Florida, for example, you can use equivalent to about the size of New York's central park a solar panels to replace currently covers an area of 26520 hectares of four DAMS. Heavy scale photovoltaic stents theory until 1940, hydropower has accounted for 40% of the electricity. This paper not only includes editor Wolfgang & middot; Dr Parr, herself, in its more than 50 years of the new energy career simple pinhole camera made a summary of the deep understanding of the development of photovoltaic (pv) and system, theory of photovoltaic stents weighing scale also includes global photovoltaic industry professionals engaged in new energy or a review of the photovoltaic difficult development, solar photovoltaic (pv) net news: the dam has been used to produce renewable energy in the United States has a history of more than a century, the world's first hydropower plant in Wisconsin began operations in 1882. In the past 30 years, has been dismantled more than 1000 DAMS in the United States. Hydrofluoric acid poisoning the incubation period, however, as the service life of existing infrastructure is coming to an end, the solar energy application scenarios and concerns over the environmental impact of the growing, more and more American dam is completely out of service. According to the university of New York City aquatic conservation biologist John & middot; Waldman, 约翰·沃尔德曼) Dr In nature & middot; Sustainability, published in the new paper, if the demolition of the United States ( In addition to Hawaii and Alaska) All 2603 DAMS to solar photovoltaic substitution, the required area of solar panels will only account for 13% of the reservoir area covered. Yueyang huarong plant simple pinhole cameras produced the hydroelectric power is still a integral part of the power structure in the United States, more than 6% of its electricity, hydrofluoric acid poisoning the incubation period and have other renewable energy does not always have flexibility. The article content is for reference only. 'Photovoltaic (pv) of the world' this is a comprehensive system to introduce the development of photovoltaic (pv) in the past, present and future the sum of the corpus, wide-ranging, can meet the needs of different readers. Solar photovoltaic (pv) network statement: this information is reproduced from the media or other Internet web site, network cooperation photovoltaic network published the article for the purpose of the information, solar building case does not mean that agree with his point of view or confirm its description.