• 토지주택연구
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• 제9권2호
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• pp.41-50
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• 2018

The purpose of this study is to review the U.S. renewable energy policies implemented by the federal government and the state governments to investigate potential barriers of renewable energy expansion and to develop policy implications for the successful renewable energy policy making in Korea. Recently, the restructuring in the energy supply chain has been being a new trend in many countries that shows a transition from traditional fossil fuels to sustainable renewable energy sources. The United States has enforced effective renewable energy policies (i.e., regulatory policies, financial incentives), which have led to the exploding growth of renewable energy facilities and productions over the last ten years. For example, many state governments in the U.S. are implementing Renewable Portfolio Standard (RPS) policies that require increased energy supply from renewable energy sources (i.e., solar, wind and geothermal). These RPS policies are expected to account for at least 10-50 percent of total electricity production in the next fifteen years. As part of results, in the recent three years, renewable energy in the U.S provided over 50 percent of total new power generation constructions. On the other hand, Korea initiated to develop climate change policies in 2008 for the Green Growth Policy that set up a target reduction of national Greenhouse Gas (GHG) emissions up to 37 percent by 2025. However, statistical data for accumulated renewable energy capacity refer that Korea is still in its early stage that contribute to only 7 percent of the total electricity production capacity and of which hydroelectric power occupied most of the production. Thus, new administration in Korea announced a new renewable energy policy (Renewable Energy 3020 Plan) in 2017 that will require over 95 percent of the total new generations as renewable energy facilities to achieve up to 20 percent of the total electricity production from renewable energy sources by 2030. However, to date, there have not been enough studies to figure out the barriers of the current policy environment and to develop implications about renewable energy policies to support the government plan in Korea. Therefore, this study reviewed the U.S. renewable energy policies compared with Korean policies that could show model cases to introduce related policies and to develop improved incentives to rapidly spread out renewable energy facilities in Korea.

• Current Photovoltaic Research
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• 제2권4호
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• pp.182-188
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• 2014

For the dissemination of new and renewable energy, Korean government introduced a renewable portfolio standard (RPS) scheme in 2012 after terminating feed-in tariff (FIT) scheme that was introduced in 2004. With the RPS scheme, 64.7% of its own goal (95.7% in PV and 63.3% in non-PV) was achieved in 2012 and 67.2% of that (94.9% in PV, 65% in non-PV) was achieved in 2013. The deployment of PV systems met the goal very well and that of non-PV did not. Recently, Korean government revised the target year of supplying 10% electricity from new and renewable energy from 2022 to 2024 and released a couple of measures on PV area. Recent studies showed that the bankability of a project plays a key role for PV dissemination. Therefore, the dissemination should be assessed from the point of bankability under the RPS scheme and a little adjustment is necessary to achieve the goal. Especially, installing a small size PV (<100 kwp) system needs a minimum REC price or a FIT scheme. In non-PV area, permission process is a common bottleneck and the related regulation should be eased. In addition, to achieve the long term goal, an implementing scenario has to be prepared. Currently, the portion of the waste-gas energy originated from fossil fuel is too large among the new and renewable energy sources and the portion should be lowered or eliminated in the 10% of electricity supply goal. Seoul Metropolitan Government (SMG) has its own FIT scheme for PV dissemination from 2014 SMG and revised the PV tariff from 50 to 100 won/kwh in effective of 2015. It is worth to spread the other provinces.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2011년도 제42회 하계학술대회
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• pp.1400-1401
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• 2011

RPS(Renewable Portfolio Standard) recently with the introduction of a new solar power development as the market expands, land shortage of solar power as an alternative site for installing solar water development has emerged. Solar water dams, reservoirs and water by taking advantage of available solar power development a new concept of private forest land in a way does not involve destruction of the forest land and water resources through efficient use of environmentally friendly energy production and water quality improvement There are a variety of benefits. This paper won the nation's first solar power to enforce the selection of the optimal location for solar power's award for planning theory and research techniques are intended to establish. Award of the solar system through the analysis of a few research-related materials and renewable energy systems project implementation process to establish an initial investigation techniques as well as the existing dam located about fitness will be assessed. In this study, solar water conducting business in the current analysis with considerable planning and installation of solar installation for the economic and environmental cost of the evaluation period and is expected to be able to give you one.

• 전기학회논문지
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• 제67권1호
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• pp.16-21
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• 2018

As a result of the Fukushima disaster and climate change due to excessive greenhouse gases, international energy affairs are currently focused on establishing safe and environment-friendly policies. To achieve this, Republic of Korea has established a plan for environment-friendly energy supplies. It is expected that policy enforcement will be accompanied by an increase in energy supply costs. An analysis of energy supply costs is necessary before the establishment of any national energy policy. This paper analyzes and compares the energy supply costs accompanying environmental and nuclear energy policies, based on the Korean National Energy Master Plan and the Basic Plan for Long-Term Electricity Supply and Demand, in order to understand the implications of these national energy policies.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2010년도 추계학술대회 초록집
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• pp.138.2-138.2
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• 2010

온실가스 저감과 안정적인 에너지 확보를 위해, 정부는 신재생에너지 지원사업 정책을 보급보조사업(그린홈 100만호 사업, 일반보급보조사업, 지방보급사업)과 기반보조사업(발전차액지원제도, RPS(Renewable Portfolio Standard)시범사업)으로 나누어 수행하고 있다. 특히 최근 개정된 "신에너지 및 재생에너지 개발 이용 보급 촉진법"에서는 RPS도입을 염두에 두고, 1차에너지 공급 중 신재생에너지 공급의무 비율은 2015년까지 13%, 특히 태양에너지는 2015년 1,209GWh라는 목표를 제시하고 있다. 신재생에너지보급이 지역적 특성을 갖고, 신재생에너지원별 비용측면의 경쟁력에 차이가 남에 따라, 향후 RPS 도입시 예상되는 지역별 경쟁력 평가는 중요한 의미를 가질 것으로 판단된다. 본 연구는 이러한 목적에 따라 우선 그린홈 100만호 사업, 일반 및 지방보급사업의 경우, 설비용량 당 투자비의 분포를 살펴보았다. 그린홈 100만호 사업의 설비용량 당 투자비는 평균($\bar{X}$) 6,449,032원/KW, 표본오차(s) 358,743으로 나타났다. 낮은 설비용량 당 투자비를 가지는 사업설비는 경남(4,256,667원/KW), 광주(4,331,333원/KW) 등에 분포하였다. 그린홈 100만호 사업 이외의 survey 데이터는 다소 불비한 측면이 있으나 일반 및 지방보급사업의 경우, 지역별 설비용량 당 투자비 분포에 대한 평균($\bar{X}$)은 9,145,692원/KW, 9,336,695원/KW, 표본오차(S) 2,154,263, 470,945로 나타났다. 발전차액지원제도의 경우, 지역별 설비보급에 대한 분포는 전남 389개 사업설비의 소용량 사업이 집중적인 지원을 받고 있음을 확인하였다. 본 연구는 에너지관리공단의 2009년 전수조사 내부자료인 국내 태양광사업의 현황을 분석함으로써, 태양광 사업에 가중치를 적용하는 RPS 도입 시, 보급경쟁력을 비교 분석하여 지역별, 설비별 사업투자를 위한 기초적인 가이드라인을 제공할 수 있을 것으로 판단된다. 연구과정에서 확인된 데이터 오류 및 자료 부재의 문제점 등은 향후 합당한 지역별, 설비별 비교분석을 위해 보완되어야 할 부분으로 지적한다.

• 한국환경복원기술학회지
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• 제17권4호
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• pp.17-27
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• 2014

Wind power which is one of renewable energies is higher economical efficiency and technical maturity than other renewable energies. Recently, the government of ROK announced to increase the proportion of renewable energy through the National Energy Plan. Also, industry required to deregulate for large-scale wind power as Renewable Portfolio Standard (RPS) is introduced. Wind power whereas the eco-friendly energy, is a serious level of damage of the natural environment and topography when the wind power is located. Therefore, the study selected the indicators required for site selection of wind power and proposed the feasible area for wind power based on wind resource map. We selected the 15 indicators including 12 legal protected area, Ecology and Nature Map, rarity, and connectivity (National Ecological Network). After site selection, we should be considered slope and altitude at the stage of design for wind farm to mitigate the environmental impact. Results of analysis showed that 22.3% of wind resource map is available to locate wind power in real. Through the field survey we had verified the accuracy of the results was significantly correct.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2011년도 추계학술대회 초록집
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• pp.152.2-152.2
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• 2011

본 연구는 2012년 시행할 예정인 신재생에너지 공급의무화제도(RPS) 하에서 신재생에너지 전력에 대한 추가비용 발생 시 국민들이 RPS 제도의 목표 및 형태에 대하여 어떤 선호를 가지고 있으며, RPS 제도에 대한 소비자들의 만족도를 높이기 위한 개선점이 있는지 알아보고자 수행되었다. 이에 소비자 선호를 조사하는 대표적인 연구방법론인 조건부가치평가법(CVM)을 활용하여, RPS 제도 하에서 발생 가능한 소비자 선호, 구성요소 합산효과 및 지역별 선호의 차이의 3개 주제에 대한 연구를 3차례 설문을 통해 수행하였다. 해당 연구의 주요 내용을 요약하면 다음과 같다. 첫째, 우리나라 국민들의 신재생에너지 전력에 대한 WTP는 가구당 1,456~1,560원/월 수준으로 이는 우리나라 가구당 월 평균 전기요금의 약 3.7~3.5% 수준에 해당한다. 이를 토대로 추산한 신재생에너지 전력 이용에 대한 국민들의 편익은 2011년 신재생에너지 보급 관련 예산의 42.4% 정도인 것으로 나타났다. 둘째, 국민들은 에너지원의 선택에 대한 비용 차이가 있을 시에는 개별 신재생에너지원을 대체재(substitutes)로 인식하였다. 그러나 에너지원의 선택에 대한 비용 차이가 없는 경우에는 특정 신재생에너지원에 대한 선호를 보이며, 특히 태양광에 대한 선호도가 가장 높게 도출되었다. 셋째, 소비자들의 선호도에 따른 재생에너지 포트폴리오를 적용한 결과, 우리나라 국민들은 연 2,618~2,806 GWh 규모의 신재생에너지 전력을 생산하는데 소요되는 추가비용을 지불할 의사가 있는 것으로 분석되었다. 이는 2010년도 우리나라 전체 전력 수요의 0.62~0.66% 정도로 RPS에서 목표로 하는 의무비율을 이행하기에는 부족한 것으로 보인다. 넷째, 신재생에너지 전력에 대한 선호는 지역별로 다르게 나타났다. 이는 지역 간 저항응답의 비율, 재생에너지 시설 인근 경험 및 재생에너지 시설 입지에 대한 찬반의사 등의 지역별 차이에서 기인하는 것으로 분석되었다.

• 한국농공학회논문집
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• 제61권3호
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• pp.89-99
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• 2019

The project to utilize kenaf as thermal power plant fuel has a positive effect on the unused energy utilization, greenhouse gas reduction, and farm income. However, it is analyzed that it is difficult to secure economical efficiency because the fuel cost of kenaf is higher than that of power by thermal power plant and Renewable Energy Certification (REC). The project of power generation using kenaf is meet the government's major policies, while government support is essential for securing economical efficiency. As a result of the sensitivity analysis on the ratio of the government subsidies, to secure economical efficiency, the power generation prices using kenaf through the direct financial support of the government indicate that 47% and 76% of kenaf fuel cost are supported by government in case of the Saemangeum reclamation and Gangneung-si, respectively. In the case of the government indirect policy support, if kenaf is included as a renewable energy source of Renewable Energy Portfolio Standard and REC is granted, the economic efficiency of Saemangeum reclamation and Gangneung-si is obtained when REC secured at 1.05 or more and 2.43 or more, respectively. The results of this study are meaningful in that the direct and indirect effects of the government on the development of the herbaceous energy crop, kenaf, were evaluated economically. These results are to suggest the need for demonstration study, but economics analyze and evaluate are necessary based on operational data through the demonstration phase in the future.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2015년도 제46회 하계학술대회
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• pp.455-456
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• 2015

2010년 민간 기업의 1,000 MW 규모 석탄 화력 발전소가 전력수급 기본계획에 최초로 반영된 이래로 이들이 해결해야 하는 가장 큰 난제는 RPS 제도 도입과 그에 따른 REC 공급의무이다. 만약 민간 석탄 발전소들이 REC 공급의무를 불이행하게 된다면, 막대한 과징금이 부과되기 때문에 이들의 전력생산 비용함수는 이를 반영하여 수정되어야 한다. 더 나아가 REC 공급의무는 발전량에 따라 결정되기 때문에, 민간 발전사업자가 자신의 REC 공급의무 이행능력이 부족하다고 판단할 경우 자체적으로 발전량을 감축하여 과징금을 낮추는 전략을 선택할 수 있다. 본 논문에서는 RPS 제도 도입에 따른 민간 석탄 발전소의 비용함수 변화와 이윤(수익) 극대화를 위하여 발전량을 감소시키는 메커니즘을 분석하였다.

• 한국수소및신에너지학회논문집
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• 제29권5호
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• pp.503-511
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• 2018

There have been many studies of combustion in the circulating fluidized bed. However, little study is available for combustion of wood pellet together fed with wood chip. The mixed ratio of two fuels is an useful information when thermal power company would receive the Renewable Energy Portfolio Standard (RPS) from government. In this study, the combustion behavior and kinetics of such biomass fuels are evaluated using fluidized bed reactor and thermogravimetric analyzers. The mixing ratio of wood chip relative to wood pellet was varied at different temperatures. The results show that a combustion reactivity changed significantly at the wood chip mixing ratio of 40%, particularly at low temperature condition.