Baltimore gas and electric company's study of a shell-based GCC power plant: Final report
This report presents the results of a study conducted by the Baltimore Gas and Electric Company (BG and E) to develop and evaluate performance, cost and economic information for a nominal 400 MWe, phased, Shell-based gasification-combined-cycle (GCC) power located at BG and E's Perryman site. Phases 1 and 2 consist of two identical distillate-fired GE MS7001F advanced combustion turbines each producing a nominal 140 MWe. In Phase 3 a steam bottoming cycle is added, increasing the plant output to about 420 MWe, and in Phase 4 a coal gasification facility is added. The study results indicate that a 90/degree/F, the Phase 4 GCC power plant has a heat rate on coal of 9100 Btu/kWh and a total capital requirement of $1585/kW. Total capital requirements for the initial phases ranged from approximately $450/kW for the simple cycle plant to $530/kW for the combined cycle facility. A sensitivity study which investigated the use of alternate coals showed only modest cost and performance impacts for designing the gasification plant to handle several coals having a fairly broad range of properties. The performance and cost information was used by BG and E to perform an economic assessment consisting of production costs, revenue requirements, and other financial results. This assessment indicated that: (1) for all scenarios, the GCC option was better than a pulverized coal alternative; (2) the combustion turbine and combined-cycle options, essentially equal economically, were generally preferred over the GCC for differential cost escalations between coal and distillate of approximately 2.0% or less; (3) for higher differential distillate-to-coal cost escalations, the GCC had lower total revenue requirements than either the combustion turbine or combined cycle option; and (4) BG and E should continue to monitor coal gasification development, and periodically review the fuel cost projections and potential economic benefits of phased GCC power plants. 41 figs., 54 tabs.
- Research Organization:
- Electric Power Research Inst., Palo Alto, CA (USA); Baltimore Gas and Electric Co., MD (USA)
- OSTI ID:
- 6448734
- Report Number(s):
- EPRI-GS-6283
- Country of Publication:
- United States
- Language:
- English
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