• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2002년도 봄 학술발표회 논문집
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• pp.439-444
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• 2002

Geothermal or ground source heat pumps(GSHPs) are electrically powered systems that take advantage of the earth's relatively constant temperature to provide heating, cooling, and hot water for homes and commercial buildings. The buried pipe, or ground loop, is the most recent technical advance in heat pump technology. The idea to bury pipe in the ground to gather heat energy began in the 1940s. Only recently, however, have new heat pump designs and improved buried pipe materials been combined to make GHP systems the most efficient heating and cooling systems available. The aim of the study is application of the GSHP system in korea. Our environments for economy, politics and society are different from other countries. For a case, the progressive tax rate of home electricity is represented.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 1997년도 춘계학술발표회논문집(2)
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• pp.651-656
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• 1997

Efforts are made to examine the role nuclear energy under the international carbon emissions regulation. To do so, an econometric model for energy demand and supply is developed. Here, several scenarios on the regulation are assumed and then each scenario is analyzed by using this model. This model also makes it Possible to analyze the effect of carbon tax. The results show that share nuclear increases up to 60% in 2020 Instead 45% makes GDP rise by 1.9% while the electricity price lower by 46% in carbon emission regulation.

• 전자통신동향분석
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• 제36권3호
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• pp.1-11
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• 2021

In this study, we analyze the automotive chip ecosystem that recently caused the global supply shortage, and attempt to derive policy implications for us from the conclusion. Automotive chips are critical parts that control various systems so that a vehicle can drive itself or operate with electricity. The current shortage in supply and demand for automotive chips is due to the inconsistency between supply and demand between automotive chip companies and car manufacturers. To promote the automotive chip industry, new investment incentives, tax cuts, and human resource training are needed.

• 환경정책연구
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• 제11권3호
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• pp.97-122
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• 2012

이 논문은 온실가스저감정책으로 인해 에너지가격이 상승될 때, 자동차산업의 생산, 고용, 수출 및 소비에 어떠한 영향이 있는지를 실증적으로 분석하고자 한다. 자동차산업의 경우 생산액과 부가가치는 에너지가격 상승에 따른 충격이 유의적이지 않았다. 자동차산업에서 많이 사용하는 전력가격의 상승도 생산과 부가가치에 부정적 영향을 주지만 유의적이지는 않았다. 고용에 대해서는 전력가격이 유의적으로 부정적 영향을 미치는 것으로 나타났다. 수출 역시 에너지가격이 부정적인 영향을 미치는 것으로 나타나지만 유의적이지는 않았다. 소비의 경우에는 석유가격의 상승이 부정적인 영향을 미치기는 하나 유의적이지는 않았다. 이는 탄소세나 배출권거래제도와 같이 전력가격을 상승시키는 온실가스저감정책은 자동차산업의 고용에 미치는 영향이 부정적임을 시사한다. 특히 자동차산업의 고용 측면에서는 온실가스저감정책에 따른 충격을 완화시키는 정책수단이 추가적으로 요구된다고 할 수 있다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제15권7호
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• pp.2377-2398
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• 2021

In the recent modernized world, utilization of natural resources (renewable & non-renewable) is increasing drastically due to the sophisticated life style of the people. The over-consumption of non-renewable resources causes pollution which leads to global warming. Consequently, government agencies have been taking several initiatives to control the over-consumption of non-renewable natural resources and encourage the production of renewable energy resources. In this regard, we introduce an IoT powered integrated framework called as green home architecture (GHA) for green score calculation based on the usage of natural resources for household purpose. Green score is a credit point (i.e.,10 pts) of a family which can be calculated once in a month based on the utilization of energy, production of renewable energy and pollution caused. The green score can be improved by reducing the consumption of energy, generation of renewable energy and preventing the pollution. The main objective of GHA is to monitor the day-to-day usage of resources and calculate the green score using the proposed green score algorithm. This algorithm gives positive credits for economic consumption of resources and production of renewable energy and also it gives negative credits for pollution caused. Here, we recommend a green score based tax calculation system which gives tax exemption based on the green score value. This direct beneficiary model will appreciate and encourage the citizens to consume fewer natural resources and prevent pollution. Rather than simply giving subsidy, this proposed system allows monitoring the subsidy scheme periodically and encourages the proper working system with tax exemption rewards. Also, our GHA will be used to monitor all the household appliances, vehicles, wind mills, electricity meter, water re-treatment plant, pollution level to read the consumption/production in appropriate units by using the suitable sensors. These values will be stored in mass storage platform like cloud for the calculation of green score and also employed for billing purpose by the government agencies. This integrated platform can replace the manual billing and directly benefits the government.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2009년도 춘계학술대회 논문집
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• pp.806-812
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• 2009

Availability of reliable and affordable energy supply is a prerequisite for economic growth. Renewables are the third largest contributor to global electricity production after coal and natural gas and account for a share of 18%. Power generating capacity from renewables has increased to around 900GW by the year 2007. Today biodiesel fuels have been in commercial use in many countries and recently the world-wide biodiesel market has experienced considerable growth, which is partly due to various tax concession programs and other financial incentives. In Korea, biodiesel has already been used for transportation fuel, but not used for power generation fuel yet. Korean government has a strategy for renewable energy propagation, especially the goal of power generation amount by renewable energy is 3% of total power production by 2012. This paper focuses on the feasibility study for adaptability and strategy of using biodiesel as power generation fuel. The study also has the plan to replace the fuel of thermal power plant, gas turbine and distributed power system. As the increase of biodiesel fuel, I look forward to environment-friendly power generation and the strategy of Renewable Portfolio Standards(RPS).

• 신재생에너지
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• 제5권1호
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• pp.32-39
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• 2009

Availability of reliable and affordable energy supply is a prerequisite for economic growth. Renewables are the third largest contributor to global electricity production after coal and natural gas and account for a share of 18%. Power generating capacity from renewables has increased to around 900GW by the year 2007. Today biodiesel fuels have been in commercial use in many countries and recently the world-wide biodiesel market has experienced considerable growth, which is partly due to various tax concession programs and other financial incentives. In Korea, biodiesel has already been used for transportation fuel, but not used for power generation fuel yet Korean government has a strategy for renewable energy propagation, especially the goal of power generation amount by renewable energy is 3% of total power production by 2012. This paper focuses on the feasibility study for adaptability and strategy of using biodiesel as power generation fuel. The study also has the plan to replace the fuel of thermal power plant, gas turbine and distributed power system. As the increase of biodiesel fuel, I look forward to environment-friendly power generation and the strategy of Renewable Portfolio Standards(RPS).

• 한국기후변화학회지
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• 제4권2호
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• pp.105-114
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• 2013

우리나라의 해외투자는 현지 자본시장에 투자하는 방법에서, 현지에 회사를 설립하여 운용하는 해외직접투자로 바뀌고 있다. 해외직접투자는 다양한 동기에서 이루어지며, 신 재생에너지 사업에 대한 해외직접투자 또한 다양한 각도에서 검토되고 있다. 국내 기업은 해외의 신 재생에너지 사업에 대한 진출을 통하여 장비의 수출, 건설공사 수주, 프로젝트 관리기술의 습득 및 시장선점의 효과를 누릴 수 있다. 또한, 투자수익을 향유할 수도 있다. 이러한 이유에서 신 재생에너지 사업 중 시장규모가 가장 큰 풍력발전을 대상으로 중국, 미국, 독일, 영국 등 해외 4개 국가의 풍력발전사업에 투자한다고 가정하여 각 국가의 전력단가, 인플레이션율, 법인세율, 부채조달이자율 등이 수익률에 미치는 영향을 비교분석하였다. 분석 결과, 전력판매단가가 가장 높은 독일의 경우가 수익률이 가장 높았으며, 개별적인 요인 중 각 국가의 전력판매단가와 부채이자율이 수익률에 중요한 영향을 미치는 것으로 나타났다. 이러한 분석방법이 향후 풍력발전사업에 대한 해외 직접투자시 적절한 투자의 사결정을 하는데 도움이 될 것으로 판단된다.

• 자원ㆍ환경경제연구
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• 제28권2호
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• pp.307-326
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• 2019

전기자동차는 수송부문의 대표적인 온실가스 및 미세먼지 감축 대책으로 손꼽히고 있다. 세계 각 국가들은 전기자동차 보급 확대를 위해 구매 보조금 및 세제 감면 등의 자원제도를 시행하고 있다. 전기자동차는 주행 중에 발생하는 환경오염물질이 없다는 점에서 무배출차량(ZEV: Zero-Emission Vehicle)로 분류되지만 이는 전기자동차에 사용되는 전력을 생산하는 과정에서 발생되는 간접적인 배출을 고려하지 않은 것이다. 따라서 전기자동차의 보급에 따른 환경적 편익 증대는 전력 믹스에 따라 달라진다. 본 논문에서는 국내의 전원 구성 환경과 향후 진행될 에너지 전환에 따른 전기자동차의 환경적 영향을 분석하였다. 상세한 대기오염물질 배출 산정을 위해 각 발전소의 시간별 오염물질 배출과 발전량 데이터를 구축하여 발전소별 발전효율 및 오염물질 배출량 저감 노력 등을 반영하였다. 분석결과 현재의 발전원별 비중에서는 전기자동차의 환경적 편익이 -0.41~10.83원/km에 불과한 것으로 분석되었다. 또한 에너지 전환 시나리오에 따른 전기자동차의 환경편익 분석결과 석탄 발전의 비중이 상당한 정도로 줄어드는 경우에만 전기자동차가 내연자동차에 비해 높은 수준의 환경 편익이 발생하는 것으로 나타났다.

• 농촌지도와개발
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• 제11권2호
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• pp.251-265
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• 2004

The agricultural sector's economic structure in Korea is regarded to encounter major barriers on the way toward revitalizing its economic prosperity. Among many, the energy-related problem is one of prime nuclei embedded in the country's agricultural sector. The ought-to-come structural changes in the country's agricultural energy system hinge upon the central government's policy direction as well as efforts of local governments and local farming community members. The indirect aids via 'cross subsidy' of electricity tariff rate and 'tax-exempt price' of oil fuels are two notable causes of the unsustainable energy consumption pattern in the country's agricultural sector. As measures, demand-side management(DSM) and energy-efficiency promotions are regarded to be the most attractive methods for energy conservation and economic productivity as well. Development of renewable energy sources are also receiving a great deal of attention for the long-term alternatives to the country's existing oil-based agricultural production mode. This study examines the contributive potential of DSM approaches and renewables-based technologies. With the critical evaluation on the concurrent adversities of the country's agricultural energy system, various sources of renewable energy-solar power, wind power, biomass, etc.-are examined for the purpose of technological and economical viability. As sufficient potentials of renewable energy sources are being estimated, both the system production cost and the installation cost for the county's rural areas are expected to lower in the long term. DSM options are also evaluated to be fruitful even in the short term. Both the public and civil arenas must galvanise each side's effort in order to promote these policy options and community potentials.