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Subtask Leader: The Netherlands
(Nico Versloot, TNO Defence, Security
and Safety)
Purpose: To conduct a collaborative
testing program that evaluates the
effects of equipment or system failures
under a range of real life scenarios,
environments, and mitigation measures.
Subtask Leader: U.S.A. (Bruce
Purpose: To disseminate results
of the task through the development
of targeted information packages for
selected stakeholder groups.
ACTIVITIES AND
RESULTS IN 2005
Two Experts Meetings were con­
ducted in 2005:
1. Experts Meeting ­ March 6­7,
2005, Paris, France
2. Experts Meeting ­ September
6­7, 2005, Pisa, Italy
This task was approved by the
Executive Committee of the IEA Hy­
drogen Implementing Agreement in
October 2004. The task currently has
slower than anticipated, due to the fact
that only two National Commitment
months after the Executive Committee
to achieve the required level of expert
effort. However, an additional six com­
mitment letters were received during
the last half of 2005 and progress has
picked up considerably.
SUBTASK A ­ RISK
MANAGEMENT:
Subtask A Risk Management consists of
three activities:
• Survey of existing risk assess­
ment methodologies for relevant case
studies
• Comparative risk assessment of
hydrogen systems with hydrocarbon fuel
systems.
• Probabilistic risk and conse­
quence analysis
Activity A. 1: Survey of existing
risk assessment methodologies
for relevant case studies
(Leader – Norway, Angunn
Engebø, DNV)
pared in December 2005 and is cur­
rently being reviewed and discussed
by DNV and Subtask A leadership. It
will be released for the review of IEA
experts in February 2006 and detailed
discussion at the Task 19 meeting in
March 2006 in Long Beach, CA, USA.
The survey includes: nomenclature
regulations; codes and standards on risk
assessment; discussion on risk assess­
ment methodology; review of methods
used in available studies; and summary
of results.
A total of seven example projects
quantitative approaches – have been re­
ceived and reviewed. The assessment
methods followed a representative set of
standards and guidelines.
were:
1. The selection and application of
risk acceptance criteria for the example
risk assessment and are also adapted
to most company guidelines and author­
ity regulations. There were no adapta­
tions to the acceptance criteria in order
operation of hydrogen facilities. In the
context of this survey, the acceptance
criteria are a suitable tool for commu­
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Activity A.1
“The surveys include:
nomenclature
discussion of
available regulations;
codes and standards
on risk assessment;
discussion on
risk assessment
methodology; review
of methods used in
available studies;
and summary
of results.”