Solis S6-EH3P15K-H 15 kW 3-Phase High-Voltage Hybrid Inverter
€2,299.00
The Solis S6-EH3P15K-H is a 15 kW 3-phase hybrid inverter with 4 MPPT inputs, up to 24 kW of PV power and 120–800 V HV batteries.
- Free delivery across Lithuania
- 14-day returns — we pay for the return shipping
- Manufacturer warranty, CE compliant
The Solis S6-EH3P15K-H is a 15 kW 3-phase high-voltage (HV) hybrid inverter with the same dimensions (563 × 546 × 250 mm) and weight (35.2 kg) as the 20 kW S6-EH3P20K-H, but a lower power rating. It accepts up to 24 kW of PV power (recommended PV array up to 30 kW), its battery charge, discharge and backup output power is 15 kW, and its maximum efficiency is 97.7 %. Choose it if you plan up to 24 kW of PV power and up to 15 kW of backup loads; the S6-EH3P20K-H is the one for a larger site.
Technical specifications
| Parameter | Value |
|---|---|
| Model | S6-EH3P15K-H |
| Type | 3-phase hybrid (energy storage) inverter for high-voltage (HV) batteries |
| Nominal power (grid) | 15 kW / 15 kVA |
| Phases and grid voltage | 3/N/PE, 220/380 V or 230/400 V; 50/60 Hz |
| Nominal grid current | 22.8 A / 21.7 A |
| Power factor | > 0.99 (0.8 inductive to 0.8 capacitive) |
| THDi | < 3 % |
| Max. usable PV input power | 24 kW (160 % of nominal) |
| Recommended max. PV array size | 30 kW |
| Max. PV input voltage | 1000 V |
| Rated PV voltage | 600 V |
| Start-up voltage | 160 V |
| MPPT voltage range | 200–850 V (300–850 V at full load) |
| MPPT trackers / max. strings | 4 / 4 |
| Max. input current | 4 × 20 A (up to 20 A per input) |
| Max. short-circuit current | 4 × 30 A |
| Battery type | lithium-ion (Li-ion) |
| Battery voltage range | 120–800 V |
| Max. charge / discharge current | 50 A |
| Max. charge / discharge power | 15 kW |
| Battery connections | 1 battery port, 1 BMS port; CAN / RS485 communication |
| Max. AC input power (from grid) | 22.5 kW (34.2 A / 32.5 A) |
| Backup output | 15 kW; 3-phase 3/N/PE 220/380 V, 230/400 V |
| Backup output overload | up to 160 % of nominal power for 10 s |
| Switchover time to backup | < 10 ms (single inverter); < 20 ms in a parallel system of up to 6 inverters |
| THDv (linear load) | < 3 % |
| Generator input | max. 15 kW; 3-phase generator only, power not above the inverter’s nominal power |
| Max. efficiency | 97.7 % |
| EU efficiency | 97.5 % |
| Battery charging from PV, max. efficiency | 98.5 % |
| Battery charging/discharging to AC, max. efficiency | 97.2 % |
| MPPT efficiency | 99.9 % |
| Unbalanced load per phase (grid and backup) | up to 50 % of nominal power per phase |
| Protections | anti-islanding, insulation resistance monitoring, residual current monitoring, overcurrent protection, integrated DC switch, reverse DC polarity protection; DC/AC Type II surge protection optional |
| AFCI 2.0 (arc-fault detection) | optional |
| Ingress protection (IP) | IP66 |
| Dimensions (W × H × D) | 563 × 546 × 250 mm |
| Weight | 35.2 kg |
| Noise (typical) | < 65 dB(A) |
| Operating temperature | −25 … +60 °C |
| Max. operating altitude | 2000 m |
| Topology | transformerless |
| Night-time self-consumption | < 25 W |
| Cooling | intelligent (redundant) fan cooling |
| Connectors | PV – MC4; battery – lever terminal; AC – OT terminals |
| Display and control | 7.0-inch LCD, Bluetooth + app; monitoring via SolisCloud |
| Connectivity | Wi-Fi + LAN + Bluetooth as standard; CAN-BMS, CAN-parallel × 2, RS485 (meter), DRM, DI, DO × 3 |
| Parallel connection | up to 6 identical inverters; battery ports are not connected in parallel; cable between inverters ≤ 5 m |
| Operating modes | self-use, feed-in priority, off-grid; peak shaving |
| Grid connection standards | EN 50549-1/-10, VDE4105, CEI 0-21, CEI 0-16, NC-RFG Type B, NRS 097-2-1, G99 |
| Safety / EMC standards | IEC/EN 62109-1/-2, IEC/EN 61000-6-1/-2/-3/-4 |
Download the manufacturer datasheet (PDF)
How the Solis S6-EH3P15K-H differs from the S6-EH3P20K-H
| Parameter | Solis S6-EH3P15K-H | Solis S6-EH3P20K-H |
|---|---|---|
| Nominal power | 15 kW | 20 kW |
| Battery charge / discharge, backup output and generator input power | 15 kW | 20 kW |
| Max. usable PV input power | 24 kW | 32 kW |
| Recommended max. PV array size | 30 kW | 40 kW |
| Nominal grid current | 22.8 A / 21.7 A | 30.4 A / 28.9 A |
| Unbalanced load per phase | up to 50 % of nominal power | up to 40 % of nominal power |
Choose the S6-EH3P15K-H if you plan up to 24 kW of PV power and up to 15 kW of backup loads. If you need more PV power (up to 32 kW) or backup loads of up to 20 kW, choose the Solis S6-EH3P20K-H. Both inverters have the same 4 MPPT inputs, 120–800 V batteries, 50 A charge and discharge current, 97.7 % maximum efficiency, IP66 protection and a weight of 35.2 kg, and the two models cannot be connected in parallel with each other.
What is a 15 kW 3 phase hybrid inverter with a battery suited for?
The Solis S6-EH3P15K-H suits large homes and small commercial PV systems with energy storage where 15 kW of grid and backup power is enough. Four MPPT inputs suit roofs facing different directions or with a complex module layout.
- Homes that want to use their own solar power: the inverter runs in self-use, feed-in priority and off-grid modes and also supports peak shaving.
- Sites that need backup power: when the grid fails, the system switches to off-grid and supplies the backup loads.
- Systems on time-of-use tariffs: battery charging and discharging is controlled by TOU tariffs.
- Homes with a heat pump: the inverter controls the heat pump if it carries the SG Ready label.
- Systems you plan to expand: up to 6 identical inverters can be connected in parallel.
How many solar panels can I connect to a 15 kW hybrid inverter?
Up to 24 kW of PV power (160 % of nominal) can be used with the Solis S6-EH3P15K-H, and the manufacturer recommends a PV array of no more than 30 kW. The inverter has 4 MPPT inputs and up to 4 strings, with up to 20 A allowed per input. The MPPT voltage range is 200–850 V (300–850 V at full load), the maximum PV input voltage is 1000 V and the start-up voltage is 160 V.
Which batteries work with the Solis S6-EH3P15K-H?
The Solis S6-EH3P15K-H connects to high-voltage (HV) lithium-ion batteries with a voltage range of 120–800 V. The inverter has one battery port and one BMS port, communicates with the battery over CAN or RS485, and the maximum charge and discharge current is 50 A at 15 kW. Each battery connects to the inverter over its own CAN line and is controlled by it, and battery ports are not connected in parallel. The manufacturer publishes the list of compatible batteries, so Hybrid Energy checks every set against it before offering it.
Will the house keep running in a power cut? Backup power and generator
Yes. When the grid fails, the Solis S6-EH3P15K-H switches the system to backup power in under 10 ms and supplies backup loads of up to 15 kW.
- The backup output is 3-phase (3/N/PE, 230/400 V), with an overload of up to 160 % of nominal power for 10 s.
- An unbalanced load can reach up to 50 % of nominal power on one phase.
- Only a 3-phase generator can be connected, with a power not above the inverter’s nominal power (up to 15 kW). With a low battery level and no grid, the system can start the generator to supply the loads and charge the battery.
- A generator must not run together with a grid-tied inverter, because the generator may be damaged. In a parallel system it is recommended to connect the generator through an ATS.
How do I connect a hybrid inverter to the grid and a battery?
The Solis S6-EH3P15K-H connects to a 3-phase 3/N/PE grid and meets grid connection standards including EN 50549-1/-10 and VDE4105. The nominal grid current is 22.8 A / 21.7 A and the maximum AC input power from the grid is 22.5 kW. The system needs a CT or a smart meter; you can monitor it through SolisCloud and the Bluetooth app.
A hybrid inverter can do more than export surplus power to the grid; it can keep it for yourself. ESO (Lithuanian grid operator) states:
“Part of the surplus electricity generated can be stored in an energy storage device and used in the evening.”
We handle it for you. We select the equipment for your site, deliver anywhere in Lithuania, install and connect it. The consultation before you buy is free.
Frequently asked questions
What is the power of the Solis S6-EH3P15K-H?
The Solis S6-EH3P15K-H is a 3-phase hybrid inverter rated 15 kW (15 kVA), and its backup output is also 15 kW.
How much PV power can I connect to the Solis S6-EH3P15K-H?
Up to 24 kW of PV power (160 % of nominal) can be used with the Solis S6-EH3P15K-H, and the recommended maximum PV array size is 30 kW.
How does the Solis S6-EH3P15K-H differ from the S6-EH3P20K-H?
The S6-EH3P15K-H is a 15 kW inverter that accepts up to 24 kW of PV power, while the S6-EH3P20K-H is a 20 kW inverter that accepts up to 32 kW. The dimensions (563 × 546 × 250 mm), weight and 4 MPPT inputs are the same.
What batteries work with the Solis S6-EH3P15K-H?
The Solis S6-EH3P15K-H works with high-voltage lithium-ion batteries in the 120–800 V range. Hybrid Energy checks compatibility against the manufacturer’s list before offering a set.
How fast does the Solis S6-EH3P15K-H switch to backup power?
The Solis S6-EH3P15K-H switches to backup power in under 10 ms, or under 20 ms in a parallel system of up to 6 inverters.
Can I connect a generator to the Solis S6-EH3P15K-H?
Yes, but only a 3-phase generator with a power not above the inverter’s nominal power, that is up to 15 kW.
How many Solis S6-EH3P15K-H inverters can run in parallel?
Up to 6 identical inverters can be connected in parallel; different models cannot be mixed. Battery ports are not connected in parallel. This means the S6-EH3P15K-H cannot be paralleled with the S6-EH3P20K-H.
Can the Solis S6-EH3P15K-H control a heat pump?
Yes, the Solis S6-EH3P15K-H controls a heat pump if it carries the SG Ready label.
What are the IP rating and operating temperature of the Solis S6-EH3P15K-H?
The Solis S6-EH3P15K-H has IP66 protection and operates from −25 °C to +60 °C.
Does Hybrid Energy deliver and install the Solis S6-EH3P15K-H?
Yes. Hybrid Energy selects the system for your site, delivers it anywhere in Lithuania, installs it and connects the Solis S6-EH3P15K-H. The consultation before you buy is free.
Sources
| Power | 15 kW |
|---|---|
| Phases | Three-phase |
| Brand | Solis |
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