Description
Takes 250 kW solar capacity across ten trackers.
125 kW continuous AC throughput with high-voltage multi-MPPT solar intake.
125 kW Continuous Output (137.5 kVA Max)
Delivers the highest continuous throughput in GoodWe's commercial hybrid range, driving heavy manufacturing machinery and fleet charging hubs.
High-Density DC Solar Intake
Captures immense daytime solar energy across large-scale industrial rooftops and ground mounts.
Heavy Commercial Battery Interface
Directly pairs with high-capacity liquid-cooled battery containers for dynamic peak shaving and frequency regulation.
Full Facility Emergency Backup Support
Integrates with external static transfer switchgear (STS) to sustain complete facility operations during grid outages.
More product details
Extensive industrial rooftops need immense DC generation without splitting the array across multiple inverters. Ten independent MPPT channels handle 250 kW of solar input at 42 A per tracker. Twenty individual strings link directly into a single wall-mounted 125 kW unit.
Runs 137.5 kW on high-voltage commercial storage.
The dedicated high-voltage storage interface moves 137.5 kW continuous power. Continuous current reaches 180 A during heavy charge and discharge cycles. Backup operation delivers 125 kVA nominal power when paired with an external static transfer switch. Intelligent air cooling maintains thermal stability inside the 98 kg IP66 cabinet.
Fits 250 kW across ten MPPT channels
Ten MPPT trackers handle 42 A each with 2 strings per tracker. Operating voltage spans 160 to 1000 V with a 1100 V maximum input rating.
Takes 137.5 kW on a 700 to 1000 V battery bus
The battery port operates from 700 to 1000 V with a 750 V nominal rating. Continuous charge and discharge current reaches 180 A.
Holds 125 kVA backup with an external STS
Backup power provides 125 kVA nominal and 137.5 kVA peak with an STS on the path. Switchover time occurs in under 10 ms.
Technical data
GOODWE ETR 125KW
125 kW continuous AC throughput with high-voltage multi-MPPT solar intake.
Maxing out GoodWe's commercial hybrid inverter range, the ETR 125 kW delivers 125 kW continuous AC power (137.5 kVA max) for utility-scale solar farms, large industrial parks, and microgrids. It combines high-current MPPT tracking with an industrial battery interface, providing the foundation for megawatt-scale commercial storage projects.
- Delivers the highest continuous throughput in GoodWe's commercial hybrid range, driving heavy manufacturing machinery and fleet charging hubs.
- 125 kW Continuous Output (13
- Captures immense daytime solar energy across large-scale industrial rooftops and ground mounts.
- High-Density DC Solar Intake
- Directly pairs with high-capacity liquid-cooled battery containers for dynamic peak shaving and frequency regulation.
- Heavy Commercial Battery Int
- Integrates with external static transfer switchgear (STS) to sustain complete facility operations during grid outages.
- Full Facility Emergency Back
AC Output (On-Grid)
- Rated / max. power
- 125.0 kW rated / 137.5 kW max (GW125K-ETR-G10)
- Rated / max. apparent power
- 125.0 kVA / 137.5 kVA
- Rated / max. current at 400 V
- 180.5 A / 198.5 A
- Nominal voltage
- 220/380, 230/400, 240/415 V, 3L/N/PE, 50/60 Hz
- Power factor / THDi
- ~1, adjustable 0.8 leading - 0.8 lagging / THDi <3%
PV Input
- Max. PV input power
- 250 kW (200% of AC rating)
- Max. input voltage
- 1,100 V (standby above 1,000 V)
- MPPT operating voltage range
- 160-1,000 V; start-up 200 V; nominal 620 V
- MPPTs / strings
- 10 MPPTs, 2 strings per MPPT
- Max. MPPT current / short-circuit current
- 42 A / 55 A per MPPT
Battery Interface
- Battery type / voltage window
- LFP700-1,000 V, nominal 750 V, start-up 700 V, one battery connection port
- Max. charge / discharge power
- 137.5 kW
- Max. continuous charge / discharge current
- 180.0 A
- Compatible battery system
- GoodWe BAT-C 208.9 / 261.2 kWh cabinetswith the GW261.2-BAT-LCD-G10, PV string open-circuit voltage must exceed 813 V
Backup (with STS)
- Nominal / max. backup apparent power
- 125.0 kVA / 137.5 kVA, an STS Box or STS Cabinet is required for the backup side
- Peak output power without grid
- 120% for 60 s; 150% for 10 s
- On/off-grid switching time
- <10 ms (one unit)
Efficiency & General
- Max. / European efficiency
- 98.1% / 97.7%
- Max. battery-to-AC efficiency
- 98.2%
- Enclosure / environment
- IP66, -35 to +60 C, 0-100% RH, max. 4,000 m, intelligent air cooling, noise 60 dB
- Dimensions / weight / mounting
- 995 x 758 x 358 mm / 98 kg / wall-mounted
- Communication
- RS485, Wi-Fi, LAN, Bluetooth, 4GModbus TCP (SunSpec compatible) · CAN to BMS · LED + optional LCD + app
- Integrated protections
- PV string current monitoring, internal humidity monitoring, insulation detection, RCM, reverse-polarity (PV and battery), anti-islanding, AC over-current/short-circuit/over-voltage, DC switch, Type II DC SPD (Type I+II optional), Type II AC SPDAFCI/EPO/rapid shutdown optional
In the project
Scenes from real projects.
Real installations with this model in place.
Illustration: GW125K-ETR-G10 125 kW inverter receiving up to 250 kW PV generation.
Illustration: GoodWe 125 kW hybrid unit connected to high-voltage 700 to 1000 V battery storage.
Documents
GoodWe ETR Series Datasheet (EN)Product questions
What total PV array capacity can connect to the GW125K-ETR-G10?
250 kW of PV input across ten MPP trackers.
- String capacity: 20 strings total (2 per MPPT).
- Tracker current: 42 A nominal, 55 A short-circuit.
- Voltage window: 160 to 1000 V operating, 1100 V maximum.
What battery specifications are supported on the GW125K-ETR-G10?
One high-voltage battery port from 700 to 1000 V DC.
- Power: 137.5 kW continuous charge and discharge.
- Current: 180 A maximum continuous current.
- Nominal voltage: 750 V.
Does the GW125K-ETR-G10 require an STS for backup operation?
Yes. An STS unit is required on the backup path.
- Backup capacity: 125 kVA nominal, 137.5 kVA maximum.
- Transfer time: under 10 ms on a single unit.
- Rated AC current: 180.5 A at 400 V.
What are the dimensions, weight and cooling for the GW125K-ETR-G10?
Wall-mounted IP66 enclosure measuring 995 x 758 x 358 mm at 98 kg.
- Cooling: intelligent air cooling at 60 dB.
- Temperature range: minus 35 to plus 60 C.
- Communications: RS485, Wi-Fi, LAN, Bluetooth, 4G, and CAN.
System components
Required components
GoodWe GM330 three-phase CT meter
Item number: DLK-GOODWE-GM330
C&I export limitation and self-consumption control need a CT-based measurement at the grid connection point; the GM330 is GoodWe's CT meter for this role.
MBS KBU 58 split-core CT, 400/5 A (set of 3, size to main incomer)
Item number: DLK-MBS-KBU58-400-5A
Split-core CTs for the metering point on larger mains, retrofit without opening the busbar. Choose the ratio (400/5 up to 1000/5 in our range) to match the site's main incomer.
Recommended components
GoodWe BAT-C 261.2 kWh battery cabinet (GW261.2-BAT-LCD-G10)
Item number: DLK-GOODWE-GW2612BATLCDG10
The named compatible storage for the ETR: turns the PV plant into peak shaving, self-consumption and backup. Mind the datasheet constraint that PV string open-circuit voltage must exceed 813 V with this cabinet.
GoodWe EzLogger3000C
Item number: DLK-GOODWE-EZLOGGER3000C
Plant-level data logging and management for C&I sites, collects the inverters into one monitored plant with remote parameter access.
Optional components
GoodWe BAT-C 208.9 kWh battery cabinet (GW208.9-BAT-LCD-G10)
Item number: DLK-GOODWE-GW2089BATLCDG10
The smaller of the two compatible BAT-C cabinets, where the load profile needs less energy per converter.
GoodWe SEC3000C Smart Energy Controller
Item number: DLK-GOODWE-SEC3000C
Site-level power control and export limitation when several inverters must be coordinated against one grid-connection limit.