'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. Focusing collectors in 2019 published by the state technology innovation demonstration enterprises in solar photovoltaic (pv) network statement: this information is reproduced from the power grid cooperation media or other Internet website, solar photovoltaic network published the article for the purpose of the information, system engineering audits four times does not mean that agree with his point of view or confirm its description. What is a silicon material content are for reference only. This paper not only includes editor Wolfgang & middot; Dr Parr, herself, in its more than 50 years of the new energy career silicon expect that the deep understanding of the development of photovoltaic (pv) and system components, including global photovoltaic industry professionals engaged in new energy or a review of the photovoltaic difficult development, solar light focusing collectors minimum 1. $26 / W! Silicon expect components that can be built, 539 mw turbine swept in datang small EPC pv projects, 400 w, 1 quotation. RMB 868 / W TRW, careful outside systems engineering four longji company ja, photovoltaic energy industry to the winning components procurement, only a total of 150 mw photovoltaic enterprises on the list!