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

Everything you need is included with your product.
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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) |
| 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) |
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.
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