函館 風力発電事業 5年ぶりに単年度黒字

(2011年)

道新ニュース

2011年9月10日(土)

風力発電5年ぶりに黒字 函館

【函館】函館市が、2004年12月に合併した旧恵山町から引き継いだ風力発電事業の10年度決算が、5年ぶりに単年度黒字となった。北電への売電収入は1624万円で、維持管理費など支出を差し引いた黒字額は427万円。頻発していた故障がなくなったためで、市工業振興課は「保守点検をしっかりすることで、稼働率を上げ、収入増につなげたい」と話している。(田中雅章)

風力発電機は恵山地区に2基あり、出力は1号機が1400キロワット、2号機が1500キロワット。10年度の発電実績は前年度の3倍の133万3390キロワット時だった。

前年度は故障が原因で2基合わせて計469日間停止していたのに対し、ドイツのメーカーが故障の修理に当たり、10年度は停止期間が計58日間にすぎなかったことが大きかった。

また市は昨年10月に遠隔監視システムを導入。強風や小さなトラブルで風車が停止した時には職員が現地に足を運ぶことなく、コンピューター管理ですぐに再稼働できるようになった効果もあるという。

風力発電事業の10年度までの累積赤字額は2690万円。4日に開かれた市の「事業仕分け」で、風力発電事業は「経費節減に最大限の努力が必要」などとして「改善を図る」との判定が下された。

市工業振興課は、10年度以上に稼働率を上げることで年間1800万円前後の売電収入を見込み、16年度末の累積赤字解消を目指している。

(北海道新聞提供)

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