Predicus Team
David Pentz is an engineer with more than 40 years of professional experience in the mining, nuclear, civil, and environmental, and petroleum industries. His business consulting experience includes a detailed knowledge of mines in hard and soft rock, from the feasibility stage through operations and closure. He has detailed understanding of the commercial and nonproliferation aspects of the nuclear fuel cycle. He has participated in public and government hearings on nuclear fuel cycle issues. In addition, he has had broad P&L responsibility for businesses in excess of $180 million per annum. He has detailed knowledge about the application of probabilistic risk assessment methodology and has extensive experience in the process of expert elicitation of uncertainties in a probabilistic framework. David is the co-creator of the probabilistic risk assessment concept that led to the technology known as GoldSim, currently in use at Yucca Mountain by the DOE and NRC and on a broad variety of other projects. He has authored over 40 professional papers.
Ralph Stoll is an engineer with over 38 years of experience in business development, strategic planning, and project management. His business experience includes detailed knowledge of the nuclear fuel cycle including naval nuclear power plant operations, fissile material disposition, and international nuclear waste management. He was a venture partner for operations in a private equity investment company funding the direct commercialization of intellectual property where he developed procedures and processes to analyze over 150 technologies for initial investments. An experienced leader and project manager, he completed a 27-year career in the United States Navy in the rank of Captain, commanded three nuclear-powered submarines, and while at NATO Headquarters in Brussels, Belgium in the early 1990s started the first military cooperation programs with Russia and other countries of the former Soviet Union.
Ian Miller, a specialist in systems modeling, is the President of GoldSim Technology Group LLC. His over 30 years of experience includes probabilistic performance assessments of nuclear waste repositories, and risk assessments of Arctic pipelines, uranium mine tailings, hazardous waste landfills, and industrial site contamination. He led the development of the GoldSim simulator, which is used worldwide for doing probabilistic analyses of complex systems such as safety analyses of nuclear waste repositories, planning of mines and their environmental impacts, and strategic planning. He has also participated in numerous studies involving groundwater flow and solute transport modeling and underground stress analysis.
John
Greeves is a
35 year experienced
engineer who
provides leadership
on risk-informed and
performance-based
regulatory processes
and evaluates
regulatory strategy.
John supervised and
helped develop both
regulations and
guidance to
implement
risk-informed,
performance-based
approaches to siting,
design and
construction of
nuclear facilities.
As an NRC staff
director, he was
responsible for
development and
promulgation of
NRC’s first fully
risk oriented rule
making, 10 CFR Part
63: Disposal of High
Level Radioactive
Wastes in a Geologic
Repository at Yucca
Mountain, Nevada.
Frank Sheppard is an engineer with over 24 years of experience in project management, systems engineering, acquisition management, and proposal development. His business experience includes development of innovative major government contracting, large scale complex nuclear cleanup proposal development, independent technical and project reviews, international technology transfer and baseline development and project controls. He was a civil servant with the Navy and the Department of Energy for over 21 years, rising to the Senior Executive Service level. He left the Department of Energy in 2005 to form his own successful private consulting firm. He is widely recognized as an expert in environmental cleanup contracting and project management systems. He joined Predicus as a Partner in July 2009.
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