• Title, Summary, Keyword: electricity industry

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DECADES database implementation and application for the enhanced electricity system analysis methodology in the restructured electricity industry (전력 구조 개편에 따른 환경 영향 평가 및 경제적 분석을 위한 DECADES 데이터 베이스 구축 및 활용)

  • Oh, Young-Jin;Noh, Jae-Hyung;Kim, Bal-Ho;Chun, Yeong-Han;Park, Jong-Bae
    • Proceedings of the KIEE Conference
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    • pp.386-388
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    • 2002
  • The key objectives of this study are to develop the enhanced electricity system analysis methodologies and decision making process applicable to the analysis of the energy policies, especially the renewable energy policy, through surveying the recent trend and relevant study results. This study utilizes DECADES model, a comparative assessment tool developed by IAEA, and suggests a way to establish DECADES database required to make it applicable to Korean electricity system analysis. For this, a survey on the existing database of various organizations is performed. A case study on the economic and environmental impact of renewable energy is made using DECADES model.

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Analysis of Electricity Use of Commercial Buildings by End-Use (업무용 건물의 End-Use 전력 사용실태 분석)

  • Park, Jong-Jin;Rhee, Chang-Ho
    • Proceedings of the KIEE Conference
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    • pp.1150-1152
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    • 1998
  • Recently, our electric industry confronts a structural change and high competiveness environment in the course of deregulation. Rapid growth in electricity demand, financial need for new power plant construction, and envionmental problems have led to search for more efficient energy production and energy conservation techmologies. Especially, residential and commercial buildings consumes 40% of electricity demands and building energies are increasing more and more in Korea. The purpose of this paper is to analyze the electricity use of commercial buildings by end-use. Also, we will use it as a basic informations of DSM potential evaluation and evaluation process based on different approach by sector and type of potential.

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Development of the Load Curtailment Allocation Algorithm for Load Aggregator in Emergeney Demand Response (부하관리사업자의 비상시 부하제어량 배분 알고리즘 개발)

  • Chung, Koo-Hyung;Kim, Jin-Ho;Kim, Bal-Ho
    • Proceedings of the KIEE Conference
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    • pp.633-635
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    • 2003
  • Electricity industries throughout the world are undergoing unprecedented changes. As a result, these changes lead to the separation of traditional integrated utilities and the introduction of competition in order that increase efficiency in electricity industry. Direct load control (DLC) system in competitive electricity market has a hierarchical interactive operation system, therefore, its control logic is also applied by bilateral interactive method that interchanges information related to interruptible load between operation hierarchies. Consequently, load curtailment allocation algorithm appropriate for new DLC system is required, and based on interchanged information, this algorithm should be implemented by most efficient way for each operation hierarchy. In this paper, we develop the load curtailment allocation algorithm in an emergency for new DLC system. Especially, the optimal algorithm for load aggregator (LA) that participates in competitive electricity market as a main operator for load management is developed.

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Analysis of Price-Clearing in the Generation Bidding Competition (발전입찰경쟁에서의 가격결정에 관한 분석)

  • 정구형;강동주;김발호;전영환
    • The Transactions of the Korean Institute of Electrical Engineers A
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    • v.53 no.1
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    • pp.56-66
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    • 2004
  • As deregulation evolves, pricing electricity becomes a major issue in the electric industry. Participants of competitive marketplace are able to improve their profits substantially by adequately pricing the electricity. In this paper, game theory is applied to analyze the price-clearing in the generation bidding competition and the competition is modeled as the noncooperative and complete information. The result of this analysis can be useful in understanding spot price-clearing of electricity and generating entity's strategic behavior in the competitive electricity market.

Development of the Load Curtailment Allocation Algorithm for Load Aggregator in Emergency Demand Response (부하관리사업자의 비상시 부하제어량 배분 알고리즘 개발)

  • 정구형;김진호;김발호
    • The Transactions of the Korean Institute of Electrical Engineers A
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    • v.53 no.8
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    • pp.466-471
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    • 2004
  • Electricity industries throughout the world are undergoing unprecedented changes. As a result, these changes lead to the separation of traditional integrated utilities and the introduction of competition in order that increase efficiency in electricity industry. Direct load control (DLC) system in competitive electricity market has a hierarchical interactive operation system, therefore, its control logic is also applied by bilateral interactive method that interchanges information related to interruptible load between operation hierarchies. Consequently, load curtailment allocation algorithm appropriate for new DLC system is required, and based on interchanged information, this algorithm should be implemented by most efficient way for each operation hierarchy. In this paper, we develop the load curtailment allocation algorithm in an emergency for new DLC system. Especially, the optimal algorithm for load aggregator (LA) that participates in competitive electricity market as a main operator for load management is developed.

Analysis of Price-Clearing in the Generation Bidding Competition

  • Chung, Koohyung;Kang, Dongjoo;Kim, Balho H.;Chun, Yeonghan
    • KIEE International Transactions on Power Engineering
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    • v.4A no.4
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    • pp.243-253
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    • 2004
  • As deregulation evolves, pricing electricity becomes a major issue in the electric power industry. Participants in the competitive marketplace are able to improve their profits substantially by effectively pricing the electricity. In this paper, game theory is applied to analyze price-clearing in the generation bidding competition with the competition modeled as the non-cooperative and complete information game. The result of this analysis can be useful in understanding spot price-clearing of electricity as well as GENCOs' strategic behavior in the competitive electricity market.

Development of Market Modeling and Price Simulator(MMPS) Under the .NET Framework (닷넷 환경기반의 시장 모델링 및 가격모의 프로그램 개발)

  • Hur Jin;Kang Dong-Joo;Jung Hae-Sung;Moon Young-Hwan
    • The Transactions of the Korean Institute of Electrical Engineers A
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    • v.54 no.2
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    • pp.88-96
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    • 2005
  • At present, the Korean electricity industry is undergoing restructuring and the Cost Based-generation Pool(CBP) market is being operated preparing for Two Way Bidding Pool(TWBP) market open. As the circumstance of the traditional system is changed according to power system deregulation, the simulation tool which should reflect market code providing market operating mechanism is needed to analyze an electricity market. This paper presents the development of an unique market simulator, Market Modeling and Price Simulator(MMPS) that is designed to imitate the Korean electricity market considering uniform price. The MMPS is developed in VB.NET and is composed of two modules that consist of market modeling and price simulation interfacing access database program. To evidence the features and the performance of MMPS, a small two way bidding market with 12-bus system and one way bidding market for generator competition will be presented for the electricity market simulations using MMPS.

A Study on Demand Pattern Analysis for Forecasting of Customer's Electricity Demand (수요측 전력사용량 예측을 위한 수요패턴 분석 연구)

  • Ko, Jong-Min;Yang, Il-Kwon;Yu, In-Hyeob
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.57 no.8
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    • pp.1342-1348
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    • 2008
  • One important objective of the electricity market is to decrease the price by ensuring stability in the market operation. Interconnected to this is another objective; namely, to realize sustainable consumption of electricity by equitably distributing the effects and benefits of participating in the market among all participants of the industry. One method that can help achieve these objectives is the ^{(R)}$demand-response program, - which allows for active adjustment of the loadage from the demand side in response to the price. The demand-response program requires a customer baseline load (CBL), a criterion of calculating the success of decreases in demand. This study was conducted in order to calculate undistorted CBL by analyzing the correlations between such external or seasonal factors as temperature, humidity, and discomfort indices and the amounts of electricity consumed. The method and findings of this study are accordingly explicated.

An Analysis of the R&D Investment Efficiency in Power Industry (전력산업의 연구개발투자 효율성 분석)

  • 강희정;조용현;최기련
    • Journal of Energy Engineering
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    • v.6 no.2
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    • pp.145-151
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    • 1997
  • The R&D investment of power industry has significant influences on the social welfare as well as national economy. It is necessary to analyze how efficient the R&D investment has been performed. The objective of this study is to verify the efficiency of the R&D investment in the domestic power industry. A formula was introduced to by calculate the appropriate amount of R&D investment of monopolistic industry under the regulations which are determined by the proportion of R&D elasticity and price elasticity. It has resulted that there would be no economy of scale as the sales of electricity increases at the same rate of the increasing cost. The R&D investment in the present electricity industry has been performed inefficiently by showing the negative impact on price-cost margin of the intensity of R&D investment, which is the extent of R&D investment to reinforce economy of scale.

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An historical analysis on the carbon lock-in of Korean electricity industry (한국 전력산업의 탄소고착에 대한 역사적 분석)

  • Chae, Yeoungjin;Roh, Keonki;Park, Jung-Gu
    • Journal of Energy Engineering
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    • v.23 no.2
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    • pp.125-148
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    • 2014
  • This paper performs a historical analysis on the various factors contributing to the current carbon lock-in of Korean electricity industry by using techo-institutional complex. The possibilities of the industry's carbon lock-out toward more sustainable development are also investigated. It turns out that market, firm, consumer, and government factors are all responsible for the development of the carbon lock-in of Korean power industry; the Korean government consistently favoring large power plants based on the economy of scale; below-cost electricity tariff; inflation policy to suppress increases in power price; rapid demand growth in summer and winter seasons; rigidities of electricity tariff; and expansion of gas-fired and imported coal-fired large power plants. On the other hand, except for nuclear power generation and smart grid, environment laws and new and renewable energy laws are the other remaining factors contributing to the carbon lock-out. Considering three key points that Korea is an export-oriented economy, the generation mix is the most critical factor to decide the amounts of carbon emission in the power industry, and the share of industry and commercial power consumption is over 85%, it is unlikely that Korea will achieve the carbon lock-out of power industry in the near future. Therefore, there are needs for more integrated approaches from market, firm, consumer, and government all together in order to achieve the carbon lock-out in the electricity industry. Firstly, from the market perspective, it is necessary to persue more active new and renewable energy penetration and to guarantee consumer choices by mitigating the incumbent's monopoly power as in the OECD countries. Secondly, from the firm perspective, the promotion of distributed energy system is urgent, which includes new and renewable resources and demand resources. Thirdly, from the consumer perspective, more green choices in the power tariff and customer awareness on the carbon lock-out are needed. Lastly, the government shall urgently improve power planning frameworks to include the various externalities that were not properly reflected in the past such as environmental and social conflict costs.