据美国风能协会近日发表的报告,2001年美国风力发电新增装机容量达到创记录的1700兆瓦,使该行业的装机总容量达到4258兆瓦。去年新安装的风力发电设备可满足47 .5万个家庭的用电需要,同时每年可减少300万吨二氧化碳和2.7万吨有害气体的排放。根据美国能源部的测算,美国风能每年可发电6000亿度。过去20年来,美国风力发电的成本降低于80%,上世纪80年代安装第一批风力发电机时,每发1度电的成本为30美分,而现 According to a report released by the American Wind Energy Association in recent days, the newly installed capacity of wind power in the United States reached a record 1,700 megawatts in 2001, bringing the total installed capacity of the industry to 4,258 megawatts. Last year, newly installed wind power generation equipment could meet the electricity needs of 475,000 households, while reducing the emission of 3 million tons of carbon dioxide and 27,000 tons of harmful gases each year. According to the US Department of Energy, wind power in the United States can generate 600 billion kWh per year. Over the past 20 years, the cost of wind power in the United States has dropped by 80%. When the first wind turbines were installed in the 1980s, the cost per 1 kWh of electricity was 30 cents.