The southern part of Manhattan was without power for almost a full workweek, apparently because a major substation hub in the electrical grid, located beside the East River, was knocked out in a fiery display when Hurricane Sandy and a tidal surge caused it to flood. There was no pre-built workaround to deliver power by an alternate route.
纽约市的例子是很好的证明。曼哈顿南部断电几乎一整周，这显然是因为位于东河（East River）边上的电网主变电站在飓风桑迪和潮涌导致河水漫堤时被毁所致。该地区没有预先建设好输送电力的第二方案和路线。