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从20世纪90年代开始,美国许多州陆续开始实施可再生能源配额制度(Renewable Portfolio Standard,RPS),直到今天RPS政策仍然集中在各州内部,并未形成联邦性质的RPS政策。截止2014年,美国已经有30多个州实施了RPS政策,其中德克萨斯州(下简称德州)的配额制政策最为典型,也是美国公认的最成功的配额制政策。除了发展经济、改善环境、保障能源安全等现实需求外,德州具备了实施配额制的基本条件,一是优越的自然地理条
Since the 1990s, many states in the United States have started to implement the Renewable Portfolio Standard (RPS) one after another. Until today, RPS policies are still concentrated in the states and no federal RPS policy has been formed. As of 2014, more than 30 states in the United States have implemented RPS policies. Among them, the quota system in Texas is the most typical and is also the most successful quota system accepted by the United States. In addition to the real needs of economic development, environmental improvement and energy security, Texas has the basic conditions for implementing the quota system. The first is the natural geographical strip