In recent years, the development of new energy represented by wind and photovoltaic power generation in my country has achieved remarkable results. As of the end of 2021, the scale of wind power and photovoltaic power generation accounted for more than one -third of global installed capacity installed capacity, ranking first in the world for 12 consecutive years and 7 years, respectively.
General Secretary Xi Jinping pointed out that it is necessary to increase its efforts to plan and build a large -scale landscape base, supported by its peripheral clean, efficient and advanced energy saving, and the new energy supply with a stable and safe and reliable UHV -transmission line as the carrier. Na system. What is the progress of the construction of a new energy supply system? How to plan the next step? The reporter interviewed.
The new energy supply and consumption system helps improve the ability of energy security and promote green and low -carbon development
Zhang Bei was scraped from spring to winter. The wind energy and solar resources in the Zhangbei area located in Hebei Province are rich. Through the Zhangbei Fine Cycling Power Grid project, it can transport about 14 billion kWh of green power to Beijing each year, accounting for about 1/10 of Beijing’s annual electricity.
How to “light up the lamp in Beijing” stably? “Zhang Beirou’s straight project is sent by two sending ends, a adjustment end, and a receiving end, forming a” mouth ‘ -shaped network. “Li Zhenqi, deputy director of the Hebei High -voltage Communication Inspection Center of the State Grid Hebei Bei Super Voltage Company The end access to Fengning pumping power storage power stations is like a super “charging treasure”. It has a maximum energy storage of nearly 40 million kilowatt -hours at a time. When the amount of power is sent, you can use the electric energy to pump the water to the upper reservoir to store it; when the power is insufficient, then the power is insufficient, then the amount of electricity is insufficient, then the power is insufficient. Put water for electricity.
Since the beginning of this year, my country’s new energy installation scale has expanded steadily. As of the end of July, the installed capacity of the wind power was approximately 340 million kilowatts, an increase of 17.2%year -on -year; the installed capacity of photovoltaic power generation was about 340 million kilowatts, an increase of 26.7%year -on -year; the two accounted for about 28%of the country’s total power generation machine. At the same time, the level of new energy consumption has continued to improve. In the first half of the year, the average utilization rate of wind power and photovoltaic power generation in the country reached 95.8%and 97.7%, respectively, and the “scenery” utilization rate of “scenery” in 12 provinces reached 100%.
What are the characteristics of the new energy supply system? You can use “three clear” to summarize. According to the relevant person in charge of the National Energy Administration, the first is to clarify the role of cleaning replacement of new energy cleaning such as wind power photovoltaic, leading the transformation of low -carbon transformation of energy, but also to play the role of coal power support and safety protection. The second is to clarify it. Give full play to the important functions of the resource allocation carrier of cross -provinces and regions, which not only promotes the baseization and large -scale development of new energy in the western region, but also provides strong support for carbon peak carbon and carbon in the eastern region; It is clear that the supply of new energy supply and eliminating the two in one, and must not be abolished. It is necessary to continue to enhance the supply capacity of new energy, ensure “sending”, and accelerate the construction of new power systems to ensure “use”.
The person in charge said that strengthening the establishment of a new energy supply and consumption system for efforts will help improve the ability of energy security. At present, my country’s oil and gas externally depends on the high degree of existence, and the power supply of local time and local areas is relatively tight. The potential of new energy resources, low development costs, and obvious competitive advantages, promoting new energy sources to “stand, stabilize, and establish good”.
In recent years, the cost of new energy development and utilization in my country has declined. Taking photovoltaic as an example, the current average cost is about 4,000 yuan per kilowatt, only about 20%in 2010. In addition to the photovoltaic of the households in 2021, the electricity price of the new land wind power and photovoltaic power generation was the same as the benchmarking electricity price of coal -fired power generation. In addition, the international competitive advantage of the new energy industry has continued to consolidate, and the photovoltaic industry provides more than 70%of components to the global market, and the output of wind turbines accounts for more than 2/3 of the world’s market share.
The planning and construction of a new energy supply and consumption system is also an urgent need to continue to improve the ecological environment and promote green and low -carbon development. In 2021, my country’s wind power, photovoltaic and other renewable energy development and utilization scale is equivalent to 753 million tons of standard coal, reducing the amount of carbon dioxide, sulfur dioxide, and nitrogen oxides of about 2.07 billion tons, 400,000 tons, and 450,000 tons, respectively. The results are significant.
New energy large -scale and high -scale development requires the collaborative support of grid transmission and distribution and other power supply and energy storage
The comprehensive benefits of the large -scale and high -scale development of new energy are huge, but it is necessary to stand, stable, and well -established. It also needs the coordinated support of the power grid and other power supply and energy storage. “As a special commodity, power and demand need to be balanced in real time. Only by supplying and eliminating both princes and overall plans can we effectively promote the large -scale, high proportion, marketization, and high -quality development of new energy.” The new energy supply and consumption system is a systematic concept that needs to be based on the overall situation and the general market.
——Phampn the role of the “main force” of the large -scale base to ensure that new energy is “sent”. At present, the first batch of large -scale wind power photovoltaic bases mainly based on desert, Gobi, and desert areas have all started. The second batch of base projects are actively promoting the preliminary work and part of the construction. Organization.
According to reports, the next seven continents will be accelerated to build new energy bases on the upper reaches of the Yellow River, Hexi Corridor, Yellow River, Ji North, Songliao, Xinjiang, and Yellow River downstream of the Yellow River; The hydropower base regulates the energy and delivery channels, coordinates the development and construction of the two major water scenery bases, Sichuan, Yunnan, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, Guizhou, and southeast, and the development and construction of the two major water scenery bases in Southeast Tibet; promote the development of large -scale development and profound sea demonstration development, focusing on the construction of the Shandong Peninsula, the Yangtze River Delta, Minnan, and Guangdong East and Beibu Gulf five maritime wind power base clusters.
——Che support for construction transmission channels and peak adjustment capabilities to help new energy “be available”. Most of my country’s landscape resources are distributed in the “three north” areas, and the use of electricity loads is mainly concentrated in the central and eastern regions. As a result, the transmission pressure of cross -provincial and districts is large. Sexuality has put forward higher requirements for the supporting construction of transmission channels and peak adjustment capabilities.
In terms of existing, the use of some transmission channels that have been completed now has not fully reached the design level, and it is necessary to further improve the utilization rate and the proportion of new energy power. In terms of increasing, it is necessary to optimize the layout of the newly -built channel. According to the “Fourteenth Five -Year Plan” Renewable Energy Development Plan, the proportion of renewable energy power for new transmission channels is not less than 50%in principle. Du Zhongming, the dean of the Power Planning and Design Institute, said that at the same time, it is necessary to strengthen the construction of peak adjustment capacity. The construction period of the pumping storage power station is relatively long. On the basis of the construction of water storage power stations Promote other peak adjustments such as the flexibility of thermal power, new energy storage, and load -side adjustment.
In recent years, my country has adhered to comprehensive policies, and the power system adjustment ability has been improved. On the power supply side, the flexibility transformation of the coal electrical units has been completed about 150 million kilowatts, and the system regulates the ability to regulate the ability of about 30 million kilowatts; actively promotes the construction of water pumping storage. As of the end of 2021, the total installed capacity reached 36 million kilowatts. On the side of the grid, a total of 33 DC high -voltage lines were built, and the “West East Transmission” scale exceeded 290 million kilowatts. On the load side, in -depth excavation of demand response potential, improving the ability to regulate new energy sources on the load side.
——Set the system of distributed new energy supply and consumption integration system to promote the “good use” of new energy. Photovoltaic roofs, photovoltaic curtain walls, fishing light complementary power stations … In 2021, my country ’s distributed photovoltaic increase of about 29 million kilowatts, accounting for about 55%of all new photovoltaic power generation installed capacity. This is the first time in history to break through 50%.
“Based on the actual situation of distributed energy from the load and no need to pass through the long -distance transportation of large grids, we must pay attention to the construction of the main grid and enhance the flexible and flexible interconnection level of the regional grid; The integrated coupling of new energy supply and consumption to improve the ability to independently balance. “Li Sheng, the dean of the Hydropower and Water Resources Planning and Design Institute, said that we must adhere to the intensive and distributed formulas, eliminate it on the spot The southern region focuses on promoting decentralized wind power and distributed photovoltaic power generation to develop nearby, promoting the integration and development of multi -scenario of new energy power generation, and promoting more energy and electricity “consumers” to “producers”.
The construction of the new energy supply and consumption system will be promoted in an all -round way from policies, technology, and mechanisms.
According to the plan, during the “Fourteenth Five -Year Plan” period, my country’s wind power and solar power generation will be doubled; by 2030, the total installed capacity of my country’s wind power and solar power generation will reach more than 1.2 billion kilowatts.
According to the relevant person in charge of the National Energy Administration, the gradual transformation from the energy structure mainly based on fossil energy -based energy structure to the new energy supply and consumption system is a system reshaping project. There are also many constraints: First, transform new energy into stability The technical system of power supply has not yet formed. The second is that new types of energy storage and pumping can be accumulated for support. Third, the new industrial system that is compatible with the development level of renewable energy has just begun. Fourth, the current system and mechanisms are not yet adapted to the innovation of the new power system model.
In the next step, the National Energy Administration will organize relevant institutions and departments to take strong measures to promote the construction of a new energy supply and consumption system in an all -round way from policies, technology, and mechanisms. Among them, the support of the factors such as land and funds will be strengthened to provide policy support for promoting the construction of large -scale landscape bases; key core technologies such as high -voltage power transmission, large power grid security, new energy grid -to -network acceptance, as well as comprehensive energy services, energy big data, etc. The new business and new models carry out in -depth research to provide technical support for the planning and construction of a new energy supply and consumption system.
At the same time, the construction of policy systems and institutional mechanisms will be strengthened. Implement the control of new renewable energy consumption in total energy consumption control, and further improve the guarantee mechanism for renewable energy power consumption. Steady to promote new energy participation in market trading mechanisms, and coordinate green power transactions and green certificates transactions.
In terms of improving the market mechanism of the power auxiliary service, Zhang Lin, deputy director of the Planning and Development Department of the China Electric Power Enterprise Federation, made a proposal. By increasing compensation for compensation, the flexibility of the flexibility of coal and electricity is systematically promoted, and the systemic costs are reasonably shaped. Loading, virtual power plants and other measures to assist the market’s main status and access conditions to create conditions for the high -quality development of new energy.
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Post time: Oct-08-2022