The article content is for reference only. According to the National Energy Administration, in the first half of 2019 domestic installed capacity of 11. 4 gw, so most pv enterprises are more than 80% of the energy in the overseas market. Soot online monitor suppliers affected by falling installed in the first half of 2019 the domestic market, most of the pv enterprises are affected, intelligent systems engineering belong to 25 companies, net profit attributable to shareholders of listed companies, 11 companies fell. Piston accumulator principle of solar photovoltaic net news: as of August 26, a total of 15 pv stocks released earnings in the first half of 2019, 10 companies had disclosed the earnings in the first half of 2019. 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, photovoltaic solar photovoltaic glass manufacturers 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, does not mean that agree with his point of view or confirm its description. Piston accumulator principle 'photovoltaic (pv) of the world' this is a comprehensive system to introduce photovoltaic summary of past, present and future of the development of corpus, wide-ranging, and can meet the needs of different readers. What is a real back in 2019, according to published 15 first-half results of photovoltaic enterprise net profit, only two losses, 10 photovoltaic enterprise, in the process of the disclosure of three losses.