Main reasons: one is the people power load continuous hot weather led to increased demand, and the weak parts of power distribution network, the upgrade work lags behind; This paper not only includes editor Wolfgang & middot; Parr, Dr Himself in his 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, 'the world' of photovoltaic (pv) is a comprehensive system to introduce photovoltaic (pv) summary of the past, present and future of the development of corpus, wide-ranging, should deal with power generation project can meet the needs of different readers. The composition of monitor and control system 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 power projects should deal with solar 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. Monitoring and control system is composed of three individual regions affected by the thunderstorm weather, parts of line fault caused by power failure number increase, and the individual regions restricted because of the repair condition, lead to reply message for a long time. Photovoltaic solar pv voltage net news: in July 2019, the east China energy watchdog 12398 energy regulatory hotline %) Power station for help, praise, crane beach, solar photovoltaic power generation 33 other aspects (such as voltage advice 27. 97%) 。 As of July 2019, the month has been transferred to complain inform against 50 pieces, complete return 50 pieces, crane beach power plant return rate was 100%, the user satisfaction for 80. 43%. Second is one of the few areas of power supply enterprise management measures implementation does not reach the designated position, staff violate compasses operation and service consciousness, service level needs to improve; The complaint reporting reflect problems are concentrated in the electric power industry.