The new changes and problems in the largest and most complex North American power system, after its all-round deregulation introducing market principles into practice, are presented and analyzed.

介绍了最大最复杂的北美电力系统在全面引入电力市场机制后所出现的新变化和新问题：将工业与商业合并在一起而形成的新型工商业电力系统；

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In America, deregulation of the wholesale power market means ever larger quantities of power are travelling greater distances, yet investment in the grid has halved since the 1970s.

ECONOMIST: ENERGY: Building the energy internet | The

Even after years of deregulation, the U.S. power market remains highly fragmented.

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Big mistake No. 2: While deregulation mandated that utilities buy their power on the open market and pay market prices, it barred them from passing on increases to their customers until at least March 31, 2002.

CNN: The California power quagmire