The Solis S6-EH3P30K-H is a 30kW three-phase high voltage energy storage inverter built for commercial and large residential solar-plus-storage systems. With a recommended max. PV array size of 60kW, a wide 150-800V battery voltage range, and two independently controlled battery ports each supporting up to 70A, it's engineered for high-power PV installations that need flexible battery scaling and robust backup performance.
70A x2
Max. Charge/Discharge Current
Installer note — grid compliance & high voltage battery: This inverter is certified to G98 or G99 under the manufacturer's listed grid connection standards. Battery voltage operates up to 800V, so installation, isolation, and commissioning must strictly follow the manufacturer's high-voltage safety procedures. Confirm DNO notification requirements and use an MCS-accredited or suitably qualified commercial installer before commissioning.
Backup overload rating differs from the S6-EH3P(12-20)K-H range: This 30-50K platform is rated at 1.6 times rated power for 2 seconds in backup mode, a shorter duration than the 2-second-to-10-second window quoted on the smaller S6-EH3P(12-20)K-H models. Confirm the correct surge duration for the specific model being quoted, particularly where motor-driven backup loads are involved.
Battery compatibility: Compatible with Li-ion battery systems operating within the 150-800V range across two independently controlled battery ports. Always confirm compatibility against the current Solis approved battery list before specifying a system, given the high voltage architecture of this platform.
Four Integrated High-Current MPPTs
Four MPPTs with a string current capacity of up to 20A each support a recommended PV array of up to 60kW, making this inverter compatible with high-power PV modules from any manufacturer without derating.
Dual Independent Battery Ports
Two independently controlled battery ports, each supporting up to 70A of charge/discharge current, allow flexible battery bank scaling and let different battery types or ages be managed separately within the same system.
Generator Connectivity with Automatic Control
Supports multiple generator input methods with automatic On/Off control, allowing a backup generator to recharge the battery and support loads during extended outages without manual intervention.
Peak Shaving in Self-Use & Generator Modes
Supports peak shaving control in both self-use and generator operating modes, helping commercial and large residential sites manage demand charges and smooth load spikes.
Scalable Parallel Operation
Supports parallel operation of up to 6 units for both on-grid and off-grid applications, allowing the same platform to scale from a single commercial installation to a much larger multi-inverter system.
Grid-Tied Operation Without Battery
The inverter can work as a standard grid-tied inverter without a battery connected while on-grid, giving installers flexibility to phase in battery storage at a later date on the same hardware.
Input DC (PV Side)
| Recommended max. PV array size |
60 kW |
| Max. usable PV input power |
60 kW |
| Max. input voltage |
1000 V |
| Rated voltage |
600 V |
| Start-up voltage |
180 V |
| MPPT voltage range |
150-850 V |
| Max. input current |
4 x 40 A |
| Max. short circuit current |
4 x 60 A |
| MPPT number / max. input strings number |
4 / 8 |
Battery
| Battery type |
Li-ion |
| Battery voltage range |
150-800 V |
| Max. charge / discharge power |
33 kW |
| Max. charge / discharge current |
70 A x 2 |
| No. of battery inputs |
2 |
| Max. charge / discharge power of each input |
33 kW |
| Communication |
CAN / RS485 |
Output AC (Grid Side)
| Rated output power |
30 kW |
| Max. apparent output power |
30 kVA |
| Rated grid voltage |
3/N/PE, 220 V / 380 V, 230 V / 400 V |
| Rated grid frequency |
50 Hz / 60 Hz |
| Rated / max. output current |
45.6 A / 43.3 A |
| Power factor |
>0.99 (0.8 leading – 0.8 lagging) |
| THDi |
<3% |
Input AC (Grid Side)
| Max. AC passthrough current |
91.2 A / 86.6 A |
| Rated input voltage |
3/N/PE, 220 V / 380 V, 230 V / 400 V |
| Rated input frequency |
50 Hz / 60 Hz |
Input Generator
| Max. input power |
30 kW |
| Rated input current |
45.6 A / 43.3 A |
| Rated input voltage |
3/N/PE, 220 V / 380 V, 230 V / 400 V |
| Rated input frequency |
50 Hz / 60 Hz |
Output AC (Backup)
| Rated output power |
30 kW |
| Max. apparent output power |
1.6x rated power, 2 s |
| Back-up switch time |
<10 ms |
| Rated output voltage |
3/N/PE, 220 V / 380 V, 230 V / 400 V |
| Rated frequency |
50 Hz / 60 Hz |
| Rated output current |
45.6 A / 43.3 A |
| THDv (@linear load) |
<2% |
Efficiency
| Max. efficiency |
97.8% |
| EU efficiency |
97.4% |
| Battery charged by PV max. efficiency |
98.5% |
| Battery charged/discharged to AC max. efficiency |
97.5% |
Protection
| Anti-islanding protection |
Yes |
| Output over current protection |
Yes |
| Short circuit protection |
Yes |
| Integrated DC switch |
Optional |
| DC reverse-polarity protection |
Yes |
| Surge protection |
DC Type II / AC Type II |
| Integrated AFCI (DC arc-fault protection) |
Yes (activation required) |
General Data
| Dimensions (W x H x D) |
530 x 880 x 290 mm |
| Weight |
73 kg |
| Topology |
Non-isolated |
| Self-consumption (night) |
<25 W |
| Operating ambient temperature range |
-25°C to +60°C |
| Relative humidity |
0-95% |
| Ingress protection |
IP66 |
| Cooling concept |
Intelligent redundant fan-cooling |
| Max. operation altitude |
4000 m |
Connections & Compliance
| PV connection |
MC4 quick connection plug |
| Battery connection |
Terminal connector |
| AC connection |
Terminal block |
| Display |
LED + Bluetooth + App |
| Communication |
CAN, RS485, Ethernet; optional Wi-Fi, Cellular, LAN |
| Safety / EMC standard |
IEC/EN 62109-1/-2, IEC/EN 61000-6-1/-3 |
| Grid connection standard |
G98 or G99, VDE-AR-N 4105, EN 50549-1, CEI 0-21, NRS 097-2-1, IEC 62116, IEC 61727, IEC 60068, IEC 61683, EN 50530 |
Frequently Asked Questions
What size PV array can be connected to this inverter?
The inverter supports a recommended maximum PV array size of 60kW across four MPPT inputs, each rated at 40A, making it suitable for high-power PV modules from any manufacturer without derating.
Can two different battery banks be connected at once?
Yes. The inverter has two independently controlled battery ports, each supporting up to 70A of charge/discharge current, allowing separate battery banks — potentially of different ages or types — to be managed within the same system.
How fast is the backup power switchover, and how long does the overload rating last?
The manufacturer's datasheet specifies a switchover time of under 10ms, with backup output rated at 1.6 times rated power for 2 seconds. This is a shorter overload window than the smaller S6-EH3P(12-20)K-H models, so motor-starting loads should be checked against this specific rating.
Can this inverter be used with a backup generator?
Yes. It supports multiple generator input methods with automatic On/Off control, allowing a generator to recharge the battery and support loads during extended outages without manual intervention.
Can multiple units be combined for a larger system?
Yes. Up to 6 units can be operated in parallel for both on-grid and off-grid applications, allowing the platform to scale well beyond a single commercial installation.
Does this inverter support UK grid connection standards?
Yes, the series is certified to G98 or G99 under the manufacturer's listed grid connection standards. Installers should confirm current DNO notification requirements based on total system export capacity before commissioning.
