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Solis S6-EH3P15K-H Three-Phase Hybrid Energy Storage Inverter
The Solis S6-EH3P15K-H 15kW Three-Phase Hybrid Solar Inverter is a high-performance energy storage solution designed for large residential and small commercial solar power systems. It integrates solar PV generation, battery storage, grid electricity, generator input, and backup power management into a single system.
With a 15kW rated output, the inverter can manage solar energy efficiently while supporting high-voltage lithium-ion batteries with a 120V–800V battery voltage range. During the day, solar energy can power connected loads and charge the battery. When solar production is insufficient or the grid is unavailable, stored battery energy can be used to supply connected loads, depending on battery capacity and system configuration.
The Solis S6-EH3P15K-H features four independent MPPT trackers, making it suitable for rooftop solar systems with multiple orientations and different PV string configurations. It also supports generator networking and parallel operation, allowing greater flexibility for larger energy storage systems.
For backup applications, the inverter provides UPS-level switching in less than 10ms, three-phase unbalanced load support, half-wave load support, and short-term backup overload capability. With 97.7% maximum efficiency, IP66 protection, and intelligent redundant fan cooling, it is designed for reliable operation in suitable residential and commercial installations.
Key Features
- 15kW rated three-phase hybrid inverter
- Designed for large residential and small commercial solar systems
- Supports high-voltage lithium-ion batteries
- 120V–800V battery voltage range
- 30kW recommended maximum PV array size
- 24kW maximum usable PV input power
- Maximum PV input voltage up to 1000V
- Four independent MPPT trackers
- Maximum PV input current of 20A per MPPT
- Maximum short-circuit current of 30A per MPPT
- Supports generator networking
- Supports parallel operation of multiple inverters
- UPS-level backup switching of less than 10ms
- Supports three-phase unbalanced loads
- Supports half-wave loads
- Provides up to 2× rated backup power for 10 seconds
- Maximum efficiency up to 97.7%
- Integrated DC switch
- Optional integrated AFCI 2.0
- IP66 protection rating
- Intelligent redundant fan cooling
- Supports CAN and RS485 battery communication
- Bluetooth and app monitoring
- Optional Wi-Fi, Cellular and LAN communication
- 5-year warranty, subject to applicable supplier/manufacturer terms
Technical Specifications
Solar PV Input
| Specification | Details |
|---|---|
| Model | S6-EH3P15K-H |
| Rated Output Power | 15kW |
| Recommended Maximum PV Array Size | 30kW |
| Maximum Usable PV Input Power | 24kW |
| Maximum Input Voltage | 1000V |
| Rated Voltage | 600V |
| Start-up Voltage | 160V |
| MPPT Voltage Range | 200–850V |
| Maximum Input Current | 4 × 20A |
| Maximum Short-Circuit Current | 4 × 30A |
| Maximum Input Power per MPPT | 9kW |
| MPPT Number | 4 |
| Maximum Input Strings | 4 |
| PV Connection | MC4 Connector |
Battery Specifications
| Specification | Details |
|---|---|
| Battery Type | Li-ion |
| Battery Voltage Range | 120–800V |
| Maximum Charge/Discharge Power | 15kW |
| Maximum Charge/Discharge Current | 50A |
| Battery Communication | CAN / RS485 |
| Battery Connection | OT Terminal |
AC Output – Grid Side
| Specification | Details |
|---|---|
| Rated Output Power | 15kW |
| Maximum Apparent Output Power | 15kVA |
| Rated Grid Voltage | 3/N/PE, 380V / 400V |
| Rated Grid Frequency | 50Hz / 60Hz |
| Rated Grid Output Current | 22.8A / 21.7A |
| Maximum Output Current | 22.8A / 21.7A |
| Power Factor | >0.99 (0.8 leading–0.8 lagging) |
| Total Harmonic Distortion (THDi) | <3% |
AC Input – Grid Side
| Specification | Details |
|---|---|
| Maximum Input Power | 22.5kW |
| Rated Input Current | 34.2A / 32.5A |
| Rated Input Voltage | 3/N/PE, 380V / 400V |
| Rated Input Frequency | 50Hz / 60Hz |
Backup Output
| Specification | Details |
|---|---|
| Rated Backup Output Power | 15kW |
| Maximum Backup Output | 2× rated power for 10 seconds |
| Backup Switching Time | <10ms |
| Rated Output Voltage | 3/N/PE, 380V / 400V |
| Rated Frequency | 50Hz / 60Hz |
| Rated Output Current | 22.8A / 21.7A |
| THDv at Linear Load | <3% |
Efficiency
| Specification | Details |
|---|---|
| Maximum Efficiency | 97.7% |
| EU Efficiency | 97.5% |
| Maximum Battery Charging Efficiency from PV/AC | 98.6% |
| Maximum Battery Discharge-to-AC Efficiency | 97.2% |
Protection Features
| Protection Feature | Details |
|---|---|
| Anti-Islanding Protection | Yes |
| Output Overcurrent Protection | Yes |
| Short-Circuit Protection | Yes |
| Integrated AFCI 2.0 | Optional |
| Integrated DC Switch | Yes |
| DC Reverse-Polarity Protection | Yes |
| PV Overvoltage Protection | Yes |
| Battery Reverse Protection | Yes |
General Specifications
| Specification | Details |
|---|---|
| Dimensions (W × H × D) | 599 × 546 × 243mm |
| Weight | 31kg / 31.7kg |
| Topology | Transformerless |
| Night-Time Self-Consumption | <25W |
| Operating Temperature | −25°C to +60°C |
| Relative Humidity | 0–95% |
| Protection Rating | IP66 |
| Cooling | Intelligent Redundant Fan Cooling |
| Maximum Operating Altitude | 2000m |
Monitoring & Communication
| Specification | Details |
|---|---|
| Display | LED |
| Monitoring | Bluetooth + App |
| Battery Communication | CAN / RS485 |
| Optional Communication | Wi-Fi, Cellular, LAN |
| PV Connection | MC4 |
| Battery Connection | OT Terminal |
| AC Connection | OT Terminal |
Grid & Safety Standards
The Solis S6-EH3P15K-H supports the following standards:
- EN 50549-1
- VDE4105
- CEI 0-21
- CEI 0-16
- NC-RFG Type B
- NRS 097-2-1 ED 2.1
- IEC/EN 62109-1/-2
- IEC/EN 61000-6-1/-3
- IEC 61000-2
Why Choose Solis S6-EH3P15K-H?
The Solis S6-EH3P15K-H 15kW Three-Phase Hybrid Inverter combines high-voltage battery support, four MPPT trackers, fast backup switching, generator networking, and parallel operation capabilities in one energy storage solution. Its 15kW output, 30kW recommended PV capacity, 97.7% maximum efficiency, and IP66 protection make it suitable for demanding residential and small commercial solar energy storage applications.
Additional Information
| Attribute | Details |
|---|---|
| Product Type | Three-Phase Hybrid Energy Storage Inverter |
| Brand | Solis |
| Model | S6-EH3P15K-H |
| Rated Power | 15kW |
| Phase | Three-Phase |
| Battery Type | Li-ion |
| Battery Voltage | 120–800V |
| Maximum PV Array Size | 30kW |
| Maximum PV Input Voltage | 1000V |
| MPPT | 4 |
| Grid Voltage | 380V / 400V |
| Frequency | 50Hz / 60Hz |
| Protection Rating | IP66 |
| Warranty | 5 Years* |
*Warranty terms may vary by supplier, region, and product batch. Confirm applicable warranty coverage before purchase.
Important Note
Specifications are based on the available technical information for the Solis S6-EH3P15K-H and may be changed or updated by the manufacturer without prior notice.
Actual solar generation, battery performance, and backup operation depend on PV array sizing, battery capacity, connected loads, grid conditions, installation environment, and system configuration. Always confirm the selected inverter model, battery compatibility, electrical requirements, and warranty terms with the supplier before installation.