美国是能源消耗大国，为了节约能源，该国采取了多种措施，取得了良好的效果。美国的节能措施主要有以下几种：一、调整能耗结构近20多年来，美国工业能耗结构不断调整，工业部门的总能耗逐渐下降。据统计，1973年以来，美国单位国民生产总值的能源消耗下降了20％以上，预计到2 The United States is a major energy consumer. To save energy, the country has taken various measures and achieved good results. Energy-saving measures in the United States mainly in the following categories: First, adjust the energy structure Over the past 20 years, the United States industrial energy structure continues to adjust, the total energy consumption of the industrial sector is declining. According to statistics, the energy consumption per unit of gross national product of the United States has dropped by more than 20% since 1973, and is expected to reach 2