Design and Requirements of a Hydrogen Component Reliability Database (HyCReD)

Katrina Groth, Ahmad Al-Douri, Madison West, Kevin Hartmann, Genevieve Saur, William Buttner

Research output: Contribution to journalArticlepeer-review

1 Scopus Citations


Hydrogen technologies are expected to play a key role in the decarbonization of several sectors including energy storage and transportation. Rigorous investigation and quantification of the risk and reliability issues associated with hydrogen technologies will be critical to ensuring both their wider adoption and safe, economical operations. Quantitative risk assessment (QRA) is an important tool that has been used to enable the safe deployment of many engineering systems, including hydrogen fueling stations and hydrogen storage systems. However, QRA studies require reliability data which is currently lacking for expanding applications of hydrogen systems. To address this gap, we present a new structure for a hydrogen component reliability database (HyCReD) that can be used to generate reliability data to be used in QRA, reliability, safety studies, maintenance planning, and more. Building on our previous work examining four major hydrogen safety data collection tools (West et al., 2022) [1], our approach in this work was to consult scientific literature on reliability data collection as well as a number of existing reliability engineering databases in the oil & gas, chemical processing, and nuclear power plant sectors. The evaluation of these databases led to identifying best practices to be implemented in a data collection framework for a hydrogen component reliability database. Based on these best practices, a set of 24 requirements for the proposed database are presented, covering its characteristics and the types of data to be collected. We define the structure of the HyCReD database and 25 data elements to be collected, spanning system description, failure, shutdown, or near-miss events, and maintenance events. The data elements are then defined according to international standards used in the safety and reliability practice and potential choice lists are provided for each field. Since this database is being piloted for hydrogen fueling stations, a generic station component hierarchy developed by West (2021) [2] is used to standardize system data. Finally, we demonstrate populating the database with information extracted from five narrative reports on hydrogen fueling station incidents.
Original languageAmerican English
Pages (from-to)1023-1037
Number of pages15
JournalInternational Journal of Hydrogen Energy
Issue numberPart D
StatePublished - 2024

NREL Publication Number

  • NREL/JA-5700-85837


  • component reliability
  • hydrogen safety
  • quantitative risk assessment
  • reliability data


Dive into the research topics of 'Design and Requirements of a Hydrogen Component Reliability Database (HyCReD)'. Together they form a unique fingerprint.

Cite this