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GoodWe GW50K-BTC (50 kVA AC-coupled battery inverter)
GoodWe AC-coupled Storage

GoodWe GW50K-BTC (50 kVA AC-coupled battery inverter)

GoodWe GW50K-BTC is a 50 kVA AC-coupled battery inverter: it adds storage to a plant that already has PV, without touching the PV inverters.

  • AC-coupled: storage goes in beside a working PV plant with no change to the PV inverters, which is what makes a retrofit possible at all.
  • 200 to 865 V battery window with 100 A continuous charge and discharge, 50 kW charging and 55 kW discharging, pairing natively with GoodWe's LX C cabinets.
  • 97.6% peak, 97.3% European and 97.2% battery-to-AC efficiency; 55 kVA backup at 400 V three-phase with under 3% THD.
  • 124 kg — 46 kg lighter than the GW50K07-BTC — with emergency power off and remote shutdown integrated, Type II AC surge protection, rated to 4000 m.
Manufacturer
GoodWe
Model code
GW50K-BTC
Item no.
DLK-GOODWE-GW50KBTC
Delivery
Delivery included in your Proforma
Orderable · lead time confirmed after order

Plan with GW50K-BTC

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
Sign in for partner pricing Open manufacturer document

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
Storage without a re-design.
Retrofit logic

Storage without a re-design.

AC-coupled storage drops in behind the existing string inverters - no PV rewiring.

AC-coupled: storage goes in beside a working PV plant with no change to the PV inverters, which is what makes a retrofit possible at all.
200 to 865 V battery window with 100 A continuous charge and discharge, 50 kW charging and 55 kW discharging, pairing natively with GoodWe's LX C cabinets.
97.6% peak, 97.3% European and 97.2% battery-to-AC efficiency; 55 kVA backup at 400 V three-phase with under 3% THD.
AC-coupled retrofit
Headline feature

AC-coupled retrofit

Storage beside the PV plant rather than inside it. No re-stringing, no inverter swap, no PV recommissioning.

In pictures

Inspect it before you spec it.

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

GoodWe BTC AC-coupled battery inverter cabinet.
Product

GoodWe BTC AC-coupled battery inverter cabinet.

BTC cabinet floor-mounted beside the battery cabinets.
Installation

BTC cabinet floor-mounted beside the battery cabinets.

AC, battery and communication terminations.
Installation

AC, battery and communication terminations.

Documentation

Specifications

Every value exactly as published in the official GW50K-BTC documentation.

Battery typeLi-Ion
Battery voltage range200 ~ 865 V
Nominal battery voltage422.4 / 499.2 / 576 / 652.8 V
Battery inputs1
Max. charging power50 kW
Max. discharging power55 kW
Max. continuous charging current100 A
Max. continuous discharging current100 A
Nominal apparent power to grid50 kVA
Max. apparent power to grid52.5 kVA
Max. apparent power from grid55 kVA
Nominal output voltage400, 3L / N / PE V
Output voltage range312 ~ 460 (AU); 318 ~ 497 (Germany) V
Nominal grid frequency50 / 60 Hz
Nominal output current72.5 A
Max. current to grid76 A
Max. current from grid100 A
Power factor~1 (Adjustable from 0.8 leading to 0.8 lagging)
Total harmonic distortion<3%
Nominal apparent power50 kVA
Max. apparent power55 kVA
Nominal output voltage400 V
Nominal output frequency50 / 60 Hz
Max. output current76 A
Output voltage THD<3%
Max. efficiency97.6 %
European efficiency97.3 %
Max. battery-to-AC efficiency97.2 %
AC surge protectionType II (Type I+ II Optional)
Emergency power offIntegrated
Remote shutdownIntegrated
Rapid shutdownOptional
Overvoltage categoryDC II / AC III
Protective classI
With BMSRS485
With meterRS485
With portalRS485, LAN / Bluetooth
Dimensions585 × 1360 × 750 mm
Weight124 kg
MountingGrounded
CoolingSmart Fan Cooling
Ingress protectionIP20
Operating temperature-20 ~ +60 (>45°C derating) °C
Relative humidity0 ~ 95% (Non-condensing)
Max. operating altitude4000 m
TopologyNon-isolated
Country of manufactureChina
Manufacturer document Ask an engineer

Documents

GoodWe BTC series flyer with LX C battery models (EN)ENDownload
Missing a certificate or language version?Request a document
ProductGoodWe GW50K-BTC (50 kVA AC-coupled battery inverter)

Complete the system

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

Recommended

Pick the rating

GoodWe BTC family. Same engineering, different size.

3 ratings Same series, same engineering — your model is highlighted.
GoodWe GW50K07-BTC Sign in for pricing
GoodWe GW100K07-BTC Sign in for pricing
GoodWe GW50K-BTC (50 kVA AC-coupled battery inverter) This model Sign in for pricing
Weight
170.5 kg
212.0 kg
124 kg

Every figure comes straight from the manufacturer's official datasheet.

Selection 2

The battery inverter sits on the AC side, beside the existing PV inverters rather than between them and the array.

  • The PV plant is not touched: no re-stringing, no inverter swap, no new commissioning of the PV side.
  • That is usually the only way to add storage to a working plant without losing generation for the duration.
  • The cost is one extra conversion step, which is why the 97.2% battery-to-AC figure matters.

Both are 50 kVA nominal. The plain model is lighter and slightly lower on maximum output.

  • GW50K-BTC (this one): 124 kg, 52.5 kVA maximum to grid.
  • GW50K07-BTC: 170.5 kg, 55 kVA maximum to grid.
  • 46 kg is the difference between two people and a lift on a plant-room install. If the headroom to 55 kVA is needed, the 07 is the one.

Configuration 1

A 200 to 865 V lithium-ion bank on one battery input, over RS485 to the BMS.

  • GoodWe's own flyer footnote gives the nominal voltages against its LX C cabinets: LX C101-10 at 422.4 V, LX C120-10 at 499.2 V, LX C138-10 at 576 V and LX C156-10 at 652.8 V. de-linker sells all four.
  • 100 A continuous each way, 50 kW charging and 55 kW discharging.
  • The pairing is confirmed on the quote against the site's load profile.

Installation & wiring 1

It is a floor-standing, grounded cabinet at 585 x 1360 x 750 mm and IP20 — indoors, in a plant room.

  • Smart fan cooling, -20 to +60 °C with derating above 45 °C, 0-95% non-condensing, up to 4000 m.
  • Emergency power off and remote shutdown are integrated; rapid shutdown is optional.
  • Type II AC surge protection fitted, Type I+II optional.

Delivery 1

Derived from de-linker's own published GW50K07-BTC at 4925, scaled by maximum output to grid: 52.5 over 55 kVA gives 4700.

  • Multi-pallet freight at 124 kg net; the battery cabinet ships separately with its own ADR handling.
  • Lead time confirmed after order rather than quoted from stock.
  • B2B net; confirmed on the quote.
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.