• Current Photovoltaic Research
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• 제11권4호
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• pp.134-143
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• 2023

Efforts are being made to respond to global warming. Interest in and demand for the private sector-led RE100 campaign is also increasing. Self-built solar power generation, one of the implementation tools for RE100, is not expanding. However, it can be an economical means of implementation in the long run. In this study, we intend to analyze the impact on the optimal ratio of self-solar power generation using HOMER simulation. OPR defines the optimal solar power generation ratio and looks into what changes there are in the optimal solar power ratio when self-power consumption increases and external power purchase price changes. As a result, the optimal rate of self-solar power generation has a low impact even if self-power consumption increases. As the external power unit price increases, the optimal ratio increases, and at a power unit price of 100 KRW/kWh, OPR is 24%; at 200 KRW/kWh OPR is 31%; and at 300 KRW/kWh OPR is 34%. This shows that the electricity price replaced during the life cycle has a high impact on the economic feasibility of solar power generation. However, when the external power unit price reached a certain level, the increase in OPR decreased. This shows that it is difficult for domestic companies to achieve RE100 based on the economic feasibility of solar energy alone. Therefore, efforts are needed to supply renewable energy in the public sector.

• 신재생에너지
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• 제3권1호
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• pp.5-12
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• 2007

국내 태양광 분야는 2003년에 발표된 제 2차 신생에너지기술개발 및 보급촉진 방안에 따라 급속하게 팽창하고 있다. 보급 측면에서는 2004년부터 매년 2-3배 이상 성장하여 2006년에는 20 MWp 이상의 국내 시장이 형성된 것으로 추산되어 초기시장 형성이 성공적으로 진행되고 있는 것으로 보인다. 기술개발 측면에서는 선진 기술의 국산화 및 미래 전략형 기술 확보를 위한 과제가 추진되고 있다. 이에 따라 국내 태양광 산업의 수직구조가 가시화 되고 있으며 각 부품별 양산체제가 갖추어져 가고 있다. 빠르게 성장하고 있는 한국의 태양광 분야의 미래방향 설정과 함께 급변하는 세계 태양광 분야의 환경을 반영하는 전략 확보를 위해 한국의 태양광비전 2030을 수립할 필요성이 제기되고 있다. 본 논문은 일본, 유럽, 미국의 태양광 2030 비전을 요약 분석하여 이로부터 한국의 태양광 비전 설정을 위한 시사점을 얻고자 하였다.

• 무역학회지
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• 제41권2호
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• pp.185-202
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• 2016

온실가스 감축 의무와 방사능 유출 우려 등으로 각국의 신·재생에너지에 대한 관심이 높아지고 있다. 그 중에서도 태양광은 가장 현실적인 에너지로 주목받고 있으며, 세계 시장의 수요가 증가함에 따라 한국 태양광 산업의 해외진출 및 무역요인에 관한 체계적 분석이 필요하다. 본 연구에서는 한국과 태양광 제품을 거래하는 11개국을 대상으로 1990년부터 2014년까지 총 25년간의 패널데이터를 연구하여 보았다. 중력모형을 중심으로 분석을 시행하였으며, 분석결과 한국의 태양광 제품은 일반적으로 중력모형과 일치하는 것으로 나타났다. 그러나 경제규모와 거리 이외의 요인에서는 각각 다른 결과가 도출되었다.

• 신재생에너지
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• 제20권1호
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• pp.61-69
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• 2024

This study investigates the barriers to the deployment of solar thermal and ground source heat pump (GSHP) from the perspective of consumers and businesses, as well as evaluates priorities for improving the barriers via expert AHP evaluation. From a consumer's perspective, the overall satisfaction with solar thermal is significantly lower than that with PV and needs to be improved at the installation and use stages. GSHP needs to be improved at the prior-information search stage. From a business perspective, the non-distinction between heat and electricity in mandatory installations in public buildings, the difficulty in assessing the value of heat, and high initial costs impede the deployment. Based on the result of AHP analysis, the priorities for improving the barriers to the wide utilization of solar thermal are evaluated in the order of economic feasibility, policy, acceptability, and technology, where high installation cost is shown to be the greatest barrier. Barriers for GSHP are evaluated in the order of policy, acceptability, economic feasibility, and technology, where policy means improvement is evaluated as the most important factor in promoting the deployment of GSHP.

• 한국태양에너지학회 논문집
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• 제38권2호
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• pp.45-53
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• 2018

For the preliminary step for estimating the performance of roof-type photovoltaic system in urban areas, we analyzed the solar radiation reduction ratio by shadow effect by buildings using DSM (Digital Surface Model) and GIS (Geographical Information System) tools. An average loss by the shadow is about 19% in Seoul. The result was related to the building density and distribution. Monthly results show that the winter season (December and January) was more affected by the shading than during the summer season (June and July). It is expected that useful empirical formulas can be made if more detailed correlation studies are performed.

• 디지털융복합연구
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• 제19권9호
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• pp.189-199
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• 2021

국내 제로에너지건축물 의무화를 대응하기 위해서 신재생에너지 자립률을 높이려면 고층 건물일수록 대지면적에 한계가 있고 옥상에 PV모듈을 설치하는 것만으로는 부족하다. 따라서 제로에너지건축물을 실현할 수 있는 핵심 에너지원으로 BIPV(Building Integrated PhotoVoltaic, 이하 BIPV)는 가장 주목받는 산업이다. 이에 본 연구는 BIPV 산업의 올바른 방향 제시와 활성화룰 위해 설계자, 시공자, 제품 제조자, 유지관리자 등 경력 10년 이상 전문가를 대상으로 BIPV 산업의 문제점을 자율 토론 방식으로 설문 조사를 시행하였다. BIPV 적용의 산업적 문제점으로는 제품 인증을 위한 표준 및 인증기준의 범위 확대, 다품종 소량 생산의 현황을 고려한 인증범위 개선, 컬러 모듈과 루버 모듈 및 지붕형 제품을 수용할 수 있는 표준 개정 필요성, 인증제품 의무화를 통한 외산 모듈의 국내 유입 차단의 필요성, BIPV 제품 정보 획득의 어려움, BIPV의 건축 적용 부위 등에 대한 정확한 가이드라인으로 참여자간의 혼란 야기 방지 필요, BIPV 정의의 명확한 정립과 지원 정책이나 제도가 부족하다는 문제들을 도출하였다. 이에 본 연구는 산업계에서 바라보는 시장 변화와 영향을 주고 있는 요소, 경쟁력 강화를 위한 필요한 개선 사항을 바탕으로 대응 방안과 방향성을 제시하고 제안하는데 그 목적이 있다.

• The Journal of Asian Finance, Economics and Business
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• 제7권1호
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• pp.111-121
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• 2020

The study measures the resource use efficiency of diesel based power generation in the Maldives and analyses factors which influence efficiency levels. Stochastic frontier analysis (SFA) technique is applied to data on 30 plants over two year period from 2016 to 2017. The study finds that technical efficiency scores varies from 0.44 to 0.98 across power plants. About 33 percent of the plants have scores below the mean technical efficiency score of 0.87. Empirical results indicate ownership and use of solar photovoltaic (PV) have an influence on improving efficiency levels. Privately owned power plants in resort islands obtained higher technical efficiency scores compared to public and community owned power plants. This is a significant finding as the first study that used power plants in tourist sector in a comparative study. Size of the power plants was not found significant, but relatively small installed capacities can also be efficient. This finding is important because in many inhabited islands installed capacities remain oversized compared to the load. The benchmarking exercise offers model power plants that are relatively efficient, for other power plants and policy makers in small islands to learn from.

• 신재생에너지
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• 제8권1호
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• pp.8-17
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• 2012

The Korean government pushed ahead various policies to disseminate photovoltaic (PV), wind power, small hydro, bio-fuel, etc. Renewable energy system (RES) budget of the Korean government increased from 118 billion won of 2003 to 876.6 billion won of 2010. The R&D budgetary supports for RES increased by 6.8 times in the period 2003-2010. It is necessary to confirm RES budget expenditure that renewable energy promotion policy makes good performance evaluated in quantity level. This paper made Input-Output Table 2009 contains photovoltaic power generation equipment industry as a dependent sector and analyzed induced production effect by demand of photovoltaic power generation equipment industry. From the empirical analysis result, additional demand in photovoltaic power generation equipment induced 1.932 times of induced production in Korea. Each of industry sector has positive induced production from the additional demand in photovoltaic power generation equipment. Renewable energy promotion in photovoltaic power generation is considered together with industry policy as the option to sustain economic growth.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2011년도 춘계학술대회 초록집
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• pp.139.2-139.2
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• 2011

Compared with a traditional power system of electricity providers, distributed power systems consist of power suppliers which are small and demand-oriented. Each small power supplier tends to utilizes renewable energy sources such as solar and wind power. It is because that home renewable energy systems do not need a large scale infrastructure which is required for traditional power plants. In this work we study an economic feasibility of such a renewable energy source. We describe how renewable power generation works and what it brings in terms of economic benefits. Also, we analyze limitations by the current policy and their possible solutions.

• 한국전기전자재료학회논문지
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• 제27권1호
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• pp.1-7
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• 2014

The current downturn of BIPV sector has an enormous potential to rebound and expand into the PV sector for construction market in the foreseeable future. Solar technology has already gained a significant market due to lack of natural resources in the Korean domestic market. Given the technical infrastructure of state-of-the-art fusion technology, the competitiveness of software-driven BIPV market in the world can be ver attractive and have the potential to develop as a key national technology. To do this, from the viewpoint of complexity, technical R&D, national political aspect, social aspect, economic aspect and institutional support systems need to be parallelly formulated. A dedicated BIPV sector has not yet been established, especially policy and institutional framework have very crucial impact on the establishment of BIPV sector.