Hizenergy Unveils Four C&I Energy Storage Products Centered on 300 kW PCS

Hizenergy, the commercial division of Huazhi Energy, has introduced a new lineup of four products dedicated to energy storage in the commercial and industrial (C&I) sector. The range comprises two power conversion systems — designated PCS, for Power Conversion System — and two turnkey storage systems. The company positions this launch as a response to growing operator demands for equipment efficiency and intelligent grid injection management.

A 300 kW Transformer-Free Converter as the Flagship Product

The flagship product is a 300 kW power conversion system (AC) with direct 400 V output, which Hizenergy describes as the first converter in its category able to connect directly to low-voltage distribution grids at 400 V without a step-up transformer. According to the company, this architecture reduces the system's initial cost, footprint, and conversion losses compared to high-voltage configurations requiring additional transformation equipment. The converter displays a peak efficiency of 99.0% and a European efficiency of 98.5%, the company said.

Hizenergy notes that this PCS integrates grid-forming capabilities, black start functionality, and seamless switching between grid-connected and islanded modes. The range also includes a second 460 kW PCS, intended for installations requiring higher power. These two converters target commercial and industrial applications requiring direct integration into existing low-voltage electrical infrastructure.

Two Complete 300 kW Storage Systems

Hizenergy also offers two complete storage systems: a 300 kW/627 kWh unit providing two hours of autonomy, and a 300 kW/1,172 kWh unit designed for four hours of storage. These configurations would allow operators to cover peak shaving or backup power needs over varying durations. The company indicates that these systems are part of an increasingly performance-oriented C&I market combining equipment capabilities and advanced grid injection control features.

The company has not disclosed pricing or a commercialization timeline for the full product range. The technological positioning rests on eliminating the step-up transformer, a traditional component in mid-voltage or high-voltage storage architectures. This approach would, according to Hizenergy, simplify C&I installations by reducing the number of components and potential failure points.