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电气工业是一个国家的资金密集型产业之一。在20世纪90年代,发电、输电以及配电资产占美国商业资产的9％左右。1999年,一般的股份制电气工业基础建设支出为228亿美元,到2000年,最新数据显示,该项支出增加为253亿美元。由于商业发电的增长和电力批发市场竞争的日益激烈,零散的电力生产者的基础建设支出也增长显著,电力批发交易收入增长迅速。2000年,股份电气公司发电、输电、环保及其他的总花费接近450亿美元。
The electrical industry is one of the capital-intensive industries in a country. In the 1990s, power generation, transmission, and distribution assets accounted for about 9% of U.S. commercial assets. In 1999, the general infrastructure construction expenditure for the joint-stock electrical industry was US$22.8 billion. By the year 2000, the latest data showed that this expenditure had increased to US$25.3 billion. Due to the growth of commercial power generation and the increasingly fierce competition in the wholesale power market, the infrastructure spending of scattered power producers has also increased significantly, and the revenue from electricity wholesale transactions has grown rapidly. In 2000, the total cost of power generation, transmission, environmental protection, and others of the share-based electric company was close to 45 billion U.S. dollars.