Through the cost--effectiveness analysis of the photovoltaic roof, this article discusses the facing problems in the development of photovoltaic roof,and proposes several suggestions for solving these prob- lems.%介绍了光伏屋顶的涵义和国内外发展概况及其特点，以鄱阳湖地区采用光伏屋顶为例，具体研究了光伏屋顶的经济效益和社会效益，指出了发展光伏屋顶所面临的问题，对加速我国光伏屋顶发展给出了有益的建议。
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