Wechat scan QR code < / P > < p > to share with friends and circle of friends < / P > < p > State Grid website < / P > < p > State Grid website on March 1 news, energy is an important material basis for economic and social development. Since the reform and opening up, China's energy industry has developed rapidly, and has become the world's largest energy producer and consumer, which strongly supports the economic and social development. However, China's energy structure has been dominated by coal for a long time, and oil and gas are highly dependent on foreign countries. It is the largest carbon emission country in the world, and the transformation of clean energy and low carbon is urgent. General secretary Xi Jinping put forward the new strategy of "four revolutions and one cooperation" for energy security, and pointed out the direction for China's energy development, and opened up a new path of energy development with Chinese characteristics. We should follow the general secretary Xi Jinping's thought of ecological civilization, actively respond to the global climate change caused by carbon emissions, unswervingly promote green development, accelerate the construction of clean, low carbon, safe and efficient energy system, continue to promote carbon emission reduction, and lead global governance. First, the company's main practice in promoting energy and power transformation is to firmly establish the concept of "energy transformation and green development", speed up the development of power grid, increase technological innovation, and promote energy and power from high carbon to low carbon, from fossil energy to < a target = "_ blank" href=" https://news.163.com/news/search?keyword=%E6%B8%85%E6%B4%81%E8%83%BD%E6%BA%90 "> clean energy < / a > should be changed to accelerate the formation of green production and consumption mode, and help the construction of ecological civilization and sustainable development. < / P > < p > < strong > make every effort to promote the development of new energy and clean energy supply. < / strong > accelerate the construction of power grid, and invest about 2.4 trillion yuan in the 13th five year plan to build a strong smart grid and ensure the timely grid connection and consumption of new energy. Strengthen the construction of transmission channels, trans provincial transmission < a target = "_ blank" href=" https://news.163.com/news/search?keyword=%E7%94%B5%E8%83%BD "> power < / a > reached 230 million kilowatts, and 43% of clean energy was delivered, realizing the optimal allocation of resources nationwide. Since the 13th five year plan, 21 pumped storage power stations have been started with an installed capacity of 28.53 million kilowatts, and the scale of operation and construction in progress has reached 62.36 million kilowatts, so as to improve the new energy consumption capacity. By the end of 2020, the installed capacity of clean energy in the company's business area will be 710 million kilowatts, accounting for 42%. Where < a target = "_ blank" href=" https://news.163.com/news/search?keyword=%E9%A3%8E%E7%94%B5 "> the installed capacity of wind power < / a > and solar power generation is 450 million kilowatts, accounting for 26%, 14 percentage points higher than that in 2015, and the utilization rate reaches 97.1%; new energy in 21 provinces and regions has become the first and second largest power sources; the power generation capacity of wind power and solar power generation is 587.2 billion kilowatt hours, reducing coal consumption by 250 million tons and carbon dioxide emission by 450 million tons. < / P > < p > < strong > vigorously implement electric energy substitution to promote the electrification of terminal energy consumption. < / strong > the task of "replacing coal with electricity" in northern China has been fully completed, with a total of 10.63 million households, helping to win the blue sky battle. Accelerate the construction of electric vehicle charging network, build Expressway fast charging network covering 176 cities, build the world's largest intelligent vehicle networking platform, and support the development of new energy vehicle industry. We will implement the development strategy of the Yangtze River economic belt, actively promote the construction of shore power for ports along the Yangtze River, and build a total of 1203 sets of shore power facilities to basically cover the main ports of the Yangtze River. In the civil aviation airport, coastal and inland terminals, we vigorously promoted the use of electricity instead of oil, and promoted more than 40000 electric kilns and electric cookers in the industrial field. In recent years, 867.7 billion kwh of electricity has been replaced, which is equivalent to reducing 480 million tons of bulk coal and 870 million tons of carbon dioxide. The proportion of electric energy in terminal energy consumption has reached about 27%. < / P > < p > < strong > strengthen power technology innovation and promote the efficient use of clean energy. < / strong > develop and fully master UHV core technology and a full set of equipment manufacturing capabilities to realize large-scale and long-distance transmission of clean energy. Build national wind and solar energy storage and transportation, Zhangbei Rouzhi and other projects, and explore new modes of new energy friendly access and comprehensive utilization. Build a "new energy cloud" platform to provide one-stop services such as new energy consumption analysis, power grid connection, subsidy declaration and transaction settlement. In the field of grid connection and operation control of new energy power plants, more than 800 scientific research projects have been completed, 12 national science and technology awards have been won, 9 international standards have been formulated, 57 national standards, 57 industrial standards and 80 enterprise standards have been formulated. < / P > < p > with the rapid development of new energy and the wide access of new energy equipment, the operation characteristics of power system have changed significantly, which needs to be studied and solved as a whole. One is to deal with the relationship between clean development and system security. New energy, DC and other alternative conventional units, electric vehicles, distributed energy, energy storage and other interactive energy equipment are widely used, the power system presents a high proportion of renewable energy, high proportion of power electronic equipment "double high" characteristics, the system moment of inertia continues to decline, frequency and voltage regulation capacity is insufficient. Power system is in urgent need of innovation and technology upgrading. The second is to deal with the relationship between clean development and power security. Wind power and solar power generation have randomness, power generation output "depends on the weather", mainly provides electricity. In recent years, China's electricity demand presents the characteristics of "double peaks" in winter and summer, and the peak valley difference is constantly expanding. The peak load in winter in northern China is often close to or more than that in summer, so the difficulty of power supply is increasing year by year. From the actual operation point of view, to meet the peak load needs of power grid, it mainly depends on conventional power supply. While vigorously developing new energy, we should not only coordinate the development of conventional power supply, but also pay more attention to demand side response. The third is to deal with the relationship between clean development and system cost. In order to adapt to the "double high" and "double peak" situation of new energy integration and consumption, the construction and operation costs of each link of power system source network load storage should be increased. Studies at home and abroad show that with the rapid increase of the proportion of wind and solar power generation, the system cost to absorb new energy will rise significantly, and the decline of new energy generation cost can not be fully offset. China's new energy resources and demand are inversely distributed, and the cost of centralized development and long-distance large-scale transportation in the western and northern regions is higher. In addition, the low cost of energy consumption is not conducive to the "dual control of energy" and energy saving, it is difficult to support the sustainable high-quality development of the energy industry, and it is not conducive to the growth of state-owned enterprises. With the large-scale development of new energy, efforts should be made to ease the contradiction between the rising cost of energy supply side and the low cost of energy demand side.

面对新能源快速发展的机遇和挑战，我们要以更大决心、更强力度、更实举措，通过供给侧结构调整和需求侧响应?
2023-03-22 10:04:29