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Vacations in the Sun: Can They Survive the Effects of Global Ozone Depletion?
The impact of elevated levels of ultraviolet on human health is already being reported. With tourism slated to become the economic mainstay in many tropical countries, there is the very...

Studies of Zooplankton Near the Nuclear Power Plant?Angra I. Preoperational Conditions (Rio de Janeiro, Brasil)
The plankton from marine bays on the coast of Rio de Janeiro State has been poorly studies, and little information is available about Ilha Grande and Sepetiba Bays and Guanabara Bay. This...

Environmental Impacts of Drought in the Tennessee Valley
Beginning in June 1984, the Tennessee Valley region entered the most severe, extended period of drought since record keeping began in 1890. The historical annual average rainfall across...

Ground Water Treatment System Using UV/H2O2 at Sacramento Army Depot
Ground water beneath the Sacramento Army Depot (SAAD) is being extracted and treated as part of a ground water remediation program. The extraction system is achieving contaminant capture...

Pumped Storage Promise
With many utilities facing potential shortfalls in generating capacity, pumped storage hydro plants could be a key to meeting peak-period energy demand in the 1990s. Pumped storage plants...

Hydroproject Risk Analysis
Traditionally, feasibility studies performed for potential hydropower sites have included either no uncertainty or at best an ad hoc value associated with estimated benefits. However,...

Monte Carlo Simulation Techniques for Predicting Annual Power Production
The problem of the creation of a simulation model utilizing the Monte Carlo method at a single site is addressed. The result of the analysis is a picture of the production at the site...

Probabilistic Analysis of Modernization Options
Benefit-cost analysis is a standard procedure for reaching planning decisions. Cost overruns and benefit shortfalls are also common occurrences. One reason for the difficulty of predicting...

The Impact of Drought on Hydropower Generation-Case Study of Bureau of Reclamation Hydropower Plant
The paper explores the effects of extended drought on power generation at Shasta hydropower plant, a Bureau of Reclamation facility in Northern California. Statistical measures of water...

Economic Evaluation of Minimum Flow at Rockton
The Rockton Hydroelectric Project is a two-unit, 1,100 kW plant operated by South Beloit Water, Gas & Electric Company, a wholly owned subsidiary of Wisconsin Power & Light...

Renovation and Uprating of Seven Hydropower Plants in Java
The Indonesian Power Authority is planning to renovate and uprate seven hydropower stations in Java to expand plant life expectancy, ensure operating safety and reliability, and increase...

A Case for Modernizing the Funding and Repayment of Regional Water/Power Projects
Several regional water/power projects authorized by Congress remain unfunded and therefore uncompleted year after year. In this paper examples of such uncompleted projects are examined....

Evaluating the Dynamic Operating Benefits of Hydro Power Plants
In 1986, the Electric Power Research Institute asked Decision Focus to develop a new planning model to quantify the dynamic operating benefits of power technologies that offer operating...

Improving the Assessment of Instream Flow Needs for Fish Populations
Instream flow requirements are one of the most frequent and most costly environmental issues that must be addressed in developing hydroelectric projects. Existing assessment methods for...

Evaluating Hydro Relicensing Alternatives?Impacts on Power and Non-Power Values
The relicensing of 300 hydroelectric plants in the next decade involves a total capacity of about 4,000 MW - a $10 billion value. A methodology recently developed by Decision Focus Incorporated...

Evaluation of an Eicher Fish Diversion Screen at Elwha Dam
In the spring of 1990, the Electric Power Research Institute (EPRI) initiated testing of an inclined fish screen installed in a 9-foot diameter penstock at the Elwha Hydroelectric Project...

A Demonstration of Strobe Lights to Repel Fish
An EPRI review (EPRI, 1986) of fish protection systems for hydroelectric facilities identified strobe lights as a potential behavioral system to minimize fish entrainment. In 1988, EPRI...

Techniques for Balancing Instream Flow Needs with Project Operation
Balancing power and non-power benefits of hydroelectric developments has become a controversial issue in the relicensing of projects. Multiple project and multiple objective flow management...

The Use of IFIM for Evaluating Effects of a Flow Alternative on Fish Habitat in a River System with Competing Water Demands
The Instream Flow Incremental Methodology (IFIM) was used to evaluate instream fish habitat in the Platte River in central Nebraska. The IFIM analysis presented herein incorporates 1)...

Altering Federal CVP Power Operations to Accommodate Fisheries' Survival on the Sacramento River
Balancing the needs of the river users, water and power users, and the fishery needs is a formidable task requiring sacrifices by all the users particularly during this time of drought...

 

 

 

 

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