West-East Electricity Transmission Project is originated in Qianxinan Prefecture whose power system consists of southern power systems and regional power systems.

黔西南州是西电东送的发源地，全州电力供应由南方电网和地方电网构成。

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It can also be applied in the daily optimal economic dispatch of interconnected power systems and the regional power system with hydropower stations and thermal power plants.

该方法还可应用于水火电混合电力系统和互联电力系统的日有功优化调度。

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The influence of regional power systems has quietly become a critical component of the competitive calculus that firms consider when evaluating where to expand, start or scale back operations.

FORBES: "Gourmet Power" Alters Geography of Global Finance