• 한국시스템다이내믹스연구
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• 제15권2호
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• pp.27-50
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• 2014

Korea government established the energy technology development plan (2011-2020) and declared to be a leader of the green energy technologies. The plan aims for 10% market share in the green energy industry, 12% energy efficiency improvement, and 15% greenhouse gas reduction. In order to achieve these goals, the government has tried to calculate the whole scale of national energy R&D investment, annual budget and specific expenditures for new technologies by computer simulation. The simulation modules include the R&D investment model, GDP model, energy consumption and $CO_2$ emission model by System Dynamics. Based on these simulation modules, I tested various scenarios for effectiveness of energy R&D investments until 2020. The results show that Korea should increase national energy R&D investment to 2.3 billion U.S. dollars, and switch the investment from electricity and nuclear power to the renewable energy.

• 전기학회논문지
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• 제59권9호
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• pp.1566-1574
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• 2010

This paper presents an in-depth review for current status for demand-side management (DSM) investment of energy supplier and an useful prospect on the introduction of Energy Efficiency Resource Standards (EERS). According to the Article 9 of Rational Energy Utilization Act, Energy suppliers-Korea Electric Power Corporation (KEPCO), Korea Gas Corporation (KOGAS) and Korea District Heat Corporation (KDHC) prescribed by Presidential Decree-must establish and implement annual demand-side management investment plan to improve energy efficiency in production, transformation, transportation, storage and usage of corresponding energy and to reduce demand and green house gas emissions. In this paper, we examine the DSM programs of energy suppliers and the results of DSM investment in 2009, then we propose a reasonable solution for the development of DSM investment. Furthermore, in order to compare our situation, the case studies were conducted on EERS issues in England, Italy, France and U.S, such as establishing the energy saving target, selecting the target energy supplier, and penalty and incentive mechanisms. Throughout the case studies, this paper suggests the directions to the DSM investment planning of energy suppliers and the major issues to prepare EERS in Korea.

• 자원ㆍ환경경제연구
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• 제20권2호
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• pp.291-308
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• 2011

정부의 '저탄소 녹색성장' 정책기조의 실현가능성 여부는 에너지절약 자본시설에 투자할 경우 과연 산업의 생산성 증가로 이어질 수 있는지 여부에 달려 있다. 본 논문에서는 1차 금속산업을 대상으로 쌍대 비용함수로부터 총 요소생산성을 정의하고 산업생산성 증가의 요인별 분석을 통하여 에너지효율화 투자의 생산성 증가 파급효과를 측정하였다. 1982년~2006년 기간 동안 에너지효율화 투자로 인하여 평균적으로 연간 생산성은 1.16% 포인트 증가한 것으로 추정되었다. 또한 규모경제효과는 에너지효율화 투자의 생산성 증가 기여도를 향상시키는 것으로 나타났다.

• 대한산업공학회지
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• 제40권4호
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• pp.358-365
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• 2014

The purpose of this paper is to analyze the efficiency of government investment in the deployment and technological development of three technological areas - wind power, photovoltaic and fuel cell - of renewable energy in Korea using the DEA (data envelopment analysis). The efficiencies of government investment in renewable energies are measured and compared among three kinds of technologies using the actual data during 2007~2009. In the present DEA model, R&D investment and government subsidies for renewable energy usage promotion are selected as input variables, and the number of patents, supply level, and the production cost as output variable. As a result, it is found that the wind power is the most efficient renewable energy in Korea in the perspective of the efficiency of government investment.

• 한국시스템다이내믹스연구
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• 제14권4호
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• pp.91-112
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• 2013

This article aims at revealing the dynamic relationships between the energy R&D investment and economic growth in Korea. To achieve this goal, we reviewed the effects of energy R&D investments and tried to make the holistic interconnections for describing the feedback loops between energy R&D and economic system. Energy R&D investments develop the renewable energy, energy efficiency and $CO_2$ emission reductions technologies for accomplishing the national strategic targets. The rapid obsolescence of technologies makes the inefficiency and negative effects in governmental energy R&D investments.

• 설비공학논문집
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• 제30권1호
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• pp.10-16
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• 2018

The climate of summer in Korea is quite hot and humid. Many studies have been carried out to reduce the energy required for operating a dehumidifier. The dehumidifier is mainly connected to the cooling system since it operates in the summer. Conventional dehumidification methods often require additional cooling and energy for dehumidification. In this study, a system for increasing the efficiency by applying a membrane was analyzed. Its energy saving effect was analyzed when it was applied to residential buildings. Economic efficiency was also evaluated. As a result of this study, 9.0% energy savings were achieved for residential buildings. The investment recovery period was 28.9 years. Such long investment recovery period was because the initial investment cost was excessive and annual energy saving only appeared in the summer.

• 한국실내디자인학회논문집
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• 제21권4호
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• pp.114-120
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• 2012

There are lots of buildings which were built before the Legislation on building energy rating system. Remodeling of the buildings would be required for an improvement of the building energy rating system was enforced by the government. In the Passive Building Design, Elements which will be used for the remodeling are Insulation, Window, External venetian blind, Heat exchanger. The Purpose of this study is to indicate a Method for the improvement of Energy saving by an analysis of Construction Cost, Cost Evaluation, Energy performance Efficiency in applied design elements. In this study, the remodeling of existing public buildings to improve energy efficiency rating was applied to extract the elements of design-specific energy performance, efficiency, and the application of the designs that has been analyzed. The results were as follows: applying the design-specific cost-effective investment that represents the economy (investment efficiency/%) surveyed the average insulation(7.0%), triple glazed windows(10.1%), double glazed windows(12.1%), external shading(24.5%), and Heat(77.2%) were analyzed in order to be more efficient. Analysis of the basis of information on the existing public buildings to improve energy efficiency rating for the remodeling depending on driving conditions at a degree of individual difference. The main effect, however, depending on economic investment, design elements, heat exchangers, external awning, double glazed windows, triple glazed windows, insulation, is recommended as review of the order shall be determined.

• 한국국방경영분석학회지
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• 제35권2호
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• pp.99-117
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• 2009

에너지는 기업이 생산활동을 하는데 필수불가결한 요소이다. 그렇다면 에너지 가격이 상승할 때 기업의 이윤이 감소하지 않기 위한 조건은 무엇인가? 결론적으로 말해서 에너지 가격 변화율에 따른 생산성 향상 변화율이 총매출액 대비 에너지 비용보다 클 경우 기업은 에너지 가격의 상승으로 인한 충격을 피할 수 있다. 또한 기업이 에너지 비용을 낮춘다는 것은 에너지 효율성을 향상시킨다는 것이다. 이에 본 연구에서는 우리나라 제조업에서 유가의 상승이 에너지절약투자에 미치는 영향과 에너지절약투자가 에너지효율성에 미치는 영향을 분석하였다. 이를 통해서 에너지 가격의 상승에 따른 에너지 효율성의 변화와 그 요인을 함께 분석할 수 있다는 데에 본 연구의 의의를 두고자 한다.

• 에너지공학
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• 제6권2호
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• pp.145-151
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• 1997

전력산업의 연구개발투자는 국가경제에 미치는 영향뿐만 아니라 사회후생극대화측면에서도 그 영향은 상당히 크다. 이러한 연구개발투자가 얼마나 효율적으로 이루어져왔나를 분석하여 볼 필요가 있다. 따라서 규제하에서의 독점기업의 적정 연구개발투자규모는 연구개발탄력성과 가격탄력성의 비율로서 결정된다는 것을 수식으로 도출하여 전력산업의 연구개발투자의 효율성유무를 검증하였다. 그 결과 비용이 증가하면 전력판매랑은 증가하여 규모의 경제가 없는 것으로 나타났으며, 규모의 경제를 증가시키기 위해 투자되는 연구개발투자의 정도를 나타내는 연구개발투자집약도는 가격-비용 마진에 부의 효과를 나타내어 현재 전력산업은 연구개발투자가 비효율적으로 이루어지고 있음을 알 수 있다.

• Asia Pacific Journal of Business Review
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• 제5권2호
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• pp.19-44
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• 2021

Sub Saharan Africa (SSA) is receiving increased investments in the energy sector under the belt and road initiative (BRI) project since its inception in 2013. SSA has a worse energy efficiency ratio coupled with deficient electricity access, through analysis showed varied impacts on the SSA countries due to the BRI initiative. This study dilves into the influencing factors for Energy Efficiency (EE) in 38 SSA countries, applying the probit and logit approach for 2000-2018. The Multiple-regression model shows significant results of some variables such as foreign direct investment, gross domestic product, and port infrastructure quality being significant on EE under BRI initiative countries. However, the logit and probit models produce similar results and the marginal effect for the entire variable, except energy imports that do not likely impact EE. Furthermore, the interaction of quality of port infrastructure and foreign direct investment variables produces significant results, highlighting the increased investments SSA receives under the BRI initiative in the energy and transport sectors. The model Percent correctly predicted (PCP) value was about 84%, indicating it correctly classified the variables and about 16% not classified. The study recommends EE performance standards should be incorporated on energy projects in SSA to ensure that these projects are energy efficient and decouple SSA's energy demand from economic growth. The research proffers suggestions for policy regarding the BRI initiative in SSA and the implications on sustainable energy and building a community with a shared future.