• 한국신재생에너지학회:학술대회논문집
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• 2007.06a
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• pp.269-275
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• 2007

태양광 분야에서 일본은 기술 및 보급에 성공한 대표적인 사례로서 거론된다. 태양광의 에너지자원화를 목표로 30여 년간 지속적으로 국가차원의 기술개발 및 보급을 정책 사업화하여 진행시켰고 성공적인 선행 단계를 밟아 왔다. 현재까지의 성공을 기반으로 [태양광 비전 2030]을 수립하여 실현가능한 장기 목표를 구체화하는 단계에 있다. 이에 일본 태양광 산업 및 기술개발 방향에 대한 분석을 통해 오늘 우리에게 주는 시사점을 도출하여 차세대 성장 동력 산업이 될 국내 태양광분야의 발전을 위한 지표로 삼고자 한다.

• Proceedings of the KIPE Conference
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• 2012.07a
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• pp.329-330
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• 2012

The rising popularity of renewable energy sources resulted in development of the units of higher rated powers, where the large-scale plants and grid-connected type solar power systems are increased. Therefore, the importance of grid stabilization, which depends on each country or system-type, has been strengthened by different grid-codes or certifications. In this paper, the control scheme of three-phase photovoltaic system is enhanced, where both injected active and reactive powers are simultaneously controlled with the consideration of the certification of the Germany Association of Energy and Water Industries (BDEW). Experimental results are shown to verify the theoretical analysis.

• 한국신재생에너지학회:학술대회논문집
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• 2009.11a
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• pp.258-261
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• 2009

신재생에너지는 세계적으로 투자급증, 관련기업의 가치상승, 경제성 상승등으로 인해 중요성이 강조되고 있다. 본 연구에서는 미래 먹거리산업 창출에 있어 중요한 신재생에너지 분야 정부지원 연구개발과제(2007~2008)의 투자현황 및 성과를 분석하였다. 연료전지 및 태양광 분야의 투자비중은 신재생에너지 분야 총 투자의 50.7%를 차지하였으며, 지경부는 총 투자의 73.5%를 차지하였다. 수소, 연료전지, 태양광, 해양 분야를 제외한 모든 에너지원에서 지경부의 투자비중이 절대적인 것으로 나타났다. 에너지원별 투자순위가 높은 세부기술을 살펴보면, 수소 분야는 수소제조, 연료전지 분야는 PEMFC, 태양광은 결정질 실리콘, 풍력은 발전시스템으로 나타났다. 연구성과를 살펴보면, 특허건수는 국내 R&D 분야 총 성과의 2.18%에 해당되었으며, 매출액은 0.08% 수준이었다.

• 한국신재생에너지학회:학술대회논문집
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• 2008.10a
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• pp.164-164
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• 2008

• New & Renewable Energy
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• v.2 no.1 s.5
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• pp.14-20
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• 2006

본고에서는 고유가에 대한 대응 효과가 높아 주목을 받고 있는 바이오에너지 기술의 개발 현황 및 전망에 대해 기술하였다. 바이오에너지는 열 또는 전기를 생산하는 여타의 신재생에너지원과는 달리 에너지의 장기 저장이 가능한 연료의 형태로 생산 가능하다는 장점이 있다. 바이오에너지 생산에 사용되는 원료인 바이오매스에는 유기성 폐기물, 농임산 부산물과 에너지 작물 등이 있으며 이들로부터 에너지를 생산하는데 적용되는 기술도 열화학적 기술과 생물학적 전환 기술이 있다. 적용된 기술에 따라 생산된 바이오에너지는 열, 전기뿐만 아니라 수송용 대체연료 등의 형태로 활용된다. 이러한 바이오에너지기술 중 일부는 상용화 되어 실제 보급 중에 있으며 다른 기술들은 보다 미래 기술로 개발 중에 있다. 국내외에서 상용되었거나 개발 중인 주요 바이오에너지 기술의 R&D 현황 및 전망에 대해 요약하였다.

• New & Renewable Energy
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• v.19 no.1
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• pp.41-52
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• 2023

Various carbon upcycling technologies have been proposed and are under development to achieve Korea's carbon neutrality target. Many chemical reactions are under development through various chemical reaction pathways, and different technological maturity levels are shown for each country and company. In this situation, it is essential to establish investment decisions such as research funds and human resources allocation through technological and economic analysis for close commercialization technologies and basic technologies with low technology readiness levels (TRL). Therefore, in this study, the technology development priority for developing carbon upcycling items was selected according to the domestic Carbon Capture & Utilization (CCU) technology roadmap using the stakeholder selection tool released by EU CarbonNext. As a result of the analysis, the TRL level of Korea's major carbon upcycling technologies was analyzed to be lower than that of other carbon resource technologies, and it was considered desirable to invest in mineral carbonization technologies among various candidate technologies.

• Transactions of the Korean hydrogen and new energy society
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• v.31 no.6
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• pp.630-636
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• 2020

This paper presents a experimental study on the performance of the heat pump. Uncertainty of measurement means the degree of uncertainty in the measurement. Therefore, it estimates a section where expected value of the measurement might be within a certain confidence level and suggests a range where measured representative value might be incorrect. Uncertainty of measurement is a parameter that shows characteristics of dispersion of measured value that was reasonably estimated from measured quantity. Measurement result of performance experiment is not a true value but estimated value that was estimated reasonably. Therefore, uncertainty of measurement needs to be calculated and presented with the result of measurement.

• 한국신재생에너지학회:학술대회논문집
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• 2008.10a
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• pp.166-166
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• 2008

• Ocean Systems Engineering
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• v.13 no.1
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• pp.21-41
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• 2023

Decarbonization and energy transition can be considered as a main concern even for the oil industry. One of the initiatives to reduce emissions under studies considers the use of renewable energy as a complimentary supply of electric energy of the production platforms. Wind energy has a higher TRL (Technology Readiness Level) than other types of energy converters and has been considered in these studies. However, other types of renewable energy have potential to be used and hybrid concepts considering wind platforms can help to push the technological development of other types of energy converters and improve their efficiency. In this article, a preliminary hydrodynamic assessment of a new concept of hybrid wind and wave energy conversion platform was performed, in order to evaluate the potential of wave power extraction. A multiple OWCs (Oscillating Water Column) WEC (Wave Energy Converter) design was adopted for the analysis and some simplifications were adopted to permit using a frequency domain approach to evaluate the mean wave power estimation for the location. Other strategies were used in the OWC design to create resonance in the sea energy range to try to maximize the potential power to be extracted, with good results.

• New & Renewable Energy
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• v.8 no.1
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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.