• 제목/요약/키워드: New.renewable energy

검색결과 4,052건 처리시간 0.048초

신.재생에너지 융합을 통한 첨단 유리온실의 경제성 분석 -지열과 태양광 융합을 중심으로- (Economic Analysis of High-tech Glass Greenhouse through the Convergence of New Renewable Energy -Focusing on the Convergence of Geothermal and Solar Power-)

  • 정종화;윤성이
    • 한국유기농업학회지
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    • 제22권4호
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    • pp.593-610
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    • 2014
  • The whole world concentrates on the reduction of greenhouse gas to effectively cope with policy toward global climate change. To effectively react to climate change, even the agricultural sector requires construction of new farming systems that utilizes new and renewable energy because of rising oil prices and regulations for greenhouse gas emissions. For this reason, we need to fuse the new and renewable energy with the horticulture sector of which the light and heat energy cost accounts for great part, moreover, efforts and researches should me done which can increase income of farmers through reducing carbon dioxide and energy cost in agricultural production expenses. Therefore, this study analyzes economic feasibility and applicability of fusing geothermal heat pump and solar power facilities with high-tech glass greenhouse. As a result, it is concluded that there surely are an applicability and economic feasibility if we apply new development system that can be an alternative for problems of securing premises of existing geothermal heat pump and the RPS system as a power generation company in case of solar power. Therefore, using this analysis data, if new empirical studies fusing and implementing agriculture sector with new and renewable energy fields proliferate and be applied to actual rural and agricultural field, it will increase actual income and will become a new advanced agricultural system that effectively deals with world-wide environmental problems.

신.재생에너지 활성화를 위한 제도의 설계와 남북한 신.재생에너지 협력 추진방안 - 전문가 설문에 나타난 신.재생에너지 현황 - (System Design for Activation of Renewable Energy and Cooperative Renewable Energy Plan Between South and North Korea -Based on the Survey of Renewable Energy Experts-)

  • 임소영;허은녕
    • 신재생에너지
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    • 제1권3호
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    • pp.24-34
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    • 2005
  • Ministry of Commerce, Industry [MOCIE] has taken it into consideration to introduce a Renewable Portfolio Standard (RPS) that is a purchase obligation program as an alternative plan to the FIT. We conducted a survey of renewable energy companies and experts to ask their opinions about renewable energy policy, the introduction of the RPS, and the scheme for aid of North Korea with renewable energy. Korean renewable energy companies show an impartial opinion about a FIT and a RPS system overall, although they tend to have distinctive opinions by technology each other. With respect to eligible resources for a RPS, the industries want to extend the scope of it as broad as possible. In addition, experts prefer the multi-tiered and energy production based RPS to the sing1e-tiered and installed capacity based RPS. We also conducted a surrey to find the best renewable energy sources. Wind, Geothermal, Solar-thermal, and Photovoltaic were selected to have the best potential capacities to support North Korea by renewable energy experts. However, these energy resources also have several problems to overcome in the aid of North Korea, and thus, the plans for solving them and for giving efficient support to North Korea in the area of Renewable Energy are discussed.

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신재생에너지 평가시스템 구축 (A Study on the R&D Evaluation system of New & Renewable Energy)

  • 김유정
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2005년도 춘계학술대회
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    • pp.656-659
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    • 2005
  • his paper develops the systematic and quantitative priority-determining method for national investment using the framework of evaluating R&D. This study proposes multi criteria for evaluating the R&D of New & Renewable Energy through analysing the attribute of 11 types of energy. The framework is constituted by 4 criteria, the political urgency, economic impact, regional constraint. and technological attribute and the each criteria has 3 or 4 sub-criteria. These sub-criteria are weighted using AHP.

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신.재생에너지원 발전전력 차액지원을 위한 현행 기준가격의 재산정 (Reappraisal of Feed-In Tariffs of Electricity Generating from New and Renewable Energy Sources)

  • 김은일;김건훈
    • 한국태양에너지학회:학술대회논문집
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    • 한국태양에너지학회 2008년도 춘계학술발표대회 논문집
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    • pp.281-286
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    • 2008
  • Current feed-in tariffs(FIT) of Electricity generating from new and renewable energy sources are reappraised with the corrected formula of levelized generation cost(LGC) of utility power. The LGC of new and renewable electricity should be formulated in explicitly reflecting the capital cost and corporate tax during the economic life cycle based on its realistic application data. An applicable term of the FITs should, especially, be equal to the economic life cycle. The revised FITs issued in 2006 were, however, derived from the incorrect formula described in the study of KERI(Korea Electrotechnology Research Institute), and consequently misestimated. The reappraisal values for FIT of new and renewable electricity were shown and interpreted in this paper. An FIT of PV more than 30 kW, for example, should be 972.86 won/kWh instead of current 677.38 won/kWh increasing 43.6%. An upward revision of other FITs for new and renewable electricities should also be required in the range of 8.6% to 47.3%.

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신재생에너지 의무할당제의 국내산업에 대한 파급효과 (Economic Impacts of Renewable Portfolio Standard on Domestic Industry)

  • 김현제;조경엽
    • 자원ㆍ환경경제연구
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    • 제19권4호
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    • pp.805-828
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    • 2010
  • 미국과 일부 EU 국가처럼 국내에서도 신재생에너지 보급 확산을 위해 시장기능을 강화하는 제도로서 신재생에너지 의무할당제(RPS)를 2012년 이후 도입할 예정이다. RPS의 도입을 통해 에너지 사업자에게 일정비율의 신재생에너지 공급을 의무화함으로써 신재생에너지 보급 확대에 기여한다는 것이다. 본 논문은 신재생에너지 의무할당제도의 도입에 따른 경제적 파급효과를 일반연산균형모형(CGE)을 이용한 정량적 분석을 통해 살펴보았다. 불완전 경쟁시장 가정 하에 내생적 성장모형(endogenous growth theory)에 기초한 CGE 모형을 이용하여 분석한 결과를 요약하면 다음과 같다. RPS 제도는 물량을 규제하기 때문에 목표량을 오차 없이 달성할 수 있다는 장점을 지니고 있다. 신재생에너지의 목표량이 정확히 달성됨에 따라 보다 큰 기술 확산 효과를 기대할 수 있다. 그러나 의무적으로 신재생에너지를 공급함에 따라 투자비용이 상승하여 중단기적으로 GDP가 감소할 가능성이 존재한다. 결국 장기적인 관점에서 신재생에너지의 보급을 확대하고 경제성장을 견인하는 신성장 동력으로 활용하고자 한다면 RPS 제도를 도입하는 것이 바람직하다.

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신재생에너지 자원의 활용을 위한 WebGIS 기반의 자원지도 시스템 개발 (A Development of Resource Map System based on WebGIS for Utilization of New and Renewable Energy Resource)

  • 김상엽;윤창열;조덕기;김현구;강용혁
    • 한국정보처리학회:학술대회논문집
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    • 한국정보처리학회 2013년도 춘계학술발표대회
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    • pp.1044-1045
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    • 2013
  • 신재생에너지자원 사용의 확대와 더불어 그 안전성에도 관심이 고조되고 있다. 이에 따라 신재생에너지의 개발과 보급을 위한 데이터를 축적하고 관리, 활용할 수 있는 체계가 필요하다. 본 연구에서는 신재생에너지자원을 보다 효율적으로 활용하기 위한 WebGIS 기반의 시스템을 개발한다. 공간 데이터의 관리, 공간정보 서비스 인프라를 구축하기 위해서 기 구축된 시스템에 OGC의 표준을 적용하고, 평가를 위한 공간정보를 연계하여 신재생에너지자원의 개발 및 보급을 위한 경제성평가 모듈의 신뢰성을 향상시켰다. 이를 통해 신재생에너지 자원평가, 최적지 선정 및 잠재량 등에 대한 정밀한 분석 및 평가가 가능하며, Web기반의 시스템 개발을 통해 신재생에너지 정보의 활용성 증대, 신재생에너지에 대한 인식제고를 위한 도구로써 활용될 수 있다.

AHP를 이용한 신재생에너지 보급확산 제도 평가 (An Evaluation on the Regulations for New & Renewable Energy Diffusion Using the AHP)

  • 이덕기;이의준;최상진;박수억;이상설
    • 신재생에너지
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    • 제1권2호
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    • pp.79-90
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    • 2005
  • New & renewable energy technology development has been carrying out in 11 different areas so far. Many technologies are being applied to the required areas according to its own characteristics. Before launching the development, these technologies have been evaluated by their commercial effect and contribution to energy supply. In this paper, the impact factors enhancing the distribution of renewable energy were developed to select appropriate diffusion regulations for each technology area. In addition, AHP methodology was introduced to investigate priorities of the regulations along with weights of impact factors.

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건물에너지사용특성이 신재생에너지시스템 최적화 비율에 미치는 영향분석 (Analysis of Effects of Building Energy Consumption Characteristics on the Optimization Ratio for New and Renewable Energy Systems)

  • 이용호;홍준호;김용경;조영흠;황정하
    • 한국태양에너지학회 논문집
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    • 제34권5호
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    • pp.117-126
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    • 2014
  • This study developed a KRESS program designed to find the optimization ratio for new and renewable energy systems and analyze the effects of building energy consumption characteristics on the ratio. In spite of clear differences in predicted energy consumption and energy consumption by the loads among 18 facilities, the current formula for obligatory supply ratios applies a correction coefficient according to the building purposes based on energy consumption per each unit area in medical facilities and thus reflects no energy consumption characteristics according to the building purposes. The optimization ratio for new and renewable energy systems was the same for all facilities when the correction coefficients by the building purposes and new and renewable energy sources were all applied. When the correction coefficients were not applied, however, the optimization ratio varied according to building energy consumption characteristics. The findings raise a need to test the correction coefficients in order to select new and renewable energy systems that take into account energy consumption characteristics by the building purposes and loads and reflect economy, environmental performance, and technology.

태양에너지 예보기술 동향분석 (Trend Review of Solar Energy Forecasting Technique)

  • 전재호;이정태;김현구;강용혁;윤창열;김창기;김보영;김진영;박유연;김태현;조하나
    • 한국태양에너지학회 논문집
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    • 제39권4호
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    • pp.41-54
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    • 2019
  • The proportion of solar photovoltaic power generation has steadily increased in the power trade market. Solar energy forecast is highly important for the stable trade of volatile solar energy in the existing power trade market, and it is necessary to identify accurately any forecast error according to the forecast lead time. This paper analyzes the latest study trend in solar energy forecast overseas and presents a consistent comparative assessment by adopting a single statistical variable (nRMSE) for forecast errors according to lead time and forecast technology.

신재생에너지 발전(태양광, 풍력, 소수력, 바이오가스)의 경제성 분석 연구 (A study on economic analysis of new renewable energy power(photovoltaic, wind power, small hydro, biogas))

  • 김종민;김기영
    • 한국태양에너지학회 논문집
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    • 제28권6호
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    • pp.70-77
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    • 2008
  • The purpose of this study evaluates a feasibility and economical efficiency of new renewable energy. According as weather change is serious problem now days, every people make attention to the reduction of greenhouse gas. The revitalization of new renewable energy creates the variety of energy source, stability of energy supply and reduction of greenhouse gas. In this study evaluates a feasibility and economical efficiency from new renewable energy of various photo voltaics, wind power, small hydro and biogas. Feasibility does in standard of technical characteristic, politic support, marketability, establishment present condition and development aim. Economical efficiency does in standard of developmental unit cost, utilization factor, equipment life, politic support cost, interest ratio. The results of this study were as follows photo voltaics, wind, small hydropower, biogas in order feasibility is high. Developmental unit cost, utilization factor, equipment life, politic support cost and analyzed the relationship of interest ratio fluctuation and economical efficiency. From all new renewable energy the utilization factor most is important in economical efficiency but necessary utilization factor is difficult because environmental problem.