成果報告書詳細
管理番号20160000000203
タイトル*平成27年度中間年報 風力発電等導入支援事業 環境アセスメント調査早期実施実証事業 環境アセスメント迅速化研究開発事業(順応的管理手法の開発)
公開日2016/5/28
報告書年度2015 - 2015
委託先名国立大学法人新潟大学 国立大学法人徳島大学 国立大学法人九州大学 国立大学法人横浜国立大学 株式会社日立パワーソリューションズ 株式会社ドーコン
プロジェクト番号P14023
部署名新エネルギー部
和文要約
英文要約1. Evaluation of collision risk for migratory birds and proposal of a criterion for assessing its risk: Autumn migration of swans was concentrated in 4 hours after sunrise and 2 hours before and after sunset. Additionally, peak day of spring migration of swans and geese was varied among last three years. These results suggest that collision risk could not be accurately estimated without understanding appropriate date and time period for observing migratory bird. We also confirmed that swans tended to avoid both operating and unexercised wind farm area vertically or horizontally.
2. Evaluation of collision risk for sea eagles and proposal of a criterion for assessing its risk: An Algos GPS satellite-tracking device was tagged on each of four juveniles of white-tailed eagle in Hokkaido. Relationships between the locations of eagle and altitude, geographical characteristics, or wind condition were analyzed each individual by GAMM. We also tried artificial feeding to capture eagle at three sites in Hokkaido in this winter, and succeeded in capturing a young eagle and tagging it a 3G-type GPS.
3. Numerical analysis of airflow around the wind farm: First, utilization method of data by aerial laser measurement was investigated in detail in particular. Next, the numerical simulation by LES was executed for the wind power generation place site in Japan. In addition, the topographic data to reproduce a fact of the bird collision which occurred in the past in the Hokkaido Tomamae area was prepared.
4. Development of adaptive avian collision management to wind farms: We examined the relationship between the number of collected samples and the magnitude of uncertainty in collision risk by using 3 kinds of dummy data related to feeding site, migration route and nest sites. We calculated the 95%-ile of collision risk. We also examined the necessity number of samples to conclude that the upper limit of collision risk estimate is below the allowable risk. In the next year we will develop a method to evaluate cost-effectiveness of such adaptive management procedure.
5. Verification of feasibility of adaptive avian collision management: We collected 11 EIAs submitted to the METI from 2012 to 2015, and then analyzed assessed species, survey period and frequency, and research procedure described in those reports. In addition, the economic effect of 10 wind turbines in a test site was calculated using wind speed, intensity distribution of turbulance, inflow angle, and windshear.
6. Verification of evaluation system for accelerating environmental assessment and the accuracy of collision risk models for sea eagle: By analyzing video picture for monitoring collision of sea eagle at Yuuhigaoka wind farm, we caught some cases that sea eagles flew within a whisker of blade. Such cases occurred in the winter day when wind speed from the sea was over 3.4m/s. We also collected collision risk estimates of sea eagle with wind farm from EIAs in Hokkaido.
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