Seismic Evaluation of PG&E Concrete Dams
Seismic evaluation of PG&E concrete dams is an ongoing process. The seismic environment for the dams changes over time because more historical earthquake data is obtained, faults...
Environmental Risk Assessment at a Gas Utility
Over the past 10 years, Southern California Gas Company (SoCalGas) has developed an environmental risk management program to mitigate or eliminate the potential health risks to employees,...
Digester Gas Resource Recovery at Phoenix, Arizona
Until July 1986, the digester gas produced at this 150 million gallon per day facility, in excess of what was utilized for heating anaerobic digesters was flared. In 1983, a feasibility...
Methodologies to Estimate Instream Benefits for Use in Water Allocation
In the 'utility valuation' approach, the recreational experience possible at given flow levels is examined to derive a utility that the resource provides to the...
Multi-Purpose, Multi-Reservoir Simulation on a PC
The methodology and difficulties in converting a large, general purpose, mainframe, batch oriented computer program (for reservoir simulation) to work effectively in the PC environment...
Optimal Operation of Complex Multireservoir Systems
The paper provides brief descriptions of papers presented in two workshop sections, and of discussions on modeling reservoir systems. The sections are on optimal operation of complex multireservoir...
Hydropower Development under the Utility Concept of Least Cost Utility Planning
The impetus behind 'Least Cost Utility Planning' (LCUP) is that if new generation or purchased power could be deferred, the resultant savings could be used to...
Ghost Dam Safety Evaluation
Ghost Development, owned and operated by TransAlta Utilities, is near the eastern margin of the Rocky Mountain Foothills, approximately 33 km northwest of Calgary, Alberta. The development...
The Renovation of the Mechanicville Hydroelectric Station
The Mechanicville Hydroelectric Facility, owned and operated by Niagara Mohawk Power Corporation, was first developed in 1897. This paper traces its history, relicensing and new design....
Extensive Civil Penalities Apply - FERC Takes Aim at Hydro Operators' Heads
On August 23, 1988, the FERC published rules implementing its new civil penalty assessment authority. Those rules raise various issues of concern for hydro operators, and additional issues...
EPRI's Hydro Relicensing Strategy
The most successful relicensing program is anticipated to involve an aggressive, proactive strategy as follows: select a small, responsive management team to make the decisions concerning...
Utility Options for Meeting Dissolved Oxygen Limits for Hydroelectric Power Plant Discharges
Due to increased attention by regulating agencies to the dissolved oxygen levels of water released through hydroelectric power plants, the Electric Power Research Institute has developed...
Evaluation of Hydro Facilities for Sale to Another Utility
STS Hydropower had been contacted by a major industrial client near one of the STS regional offices for the purpose of evaluating both the technical and financial status of several operating...
Detecting the Defects
According to estimates, for every dollar spent on preventive maintenance of the infrastructure, $10 will be saved by avoiding emergency repairs after major structural failures. Technologies...
Third Party Interface Within the Construction Contract
The construction contract inevitably requires an interface with a third party, outside of the traditional Owner/Engineer-Contractor relationship. Often, the local jurisdictional body,...
The Outlook for the Hydro Business
Hydropower business activity has grown in the eight years since the WATERPOWER conferences began in 1979. During this time, however, small hydro has faced many ups and downs. Relicensing...
Probabilistic Capacity Value of Nonfirm Hydro Energy
Electric utilities with a predominant mix of hydro generation traditionally apply Energy Planning criteria rather than Capacity Planning criteria in developing their generation resources...
Economic Analysis Guidelines?Western Area Power Admin
Guidelines addressing methods and procedures for evaluating benefit and cost components of power projects are being prepared for Western Area Power Administration to use in economic analyses...
Tax Accounting Vs. Book Accounting for Small-Scale Sites: A Case History From Four Small-Scale Sites
The Public Utilities Regulatory Policies Act (PURPA) and the tax incentives the federal government granted in the early 1980's, rekindled interest in hydropower unlike anything...
Power System Study to Determine Hydro Benefits
This paper discusses evaluation methodologies used by Stone & Webster to determine the power benefits for six potential hydropower projects at existing U. S. Army Corps of Engineers...
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