EPC Energy Technology
Electro Power Cell / Power The Future


Provides system engineering solutions for green hydrogen, CO₂ utilization & Power-to-X



System Overview


BOP (Balance of Plant) is the critical supporting system in a hydrogen production unit, alongside the electrolyzer. It handles gas treatment, water circulation, power supply, and system control, forming the core of stable electrolyzer operation and engineering deployment. In practice, BOP is not a simple assembly of components but a multi-parameter coupled system involving fluid dynamics, thermal management, and electrical control. Its performance directly determines system stability, efficiency, and safety.


EPC provides complete BOP solutions through coordinated design of gas treatment, water management, power supply, and control systems. This enables engineering integration from electrolyzer to complete hydrogen production system, delivering operational, scalable, and deployable solutions.


Main System Components:


Gas-Liquid Separation System – Effectively separates hydrogen from electrolyte and water.
Hydrogen Purification System – Upgrades hydrogen purity for various application requirements.
Water Treatment & Circulation System – Supplies stable feed water and maintains system circulation.
Power Supply System (Rectifier) – Provides stable DC power input to the electrolyzer.
Control System (PLC / EMS) – Enables system monitoring, regulation, and safe operation.
Thermal Management System – Controls system temperature to ensure efficiency and stability.

PEM/AEM/AWE Hydrogen Production BOP Systems


BOP (Balance of Plant) is the critical support system in water electrolysis, covering gas treatment, water circulation, power supply, and system control. It is key to system stability and efficiency.


Different electrolysis technologies have distinct requirements:

PEM runs on high-purity water, requiring fast response and precise control.
AEM offers flexibility in cost and water quality, but demands more integrated water management and gas separation.
ALK is mature and suited for large-scale continuous operation, with high demands on alkaline circulation and system stability.

EPC provides tailored BOP solutions for each technology. Through coordinated design of fluid, thermal, and electrical systems, we ensure stable operation and engineering delivery across diverse applications and operating conditions.

System Configuration


Electrolyzer Stack – The core unit where the water electrolysis reaction takes place.
Gas-Liquid Separation System – Effectively separates hydrogen from electrolyte and water.
Hydrogen Purification System – Upgrades hydrogen purity to meet various application needs.
Water Treatment & Circulation System – Supplies stable feed water and maintains system circulation.
Power Supply / Rectifier – Provides stable DC power input matched to electrolyzer operation.
Thermal Management System – Controls system temperature to ensure stability and efficiency.
Control System (PLC / EMS) – Enables system monitoring, regulation, and safety control.

BOP System Features


① System-Level Coupling Design – Through coordinated optimization of fluid distribution, thermal management, and electrical control, we ensure matching and stable operation across all subsystems, delivering overall system performance and reliability.


② Multi-Technology Adaptability (PEM / AEM / ALK) – Based on the specific characteristics of each electrolysis technology, we provide differentiated BOP designs to achieve optimal balance among efficiency, cost, and operating conditions.


③ Dynamic Operating Capability – Control strategies and logic are optimized for renewable energy fluctuations and load variations, ensuring stable operation during start/stop and variable-load conditions.


④ Modular Engineering & Delivery – Standardized modules with skid-mounted or containerized designs enable rapid deployment, flexible expansion, and streamlined project delivery.


🔥 We deliver not just hydrogen production capacity, but systems that run reliably over the long term.
Electro Power Cell Energy Technology
(Shanghai) CO., Ltd
Contact us:
✉️   fern@electropowercell.com
         
             +86 181 1735 8642

Address：Building 6, Caohejing Science and Technology Oasis,
                Yaobei Road, Songjiang District, Shanghai, China