• 제목/요약/키워드: New and Renewable energy

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Risk Management and Governmental Investment on New & Renewable Energy (Risk Management 관점에서 신재생에너지 투자)

  • Ahn, Eun-Young
    • 한국신재생에너지학회:학술대회논문집
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    • 2006.06a
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    • pp.360-363
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    • 2006
  • Regester & Larkin(2005) suggest the issue and risk lifecycle analysis method in risk management, made up of the potential, emerging, current, crisis, and dormant stages. Investment on New & Renewable Energy is meaningful in effect ive risk management for diminishing or reducing the shock of a energy current, at the potential stage. In this study, we survey the risk of traditional fossil fuel projects and develop the risk analysis model for new & renewable energy projects specially geothermal energy resources and gas-hydrate resources.

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A Comparative Analysis of the Priority and Evaluation Factors of the Renewable Energy Plan Site by Country (국가별 재생에너지 계획입지제도 절차별 우선순위 및 평가요소 비교 분석)

  • Sung-Hoon, Kim;Hwa-Young, Yoon
    • New & Renewable Energy
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    • v.18 no.4
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    • pp.54-63
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    • 2022
  • This study compared and analyzed major policies and operational processes of countries that introduced the Renewable Energy Plan Site, through literature analysis of published governmet data, and previous research results. The procedures of the Renewable Energy Plan Site were classified into planned location designations, selection of power generation business operators, designation of the business' district and development and evaluating the factors derived for each procedure. Four contries were selected to be compared and analyzed, namely: Denmark, Germany, the United Kingdom and Japan. This was based on the criteria used to introduce and operate the Renewable Energy Plan Site, activate renewable energy supply and check the applicability of Korea's policies. It was analyzed that the priority of the planned location for the procedure was different for each country depending on the conditions there.

Assessment of Energy Self-sufficiency Ratio Based on Renewable Market Potentials for Unit of Local Government (기초지방자치단체별 보급 가능한 재생에너지 시장잠재량을 이용한 에너지 자립률 평가)

  • Kim, Jin-Young;Kang, Yong-Heack;Cho, Sangmin;Yun, Changyeol;Kim, Chang Ki;Kim, Ha-Yang;Lee, Seung Moon;Kim, Hyun-Goo
    • Journal of the Korean Solar Energy Society
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    • v.39 no.6
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    • pp.137-151
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    • 2019
  • This study estimated the available renewable market potential based on Levelized Cost Of Electricity and then assessed the renewable derived energy self-sufficiency for the unit of local government in South Korea. To calculate energy self-sufficiency, 1 km gridded market renewable generation and local government scale of final energy consumption data were used based on the market costs and statistics for the recent three years. The results showed that the estimated renewable market potentials were 689 TWh (Install capacity 829 GW, 128 Mtoe), which can cover 120% of power consumption. 55% of municipalities can fully replace the existing energy consumption with renewable energy generation and the surplus generation can compensate for the rest area through electricity trade. However, it was confirmed that, currently, 47% of the local governments do not fully consider all renewable energy sources such as wind, hydro and geothermal in establishing 100% renewable energy. The results of this study suggest that energy planning is decentralized, and this will greatly contribute to the establishment of power planning of local governments and close the information gap between the central government, the local governments, and the public.

Proposal of New Correction Factors for New and Renewable Energy Sources in Public Building (공공건축물에 적용되는 신·재생에너지원의 새로운 보정계수 제안)

  • Kim, Yun-Ho;Park, Yun-Ha;Won, An-Na;Hwang, Jung-Ha
    • Journal of the Korean Solar Energy Society
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    • v.36 no.6
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    • pp.13-24
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    • 2016
  • The government introduced a mandatory installation system of new & renewable energy for public building to meet the target of greenhouse gas reduction and also suggest a correction factor for new renewable energy to expand the installation of various new & renewable energy systems. The introduction of correction factors, however, was followed by the reduction of installation size of new & renewable energy sources. Assuming that it was caused by a correction factor for each new renewable energy source calculated by the initial costs, this study proposed a new correction factor approach based on payback periods to reflect the technology element in the calculation process of correction factors additionally. The application results of new correction factors show that it was possible to do complex calculations including the economic and technological aspects to select a new & renewable energy system and that the installation size was also enlarged.

A Study on the Improvement of New and Renewable Energy Certification Criteria in the Green Building Certification System (녹색건축 인증제도의 신·재생에너지 인증기준 개선에 관한 연구)

  • Lee, Mi-Ryeong;Park, Ji-Hye;Haan, Chan-Hoon;Tae, Choon-Seob
    • Journal of the Korean Solar Energy Society
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    • v.33 no.4
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    • pp.80-88
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    • 2013
  • Deploying new and renewable energy should be encouraged due to scarce of natural resources and to reduce the $CO_2$ emission. Regarding the Green Building Certification System, '2.2.1 new and renewable energy use', and '2.3.1 carbon dioxide emission reductions' are related to new and renewable energy. Applying new and renewable energy can achieve the score in two criteria mentioned above and most of buildings get a perfect score in the green building certification system. So these criteria needs to be revised to have discrimination. In this study, supply rate of new and renewable energy of the buildings that have achieved Green Building Certification by E Green Building Certification Institute was analyzed. The improvement of assessment criteria related to new and renewable energy is proposed and could be applied to the revisions.

An Evaluation of Uncertainty for Reference Standards Solar Radiation Data (참조표준 일사량 데이터에 대한 불확도 평가)

  • Kim, Sang-Yeob;Jo, Dok-Ki;Yun, Chang-Yeol;Kim, Kwang-Deuk
    • Journal of the Korean Solar Energy Society
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    • v.31 no.1
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    • pp.51-58
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    • 2011
  • The energy makes the basic element which improves the quality of life with motive power of industry and life. However, using the fossil fuel resources was restricted through it's abuse and exhaustion, and that cause a global warming resultingly. According to the reason, the world increased the interest that are stability and use of new and renewable energy which is clean energy with environment. Therefore, the property data of new and renewable is needed for developing and supplying the energy. In other words, the data of new and renewable energy becomes the standards for supply and evaluation of new and renewable energy with development of industry and technology. Also, the necessity came to the fore as the reference and standards of new and renewable energy data. Therefore, in this study, we evaluate and collect the solar radiation data as the new and renewable data and process the collected data through the standards for valuation. We evaluate uncertainty with standards which are NREL, WMO, and GUM. Whereby the data becomes reference standards data and gains the credibility. For the reliability data, we correct the measuring instrument with correction period. Using the DQMS and SERI QC, we efficiently manage and evaluate the solar radiation data. As a result, we evaluate uncertainty as 1,120 case about 16 area. we achieve credibility of data from evaluated solar radiation data and provide an accurate information to user. The annual average of horizontal radiation presents between 1,484 and 4,577, then the uncertainty evaluates from 163 to 453. The error of uncertainty presents smaller than the measurement values. So, we judge a credibility of data by expression of reliability quantitatively. In additional, the reference standards data which is possible to approach anywhere will be used for the supporting related industry and policy making.

The Human Capital Accumulation Effect of New and Renewable Energy Human Resource Development Programs (신재생에너지 인력양성의 인적자본 축적 효과)

  • Lee, You-Ah;Kim, Jin-Soo;Heo, Eun-Nyeong
    • New & Renewable Energy
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    • v.5 no.3
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    • pp.49-55
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    • 2009
  • Human resource for the new and renewable energy technology is an important factor in the respect of the sustainable growth and energy security. In this paper, we focused on measuring the economic effect of human resource development on new and renewable energy development programs. The human capital accumulation model developed by Mincer (1974) was modified in terms of the rate of the researchers' investment in human capital. As a result of a empirical case study, the value of human capital was estimated by 102 million Korean won per year worth 18% of the project labor cost. In case of the assumption of 100% participation of researchers, the level of human capital accumulation increased to 914 million Korean won per year. These results imply that the new and renewable energy development programs has been successful, on the concept of learning by doing, in terms of providing the researchers with opportunities to accumulate human capital.

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Survey Research on Satisfaction and Utilization of New & Renewable Energy Resource Map Service (신재생에너지 자원지도 서비스의 만족도 및 활용도 조사연구)

  • Kim, Hyun-Goo;Kang, Yong-Heaok;Yun, Chang-Yeol;Ko, Yuna
    • Journal of Environmental Science International
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    • v.24 no.8
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    • pp.1003-1013
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    • 2015
  • The Ministry of Trade, Industry and Energy is now placing emphasis on the importance of a new and renewable energy resource map service as an essential means of promoting the dissemination and adoption of renewable energy and other related industrial activities. To raise satisfaction with the new and renewable energy resource map service and promote its utilization, a survey was conducted on a sample group with an academic research background, i.e. employees of the Korea Institute of Energy Research (KIER) who have a thorough understanding of the technological concepts behind the new and renewable energy resource map. Statistical analysis of the survey results showed a high level of overall satisfaction with the web service for the new and renewable energy resource map. Therefore, it was concluded that the development of practical contents rather than the enhancement of web service convenience is required. A statistically significant trend was also observed whereby, the longer the professional career of the survey respondents, the greater their perception and utilization of, and satisfaction with, the enhanced service, which indicates that their level of understanding and utilization of technological concepts corresponds to their research experience record. In addition, the results obtained from the questionnaires regarding the evaluation of the utilization value of the resource map service indicated that use of the service was equally high in terms of political, business and academic applications. The results confirmed the need to develop multidimensional resource map contents that can be applied to as many fields as possible, rather than focusing on a specific terrain.

Technology Competitiveness Analysis of New & Renewable Energy in Major Countries (주요국의 신재생에너지 분야 기술경쟁력 분석 연구)

  • Ha, Su-Jin;Choi, Ji-Hyeok;Oh, Sang Jin
    • New & Renewable Energy
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    • v.18 no.3
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    • pp.72-84
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    • 2022
  • As the threat of climate change escalates, 'net-zero' has become a priority for the international community, and the use of new and renewable energy sources is expected to play a significant role in reaching international carbon neutrality. Here, we evaluate technological competitiveness in terms of implementation and technology by analyzing scientific literature and patents in the new and renewable energy fields of five major countries. For the past 10 years (2009-2019), the most active areas of new and renewable energy research and development have been solar power, wind power, waste, and fuel cells. China is the forerunner in implementation, whereas the United States has the most advanced technology. Portfolio analysis revealed that Korea's fuel cell, the United States' bioenergy, China's waste, Japan's solar and fuel cell, and the European Union's wind power have shown to be in Star Field respectively. Technological competitiveness analysis found that Korea is lagging behind other countries in the new and renewable energy sector, and needs to set a new direction for future carbon-neutral research and development, investment, and policy.

Lanthanum Nickelates with a Perovskite Structure as Protective Coatings on Metallic Interconnects for Solid Oxide Fuel Cells

  • Waluyo, Nurhadi S.;Park, Beom-Kyeong;Song, Rak-Hyun;Lee, Seung-Bok;Lim, Tak-Hyoung;Park, Seok-Joo;Lee, Jong-Won
    • Journal of the Korean Ceramic Society
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    • v.52 no.5
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    • pp.344-349
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    • 2015
  • An interconnect is the key component of solid oxide fuel cells that electrically connects unit cells and separates fuel from oxidant in the adjoining cells. To improve their surface stability in high-temperature oxidizing environments, metallic interconnects are usually coated with conductive oxides. In this study, lanthanum nickelates ($LaNiO_3$) with a perovskite structure are synthesized and applied as protective coatings on a metallic interconnect (Crofer 22 APU). The partial substitution of Co, Cu, and Fe for Ni improves electrical conductivity as well as thermal expansion match with the Crofer interconnect. The protective perovskite layers are fabricated on the interconnects by a slurry coating process combined with optimized heat-treatment. The perovskite-coated interconnects show area-specific resistances as low as $16.5-37.5m{\Omega}{\cdot}cm^2$ at $800^{\circ}C$.