GoodWe Next-Generation 100kW Hybrid Inverter: Safe, Efficient and Flexible for C&I Energy Storage Applications

GoodWe is introducing the ET Series 75–100kW three-phase hybrid inverters, developed specifically for commercial and industrial (C&I) applications. As the core of GoodWe’s C&I energy storage portfolio, the ET 75–100kW delivers higher efficiency and full-chain flexibility through enhanced power harvest and strong backup capabilities. Seamless integration with GoodWe’s BAT 100–112kWh high-voltage battery and Static Transfer Switch 125kW(STS), positioning the ET 75–100kW as a leading choice for almost all C&I scenarios.

Full-Chain Flexibility & Efficiency from DC to AC Side

With 8 MPPTs, up to 200% DC input oversizing and 42A per MPPT input compatible with high-current 182/210 mm modules, the ET 75-100kW significantly increases energy harvest even in complex C&I scenarios.

AC/DC coupling offers greater flexibility, compatibility and efficiency. AC coupling is ideal for adding storage to existing PV systems without changing the original PV wiring, MPPTs, cables or PV inverters, while DC coupling reduces conversion stages to cut energy losses and improve round-trip efficiency by more than 2%.  Together, they enable flexible system configurations for different project requirements.

The ET 75-100kW has also been engineered for flexible configurations and easy expansion over the project lifetime. Dual 110A independent battery inputs provide up to 220A charge and discharge capability, delivering the high power required for C&I peak-shaving, backup and fast response to load changes.

All-Round Safety, Ultimate Reliability

Safety and reliability are built into every layer of the ET 75–100kW. The series has been awarded the TÜV Rheinland Certificate for Comprehensive Environmental Adaptability, demonstrating its ability to operate reliably in challenging outdoor conditions.

The ET 75–100kW further strengthens safety protection and reliability with advanced features such as AFCI 3.0 and RSD 2.0, providing fast arc-fault detection and rapid shutdown for enhanced PV-side safety. Terminal temperature monitoring on both AC and DC connections helps prevent overheating and ensures safe operation. Additional protections, including PV reverse polarity protection and ISO protection, safeguard the system from risks.

A smart DC circuit breaker adds another layer of protection. It automatically trips in the event of reverse polarity, DC terminal over-temperature or internal short circuits, quickly isolating faults to protect both equipment and personnel.

Backup Power and Flexible Expansion for Diverse C&I Scenarios

When combined with GoodWe’s  STS 125kW, the ET 75-100kW delivers UPS-level switching with a transfer time of less than 4 ms, helping critical loads ride through grid disturbances without interruption. 

The advanced smart port design of the STS 125kW supports multi-purpose use of a single port, including generator start-stop control and flexible switching between generators and large loads.

When paired with GoodWe’s high-voltage BAT 100–112kWh batteries, the ET 75-100kW forms an easy-to-deploy, optimally matched storage solution. This pairing allows the battery to discharge close to its maximum capacity and ensures high power performance.

As a truly scenario-ready solution, the ET 75–100kW is designed to serve a wide range of C&I sites. Ultra-low noise operation below 60dB enhances user comfort in noise-sensitive C&I environments such as business parks, office campuses and public facilities. Reverse rotating fans support smart dust removal and easy maintenance, making the ET 75–100kW well suited for dusty outdoor and industrial environments. 110% three-phase unbalanced load capability and 150% AC overloading for 10 seconds ensure strong performance with demanding and uneven C&I loads, including motors, compressors and other impact loads.

For larger projects, the ET 75–100kW can be paralleled in systems of up to 15 units via the SEC3000C smart energy controller. SEC3000C also enables mixed-parallel operation of the ET 75–100kW with GoodWe grid-tied inverters, giving  more flexibility to expand  with storage.

With STS 125kW , BAT 100–112kWh battery and SEC3000C, the ET Series 75–100kW offers a safe, efficient and flexible C&I energy storage solution that is ready to grow with customers’ future needs.