一、概述据估计 ,美国的照明用电量达到 515ＴＷＨ ,占美国总电量消耗的 16 % ,商业用电量的 37% ,居民用电量的11% ,工业用电量的 7%。其照明用电量的具体分布情况如图 1所示。图 1　美国照明用电量的分布根据美国劳伦斯伯克利国家实验室为美国能源部所作的分析 ,如果所有的建 I. Overview It is estimated that the lighting electricity consumption in the United States reached 515 TWh, accounting for 16% of the total electricity consumption in the United States, 37% of commercial power consumption, 11% of residential electricity consumption and 7% of industrial electricity consumption. The specific distribution of lighting power consumption shown in Figure 1. Figure 1 Distribution of lighting usage in the United States According to the analysis conducted by the U.S. Department of Energy at Lawrence Berkeley National Laboratory,