Recently, Electro-Power-Cell Energy Technology (Shanghai) Co., Ltd. (EPC Energy) announced that its independently developed Hydrogen-Based Energy Storage System (HBESS) has successfully completed the technical documentation verification under the European Union CE regulatory framework.

The verification covered key technical requirements including mechanical safety, electrical equipment safety, and electromagnetic compatibility (EMC). This milestone represents an important step for EPC Energy in aligning its hydrogen energy equipment engineering capabilities with international standards and regulatory systems.

HBESS: A Hydrogen Energy Storage System for Renewable Power Integration

The HBESS (Hydrogen-Based Energy Storage System) is a modular hydrogen energy storage solution centered on water electrolysis hydrogen production, combined with high-pressure hydrogen storage and hydrogen utilization technologies.

The system is designed to convert renewable electricity into hydrogen for long-term energy storage and multi-scenario hydrogen applications.

Core system modules include:

• Water electrolysis hydrogen production module

• Hydrogen purification and gas management system

• High-pressure hydrogen storage module (up to 30 MPa)

• System control and safety management system

• Hydrogen application interface
  (fuel cells, industrial hydrogen supply, and energy peak-shaving)

By converting surplus renewable electricity into hydrogen, HBESS enables:

• Renewable energy utilization and grid balancing

• Long-duration energy storage

• Stable microgrid operation

• Flexible hydrogen energy applications

The HBESS platform features a modular architecture that can be configured for different project scales, currently covering hydrogen production capacities from:

0.5 Nm³/h to 50 Nm³/h

CE Compliance and Technical Verification

The HBESS system underwent technical documentation evaluation according to relevant EU directives and harmonized standards, including:

Applicable EU Directives

• Machinery Directive 2006/42/EC

• EMC Directive 2014/30/EU

Applicable Harmonized Standards

• EN ISO 12100 — Risk assessment for machinery safety

• EN 60204-1 — Electrical safety of machinery

• EN IEC 61000 series — Electromagnetic compatibility standards

Following the testing and documentation review, the system demonstrated compliance with European technical requirements in areas including:

• Mechanical safety design

• Electrical safety architecture

• System control logic

• Electromagnetic compatibility

The CE technical documentation verification was conducted and validated by an international certification body.

Enabling Engineering Applications for Hydrogen Energy Systems

As the share of renewable energy continues to grow globally, long-duration energy storage and energy system coupling have become key challenges for modern power systems.

Hydrogen energy storage is increasingly recognized as a critical pathway to address:

• Intermittency of renewable energy generation

• Cross-cycle energy storage for power systems

• Power-to-X energy conversion

• Development of hydrogen energy infrastructure

The HBESS platform was developed precisely to meet these engineering needs, enabling practical deployment of hydrogen storage and hydrogen energy integration technologies.

Typical application scenarios include:

• Renewable energy hydrogen production projects

• Microgrid and off-grid energy systems

• Industrial hydrogen utilization

• Power-to-Hydrogen energy coupling systems

Advancing Engineering Deployment of Hydrogen Energy Systems

EPC Energy has long focused on hydrogen energy and low-carbon energy system integration, conducting engineering development and industrial exploration in areas such as:

• Water electrolysis hydrogen production

• Hydrogen energy storage systems

• Fuel cell energy systems

• Power-to-X energy conversion technologies

Through engineering-oriented system design and modular equipment development, the company aims to accelerate the transition of hydrogen energy technologies from laboratory research to real-world industrial applications.

Looking ahead, EPC Energy will continue advancing innovation in hydrogen energy systems while strengthening collaboration with global industry partners to promote the large-scale deployment of hydrogen technologies in the global energy transition.