Economic Evaluation of Replacement Turbine Runner Bids

by H. Morgan Goranflo, Jr., TVA Engineering Lab, Norris, TN, USA,
J. Stephens Adams, TVA Engineering Lab, Norris, TN, USA,



Document Type: Proceeding Paper

Part of: Water Power '87

Abstract: Many owners of hydro facilities are investigating increasing plant capacity and output by upgrading existing hydraulic turbines. Typically, the owner will conduct a detailed feasibility study, soliciting information from turbine vendors regarding cost and performance of new turbine components, usually including, but not limited to, new runners. Vendors must estimate, based on analysis and experience, the increases in performance that could be achieved by installing new components into existing settings. After economic analysis by the owner, a decision is reached whether or not to proceed with implementation. This paper describes the development of bid evaluation factors for three projects owned by the Tennessee Valley Authority. Potential problems and pitfalls with the application of these factors are also discussed.

Subject Headings: Turbines | Economic factors | Bids | Hydraulics | Owners | Feasibility studies | Information management | Existing buildings | North America | Tennessee | United States

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