• 대한전기학회논문지:전력기술부문A
• /
• 제52권6호
• /
• pp.333-339
• /
• 2003

Competition among electric generation companies is a major goal of restructuring in the electricity industry. In electricity market, a huge volume of commodities will be traded through competitive bidding. The choice between uniform and pay-as-bid pricing for electricity auction has been one of most important issues in deregulated electricity market. This paper proposes a constrained Bertrand model for analyzing the electricity auction market of price competition model. The issue of the two pricing rules of uniform and pay-as-bid is studied from the viewpoint of consumer's benefit. This paper also shows that transmission congestion depends on the pricing mechanism. Pay-as-bid pricing gives less possibility of transmission congestion by price competition, and less burden to consumers in the simulation results.

• 대한전기학회논문지:전력기술부문A
• /
• 제50권12호
• /
• pp.549-555
• /
• 2001

Due to the development of information technology, the operating power systems under the deregulated environment has the advantages of a introduction of the market function, a competition in sales and purchases of Power, as well as the difficulty of maintaining reliability on the same or high level with it in a monopolistic market. This paper presents a basic scheme of the congestion management in the Korea electricity market under the deregulated environment. We investigated some cases of the congestion management in the world and the effects of the congestion management in the power systems. A basic idea of the congestion management in the Korea is presented based on the analysis of transmission congestion management in the competitive electricity market.

• 한국전기전자재료학회논문지
• /
• 제28권5호
• /
• pp.344-349
• /
• 2015

A new information society of late has arrived by the rapid development of various information & communications technologies. Accordingly, mobile devices which are light and thin, easy and convenient to carry on the market. Also, the requirements for the larger television sets such as fast response speed, low-cost electric power, wider visual angle display are sufficiently satisfied. The currently most widely studied display material, the Organic Light-emitting Diodes(OLEDs) overwhelms the Liquid Crystal Display(LCD), the main occupier of the market. This new material features a response speed of more than a thousand times faster, no need of backlight, a low driving voltage, and no limit of view angle. And the OLEDs has high luminance efficiency and excellent durability and environment resistance, quite different from the inorganic LED light source. The OLEDs with simple device structure and easy produce can be manufactured in various shapes such as a point light source, a linear light source, a surface light source. This will surely dominate the market for the next generation lighting and display device. The new display utilizes not the glass substrate but the plastic one, resulting in the thin and flexible substrate that can be curved and flattened out as needed. In this paper, OLEDs device was produced by changing thickness of Teflon-AF of hole injection material layer. And as for the electrical properties, the four layer device of ITO/TPD/$Alq_3$/BCP/LiF/Al and the five layer device of ITO/Teflon AF/TPD/$Alq_3$/BCP/Lif/Al were studied experimentally.

• 한국콘텐츠학회:학술대회논문집
• /
• 한국콘텐츠학회 2008년도 춘계 종합학술대회 논문집
• /
• pp.112-115
• /
• 2008

최근 한전에서는 배전부문을 분리하여 발전부문과 배전부문이 입찰시장에 참여하여 수요와 공급에 따라 시장가격이 결정되고 송전망을 개방 배전회사의 자유로운 사용을 보장하고 있다. 본 논문에서는 전력 수요 요인(기온, 경제성장)에 따른 패턴을 추출하여 전력 수요를 예측 한다. 예측된 데이터들을 Database화하여 Web으로 보여주며 발전 최적 시장가를 제안한다. 제안 시스템은 앞으로 개방될 전력 수급 시장에서 정확한 수요 예측을 통하여 경쟁력을 향상 시키고 전력 수급의 원활을 통해 소비자의 만족도를 증가시킨다. 또한 전년, 전월, 전주, 전일의 시간대별 전력 사용량을 미리 예측하고, 분석하기 때문에 공급자가 전력을 생산하는데 필요한 기본요금 절감효과와 하한가를 정함으로써, 사용자의 기본요금 지출을 절감할 수 있다.

• 한국신재생에너지학회:학술대회논문집
• /
• 한국신재생에너지학회 2009년도 춘계학술대회 논문집
• /
• pp.574-578
• /
• 2009

Residential is the biggest market for geothermal heatpump systems in the world. However It could not be considered as a big market in Korea. Serious problems are hidden. In this paper, I will discuss about with other problems that we must solve.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 2000년도 추계학술대회 논문집 학회본부 A
• /
• pp.110-112
• /
• 2000

This paper presents a basic scheme of the congestion management in the Korea electricity market under the deregulated environment. We investigated some cases of the congestion management in the world and the effects of the congestion management in a real data. A basic idea of the congestion management in the Korea is presented based on the analysis of transmission congestion management in the competitive electricity market.

• 한국기술혁신학회:학술대회논문집
• /
• 한국기술혁신학회 2001년도 춘계학술대회:발표자료
• /
• pp.557-572
• /
• 2001

This study tries to analyze the possibility of application of project financing to electricity industry and analyze the management of risks happening in the process of foreign project procurement and construction. Those are based on the trends and analysis of project financing in foreign projects. Risks are 'classified as risks before completion of projects and risks after completion. Project financing is key element of exportation and financial strategies and activation of project financing may provide the acceleration of the efficient financial market.

• 자원ㆍ환경경제연구
• /
• 제21권3호
• /
• pp.595-625
• /
• 2012

최근 온실가스 배출 규제와 에너지 안보에 대한 관심이 고조되면서 친환경연료인 목재 펠릿을 이용한 펠릿 보일러가 주목받고 있다. 그러나 친환경 기술인 펠릿 보일러는 아직 시장 초기단계로 정부에서 펠릿 보일러에 대한 지원정책을 통해 펠릿 보일러 보급사업을 실시하고 있다. 따라서 펠릿 보일러에 대한 미래시장 점유율을 예측함으로써 정부와 기업이 보다 효과적인 보급정책과 시장전략을 추진할 수 있을 것이다. 이를 위해서는 펠릿 보일러에 대한 소비자 선호를 분석해야 하며 본 연구는 신기술이 갖는 무형의 비용을 반영한 선택실험법을 적용하여 펠릿 보일러에 대한 시장 점유율을 추정하였다. 신기술의 시장 점유율이 확산되고, 기술 신뢰도가 향상됨에 따라 무형의 비용이 감소하게 된다. 상이한 무형의 비용을 가정한 시나리오별로 전기보일러, 가스보일러, 기름보일러, 펠릿 보일러의 선호를 선택 실험법에 의해 조사하였다. 다항로짓모형을 이용하여 속성별 파라메터를 추정하고, 시나리오별로 보일러별 시장 점유율을 예측하였다. 추정 결과 무형의 비용이 감소함에 따라 펠릿 보일러의 시장점유율이 점차 증가함을 알 수 있었다. 또한 가스보일러와 전기보일러에 대한 대체효과가 크게 나타났다. 한편 목재 펠릿 전용 사용자 집단과 일반 보일러 사용자 집단간의 속성별 지불용의액과 시장 점유율에 차이가 발생하고, 소득, 교육, 가족수, 신기술 인식 수준과 같은 개인별 속성에 대해 선호의 이질성이 부분적으로 존재함을 확인하였다.

• 산경연구논집
• /
• 제10권1호
• /
• pp.29-37
• /
• 2019

Purpose - We study the dynamic linkages of the economic policy uncertainty (EPU) in the US on the manufacturing stock market returns in Korea. In detail, we examine the casual link between EPU index in the US and the manufacturing stock indexes in Korea. Research design, data, and methodology - We measure mainly the distribution effect of the US EPU on the manufacturing stock market in Korea of 1990-2017 by the vector error correction model (VECM). Result - In result, we estimate the impact of the US EPU index has significantly a negative response to the manufacturing stock market in Korea such as non-metal stock index, chemical stock index, food stock index, textile·clothes stock index, automobile·shipbuilding stock index, machinery stock index, steel·metal stock index. Also the remaining variables such as electric·electronics stock index, S&P 500, and producer price index in Korea have a negative relationship with US EPU index. Conclusions - We find out that the relationship between EPU index of the US and the manufacturing stock market in Korea has the negative relationships. We determine the EPU of the US has the spillover effect on the industry stock markets in Korea.

• 한국환경과학회지
• /
• 제22권8호
• /
• pp.1063-1072
• /
• 2013

To overcome the ecosystem-crisis of resource depletion and climate change, we should maintain and develop a 'Sustainability' of our society. 'After-market' is defined like this : any market where customers who buy one product or service are likely to buy a related follow-on product. This is related to a automotive, electric and electronic, and remanufacturing industry. 'After-market' will be helpful for reuse and recycling of resources aspects, cost and economic efficiency, low-carbon, climate protection, and new industries and job creation effects, To promote 'After-Market', we need to guarantee the quality of products. In this regard, we refer and introduce a new standard, for example, BS8887, PAS141 and ISO20245 etc. In order to promote 'After-Market', first of all, product quality assurance and safety must be demonstrated in the process of reuse. Second, many aspects of a device that protects the rights of consumers to be provided. And third, the related laws and standards should be reviewed. Finally, original manufacturer's awareness for environmental protection and resource conservation and government's institutional support are needed.