GoodWe ET hybrid inverters and BAT-C batteries: energy storage solutions for C&I

GoodWe ET 40–50 kW: hybrid inverters for C&I systems

The GoodWe ET 40–50 kW series comprises high-voltage three-phase hybrid inverters developed for medium-power commercial and industrial applications.

The GW40K-ET-10 and GW50K-ET-10 models have rated power outputs of 40 and 50 kW respectively and support DC oversizing of up to 150%, providing greater flexibility when designing the PV array.

The GW40K-ET-10 features 3 MPPTs, while the GW50K-ET-10 is equipped with 4 MPPTs, with two strings per MPPT.

On the PV side, maximum input power reaches 60 kW for the 40 kW model and 75 kW for the 50 kW model. Maximum input voltage is 1,000 V, while the MPPT operating voltage range extends from 165 to 850 V.

The series is designed to operate with high-voltage batteries within an operating range of 200 to 800 V.

Maximum charge/discharge power reaches:

• 44 kW for the GW40K-ET-10;
• 55 kW for the GW50K-ET-10.

These features allow the inverters to be used in systems designed to optimise self-consumption, peak shaving and intelligent energy flow management.

Multiple inverters can also be connected in parallel to increase the overall power and capacity of the system.

Backup and power supply continuity

For C&I applications where power supply continuity is also required, ET inverters can be integrated with the GoodWe STS – Static Transfer Switch.

This configuration enables systems to manage both on-grid and off-grid operation, as well as the supply of backup loads.

The ET 40–50 kW series also features an IP66 protection rating and is designed to meet the requirements of commercial and industrial systems, including outdoor installations.

GoodWe ET 80–100 kW: hybrid inverters for higher-power systems

For higher-power C&I applications, GoodWe offers the ET 80–100 kW series, comprising the GW80K-ET-G10, GW99.99K-ET-G10 and GW100K-ET-G10 models.

The inverters feature 8 MPPTs, with two strings per MPPT, providing greater flexibility when designing complex photovoltaic arrays.

One of the key features of the series is PV oversizing of up to 200%.

Maximum PV input power reaches:

• 160 kW for the GW80K-ET-G10;
• 200 kW for the GW99.99K-ET-G10 and GW100K-ET-G10.

Maximum input voltage is 1,000 V, while the MPPT operating voltage range extends from 160 to 950 V.

Two independent battery inputs

On the energy storage side, the GoodWe ET 80–100 kW inverters feature two independent battery inputs, providing greater flexibility when configuring the battery storage system.

The battery operating voltage range is 300 to 800 V, with a nominal voltage of 600 V.

Maximum charge and discharge power reaches:

• 88 kW for the GW80K-ET-G10;
• 99.99 kW for the GW99.99K-ET-G10;
• 110 kW for the GW100K-ET-G10.

The series also supports the parallel connection of multiple inverters, enabling systems with higher power and storage capacity to be developed.

Energy management modes allow the system to be used for self-consumption, peak shaving, Time of Use tariff management and grid support

GoodWe BAT-C 61.4 and 112.6 kWh

For medium-capacity C&I applications, GoodWe offers the BAT-C 61.4 and 112.6 kWh series, designed for integration with GoodWe ET hybrid inverters.

The batteries use LiFePO4 (LFP) technology and are available in two configurations:

• GW61.4-BAT-AC-G10, with a nominal capacity of 61.4 kWh and 60 kWh of usable energy;
• GW112.6-BAT-AC-G10, with a nominal capacity of 112.6 kWh and 110 kWh of usable energy.

The 61.4 kWh version has a nominal voltage of 307.2 V, while the 112.6 kWh version reaches 563.2 V.

The system is designed to provide modularity and scalability for commercial and industrial applications.

BAT-C: scalable energy storage up to over 450 kWh

BAT-C batteries can be used to create scalable configurations according to the energy requirements of the system.

With compatible GoodWe inverters, up to 4 units can be connected in parallel. Using four 112.6 kWh batteries provides a total nominal capacity of 450.4 kWh.

This flexibility allows designers and EPCs to size the system according to the company’s generation and consumption profiles and the required energy management strategies.

Key applications include backup, peak shaving and optimised load management.

For outdoor installations, BAT-C features an IP55 protection rating and incorporates dedicated battery safety systems.

GoodWe BAT-C 208.9 and 261.2 kWh for C&I applications

For systems requiring higher energy storage capacities, the GoodWe range also includes the new BAT-C 208.9 and 261.2 kWh series.

These high-voltage lithium batteries are specifically designed for commercial and industrial energy storage applications and can be combined with GoodWe ET hybrid inverters, ETR battery-ready inverters and the STS system.

The range includes:

• GW208.9-BAT-LC-G10, with a nominal energy capacity of 208.9 kWh and a nominal voltage of 665.6 V;
• GW261.2-BAT-LCD-G10, with a nominal energy capacity of 261.2 kWh and a nominal voltage of 832 V.

Both configurations use 314 Ah cells and are designed to achieve a cycle life of at least 10,000 cycles.

Liquid cooling for optimised thermal management

One of the key features of the BAT-C 208.9/261.2 kWh series is its intelligent liquid cooling system.

Thermal management is combined with real-time cell-level monitoring to maintain uniform operating conditions, enable the early detection of potential anomalies and enhance overall system stability.

The batteries are designed to operate within a temperature range of -25 °C to +55 °C, extending their suitability for outdoor C&I applications.

Multi-level safety for BAT-C batteries

For the BAT-C 208.9/261.2 kWh series, GoodWe adopts a multi-level safety architecture designed to prevent, detect and manage potential abnormal operating conditions.

The system includes real-time gas and battery pack monitoring, an integrated fire suppression system and aerosol fire suppression devices at both battery pack and cabinet level.

The cabinet also provides 3-hour fire resistance and features an IP55 protection rating.

These features make the series suitable for C&I energy storage systems where safety, operational continuity and reliability are key considerations during system design.

A GoodWe ecosystem for C&I solar PV and energy storage

The combination of GoodWe ET hybrid inverters and BAT-C batteries provides a scalable ecosystem for commercial and industrial photovoltaic applications.

From 40 and 50 kW ET inverters combined with 61.4 and 112.6 kWh BAT-C batteries, through to 80–100 kW ET inverters and 208.9 and 261.2 kWh energy storage systems, the range enables solutions to be configured according to system power, the company’s energy consumption and its energy management objectives.

For installers, designers and EPCs, this modular approach supports a wide range of applications, from maximising self-consumption and reducing peak power demand through peak shaving to backup, intelligent load management and microgrid applications.