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Calibratable hydrogen measurement on site

Every pound counts. Legal compliant. Traceable.

GH2 Source - Stationary Certified Custody Transfer Flow Measuring System for Gaseous Hydrogen directly at the electrolyzer

GH2 Source is the stationary, calibration-compliant measurement solution for hydrogen trailer filling – developed for hydrogen suppliers and trailer manufacturers.

The calibration-capable hydrogen volume measurement directly at the electrolyzer enables billing-secure and regulatory-compliant recording of the H₂ volume produced. Particularly for industrial hydrogen production, funding projects, or custody transfer applications, an MID-compliant and PTB-approved measurement solution is essential.

Through direct integration of the measurement system at the electrolyzer, the actual hydrogen volume produced is recorded with precision – independent of downstream pressure losses or storage processes.

Challenges in H₂ Trailer Filling Directly at the Source

H₂ trailer filling directly at the source places high demands on measurement technology and regulatory compliance. Precise and standards-compliant design is critical for safe and economical operation.

  • Regulatory Pressure: Hydrogen sales require calibration-compliant measurement
  • Mobile Trailer Solutions –  No approval available – the installation is stationary, not mobile
  • Unknown Measurement Ranges: The actual measurement ranges achieved at the source during trailer filling are often unknown, making the design of a suitable measurement solution a significant challenge

Our Solution: GH2 Source

GH2 Source is a stationary, calibration-capable volume measurement system for gaseous hydrogen at the source. It enables legally secure billing during trailer filling – reliable, robust, and field-proven.

  • Measurement Directly at the Electrolyzer: Hydrogen volume is captured before compression, storage, or grid injection, providing a clear reference for actual production volume – systematic measurement errors are minimized.
  • Maximum Production Data Transparency: Direct source measurement enables precise production balances, reliable KPI evaluations, and targeted optimization of electrolyzer operation, including early efficiency detection.
  • High Legal Security: Calibration-compliant design per MID and national metrology law ensures billing-secure volume determination, regulatory compliance, and long-term investment security.

IYour advantages at a glance

  • Calibration-Compliant Volume Measurement for Gaseous Hydrogen
  • Ideal for Hydrogen Trailer Exchange Stations
  • Legally Secure Billing per MID / National Metrology Requirements
  • Modular System for Easy Integration
  • High Measurement Accuracy at Varying Operating Pressures

Typical applications

  • Filling hydrogen trailers at the electrolyzer
  • Selling hydrogen to logistics and mobility customers
  • Delivery measurement for customers with different refueling rates

“Not sure what fill rates will be achieved over time in order to optimize the measurement? We are here to help and advise you. Our TrigasFI service supports you during commissioning with the first test measurements. And if necessary, we will replace your sensor if the estimated fill rates are not optimal after all. We don’t leave until your solution is fully functional.”

Technical data for GH2 Source – Calibratable hydrogen measurement system

Standard version. We will be happy to advise you on available options.

GH2 Source RHM04

GH2 Source RHM10

Get in touch with us. We are looking forward to hearing from you.

Find more interesting products for hydrogen measurement here

GH2 Source was developed to measure high-density hydrogen at the source’s delivery point for filling trailers. The flow measurement system stands out from competing systems thanks to its temperature-independent mass flow measurement and, thanks to its certification in accordance with the Measurement and Calibration Ordinance, guarantees legally compliant billing, high accuracy, and safe operation of the system.

The compact GH2+ system series was developed for measurement and accounting of highly compressed hydrogen transported in trailer vehicles. The flow measurement system stands out from competing systems due to its temperature-independent mass flow measurement and guarantees high accuracy and safety, thanks to its custody transfer certification.