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GoodWe ETR 125 kW (C&I three-phase hybrid inverter, 1000V)
GoodWe PV Hardware

GoodWe ETR 125 kW (C&I three-phase hybrid inverter, 1000V)

Battery-ready 125 kW three-phase C&I hybrid: run it as a pure PV inverter today and add GoodWe BAT-C 208/261 kWh battery cabinets later — peak shaving, self-consumption, backup and microgrid without replacing the inverter.

  • 125 kW rated / 137.5 kW max with up to 250 kWp PV on 10 MPPTs (42 A per MPPT, 2 strings each)
  • Battery-ready: 700-1000 V DC interface, up to 137.5 kW charge/discharge — storage added when the business case lands
  • On/off-grid switching <10 ms (one unit, with STS box) and 150%/10 s off-grid peak for motor starts
  • IP66, -35 to +60 C, wall-mounted at 98 kg · German PV-wholesale stock · request a quote
125 kW
Rated AC power
three-phase
Phase
Manufacturer
GoodWe
Model code
GW125K-ETR-G10
Item no.
DLK-GOODWE-ETR125
Delivery
Germany delivery estimate: EUR 65–200 · The final delivery charge is included in your Proforma.
Orderable · lead time confirmed after order

Plan with GW125K-ETR-G10

New system, extension or replacement? Linker Advisor starts from this article and asks only for what is still open — existing model, quantity, postcode, installation date.

Trade price
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Required to install — not in the box
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.
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MBS KBU 58 400/5 A split-core current transformer, Class 0.5 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.
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Figures transcribed from the manufacturer datasheet on file. Confirm your grid code and configuration with our engineers before ordering.

  • GoodWe · SAJ · Pylontech · EcoFlow · Chint paired from the maker’s own lists
  • Datasheets on file for every item
  • Within 24 h engineering response
  • MOQ 1 unit · EU delivery
  • Engineering-checked configurations
GW125K-ETR-G10, specified from the datasheet.
System logic

GW125K-ETR-G10, specified from the datasheet.

Every value on this page is transcribed from the manufacturer documentation on file.

125 kW rated / 137.5 kW max with up to 250 kWp PV on 10 MPPTs (42 A per MPPT, 2 strings each)
Battery-ready: 700-1000 V DC interface, up to 137.5 kW charge/discharge — storage added when the business case lands
On/off-grid switching <10 ms (one unit, with STS box) and 150%/10 s off-grid peak for motor starts
In pictures

Inspect it before you spec it.

Official renders, installation photos and system panels for this model line.

Official manufacturer product render
Product

Official manufacturer product render

Documentation

Specifications

Every value exactly as published in the official GW125K-ETR-G10 documentation.

Rated / max. power125.0 kW rated / 137.5 kW max (GW125K-ETR-G10)
Rated / max. apparent power125.0 kVA / 137.5 kVA
Rated / max. current at 400 V180.5 A / 198.5 A
Nominal voltage220/380, 230/400, 240/415 V, 3L/N/PE, 50/60 Hz
Power factor / THDi~1, adjustable 0.8 leading - 0.8 lagging / THDi <3%
Max. PV input power250 kW (200% of AC rating)
Max. input voltage1,100 V (standby above 1,000 V)
MPPT operating voltage range160-1,000 V; start-up 200 V; nominal 620 V
MPPTs / strings10 MPPTs, 2 strings per MPPT
Max. MPPT current / short-circuit current42 A / 55 A per MPPT
Battery type / voltage windowLFP700-1,000 V, nominal 750 V, start-up 700 V, one battery connection port
Max. charge / discharge power137.5 kW
Max. continuous charge / discharge current180.0 A
Compatible battery systemGoodWe BAT-C 208.9 / 261.2 kWh cabinetswith the GW261.2-BAT-LCD-G10, PV string open-circuit voltage must exceed 813 V
Nominal / max. backup apparent power125.0 kVA / 137.5 kVA — an STS Box or STS Cabinet is required for the backup side
Peak output power without grid120% for 60 s; 150% for 10 s
On/off-grid switching time<10 ms (one unit)
Max. / European efficiency98.1% / 97.7%
Max. battery-to-AC efficiency98.2%
Enclosure / environmentIP66, -35 to +60 C, 0-100% RH, max. 4,000 m, intelligent air cooling, noise 60 dB
Dimensions / weight / mounting995 x 758 x 358 mm / 98 kg / wall-mounted
CommunicationRS485, Wi-Fi, LAN, Bluetooth, 4GModbus TCP (SunSpec compatible) · CAN to BMS · LED + optional LCD + app
Integrated protectionsPV 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
Full datasheet (PDF) Ask an engineer
ProductGoodWe ETR 125 kW (C&I three-phase hybrid inverter, 1000V)

Complete the system

Balance-of-system and accessories paired with this model. Every pairing follows the manufacturer's official compatibility list.

Required
GoodWe GM330 three-phase CT meter
[1]

GoodWe GM330 three-phase CT meter

C&I export limitation and self-consumption control need a CT-based measurement at the grid connection pointthe GM330 is GoodWe's CT meter for this role.
View product →
MBS KBU 58 split-core CT, 400/5 A (set of 3, size to main incomer)
[2]

MBS KBU 58 split-core CT, 400/5 A (set of 3, size to main incomer)

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.
View product →
Recommended
Optional
GoodWe BAT-C 208.9 kWh battery cabinet (GW208.9-BAT-LCD-G10)
[1]

GoodWe BAT-C 208.9 kWh battery cabinet (GW208.9-BAT-LCD-G10)

The smaller of the two compatible BAT-C cabinets, where the load profile needs less energy per converter.
View product →
GoodWe SEC3000C Smart Energy Controller
[2]

GoodWe SEC3000C Smart Energy Controller

Site-level power control and export limitation when several inverters must be coordinated against one grid-connection limit.
View product →

Configuration 3

Yes, that is the design intent: the ETR operates as a full 125 kW PV inverter from day one, and the storage system is added later on the 700-1,000 V battery interface without replacing the inverter.

  • Compatible batteries: GoodWe names the BAT-C 208.9 and 261.2 kWh cabinets, enabling self-consumption, peak shaving, backup and microgrid operation
  • Planning constraint: with the GW261.2-BAT-LCD-G10 cabinet, the PV string open-circuit voltage must exceed 813 V

Yes, but the backup side requires a GoodWe STS Box or STS Cabinet (static transfer switch) in front of the protected loads, since the ETR does not carry an internal bypass like GoodWe’s residential all-in-ones.

  • Switchover: under 10 ms with the STS in place
  • Off-grid overload: 120% for 60 s, 150% for 10 s for motor starting

The ETR carries RS485, Wi-Fi, LAN, Bluetooth and 4G with Modbus TCP (SunSpec compatible), so it drops into standard C&I monitoring stacks.

  • Plant-level logging: EzLogger3000C
  • Power control / export limitation: SEC controller family
  • Grid connection point metering: CT-based GM330 meter

We configure the metering chain to the site’s transformer and DSO requirements as part of the system quote.

Availability & compliance 1

The datasheet defers grid standards, safety regulation and EMC to GoodWe’s official website, where the ETR download centre publishes the certificate set.

  • Built-in protection: anti-islanding, residual current monitoring, integrated DC switch, Type II surge protection on DC and AC
  • Applicable codes: C&I connections may fall under VDE-AR-N 4105 (LV) or VDE-AR-N 4110 (MV) depending on the site

We confirm the exact current certificate revision and unit/NA-protection documents for your DSO as part of the quote.

Operation & warranty 1

GoodWe’s European limited warranty grants C&I inverters a 5-year limited warranty as standard (extensions purchasable via GoodWe’s warranty portal).

The ETR series is new and not yet named in the warranty document’s series list, so we confirm the ETR-specific warranty term in writing with each quote rather than assume it.

Next step

Send the project. Hear from an engineer within 24 hours.

Loads, tariff, site constraints - our engineers reply with a compatibility check and a sizing recommendation.

Contact project support

Or write to linker01@de-linker.com — attach your load profile if you have one.