Photovoltaic (pv) and a curve 'duck' challenge

Solar photovoltaic net news: according to non-fossil energy development path, by 2030, the solar power installed in China will reach 8. Will be more than 2 billion kw 500 million kw, 2050 years. But in the process of distributed photovoltaic high quality development, grid given be sure distributed power projects are important considerations.

on July 10, with & other Fusion innovation & throughout; As the theme of the third session of distributed photovoltaic carnival held in jinan, industry experts and scholars to discuss the development of distributed photovoltaic path. With the large-scale development of distributed photovoltaic and grid given points also gradually become the new contradiction.

on November 22, tesla announced to Modle X and the Model S for tariffs, the price at the same time, also announced Modle 3 prices.

as of the end of may this year, the national photovoltaic cumulative installed capacity reaches 1. 82. 1 billion kilowatts, including distributed photovoltaic (pv) is 54. 39 million kw, distributed photovoltaic power proportion is from 13 in 2015. Increased from 7% in 2019 on May 29. The development of 8%, significantly faster. With the rapid growth of distributed photovoltaic power and the rising proportion of, also to the power grid has brought a series of challenges.

the National Development and Reform Commission energy research institute, mold of the renewable energy research center, according to state grid corporation, by the end of 2018, the state grid area distributed grid-connected photovoltaic (pv) grid capacity of 47. 01 million kilowatts, due to the distributed photovoltaic power station mainly concentrated in east China, north China and central China region, the local high access of distributed photovoltaic changed the running characteristics of the distribution network, not only increased the difficulty of voltage control, also reduces the power quality level, to the safe operation of the power grid has brought a series of challenges.

he thinks, with the continue development of photovoltaic power generation, will inevitably encounter & other parts; The duck curve & throughout; Difficult problem. “ The duck curve & throughout; Problems originated in California, the local power grid photovoltaic power generation during the day can meet a large part of the local electricity demand, but in the late afternoon sun photovoltaic stop after, need other power supply will quickly rise, quickly reached a peak. This phenomenon is called & other; The duck curve & throughout; 。 The fluctuation in the power grid in power supply voltage, power supply quality, relay protection and power adjustment ability decline.

state grid electric power dispatching center deputy chief engineer zhe-yi pei Suggestions, in the face of the present situation, on the one hand, to scientific and orderly develop distributed power development planning, considering the regional economic development, electricity demand, energy and power grid planning evaluation local distributed accept ability; At the same time, improve the scientific and unified policy system and grid technology standard, encourage spontaneous for distributed power supply and on-site given; To strengthen the demand side management, encourage the integration of optical storage, control, users can make full use of the precise load terminal load, distributed energy storage, improve system flexibility; Strengthen the prospective study, technically.

at present, from the point of economy and safety integrated, wind power, photovoltaic power generation will be the main non-fossil energy future. According to non-fossil energy development path, by 2030, China's solar power installed will reach 8. Will be more than 2 billion kw 500 million kw, 2050 years. But in the process of distributed photovoltaic high quality development, grid given be sure distributed power projects are important considerations. Although & other; After the subsidy & throughout; Period, pv is facing challenges, photovoltaic industry people with lofty ideals are still hope that through continuous technology industry KWH cost model innovation, and promote the development of distributed photovoltaic (pv).

solar photovoltaic 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. The article content is for reference only.

'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. 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,