A Clear Focus on the Future

Storage and Delivery

Hydrogen is an emerging option for energy storage in existing gas pipeline networks. GTI is a leader in supporting safe and reliable natural gas pipelines, and we have leveraged this expertise to assess the impacts of injecting hydrogen into the North American distribution infrastructure. We can determine appropriate hydrogen blends, develop and test material types and pipeline components, optimize operating conditions, and assess end use equipment compatibility for large-scale infrastructure deployment. Our research team has been involved in standardization of building codes for hydrogen facilities and underground storage requirements.


  • Technology development, design, and testing
    • Hydrogen storage vessels
    • Hydrogen blending systems
    • Power-to-gas projects
  • Assessment of hydrogen blending on natural gas infrastructure
  • Codes and standards development support
  • Power-to-gas site assessment, project design, and oversight
  • System modeling
  • Field demonstration support
GTI is assessing hydrogen compatibility in the natural gas infrastructure. Researchers have conducted an evaluation of the effects of hydrogen blending in natural gas through lab tests on material integrity and operational compatibility.

H2@scale: Creating the first dedicated renewable hydrogen infrastructure network

GTI is leveraging our thought leadership in a new U.S. Department of Energy (DOE) H2@Scale project. GTI, Frontier Energy, SoCal Gas, and the University of Texas at Austin are partnering with several commercial companies to design, build, and operate the first dedicated renewable hydrogen infrastructure network in Texas.

The three-year project will demonstrate the safety and reliability of a natural gas/hydrogen network and deliver a very practical, real-world result. It will integrate a wide variety of new and existing technologies, including electrolysis powered by renewable electricity, infrastructure development, hydrogen storage, vehicle fueling, and a fuel cell to provide electricity to an energy-intense data center.

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Assessing Hydrogen Compatibility in the Natural Gas Infrastructure

GTI has completed in-depth hydrogen blend studies for a consortium of natural gas operators as well as the U.S. National Renewable Energy Laboratory. These projects focused on the life cycle assessment of hydrogen blending as well as the safety, leakage, durability, integrity, end use, and environmental impacts.

Following this study, GTI conducted an evaluation of the effects of hydrogen blending in natural gas on non-metallic material properties and operational safety through a series of laboratory testing funded by Operations Technology Development (OTD). This work assessed the material integrity and operational compatibility of a bounded natural gas pipeline system and its components with a 5% hydrogen-blended fuel, to help determine if any system upgrades might be necessary to reduce risk and support gas interchangeability.

Additional work also sponsored by OTD is being conducted to assess the impacts of hydrogen blended fuel on metallic materials in the natural gas pipeline system. Safety factors for hydrogen gas systems need to be established based on materials tests performed under relevant and site-specific mechanical, environmental, and material conditions. This work will develop engineering tools to allow an integrity assessment and a safety margin determination of hydrogen blended gas use for a range of system parameters and conditions.

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