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PEM Electrolyzer - Evaluator EC/ES

Our test bench solution for PEM electrolyzers is designed to help you test your systems efficiently and reliably, even at power levels of up to 5 MW with very high currents and low voltages. We offer flexible and customizable setups for cell, stack, and system-level testing, including operation at pressures of up to 100 bar.

We place great emphasis on robust components, high control accuracy, automated processes, and comprehensive safety mechanisms, enabling precise real-time monitoring of all critical system parameters. With this solution, we support you in increasing productivity and advancing the development of your PEM electrolyzers for large-scale industrial applications.

With our HORIBA TESTWORK® software, we provide you with an intuitive and efficient control solution that allows both simple test procedures and complex long-term or stress tests to be carried out fully automatically. Together, we create a foundation for reliable, safe, and efficient testing – from the first concept to series production.

Key features

Robust components, maximum control accuracy, and proprietary control algorithms enable testing PEM electrolyzers at system pressures of up to 100 bar

Flexible solutions for all types of applications with electrical power demands up to 5 MW, supporting very high currents and simultaneously low voltages

Efficient and highly precise separation of gas and liquid phases

Real-time monitoring of all relevant system parameters

Electrochemical characterization such as impedance spectroscopy or single-cell voltage monitoring

4-level-alarm concept for safe operation and protection of the operator, the test device, the test stand, and even the building

Fully automated testing, data visualization, and result post-processing using the proprietary HORIBA TESTWORK® automation

Customized test solutions based on individual customer requirements

Technical Specification

Voltage: Up to 1,200 V

Current: Up to 16,000 A

Power: Up to 5 MW

H₂ Flow: Up to 20,000 [Nl/min]

O₂ Flow: Up to 10,000 [Nl/min]

Operation Pressure: Up to 50 bara on Anode & Cathode (Optional: 100 bara)

Conditioning DUT:

Electrolyte recirculation loop on Anode & Cathode Maximum 90 °C with 1 K Control accuracy Optional: Separate liquid cooling loop

PEM Electrolyzer - Evaluator EC/ES