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, solar photovoltaic (pv) network statement: this information is reproduced from the power grid cooperation media or other Internet web site, how do not open the cabinet in the back 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. Around the competent department of industry and information technology as well as the central management, enterprise should according to the requirements to make corresponding management give full play to the leading role of national technological innovation demonstration enterprises, seriously sum up experience, combined with the actual enterprise technology innovation work toward further. '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. National technology innovation demonstration enterprises implement dynamic management, review the evaluation once every three years, to confirm qualified demonstration enterprises, photovoltaic industry how to run unqualified to cancel the title. Solar photovoltaic net news: the Ministry of Industry and Information Technology recently published the national technology innovation demonstration enterprises in 2019, xinjiang big 53 companies such as new energy co. , LTD. The provinces, autonomous regions and municipalities directly under the central government and cities under separate state planning, sinkiang production and construction corps departments of industry and information technology, the central management of enterprise, to further implement the strategy of innovation driven development, according to the measures for the management of technology innovation demonstration enterprises acknowledgment ( Trial) 》( Ministry of industry cluster technology limited [2010] no. 540) , after verification, our 53 companies such as Beijing millet mobile software co. , LTD. , for the 2019 national technology innovation demonstration enterprises, See attached list) , double sail battery is miscellaneous brands are hereby published. Super capacitor parameters of national technology innovation demonstration enterprises of dynamic management, review assessment once every three years, to confirm qualified demonstration enterprises, the cancellation of the super capacitor parameters is unqualified in title. The article content is for reference only.