Pilot Testing and Assessment of Safety and Integrity of Targeted Hydrogen Blending in Gas Infrastructure for Decarbonization

The purpose of this Agreement is to fund pilot testing and assessment of safety and integrity of targeted hydrogen blending in gas infrastructure for decarbonization.

The Regents of the University of California on behalf of the Los Angeles Campus

Recipient

Los Angeles, CA

Recipient Location

26th

Senate District

54th

Assembly District

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$72,827

Amount Spent

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Active

Project Status

Project Update

A virtual workshop was held on May 25, 2023, with project partners (44 participants) to discuss the boundaries and characteristics of use case systems, discuss existing data and knowledge gaps, and define the needed experimental data. The primary candidates under consideration are University of California, Irvine microgrid (as Power Generation Application), and Graniterock (as Industrial Application). These systems also include key portions of the corresponding potential hydrogen-methane blend supplier infrastructure, namely PG&E and SoCalGas. Furthermore the project team has developed a preliminary model of these systems for a "zero-order" safety, integrity, and reliability assessment based on available information on system design, energy delivery requirement, operational requirements, options for hydrogen injection and blending, existing gas asset condition, maintenance, and inspection.

The Issue

California gas IOUs are actively pursuing hydrogen as a pathway to decarbonize the gas system. Blending pipeline gas with hydrogen is still in the early stages of development and use. Research is required to evaluate hydrogen compatibility with pipeline materials, ensure system safety and integrity, and quantify potential costs and benefits.

Project Innovation

This project will address knowledge gaps to quantify risk and performance impacts of blending hydrogen in the current California gas pipeline network. A multi-disciplinary team will conduct laboratory experiments, develop models derived from the experiments and broader knowledge, and validate the analyses through component and system-level testing. The project will also conduct technoeconomic analysis using the system level risk model to appropriately prioritize changes to the gas pipeline system to mitigate risk and inform the beneficial introduction of hydrogen into the gas network.

Project Goals

Execute a hydrogen blending testing program at material, component, and system levels informed by the project use cases.
Create a repository of hydrogen blending data, technology assessment literature, and information produced by the project.
Develop models and computational capabilities to conduct use case system risk and performance assessments.
Apply system risk and performance assessments to targeted industrial and power generation use cases.
Create a comprehensive integrity management approach and quantitative risk analysis.
Perform techno-economic analyses of multiple scenarios including retrofits and purpose-built pipelines.

Project Benefits

This project will evaluate the potential impacts of hydrogen blends on gas system safety, reliability, performance, and environmental sustainability. Additionally, the project will analyze the technoeconomic feasibility of different pathways to transport hydrogen using the gas system to inform prudent investments going forward.

Increase Safety

Safety

The project will conduct a laboratory experiment test program for materials and component-level reliability models and system-level risk and integrity assessments. The test program will investigate hydrogen impacts on the functional and safety performance of key components of the targeted gas system, and the results will form a basis for quantifiable evidence to support hydrogen blending up to 100 percent safely.

Greater Reliability

Reliability

Existing integrity and safety management practices may not be sufficient to ensure the safety, integrity, and reliability of the targeted gas system under hydrogen blends. Therefore, a systemwide quantitative risk analysis will be undertaken to identify needed modifications to the operation, inspection, and maintenance practices of the targeted gas system segments.

Environmental & Public Health

Environmental Sustainability

This project will assist in quantifying the potential environmental impacts and benefits of blending hydrogen into the gas system for targeted industrial and power generation end uses.

Lower Costs

Affordability

The project will perform technoeconomic feasibility analyses of introducing hydrogen into the existing pipeline network at various levels and compare pathways including retrofitting existing gas pipelines, building new purpose-built hydrogen pipelines, and converting hydrogen to chemical carriers. This analysis will inform prudent investments going forward to ensure affordability as gas IOUs consider hydrogen blending.

Key Project Members

Project Member

Ali Mosleh

Professor
UCLA

Subrecipients

Rocket

Institute of Gas Technology dba GTI Energy

Rocket

Sacramento Municipal Utility District

Rocket

Sandia National Laboratories

Rocket

Solar Turbines Incorporated

Rocket

University of California, Irvine

Rocket

DNV GL USA, Inc.

Rocket

MC Consult LLC

Rocket

System Safety LLC

Rocket

Match Partners

Rocket

Sacramento Municipal Utility District

Rocket

Solar Turbines Incorporated

Rocket

The Regents of the University of California on behalf of the Los Angeles Campus

Rocket

Utilization Technology Development

Rocket

DNV GL USA, Inc.

Rocket

MC Consult LLC

Rocket

Capstone Green Energy

Rocket

Contact the Team

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