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An Investigation of Explosion-Proof Motors

Description: Procedure of Investigation: "The investigation described in this bulletin was undertaken by the Bureau of Mines as one of several investigations having for their purpose the ascertaining of methods for lessening the risks attending the use of electricity in mining. In this report the results of tests are related to the various types of protection employed which are described in detail."
Date: 1912
Creator: Clark, H. H.
Partner: UNT Libraries Government Documents Department

The Development of Teaching Aids for Elementary Electricity

Description: The purpose of this study is to develop a teaching program of instructional aids which will enrich the teaching of elementary electricity in the junior and senior high schools. It is hoped that the information and materials developed and presented will be of practical value to the teachers engaged in the teaching of electricity.
Date: 1953
Creator: Briggs, Cecil Lee
Partner: UNT Libraries

Congress and the U.S. Army Corps of Engineers in 2016

Description: This report briefly discusses authorization legislation for the water resources activities of the U.S. Army Corps of Engineers (Corps) in 2016, which the 114th Congress is anticipated to consider. These issues span the agency's role in new and existing navigation improvements, coastal and riverine flood risk reduction, and environmental restoration and protection efforts.
Date: January 5, 2016
Creator: Carter, Nicole T.
Partner: UNT Libraries Government Documents Department

Electric Grid Physical Security: Recent Legislation

Description: This report briefly discusses legislative initiatives to address the physical safety of electrical transformers and 0other parts of the U.S. electric grid which are vulnerable to damage from theft, vandalism, or terrorist attacks.
Date: January 6, 2016
Creator: Parfomak, Paul W.
Partner: UNT Libraries Government Documents Department

Wind/PV Generation for Frequency Regulation and Oscillation Damping in the Eastern Interconnection

Description: This report presents the control of renewable energy sources, including the variable-speed wind generators and solar photovoltaic (PV) generators, for frequency regulation and inter-area oscillation damping in the U.S. Eastern Interconnection (EI). In this report, based on the user-defined wind/PV generator electrical control model and the 16,000-bus Eastern Interconnection dynamic model, the additional controllers for frequency regulation and inter-area oscillation damping are developed and incorporated and the potential contributions of renewable energy sources to the EI system frequency regulation and inter-area oscillation damping are evaluated.
Date: December 1, 2013
Creator: Liu, Yong; Gracia, Jose R; Hadley, Stanton W & Liu, Yilu
Partner: UNT Libraries Government Documents Department

Developing Generic Dynamic Models for the 2030 Eastern Interconnection Grid

Description: The Eastern Interconnection Planning Collaborative (EIPC) has built three major power flow cases for the 2030 Eastern Interconnection (EI) based on various levels of energy/environmental policy conditions, technology advances, and load growth. Using the power flow cases, this report documents the process of developing the generic 2030 dynamic models using typical dynamic parameters. The constructed model was validated indirectly using the synchronized phasor measurements by removing the wind generation temporarily.
Date: December 1, 2013
Creator: Kou, Gefei; Hadley, Stanton W; Markham, Penn N & Liu, Yilu
Partner: UNT Libraries Government Documents Department

Additional EIPC Study Analysis: Interim Report on High Priority Topics

Description: Between 2010 and 2012 the Eastern Interconnection Planning Collaborative (EIPC) conducted a major long-term resource and transmission study of the Eastern Interconnection (EI). With guidance from a Stakeholder Steering Committee (SSC) that included representatives from the Eastern Interconnection States Planning Council (EISPC) among others, the project was conducted in two phases. Phase 1 involved a long-term capacity expansion analysis that involved creation of eight major futures plus 72 sensitivities. Three scenarios were selected for more extensive transmission- focused evaluation in Phase 2. Five power flow analyses, nine production cost model runs (including six sensitivities), and three capital cost estimations were developed during this second phase. The results from Phase 1 and 2 provided a wealth of data that could be examined further to address energy-related questions. A list of 13 topics was developed for further analysis; this paper discusses the first five.
Date: November 1, 2013
Creator: Hadley, Stanton W
Partner: UNT Libraries Government Documents Department

Risk Management And Market Efficiency On The Midwest Independent System Operator Electricity Exchange.

Description: Midwest Independent Transmission System Operator, Inc. (MISO) is a non-profit regional transmission organization (RTO) that oversees electricity production and transmission across thirteen states and one Canadian province. MISO also operates an electronic exchange for buying and selling electricity for each of its five regional hubs. MISO oversees two types of markets. The forward market, which is referred to as the day-ahead (DA) market, allows market participants to place demand bids and supply offers on electricity to be delivered at a specified hour the following day. The equilibrium price, known as the locational marginal price (LMP), is determined by MISO after receiving sale offers and purchase bids from market participants. MISO also coordinates a spot market, which is known as the real-time (RT) market. Traders in the real-time market must submit bids and offers by thirty minutes prior to the hour for which the trade will be executed. After receiving purchase and sale offers for a given hour in the real time market, MISO then determines the LMP for that particular hour. The existence of the DA and RT markets allows producers and retailers to hedge against the large fluctuations that are common in electricity prices. Hedge ratios on the MISO exchange are estimated using various techniques. No hedge ratio technique examined consistently outperforms the unhedged portfolio in terms of variance reduction. Consequently, none of the hedge ratio methods in this study meet the general interpretation of FASB guidelines for a highly effective hedge. One of the major goals of deregulation is to bring about competition and increased efficiency in electricity markets. Previous research suggests that electricity exchanges may not be weak-form market efficient. A simple moving average trading rule is found to produce statistically and economically significant profits on the MISO exchange. This could call the long-term survivability of the ...
Date: December 2011
Creator: Jones, Kevin
Partner: UNT Libraries

Static Electricity in Hospital Operating Suites: Direct and Related Hazards and Pertinent Remedies

Description: From Preface and Summary: "In this paper the authors present facts to show the prevalence of static electricity in the average hospital anesthetizing area, and the degree to which this easily developed electrical form of energy constitutes an explosion hazard."
Date: 1953
Creator: Guest, P. G.; Sikora, V. W. & Lewis, Bernard
Partner: UNT Libraries Government Documents Department

Static Electricity in Nature and Industry

Description: From Introduction: "In this bulletin "static electricity" is used in its commonly accepted meaning to include the various manifestations that result from the coming together or neutralization of positive and negative charges with have been separated by friction between unlike substances or otherwise. Although the scope of the this report is rather broad, it deals primarily with static electricity as a hazard. Casual and experimental observations recorded herein are thus given for a background and for the purpose of suggesting hazards not yet recognized."
Date: 1939
Creator: Guest, Paul G.
Partner: UNT Libraries Government Documents Department

The Mechanism of Failure in Corona Discharge

Description: Abstract: "Experimental evidence is given which indicates that electronic bombardment is responsible for damage and failure of insulating material subjected to intense corona attack. The experimental revolts are further supported by some theoretical considerations of the energy-time properties of corona discharges."
Date: September 1, 1957
Creator: Nail, Clelland D.
Partner: UNT Libraries Government Documents Department

Including Energy Efficiency and Renewable Energy Policies in Electricity Demand Projections

Description: A paper that has a methodology for estimating the energy impacts of key EE/RE on-the-books policies that are not explicitly reflected in the EIA's AEO 2013 electricity projections and including them in their baseline projections.
Date: April 2015
Creator: United States. Environmental Protection Agency.
Partner: UNT Libraries Government Documents Department

Balloon Flight and Atmospheric Electricity

Description: "The air is known to be charged with electricity (chiefly positive) with reference to the earth, so that its potential increases with the altitude and the difference in potential between two points in the same vertical line, divided by the distance between them, gives a value called the "potential gradient," which may vary greatly with the altitude, the nature of the ground and the atmospheric conditions" (p. 1).
Date: July 1924
Creator: Herrera, Emilio
Partner: UNT Libraries Government Documents Department

Renewable Energy Portfolio Standard (RPS): Background and Debate Over a National Requirement

Description: This report discusses the renewable energy portfolio standard (RPS), under which retail electricity suppliers (electric utilities) must provide a minimum amount of electricity from renewable energy resources or purchase tradable credits that represent an equivalent amount of renewable energy production. The minimum requirement is often set as a percentage share of retail electricity sales.
Date: December 5, 2007
Creator: Sissine, Fred
Partner: UNT Libraries Government Documents Department

Customer Response to RTP in Competitive Markets: A Study ofNiagara Mohawk's Standard Offer Tariff

Description: Utilizing load, price, and survey data for 119 largecustomers that paid competitively determined hourly electricity pricesannounced the previous day between 2000 and 2004, this study providesinsight into the factors that determine the intensity of price response.Peak and off-peak electricity can be: perfect complements, substitutes,or substitutes where high peak prices cause temporary disconnection fromthe grid, as for some firms with on-site generation. The averageelasticity of substitution is 0.11. Thirty percent of the customers usepeak and off-peak electricity in fixed proportions. The 18 percent withelasticities greater than 0.10 provide 75 percent of the aggregate priceresponse. In contrast to Industrial customers, Commercial/Retail andGovernment/Education customers are more price responsive on hot days andwhen the ratio of peak to off-peak prices is high. Price responsivenessis not substantially reduced when customers operate near peak usage.Diversity of customer circumstances and price response suggest dynamicpricing is suited for some, but not all customers.
Date: June 1, 2006
Creator: Boisvert, Richard N.; Cappers, Peter; Goldman, Charles; Neenan,Bernie & Hopper, Nicole
Partner: UNT Libraries Government Documents Department

An Evaluation of Ten Electricity Training System Laboratory Manuals to Ascertain their Adequacy in Meeting Curriculum Standards for the Secondary School Course: General Electricity

Description: This study involved an evaluation of laboratory manuals available to high schools for use with electricity training systems to ascertain which-were most adequate in meeting curriculum standards for general electricity as specified in Bulletin 615 of the Texas Education Agency.
Date: August 1971
Creator: Turner, Richard M.
Partner: UNT Libraries

Size Effect in the Electrical Conductivity of Bismuth

Description: If a physical dimension of a metallic specimen is comparable with, or smaller than, the mean free path of the conduction electrons, then the observed electrical conductivity will be less than that of a conventional bulk sample. This phenomenon is called a size effect, and is the result of electron scattering from the specimen surfaces. In the present investigation, measurements were made on electropolished monocrystalline specimens ranging from matchbox geometry to thick-film geometry in order to obtain further information on the size effect in bismuth at liquid helium temperatures.
Date: August 1967
Creator: Vaughn, Bobby J.
Partner: UNT Libraries

Tariff-based analysis of commercial building electricityprices

Description: This paper presents the results of a survey and analysis ofelectricity tariffs and marginal electricity prices for commercialbuildings. The tariff data come from a survey of 90 utilities and 250tariffs for non-residential customers collected in 2004 as part of theTariff Analysis Project at LBNL. The goals of this analysis are toprovide useful summary data on the marginal electricity prices commercialcustomers actually see, and insight into the factors that are mostimportant in determining prices under different circumstances. We providea new, empirically-based definition of several marginal prices: theeffective marginal price and energy-only anddemand-only prices, andderive a simple formula that expresses the dependence of the effectivemarginal price on the marginal load factor. The latter is a variable thatcan be used to characterize the load impacts of a particular end-use orefficiency measure. We calculate all these prices for eleven regionswithin the continental U.S.
Date: March 28, 2008
Creator: Coughlin, Katie M.; Bolduc, Chris A.; Rosenquist, Greg J.; VanBuskirk, Robert D. & McMahon, James E.
Partner: UNT Libraries Government Documents Department

Cost-Effective Cable Insulation

Description: Advanced Research Projects Agency-Energy project sheet summarizing general information about the Green Electricity Network Integration (GENI) program including critical needs, innovation and advantages, impacts, and contact information. This sheet discusses new, low-cost high-voltage direct current (HVDC) cables as part of the "Nanoclay Reinforced Ethylene-Propylene-Rubber for Low-Cost HVDC Cabling" project.
Date: June 4, 2012
Creator: General Electric Global Research
Partner: UNT Libraries Government Documents Department