20世纪70年代的石油危机以后,世界各国开始重视新能源产业,随着越来越多的国家实施鼓励新能源产业发展的政策和措施,新能源的生产规模和使用范围都不断扩大。扶持政策还使新能源产业相对其他产业来讲更好地熬过了2009年的金融危机。对新能源产业的总投资 Since the oil crisis of the 1970s, all countries in the world have begun to attach importance to the new energy industry. As more and more countries implement policies and measures to encourage the development of new energy industries, the scale of production and use of new energy sources are constantly expanding. Support policies also enable the new energy industry to better weather the 2009 financial crisis relative to other industries. The total investment in new energy industry