• Title/Summary/Keyword: Solar Adoption

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Spatial Decision Support System for Residential Solar Energy Adoption

  • Ahmed O. Alzahrani;Hind Bitar;Abdulrahman Alzahrani;Khalaf O. Alsalem
    • International Journal of Computer Science & Network Security
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    • v.23 no.6
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    • pp.49-58
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    • 2023
  • Renewable energy is not a new terminology. One of the fastest growing renewable energies is solar energy. The implementation of solar energy provides several advantages including the reduction of some of the environmental risks of fossil fuel consumption. This research elaborated the importance of the adaption of solar energy by developing a spatial decision support system (SDSS), while the Residential Solar Energy Adoption (RSEA) is an instantiation artifact in the form of an SDSS. As a GIS web-based application, RSEA allows stakeholders (e.g., utility companies, policymakers, service providers homeowners, and researchers) to navigate through locations on a map interactively. The maps highlight locations with high and low solar energy adoption potential that enables decision-makers (e.g., policymakers, solar firms, utility companies, and nonprofit organizations) to make decisions. A combined qualitative and quantitative methodological approach was used to evaluate the application's usability and user experience, and results affirmed the ability of the factors of utility, usefulness, and a positive user experience of the residential solar energy adoption of spatial decision support system (RSEA-SDSS). RSEA-SDSS in improving the decision-making process for potential various stakeholders, in utility, solar installations, policy making, and non-profit renewable energy domains.

Challenges of decarbonizing electricity in Indonesia: Barriers in the adoption of solar PV

  • Pradityo Sukarso, Adimas
    • Bulletin of the Korea Photovoltaic Society
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    • v.4 no.3
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    • pp.27-35
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    • 2018
  • Around the world, there are increasing efforts underway to decarbonize the electricity generation system to mitigate the environmental impacts including climate change. While Indonesia has a huge potential for new and renewable energy, particularly solar photovoltaic, Indonesia has been largely dependent on fossil fuels. As of 2017, the installed capacity for solar photovoltaic in Indonesia was 78.5MW and this was only 0.04% of the theoretical solar potential, which is around 207.9GW($4.8kWh/m^2/day$). With the case of solar photovoltaic, this paper examined the reasons of low adoption of the technology and the challenges of energy transition in Indonesia from the policy and institutional perspectives.

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THE CHANGE OF THE CALENDAR AND TIMEKEEPING SYSTEM AROUND ADOPTION OF THE SOLAR CALENDAR IN KOREA (태양력 시행 전후 한국의 역법과 시각제도 변화)

  • CHOI, GO-EUN;MIHN, BYEONG-HEE;AHN, YOUNG SOOK
    • Publications of The Korean Astronomical Society
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    • v.34 no.3
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    • pp.49-65
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    • 2019
  • We investigate the provenance and the changes in the timekeeping system focusing on official records such as almanacs and textbooks published by the government after the solar calendar was introduced. We found that the solar calendar and the 12-hour clock time first appeared in 1884 during Joseon dynasty, at that time the solar calendar was used at the open port in Busan to facilitate the exchanges with Japan. The 12-hour clock time first appeared in the 『Hansung Sunbo』 published by the government in 1884. We also found that the Joseon dynasty also used 12 diǎnzhōng or 12 diǎn. In addition, the term of the 'Sigan' first appeared in the first official academic textbook in August 1895, and the chapter related to time contained the information about 12-hour clock time instead of the 12 Shi. In 1908, the meaning of the solar time, the equation of time, and the differences in longitude with the adoption of Korean Standard Time were introduced. Meanwhile, the 24-hour clock time was first introduced in Joseon and applied to railway times in 1907. The 1946 almanac, the first issue after liberation, used the 12-hour clock time which uses 'Sango', 'Hao' and the 24-hour clock time started to be used from the following year and is still used to this day. Finally, the 12-hour clock time, which was introduced around 1884, was enacted as Article 44 of the law in 1900 and was revised again in 1905 and 1908. In Korea, the terms related to the time in the current astronomical calendar system were newly defined around 1884, 1896, and 1908, and gradually standardized through the establishment of laws.

Study on Economic Analysis of Offshore and Ground-mounted Solar Photovoltaics (해상과 지상 태양광 발전 경제성 비교에 관한 연구)

  • Kyu-Won Hwang;Moon Suk Lee;Chul-Yong Lee
    • New & Renewable Energy
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    • v.20 no.1
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    • pp.38-51
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    • 2024
  • The rapid expansion of industrialization and population growth worldwide has led to a significant surge in energy demand, perpetuating heavy reliance on finite fossil fuel reserves. Although prevailing policies primarily target ground-mounted solar photovoltaics, there is a noticeable increase in the adoption of floating solar power generation systems on water surfaces. Nonetheless, adequate studies and legislative reviews on offshore solar photovoltaics in Korea are lacking. The absence of well-defined criteria for the economic analysis of floating solar photovoltaics presents hurdles to their economic feasibility. This study conducted a comprehensive cost-benefit analysis of offshore photovoltaics to evaluate their economic viability and compared four types of solar photovoltaics based on the operating area and technology: ground-mounted, floating on inland water, pontoon-based offshore, and flexible system offshore. Perspectives from both central and local government entities, emphasizing social aspects, as well as inputs from private companies with a financial focus were considered. The findings revealed variations in economic viability depending on the operating area and technology employed. This study aims to contribute to the advancement of market maturity and technology within the realm of offshore solar photovoltaics.

The highest spot selection of the domestic for MW class PV system which uses Solar pro adoption (Solar Pro를 이용한 국내 MW규모 태양광발전 최적지 선정)

  • Hwang, Jung-Hee;Ahn, Kyo-Sang;Lim, Hee-Cheon
    • 한국신재생에너지학회:학술대회논문집
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    • 2007.06a
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    • pp.292-294
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    • 2007
  • 본 논문에서는 MW급 집중배치형 태양광 발전시스템 설치 전 기상청 기상대 기후자료를 Solar Pro 시뮬레이터에 적용하여 최적의 발전 Site를 선정하는 방법을 소개하고, 그 결과를 보여준다. 국내 지역별로 일사량 및 지역 기후 특성에 따라 태양광 발전의 발전량이 차이가 남에 따라 태양광발전 사업 전 반드시 거쳐야 할 단계이다. 이를 토대로 MW급 태양광 발전시스템 설치 시 각 지역별 경제성 차이도 알아 볼 수 있다.

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Ternary Blend Organic Solar Cells Trends based on PM6:Y6 (PM6:Y6를 기반으로 한 삼중 혼합 유기 태양전지 동향)

  • Dong Hwan Yun;Gwang Yong Shin;Yun Hye Jung;YeongWoo Ha;Gi-Hwan Kim
    • Current Photovoltaic Research
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    • v.11 no.3
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    • pp.79-86
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    • 2023
  • As we strive to mitigate the environmental impact caused by the use of fossil fuels, the exploration of alternative energy sources has gained significant attention. Solar energy, in particular, has emerged as a promising solution due to its eco-friendly nature and virtually limitless availability. Among the various types of solar cells that harness this abundant energy source, organic solar cells have garnered considerable interest. Organic solar cells feature a photo-active layer composed of organic semiconductors, offering a range of appealing advantages such as cost-effectiveness, flexibility, translucency, and the ability to produce customizable colors. However, the commercialization of organic solar cells has been impeded by certain challenges, notably their relatively low efficiency and stability. To overcome these obstacles and pave the way for wider adoption, researchers have been exploring innovative approaches, including the implementation of ternary blend organic solar cells. This strategy involves introducing a third component into the photo-active layer alongside the organic semiconductors, with the aim of enhancing the overall performance of the solar cell. In this paper, we delve into the issues associated with organic solar cells and focus on one potential solution: ternary blend organic solar cells. Specifically, we examine the application of this approach to PM6:Y6, which stands as one of the most popular combinations of organic semiconductors. By investigating the potential of ternary blends, particularly utilizing PM6:Y6, we aim to accelerate the commercialization of organic solar cells.

Setback Regulation in Solar Photovoltaic Deployment: A Comparative Analysis Involving International Cases for Policy Insights (국내 태양광 이격거리 규제 현황과 해외사례 비교를 통한 정책적 시사점)

  • Yenjae Chang
    • New & Renewable Energy
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    • v.20 no.1
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    • pp.2-14
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    • 2024
  • Setback regulations stand out as a primary hindrance to the widespread adoption of renewable energy in South Korea. This study analyzed the current status of domestic and international setback regulations, laying the groundwork for an in-depth discussion aimed at improving regulations related to solar photovoltaic setback distances. While setback regulations lack universal standardization across nations, regulations in the United States exhibit certain similarities to those implemented in South Korea. Notably, South Korea has seen a gradual tightening of regulations from 2018 to the present, implementing standards approximately 5 to 10 times stricter than those in the United States.

Hybrid High-efficiency Synchronous Converter using Si IGBT and SiC MOSFET

  • Il Yang;Woo-Joon Kim;Tuan-Vu Le;Seong-Mi Park;Sung-Jun Park;Ancheng Liu
    • Journal of the Korean Society of Industry Convergence
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    • v.26 no.6_1
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    • pp.967-976
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    • 2023
  • Currently, with the thriving development in the field of solar energy, the widespread adoption of solar grid-connected power conversion systems is rapidly expanding. As the market continues to grow, the efficiency of solar power conversion systems is steadily increasing, while prices are rapidly decreasing. Photovoltaic panels often produce low output voltages, and Boost converters are commonly employed to elevate and stabilize these voltages. They are also utilized for implementing Maximum Power Point Tracking (MPPT), ensuring the full utilization of solar power generation. Recently, synchronous control techniques have been introduced, using controllable switching devices like Si IGBT or SiC MOSFET to replace the diodes in the original circuits. However, this has raised concerns related to costs. This paper offers a compromise solution, considering both the performance and economic factors of the converter. It proposes a hybrid high-efficiency synchronous converter structure that combines Si IGBT and SiC MOSFET. Additionally, the proposed topology has been practically implemented and tested, with results confirming its feasibility and cost-effectiveness.

Comparing Solar Heat Shading Performances of Internal Blinds in the Summer (내측 블라인드의 하절기 일사열 차폐 성능 비교)

  • Park, Eun-Mi;Choi, Dong-Ho;Park, Min-Yong;Lee, Kyung-Hee
    • Journal of the Korean Solar Energy Society
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    • v.34 no.6
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    • pp.75-83
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    • 2014
  • Heat loss through windows and doors occupies 20 to 45% of the total heat loss in building. It accounts for a large proportion of the total heat loss in building. In order to suppress the amount of heat flow through the windows and doors were considered actions such as reinforcement of insulation performance of window, adoption of low-e glass, and installation of solar heat shading device. The Purpose of this study is to compare solar heat shading performances of 3 types of internal blinds in the summer. In order to verify the solar heat shading performances of the blinds, a roll blind, blind A(Venetian blind) and blind B(Daylight guiding venetian blind)were installed in the four rooms with the same environmental conditions. As a result of the experiment, the blind B, blind A, roll blind showed an excellent performance in that order. Its because the blind B is made of aluminum materials coated with special paints on surface. It doesn't converted to long wave by short wave light. and it is reflected to short wave to outside.

Analysis of the Thermal Environment and Natural Ventilation for the Energy Performance Evaluation of the Double Skin System during the Summer (이중외피 시스템의 에너지성능평가를 위한 하절기 열환경 및 자연환기 분석)

  • Eom, Jung-Won;Cho, Soo;Huh, Jung-Ho
    • Journal of the Korean Solar Energy Society
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    • v.22 no.4
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    • pp.68-76
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    • 2002
  • This paper discusses thermal and ventilation performance which might be caused by the adoption of one of specific building facade techniques, Double Skin System(DSS). One building with a prototypical DSS was selected and systematically investigated through field monitoring and computer simulation techniques. A network model of ventilation was successfully made using COMIS to evaluate ventilation performance of the system which can hardly be done by field measurements. Various operating conditions of air conditioning on/off and window opening were implemented in this type of building. Through the appropriate operation of the DSS in summer, simulation-based and experimental results implicate that it can lead to cooling energy savings.