125kW Hybrid Inverter for Commercial Energy Storage

Name: 125kW Hybrid Inverter - ETEK Electri
SKU: HES 125kW HT

The ETEK 125kW hybrid inverter combines up to 250kW of PV input, two independent battery ports and 160% backup overload capability. With seamless on/off-grid switching under 10ms, it delivers dependable commercial solar-plus-storage power.

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ModelHES 125kW HT

CategoryHybrid Solar Inverters, Solar Inverters

AvailabilityIn stock

CE & TUV certified
Worldwide shipping
OEM & ODM support

Product Features of 125kW Hybrid Inverter

The 125kW hybrid inverter HES 125kW HT is engineered for high-power PV and storage projects, with the following unique and leading features:

Unique Features

Usable PV power up to 200% of the inverter rated power, improving PV generation utilization.
Supports max 21A PV input current, a perfect match for high-power PV modules.
Compatible with 100-314Ah battery modules.
Faster charging with battery current up to 200A.
Powerful backup overload capability: 160% overload.
Wide generator connection range from 25kVA to 125kVA.
2 independent battery connections for flexible configuration.
7-inch large screen using U.S.-made ZEITLER industrial-grade components.

Leading Features

Flexible PV connection through DC and AC coupling for retrofitting and expanding.
Battery reserve function in multiple scenarios.
Smart Load Prioritizing: extends support for critical loads.
Smart Load/GEN/INV port for flexible connection of grid-tied inverters, diesel generators, wind turbines, and other sources.
Seamless on-grid/off-grid switching time <10ms.
Up to 10 units in parallel; above 6 units, an ETEK power distribution cabinet is recommended.

Commercial Applications of 125kW Hybrid Inverter

In a hybrid system, solar power first supplies the load, surplus energy charges the battery, and any further surplus is fed back to the grid. When solar generation is insufficient, battery and grid power supplement the supply. A 125kW hybrid inverter brings this logic to commercial and industrial sites that need high supply continuity.

Applications & Use Cases

Peak shaving and demand management for commercial loads.
Relieving grid congestion in areas with high solar penetration.
Participation in electricity market services such as virtual power plants (VPPs).
Seamless backup power for scenarios requiring high supply continuity (<10ms switching).
Critical-load support through Smart Load Prioritizing.
Retrofitting and expanding existing PV through AC and DC coupling.
Hybrid sites combining grid-tied inverters, diesel generators (25-125kVA) or wind turbines.
Off-grid and backup operation as a three phase hybrid inverter in 3/N/PE 220/380V or 230/400V networks.

Technical Specifications of 125kW Hybrid Inverter

Full datasheet values for the 125kW hybrid inverter HES 125kW HT are listed below.

Input DC (PV side)
Recommended max. PV array size	250kW
Max. usable PV input power	250kW
Max. input voltage	1000V
Rated voltage	600V
Start-up voltage	180V
MPPT voltage range	150-950V
Max. input current	10 x 42A
Max. short circuit current	10 x 60A
MPPT number / max. input strings	10 / 20
Battery
Battery type	Li-ion
Battery voltage range	300-950V
Max. charge/discharge current	200A / 100A+100A
Number of battery ports	2
Max. charge/discharge current per port	100A
Communication	CAN / RS485
Max. battery energy	256kWh
Output AC (Grid side)
Rated output power	125kW
Max. apparent output power	125kVA
Rated grid voltage	3/N/PE, 220/380V, 230/400V
Rated grid frequency	50/60Hz
Rated grid output current	189.9A / 180.4A
Power factor	>0.99 (0.8 leading – 0.8 lagging)
THDi	3%
Input AC (Grid side)
Max. input current	250A
Output AC (Back-up)
Rated output power	125kW
Max. apparent output power	1.2x rated, 100s; 1.4x rated, 10s; 1.6x rated, 200ms
Back-up switch time	<10ms
Rated output voltage	3/N/PE, 220/380V, 230/400V
Rated frequency	50/60Hz
THDv (@linear load)	<2%
Input AC (Generator)
Rated output power	125kW
Max. apparent output power	125kVA
Rated grid voltage	3/N/PE, 220/380V, 230/400V
Rated grid frequency	50/60Hz
Efficiency
Max. efficiency	97.6%
EU efficiency	97.2%
BAT charged/discharged to AC max. efficiency	97.0%
Protection
Anti-islanding protection	Yes
Output overcurrent protection	Yes
Short circuit protection	Yes
Integrated DC switch	Yes
DC reverse-polarity protection	Yes
Surge protection	DC Type II / AC Type II
Integrated AFCI 2.0	Optional (Brazil: yes)
Protection class / overvoltage category	I / II
General Data
Max. allowable phase imbalance (grid & back-up)	100%
Max. power per phase (grid & back-up)	41.66kW
Topology	Transformerless
Operating ambient temperature	-25 to +60°C
Relative humidity	0-100%
Ingress protection	IP66
Cooling concept	Intelligent fan-cooling
Max. operating altitude	3000m
Features
PV connection	MC4 quick connection plug
Battery connection	Terminal connector
AC connection	Terminal block
Display	7.0″ LCD display & Bluetooth + APP
Communication	CAN, RS485-115200, Ethernet; optional Wi-Fi, Cellular, LAN
Standards
Grid connection standard	G99, VDE-AR-N4105/VDE-V0124, EN50549-1&2/EN50549-10, VDE0126/UTE C15/VFR:2019, NTS631/RD1699/RD244/UNE206006/UNE206007-1, CEI0-21, C10/11, NRS097-2-1, TOR, EIFS2018.2, IEC62116, IEC61727, IEC60068, IEC61683, EN50530, MEA, PEA, PORTARIA No.140
Safety / EMC standard	IEC/EN62109-1/-2, IEC/EN61000-6-2/-4, EN55011

Dimensions and Wiring of 125kW Hybrid Inverter

The 125kW hybrid inverter measures 1174 x 814 x 400mm (W x H x D) and weighs 170kg. It is IP66 rated, uses intelligent fan cooling and operates from -25 to +60°C at up to 3000m.

Dimensions (W x H x D)	1174 x 814 x 400mm
Weight	170kg
PV connection	MC4 quick connection plug
Battery connection	Terminal connector
AC connection	Terminal block
Communication	CAN, RS485, Ethernet; optional Wi-Fi, Cellular, LAN

Wiring follows the standard hybrid topology below: the grid and generator connect through an ATS to the house, PV and battery connect to the inverter on DC, and the inverter feeds the back-up load on its AC output. A 3 phase solar inverter off grid layout uses the same back-up load and generator connections.