiFePO4 batteries delivers one of the most powerful, flexible, and reliable energy storage solutions available today. Designed for residential, commercial, and off-grid applications, this bundle provides 30+ kWh of battery capacity alongside a robust 15kW hybrid inverter capable of managing solar, grid, and generator inputs simultaneously.

Engineered for efficiency and reliability, the Sol-Ark 15K-2P features grid-forming technology, smart load management, and seamless backup power. Combined with the Helios batteries—rated for 6,000+ cycles, outdoor durability, and high discharge performance—this system ensures long-term reliability, energy independence, and peace of mind.

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

High Power Hybrid Inverter - 15kW continuous output, compatible with grid-tied, off-grid, or hybrid applications.

Massive Battery Storage - Includes two Discover Helios 16.1kWh batteries, providing a total of 32.2kWh usable storage.

Seamless Backup Power - Automatic switchover ensures essential loads remain powered during outages.

Scalable & Future-Proof - Expand battery storage capacity or add solar input as energy needs grow.

Outdoor-Rated Battery - Helios batteries feature an IP55-rated enclosure for long-lasting, all-weather durability.

Smart Monitoring & Control - Real-time performance tracking via integrated Sol-Ark monitoring system.

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

  • Whole-home backup – Run appliances, HVAC, and critical systems during outages.
  • Off-grid living – Reliable power for cabins, remote homes, or full energy independence.
  • Commercial energy savings – Offset peak demand charges and utility costs.
  • Solar self-consumption – Store excess solar energy for nighttime or peak demand usage.
  • Emergency preparedness – Power critical systems like medical devices, freezers, and security equipment.

What's Included

Everything you need is included with your product.

  •  1 x Sol-Ark 15K-2P-N
  •  2 x 52-48-16000 Helios ESS Battery Module
  •  1 x 950-0067 – Sol-Ark 15K Conduit Box
  •  1 x 950-0077– Generic Conduit Box
  •  3 x 950-0072 - Battery Cable Terminal Connector Set (UL) No Cables (1-POS, 1-NEG, 1/0 and 2/0 Cables Not Included)
  • 1 x 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

How long will this system power my home during an outage?

 With 32.2kWh of usable storage, this setup can power essential loads for over 24 hours, depending on energy consumption.

Can I expand battery storage later?

 Yes. The Discover Helios system is scalable, and more units can be added for increased capacity.

Is this system grid-tied or off-grid?

 It works in both. The Sol-Ark 15K-2P supports grid-tied, off-grid, and hybrid setups.

Does this system require professional installation?

 Yes. Installation must be done by a licensed electrician or solar installer to maintain warranty coverage.