'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. This paper not only includes editor Wolfgang & middot; Dr Parr, herself, in its new energy career of more than 50 years, the deep understanding of the development of photovoltaic (pv) and system summary, also include the global photovoltaic industry professionals engaged in new energy or a review of the photovoltaic difficult development, as of this week, two repair domestic enterprises have not restarted, normal production is resumed at the end of August, is expected polysilicon monthly price affect the output of about 1300 tons. This week each grade polysilicon material average price stabilization is constant, the ingot casting materials prices fall for 8 weeks after steady stop falling this week, the main reason is that the nearly two months for a record low prices, has almost all the production cost of polysilicon material enterprise below, at the current market price, some enterprises have been more difficult to maintain cash flow, so the ingot casting materials prices down is down, temporarily stable operation at a low price. Silicon downstream enterprises, on the other hand, is not affected by the battery piece part price, remain at higher capacity, demand on unabated support this week single crystal materials prices stabilized. At the end of August there will be a great enterprises begin to repair, affect the output of the week in August. Solar photovoltaic webex: this week domestic monocrystal with dense polycrystalline material price range in July. 4 - 7. Average price 70000 yuan/ton, remain at 7. 570000 yuan/ton; The article content is for reference only. 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, introduce solar glass does not mean that agree with the point of view or confirm the description. Single crystal materials prices steady this week, mainly due to: on the one hand, a large number of single crystal materials orders are signed at the end of last month, most of this week to perform a preliminary order is given priority to, a few new sign under the premise of no fluctuations in demand, mainly stabilized; 3 - in September 4 - companies plan maintenance, research and development of solar controller battery simulator from affect the output of about 3500 tons. Under the widely expected demand gradually warm, silicon downstream link capacity expansion continues, also maintain high capacity utilization in silicon wafer production enterprises, and domestic polysilicon enterprises because maintenance supplies, the photovoltaic application that provide support for polysilicon prices, research and development of solar energy controller so in the short term is expected for the game of upstream and downstream of the polysilicon prices overall steady running, after being the demand essence, solar glass is introduced market prices rising steadily. Ingot casting with polycrystalline loose material clinch a deal the price range in 5. 5 - 5. Average price 90000 yuan/ton, remain at 5. 750000 yuan/ton.