• Title/Summary/Keyword: Yeongyang wind farm

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Prediction of Annual Energy Production of Wind Farms in Complex Terrain using MERRA Reanalysis Data (MERRA 재해석 자료를 이용한 복잡지형 내 풍력발전단지 연간에너지발전량 예측)

  • Kim, Jin-Han;Kwon, Il-Han;Park, Ung-Sik;Yoo, Neungsoo;Paek, Insu
    • Journal of the Korean Solar Energy Society
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    • v.34 no.2
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    • pp.82-90
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    • 2014
  • The MERRA reanalysis data provided online by NASA was applied to predict the annual energy productions of two largest wind farms in Korea. The two wind farms, Gangwon wind farm and Yeongyang wind farm, are located on complex terrain. For the prediction, a commercial CFD program, WindSim, was used. The annual energy productions of the two wind farms were obtained for three separate years of MERRA data from June 2007 to May 2012, and the results were compared with the measured values listed in the CDM reports of the two wind farms. As the result, the prediction errors of six comparisons were within 9 percent when the availabilities of the wind farms were assumed to be 100 percent. Although further investigations are necessary, the MERRA reanalysis data seem useful tentatively to predict adjacent wind resources when measurement data are not available.

Changes in insect diversity and composition after construction of an onshore wind farm (육상풍력발전단지 조성에 따른 곤충군집 변화에 관한 연구)

  • Jin Lee;Sung-Soo Kim;Moon-Jeong Jang
    • Korean Journal of Environmental Biology
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    • v.40 no.4
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    • pp.591-603
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    • 2022
  • This study was conducted to identify changes of insect compositions and diversity after construction of an onshore wind farm. We investigated insect fauna and compositions between a grassland deforested by the construction and a forest located at Yeongdeok and Yeongyang, Gyeongsangbuk-do, Korea. Insects were collected using a sweeping net and light trap. A total of 11 orders, 50 families, and 246 species, and 1,076 individuals were collected at study sites. By taxonomic group, Lepidoptera species were the most frequently found with 141 species, 417 individuals (38.8%), followed by Hymenoptera (20.6%), Hemiptera (16.2%), and Orthoptera (12.3%). There were also significant differences in insect species and community compositions between sites. Creating open-field deforested forests are beneficial for some insect groups such as Hymenoptera and Orthoptera. Our results suggest that deforesting by the construction of an onshore wind farm might affect the composition and diversity of insects. Results of this study provide basic data for research on onshore wind farms.