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The Hydro Business: 1990 and Beyond
During the last ten years, hydroelectric generation received more and more attention as a source of reliable and economical electricity. Since the first WATERPOWER conference, the industry...

Determining Hydro Project Dependable Capacity
Traditional techniques for estimating a hydro project's dependable capacity are of limited value when evaluating a hydro project in a thermal-based power system. For such...

Quantifying Uncertainty in Hydropower Planning
Power system operators must deal with various types of uncertainties. Some are related to inputs, such as system load and water supply, while others pertain to the system itself, such...

Joint Economic Evaluation of Pumped Storage in Colorado
This paper summarizes a joint planning study completed in December 1988 on the economic potential of pumped-storage development. The study was unusual in water development investigations...

Devil Canyon Second Afterbay
This project is located in the City of San Bernardino (Southern California). The addition of a second afterbay for the Devil Canyon Powerplant has been in the planning stages since October,...

Case Study Incremental Approach to Cost Analysis for Improvements to Wise Powerhouse Penstock
In 1980, Pacific Gas and Electric Company (PG&E) began studying the addition of a second powerhouse to the existing Wise Hydroelectric Project. Because of the existing project...

Economic Trade-Off between Hydropower and Other Competing Water Uses: A Case of Coteau Creek Station
Using the Coteau Creek hydropower generating station in Saskatchewan as a case study, economic trade-offs between water used for hydropower generation, and irrigation and recreational...

Efficiency and Vibration Testing
To gather the necessary data to assure the most efficient and reliable operation of the system, Idaho Power Company implemented a plant testing program in 1988. The testing program consists...

Thermally Developed Blade Stresses and Cavitation Damage
Cavitation damage to the turbine runner blades, to the draft tube liner, and to the runner hub requires extensive welding repair. The traditional repair method is to gouge out the damaged...

Effects of the Environmental Approval Process on Project Scheduling and Economics
The environmental approval process is fundamental to the permitting of hydropower projects. Recent changes in permitting requirements has had a significant effect on the cost and schedule...

Optimum Use of the Water Resource a Factor in the Hydroelectric Relicense Process
To meet Federal Energy Regulatory Commission (FERC) requirements for a new license, owners must demonstrate full development of the available water resource. This paper presents an approach...

Design and Installation of Prestressed Rock Anchors for Penstocks at the Sheldon Springs Project
A mini-hydroelectric project producing 25MW of power was recently completed near St. Albans, Vermont. The power conduit conveys water from the intake on the river to a bifurcation and...

Optimization of Power Production Based on Efficiency Data
Computer programs dealing with different parts of the optimization process are in operation in Norway today, and they include: the hydrological part from weather forecast to reservoir...

Evaluating Financial Performance of Public and Private Firms Involved in Hydropower Development
The extended abstract compares companies that have gone public and the authors' own company which is private. Included are five publicly, or formerly publicly traded companies...

Optimizing Joint Load Control for Hydroelectric Plants
This paper discusses a method to minimize water usage at a multi-turbine hydroelectric generating plant. At plants which do not spill water this optimization is directly converted to extra...

Design Data of Kaplan and Bulb Turbine Units
Some basic statistical data covering geometrical and energy parameters for Kaplan and bulb turbine units are presented. These data are further compared as specific rations for both units,...

Acoustic Flowmeter/Efficiency System Installation at the Niagara Power Project
The New York Power Authority's Robert Moses Niagara Power Project (RMNPP) recently installed an acoustic flowmeter/efficiency system on two 150 MW rated generators. This paper...

Analysis of Unsteady Flows in Irrigation Canals Due to Load Rejection in Hydroelectric Project
An add-on hydroelectric project has been proposed for the Owyhee Tunnel No. 1, a component of the Owyhee Irrigation Project constructed in the 1930's by the U.S. Bureau of...

Foundation Engineering
Current Principles and Practices
The proceedings of the 1989 ASCE Foundation Engineering Congress (entitled Foundation Engineering: Current Principles and Practices) address advances in the state-of-practice and in research...

Predicted and Observed Axial Behavior of Piles
Results of a Pile Prediction Symposium
This publication presents the results of a pile capacity event that was held at the Lakefill site on the Evanston Campus of Northwestern University in conjunction with the 1989 Foundation...

 

 

 

 

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