People’s Daily Online, Beijing, October 3 (Reporter Du Yanfei) In September 2020, my country announced that its carbon dioxide emissions will reach the peak before 2030, and strive to achieve carbon neutrality by 2060, demonstrating the responsibility of a major country. At the 2021 China Electric Power Planning and Development Forum (the eighth) held a few days ago, the guests at the meeting agreed that energy is the main battlefield to achieve carbon peaks and carbon neutrality, electricity is the main force, and a new type of new energy should be built. The power system helps to achieve the goal of carbon peak and carbon neutrality.
You Min, executive vice president and secretary-general of the China Electric Power Development Association, said that at present, my country’s power system is developing from centralized large-scale long-distance deployment to centralized and distributed coexistence, and the traditional mechanical moment of inertia maintains a stable system. It is shifting to a system that contains a large number of intermittent fluctuating power supplies, energy storage equipment, and power electronics.
“Along with the construction of a new power system with new energy as the main body, through the accurate perception of various scenarios by energy Internet of Things equipment, the deep integration of multiple energy flows and data flows and the collaborative interaction of various links of the’source network load storage’ are realized. The form and main body of the power system will undergo major changes.” You Min said.
Zhou Xiaoxin, an academician of the Chinese Academy of Sciences, said that my country’s energy transition to achieve the goal of carbon peak and carbon neutrality must implement two constructions: building a clean, low-carbon, safe and efficient energy system, and building a new power system with new energy as the main body. It is necessary to vigorously develop and utilize renewable energy, develop the comprehensive utilization of non-fossil energy such as nuclear energy, biomass energy, and geothermal energy; actively promote the flexible transformation of coal power; continue to promote the electrification of end-use energy; strengthen key technological innovations such as power electronics and energy storage ; Improve various policies for energy transition and adhere to the direction of market-oriented reforms.
“my country is developing under the conditions of carbon peak and carbon neutrality, and the energy sector bears the brunt. It is necessary to optimize the implementation path from the current state to the target state.” Xue Yusheng, an academician of the Chinese Academy of Engineering, believes that new power systems and non-electric energy systems, environmental systems The boundary conditions between non-electric links such as, social systems are no longer approximately unchanged, and planning and scheduling can no longer be based on closed systems. The Cyber-Physical Social System (CPSSE) based on system theory is to achieve carbon peaks and carbon neutrality. Framework for the optimization of goals and energy transition paths.
According to Peng Caide, chief engineer of the General Institute of Hydropower and Water Conservancy Planning and Design, the achievement of carbon peak and carbon neutral goals requires the continuous large-scale development and utilization of renewable energy. The development of new energy in the “14th Five-Year Plan” is based on the previous “centralized and decentralized simultaneous development”, “onshore and maritime simultaneous”, “on-site consumption and delivery and consumption simultaneously”. System security and marketization issues promote the development of “single-variety development and multi-variety complementary” and “simultaneous development of single scene and comprehensive scene”.
“Under the background of carbon peak and carbon neutrality, the large-scale grid-connected form of new energy represented by the distributed photovoltaic development of the entire county’s rooftops will bring huge benefits to my country’s power supply, new energy consumption, and stable operation of the power distribution system. Challenges. Flexible resources such as energy storage are of great significance to constructing new power systems and ensuring the safe and stable operation of power systems.” said Li Jingru, chief engineer of the State Grid Economic and Technology Research Institute, suggesting that we should strengthen scenario analysis, improve the index system, and improve the market system. Promote the application of energy storage in the power industry in three aspects.
On the power demand side, Shan Baoguo, vice president of the State Grid Energy Research Institute, suggested to promote resource development and utilization, improve market mechanisms and business models, strengthen key technological breakthroughs, and cooperate with all parties to form a joint force.
Wang Shuang, the director engineer of the Electric Power Development Institute of the General Electric Power Planning and Design Institute, believes that in order to enhance the regulation capacity of the new power system, it is necessary to continue to tap the stock power regulation capacity during the “14th Five-Year Plan” period, and add a batch of system-level flexible regulation power sources to give full play to the demand side. Responsiveness, inter-provincial and inter-regional adjustment of resources and mutual aid.
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