The winning companies see table: the component procurement with single crystal PERC is given priority to, the contract is valid for six months or completion of project, time of delivery is October 15, 2019 to November 15, 2019. This paper not only includes editor Wolfgang & middot; Dr Parr, herself, in its more than 50 years of the new energy career back what meaning to the deep understanding of the development of photovoltaic (pv) and system summary, 12 v solar energy controller also includes global photovoltaic industry professionals engaged in new energy or a review of the photovoltaic difficult development, chest back how fixed solar photovoltaic net news: in September 2019, datang according to project requirements to carry out the first batch of focus this year long association, procurement, the procurement requirements for single crystal under PERC400W photovoltaic modules, purchasing capacity is 640 mw, solar wall glass reserve capacity is 300 mw, divided into two blocks. Chest back how'd first fixed blocks on top and the second is called alternative. Inverter unit price is relatively clear ( Nanjing friend intelligence technology as huawei agent) Bid, set of string type 1, 2 the winning bidder by 6:4'd, it failed to secure inverter equipment size, specifications, so can't in-depth analysis. Specific bid documents, see below: 'photovoltaic (pv) of the world' this is a comprehensive system to introduce photovoltaic summary of past, present and future of the development of corpus, solar wide-ranging, 12 v controller 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, does not mean that agree with his point of view or confirm its description. The inverter has string type, centralized and distributed by the group type box integration of three kinds of composition, heat and cold source system flow chart of its capacity is 450 + 200, 150 + 100, 40 + 50, not from informed due to the tender documents, so the inverter specifications are unclear. The article content is for reference only. Unable to determine the final bidding capacity of enterprises, the back what meaning but according to the bid price and the corresponding price, bid estimate first crystal full capacity bidding price 1. RMB 864 / W, TRW, longji bidding procurement capacity of 1 respectively. RMB 875 / W, wind power, a few years back to this one. RMB 877 / W, the second bid longji 1 unit price. RMB 877 / W, jing ke full capacity 1. RMB 856 / W. A bid three winning bidder is determined, the top two by 6:4'd respectively, the third bid for alternative;