Hizenergy Unveils 300-kW Low-Voltage Converter for C&I Market

Hizenergy, the commercial brand of manufacturer Huazhi Energy, is unveiling a new line of four products for energy storage targeting the commercial and industrial (C&I) segment. The offering includes a 300-kW power conversion system (PCS) with direct 400-V low-voltage output, a 460-kW PCS, a 300-kW/627-kWh system for two hours of storage, and a 300-kW/1,172-kWh system for four hours. The company presented this launch as a response to growing operator needs regarding equipment efficiency and intelligent energy dispatch management.

Direct connection without a step-up transformer

The flagship product of the range is the 300-kW PCS with direct 400-V low-voltage output. Hizenergy presents it as the first power converter in this power class capable of connecting directly to 400-V commercial distribution networks without a step-up transformer. This architecture would, according to the company, reduce initial installation costs, footprint, and conversion losses compared to high-voltage architectures requiring additional transformer equipment.

In terms of performance, Hizenergy indicates that the converter reaches maximum efficiency of 99.0% and European efficiency of 98.5%. The system would also integrate grid-forming capabilities, black-start autonomous start, and seamless switching between grid-connected and off-grid modes.

Positioning in a changing C&I market

Huazhi Energy positioned this launch as a response to a C&I energy storage market increasingly driven by market mechanisms, in which operators would need to combine equipment efficiency and advanced dispatch capabilities. The product line covers storage durations of two to four hours, targeting commercial sites connected at low voltage. The company did not specify targeted geographic markets or commercialization timelines in the information available at this stage.