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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Models for electricity market efficiency and bidding strategy analysis

Niu, Hui 28 August 2008 (has links)
Not available / text
2

The impact of increasing electricity tariffs on the automative industry in South Africa

Hoops, Eduard Christiaan January 2010 (has links)
South African electricity tariffs were relatively low compared to the rest of the world. The average South African business has for long taken this advantage for granted and is now surprised to realise that electricity is becoming an expensive and scarce commodity. The South African electricity supply industry is far more complex than the average person may think. The infrastructure supporting this industry is extremely costly; takes long to develop and build and requires careful planning and management. There are many sources of energy and many technologies for generating electricity. However, many of these do not appear quite ready to serve the needs of the industry. The manufacturing industry depends heavily on electricity. The recent power outages and tariff increases have served as a cruel reminder of this fact. The automotive sector has lost many days of production and the increasing electricity costs erode the profitability of the affected companies. The automotive suppliers and vehicle manufacturers have expressed their concerns. Indications are that some have reduced the number of employees and may even face bankruptcy. This research aims to gain the perspective of senior managers in the automotive industry regarding the impact of the increased electricity tariffs on their manufacturing costs. Naturally, all electricity consumers will be affected by this. However, this research aims to investigate the significance of the effect on the automotive industry as well as obtain some indication of which factors determine the level of dependency. Each company has to react strategically to the situation and apply those measures which are available to them. This research determines how strongly the industry feels about reacting and which strategic measures they will apply. The outcome is descriptive of the circumstances in the industry and indisputably serves as an indication of the financial impact of electricity tariff increases.
3

The replacement basis of depreciation in the regulation of rates of privately owned utilities

Lee, Ming Chong January 1966 (has links)
Economic regulation of business activities appears to be contrary to the philosophy of free enterprise. It can be justified only if it is imposed as a means to serve the public interest - to enhance the economic welfare of society - when the self interest of the producer is likely to prove harmful to the general interest of society. Public utilities are enterprises which have to be regulated in the interest of society and particularly the rates they may charge. In the regulation of utility rates, cost is often accepted as the proper basis for fixing the rates. Among the costs of rendering a utility service is the cost associated with the use of a capital asset, that is, depreciation expense. There are various bases on which depreciation expense is computed. Thus, there arises the problem of selecting a proper basis for determining the depreciation expense that is consistent with the purpose of rate regulation. An examination of current literature suggested that there is a case, on theoretical grounds, for adopting the current replacement cost approach to depreciation accounting when the purpose of fixing a utility rate is to serve the interest of society. The case appears strong when a marginal-cost standard is accepted for rate regulation since, under the assumption of continuity of operations, the cost of replacing the services of a capital asset is the long-run marginal (opportunity) cost of employing the asset in the enterprise; thus, a rate that is fixed on the basis of current replacement cost will promote optimum allocation of resources in the economy. Even if a "full-cost" standard is employed in the regulation of utility rates, there is still a case for determining depreciation expense on the basis of current replacement cost. A utility rate that is fixed on this basis is more comparable to the price charged in the non-utility sector of the economy and, thus, promotes better allocation of resources between the utility sector and the rest of the economy. It also provides the enterprise an opportunity to maintain intact its productive capacity if this is in the interest of society; for the ability of the enterprise to continue production in the future will not be impaired. It is recognized that there are practical problems associated with the application of the proposal to a real life situation. However, they are not insurmountable. They appear no greater than the problems associated with the use of reproduction cost new - a concept which has been applied in practice in the history of rate regulation. / Business, Sauder School of / Graduate
4

A Critical Analysis of Studies of Demand for Residential Electricity

Acosta, Luis Enrique 01 January 1977 (has links) (PDF)
No description available.
5

Peak-load pricing in electric power industry in China.

January 1999 (has links)
by Auyang Wai Keung. / Thesis (M.B.A.)--Chinese University of Hong Kong, 1999. / Includes bibliographical references (leaves 58-59). / ABSTRACT --- p.ii / TABLE OF CONTENTS --- p.iii / LIST OF ILLUSTRATIONS --- p.v / LIST OF TABLES --- p.vi / PREFACE --- p.vii / CHAPTER / Chapter I. --- INTRODUCTION --- p.1 / Background of Electric Power Industry --- p.2 / History of Utilities Pricing --- p.4 / Peak-load Pricing --- p.5 / "Power Generation, Transmission and Distribution" --- p.6 / Form of Power Generation and Their Cost Structure --- p.7 / Nuclear Power --- p.7 / Hydropower --- p.8 / Thermal Power --- p.9 / Load Curve Analysis --- p.11 / Summary --- p.12 / Chapter II --- METHODOLOGY --- p.14 / Chapter III --- EFFICIENCY PRICING --- p.15 / Assumption of the Study --- p.15 / Overview of Natural Monopoly --- p.15 / Marginal Cost Pricing with Subsidization --- p.17 / Deviate from Marginal Cost Pricing --- p.18 / Efficiency Pricing Using Linear Pricing --- p.18 / Ramsey Pricing --- p.19 / Efficiency Pricing Using Nonlinear Pricing --- p.23 / Uniform Two-part Tariffs --- p.23 / Block Tariffs or Multipart Tariffs --- p.23 / Hopkinston Electricity Tariff --- p.25 / Rationale for Two-part Tariff --- p.26 / Chapter IV --- PEAK-LOAD PRICING --- p.28 / Model of Peak-load Pricing --- p.28 / Implication of the Model --- p.32 / Full Capacity Never Reach --- p.32 / Peak-period Price Exceeds the Off-peak-period Price --- p.32 / Deficit or not at Optimum Prices --- p.33 / Welfare Maximization --- p.34 / Diverse Technology --- p.36 / Case 1 --- p.38 / Case 2 --- p.38 / Case 3 --- p.38 / Practical Considerations for Peak-load Pricing --- p.40 / Benefit Analysis --- p.40 / Principle Cost of Adopting PLP --- p.43 / Chapter V --- CASE STUDY: A UTILITY IN GUANGDONG PROVINCE --- p.44 / Background of the CPC --- p.44 / Purchasing Process of Energy from Network and Local Power Plants by CPC --- p.45 / Selling Process of Energy to Consumers by CPC --- p.46 / Reasons of Unsuccessful Peak-load Pricing in Guangdong Province and CPC --- p.48 / Supply and Demand --- p.48 / Demand Elasticity --- p.51 / Substitution --- p.52 / Chapter VI --- CONCLUSION --- p.53 / Energy Purchasing from Network --- p.53 / Power Generation Separate from Utility --- p.54 / Pool Pricing --- p.54 / Conclusion --- p.56 / Appendix 1 --- p.57 / BIBLIOGRAPHY --- p.58
6

Electric utility pricing and investment decisions under uncertainty

Ellis, Randall P January 1981 (has links)
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Economics, 1981. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND DEWEY. / Vita. / Bibliography: leaves 278-286. / by Randall Poor Ellis. / Ph.D.
7

Off peak cooling using an ice storage system

Quinlan, Edward Michael January 1980 (has links)
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Architecture, 1980. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND ROTCH. / Includes bibliographical references. / The electric utilities in the United States have entered a period of slow growth due to a combination of increased capital costs and a staggering rise in the costs for fuel. In addition to this, the rise in peak power demand continues almost at historical levels resulting in lower plant utilization. Current rate schedules do little to improve the utilities' load factors and,in fact, encourage consumption. Time of day rate structures have been suggested as one load management device. This thesis investigates the impact of commercial cooling systems on the utilities supply picture and describes an off-peak cooling system which would enable a building operator to shift chiller operation to off-peak hours. The chillers draw heat from a water/glycol coolant, cooling it to 20°F. The coolant circulates through a series of coiled pipes inside a water filled storage tank. As heat is drawn from the water, ice forms around the pipe heat exchanger. With a cool ant temperature of 20°F the ice cylinder will form out to a diameter of 3.4" in 10 hours. Optimum pipe spacing is 3.5" on center. Polyethylene pipe is preferred to copper pipe for cost and fabrication reasons. The plastic pipes are grouped in discrete modules which allow flexibility in design. Building cooling loads are managed by circulating the remaining 32°F tank water through a heat exchanger coupled to the air handling units cooling coils. The warm water is returned to the tank where the heat is absorbed by the ice. Economic analysis using the present electric schedules indicate a favorable return on investment Time of day rates would make the system look even more desirable. / by Edward M. Quinlan. / M.S.
8

Spot pricing of public utility services

Bohn, Roger Eric January 1982 (has links)
Thesis (Ph.D.)--Massachusetts Institute of Technology, Sloan School of Management, 1982. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND DEWEY. Dewey second copy is in one volume. / Bibliography: leaves 348-355. / by Roger Eric Bohn. / Ph.D.
9

Oligopoly market models applied to electric utilities : how will generating companies behave in a deregulated industry?

Cunningham, Lance Brian 07 March 2011 (has links)
Not available / text
10

Energy price modelling and risk management

Kwok, Ho King Calvin, Actuarial Studies, Australian School of Business, UNSW January 2007 (has links)
This thesis focuses on the development of a forecasting model for short- to medium-term electricity spot prices, based on modelling the dynamics of the supply and demand functions. It is found that the equilibrium assumption frequently adopted in electricity price models does not always hold; to overcome this problem, a notional demand process derived from the market clearing condition is proposed. Not only is this demand process able to capture all the price-affecting factors in one variable, but it also allows the equilibrium assumption to be satisfied and a spot price model to be built, using any appropriate form of hypothetical supply function. In addition, this thesis presents a model for approximating and modelling the bid stacks by capturing the points that govern their shape and location. Integrating these two models provides a realistic model that has a mean absolute percentage error of approximately 19% and 24% for week- and month-ahead forecasts respectively, when applied to the New South Wales (NSW) half-hourly electricity spot prices. Additionally, the density forecasting evaluation method proposed by Diebold et al. (1998) is employed in the thesis to assess the performance of the model. Besides the development of a spot price model, a two-part empirical study is made of the prices of NSW electricity futures contracts. The first part of the study develops a method based on the principle of certainty equivalence, which enables the market utility function to be recovered from a set of futures market quotes. The method is tested with two different sets of simulated data and works as expected. However, it is unable to obtain useful results from the NSW market quotes due to the poor data quality. The second part uses a regression method to investigate the relationship between futures prices and the descriptive statistics of the underlying spot prices. The result suggests that futures prices in NSW are linear combinations of the median and volatility of the final payoff.

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