地上設置形太陽電池アレイの最適傾斜角度に関する基本的検討

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タイトル別名
  • Fundamental Research on Optimum Tilt Angle of Solar PV Array on A Ground
  • チジョウ セッチガタ タイヨウ デンチ アレイ ノ サイテキ ケイシャ カクド

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In most cases a tilt angle of PV array on a ground is adjusted to the angle that can gain a maximum irradiation. When PV module was extreme expensive compare with other components of PV system, it was optimum angle. But it is not always an optimum tilt angle from a economical point of view now and in the future. Because the price of PV module has reduced, and a wind load and snow load on PV array change according to a change of the tilt angle besides irradiation, and it affects a construction cost of a support structure and foundation.<br> From the economical point of view, I studied the optimum angle of stndard PV array on the ground at ten sites except heavy snow area in Japan. The construction cost was analyzed, and it was made clear that the optimum economical angle, the angle that made a cost for generation of electric power cheapest, was smaller than that can gain the maximum irradiation by about 20 degrees at most sites.

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