TECHNICAL PAPERS: Gas Turbines: Electric Power

Technical Risks and Mitigation Measures in Combustion Turbine Project Development

[+] Author and Article Information
D. Grace, J. Scheibel

EPRI, 3412 Hillview Avenue, Palo Alto, CA 94304

J. Eng. Gas Turbines Power 125(1), 228-235 (Dec 27, 2002) (8 pages) doi:10.1115/1.1496771 History: Received December 01, 2000; Revised March 01, 2001; Online December 27, 2002
Copyright © 2003 by ASME
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EPRIGEN, 1999, “Technology Risk Assessment in Combustion Turbine Based Power Plants,” EPRIGEN, Palo Alto, CA, Report No. TR-113988.
EPRIGEN, 1999, “Combustion Turbine Design Evolution and Risk: Pedigree Matrices for ABB, General Electric, Siemens Westinghouse and Siemens Power Advanced Machines,” EPRIGEN, Palo Alto, CA, Report No. TR-114081.
EPRI, 2000, “CT Project Risk Analyzer Workbook Software Version 1.0: User’s Manual and Tutorial,” EPRI, Palo Alto, CA, Report No. 1000338.
Gandy, D. W., Frederick, G., Viswanathan, R., and Stover, J. T., 2000, “Overview of Hot Section Component Repair Methods,” ASM Utilities and Energy Sector Conference on Gas Turbine Materials Technologies, Oct. 9–12, St. Louis, Mo.


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Unplanned maintenance event costs
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Time-to-repair to unplanned maintenance events
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Failure rate as a function of duty cycle and year after model introduction
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EPRI risk assessment program
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Modeled number of starts per year
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Annual maintenance cost
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Relative distribution of project cash flow
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Major cost components of CT operations and maintenance
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Plant profitability sensitive to variability in maintenance frequency
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Plant profitability sensitive to reduction in hot gas path parts cost
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Technical areas of improvement of life cycle costs



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