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The 1996 Western North America blackouts were two widespread power outages that occurred across Western Canada, the Western United States, and Northwest Mexico on July 2 and August 10, 1996. They were spread 6 weeks apart and were thought to be similarly caused by excess demand during a hot summer. Though affecting millions, the blackouts were for the most part just an inconvenience, and not emergencies. On both occasions planes continued to take-off and land, and power was restored within a few minutes or hours. The blackouts raised concerns about the then-recent debates about deregulating electricity utilities. ==July 2 blackout== On July 2, 1996, a voltage instability resulted from the loss of steady state equilibrium conditions, caused by reactive power deficiency in the Idaho area.〔 〕 The power failure affected parts of Alberta and British Columbia in Canada, western Mexico, as well as Idaho, Montana, Utah, New Mexico, California, and Arizona, affecting more than two million people. Most power was restored in an hour or two. President Bill Clinton directed the United States Department of Energy to investigate the reasons for the widespread power outage and whether it could have been prevented. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「1996 Western North America blackouts」の詳細全文を読む スポンサード リンク
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