The new power system is an important carrier for building a new energy system and is related to the long-term guarantee of the economy and people's livelihood. This year's "Government Work Report" proposes to further promote the energy revolution, control fossil energy consumption, and accelerate the construction of a new energy system.
Recently, the work of optimizing the power system has continued to deepen. Following the release of the "Guiding Opinions on the High-Quality Development of Distribution Networks under the New Situation" at the beginning of the month, the National Energy Administration organized a one-year special project on power construction safety and engineering quality nationwide. supervisory work.
Actively building a new power system will help energy and electricity play a greater role in stimulating new productivity and promoting the new industrialization process. In an interview with People's Daily Online, many experts said that clean energy should be developed according to local conditions, and the market mechanism should be improved to scientifically ease the cost of energy transformation. At the same time, we should actively promote the high-quality development of power infrastructure, improve the power grid resource allocation capabilities, enhance disaster prevention and resilience, and build a Secure energy security and power foundation.
Smart upgraded power grid safety operation level continues to improve
In recent years, the construction of modern smart distribution networks has increasingly become an important new infrastructure for building new power systems and optimizing the safety and supply of power. Hangzhou, Zhejiang Province, has created innovative applications such as the distribution network AI dispatcher and the "Resumption of Work and Production Power Index"; Xiamen, Fujian Province has introduced intelligent safety applications to shorten the load voltage drop period from more than 24 hours to as fast as 3 minutes; Shijiazhuang, Hebei Province has built innovative applications in the core urban area The zero-perception demonstration area for power grid maintenance realizes rapid location, isolation and automatic recovery of feeder faults within 300 milliseconds...
"The new generation of digital technology has smooth connections, enabling comprehensive perception, accurate analysis and intelligent regulation of the traditional power grid, and connecting the whole 'source, grid, load and storage' link." The relevant person in charge of China Southern Power Grid said that the digital grid can connect and control through ultra-large-scale information Intelligent data processing accurately predicts and schedules power generation and electricity loads to ensure safe and stable operation of the system.
During critical periods of ensuring power supply such as heavy rains in summer and cold waves in winter, smart grids play an active role in the monitoring and maintenance of power systems. State Grid Xuzhou Power Supply Company builds a self-healing distribution network, using artificial intelligence and cloud computing technology to achieve automatic fault detection, diagnosis and isolation. Through intelligent solution generation, the system can restore power remotely and ensure normal power consumption for users.
Experts in the industry suggest that an action plan for the construction of a digitally intelligent and strong power grid should be scientifically formulated and incorporated into the energy planning and information planning of each province, to coordinate the construction of energy, power infrastructure and information infrastructure, and to promote large power grids, distribution networks, and microgrids. The organic connection of various forms such as power grids will improve the power grid's ability to respond quickly, prevent and resist disasters, and be autonomous and self-repairing.
With the rapid increase in the proportion of new energy installed capacity, the problems of randomness and volatility in power generation have prompted many places to develop energy storage and regulating power supplies to participate in power grid operations, improving the level of new energy consumption and utilization, capacity support capabilities and network-related security performance.
Tao Ye, deputy director of the Renewable Center of the Institute of Energy, China Academy of Macroeconomics, said that in recent years, my country's new energy storage has vigorously promoted the construction of new infrastructure, and the addition of new energy storage capacity has effectively promoted economic investment. He said that in building a new power system with new energy as the core, new energy storage can play multiple roles such as peak shaving and valley filling, enhancing grid stability and emergency power supply.
"In the future, my country's new energy storage can participate in the power market and spot market transactions in a variety of ways. The increasingly perfect business model will promote new energy storage to more accurately match the power system regulation needs." Chen Man, deputy secretary-general of the National Electric Power Storage Standardization Technical Committee explain.
Clean, low-carbon and accelerate the establishment of new power systems
In recent years, the power system has been continuously adjusted and transformed, and new power entities such as energy storage, electric vehicles, virtual power plants, load aggregators, and data centers have entered the market. How to improve the actual benefits of new energy system applications has become the key to ensuring its sustainable development. factor.
Chongqing AI city park, which gathers a large number of enterprises in emerging industries, has achieved self-sufficiency in power and energy in the park. By deploying a variety of distributed photovoltaic smart equipment and smart systems, it supports users' private power needs in terms of car charging piles, USB mobile phone charging devices, etc., and real-time intelligent adjustment of the park's public power supply, saving 60% of energy costs. Labor cost 50%.
Accelerating the construction of a market mechanism that adapts to the new energy system not only involves creating an effective new power system business model based on the original industry, but also fundamentally mobilizing new energy to participate in market transactions in an orderly manner.
Experts in the industry said that the energy and electricity price formation mechanism and the ancillary service cost guidance mechanism should be improved, focusing on rationally guiding the construction and operation costs of the power grid through power transmission and distribution prices, guiding the costs of coal power, gas power, pumped storage and other units through capacity prices, and accelerating the improvement of prices. Transmission mechanism to promote safe supply and green transformation, and further play the positive role of the market in optimizing resource allocation and ensuring supply and stabilizing prices.
As my country's energy low-carbon transformation continues to deepen, green electricity trading volume continues to grow. Not long ago, multiple departments jointly issued the "Notice on Strengthening the Alignment of Green Power Certificates and Energy Saving and Carbon Reduction Policies to Vigorously Promote Non-Fossil Energy Consumption", which included the electricity corresponding to green certificate transactions into the "14th Five-Year Plan" provincial government energy-saving target responsibility assessment indicators. accounting.
Data show that in 2023, the national electricity market-based trading electricity accounted for 61.4% of the total social electricity consumption, an increase of 0.6 percentage points from the previous year. Among them, in 2023, the market-based transaction volume of new energy will be 684.5 billion kilowatt-hours, accounting for 47.3% of the total new energy power generation.
"The scale of my country's green power trading continues to expand, and market construction is further accelerated, which is conducive to the construction of a new power system." Bai Weiguo, director of the Industrial Green Development Research Department of the China Urban Economics Society, said that it is necessary to further improve green power trading, green certificate trading and carbon trading. The market mechanism should be connected to give full play to the role of price signals. At the same time, we should explore extending the responsibility for renewable energy power consumption from administrative regions to major high-energy-consuming enterprises, and improve relevant standards for new production capacity.
Multi-party collaboration to improve basic public electricity services
In recent years, precise implementation of power grid consolidation and upgrading work has gone deep into rural areas, improving villagers' sense of well-being. 43 digital-intelligent "six good" power supply stations, 89 "power stations", 312 power convenience service points... Hangzhou Power Supply Company has long been exploring new rural power models, innovatively researching and developing power sharing meter boxes, and developing "power care" "Ma" elderly care and guardianship services, etc., have made the quality of electricity used by surrounding villagers in their production and life higher and higher, and it has become more convenient to use electricity.
From access to electricity to good use of electricity, the "Thousands of Villages and Villages Control the Wind Action" and the "Thousands of Households Mighty Light Action" help IKEA and IKEA, providing a solid power service foundation for rural revitalization. On the roof of Tancun Village in Wuxi, Jiangsu, 189.3 kilowatts of distributed photovoltaic panels are spread out in a row. State Grid Wuxi Power Supply Company monitors and analyzes the energy consumption in various areas of Tancun. By using energy group control and group regulation technology, the village’s industries Use more stable and green energy services at a lower cost.
Modern urban construction is inseparable from high-quality power supply services. From Guangzhou building the country's first municipal public infrastructure "six joint office" services to Shenzhen's industrial park power supply environment upgrades that save customers more than 4 billion yuan in electricity costs every year, Guangdong, which insists on being dominated by manufacturing, continues to optimize urban residents and Satisfaction with power supply services produced by enterprises.
"The electric power industry is an important part of the national economy, and the electric power business environment is one of the important forces supporting high-quality development." Experts said that efforts should be made to optimize the efficiency of regulation on the supply side, demand side and transmission side to assist advanced manufacturing, digital High-quality development of technology and other emerging industries.
"This new type of power load management system is adapted to the utilization of distributed load resources such as photovoltaic power generation and new energy vehicles. It can accurately measure the load baseline level and adjustable potential of electricity, and when the power consumption with large deviations in the estimate occurs, Early warning." Staff from State Grid Tianjin Electric Power said that they support the diverse power resource needs of local enterprises, build a simulation environment for smart energy use and energy efficiency services, develop data models, realize the issuance of control instructions in seconds, and provide "one household, one characteristic" Refined energy usage suggestions.
"Constructing a new power system is a complex and arduous system project." The relevant person in charge of the National Energy Administration said that in the context of the large-scale development of new energy, it is currently and in the future to achieve optimization of the power system and reasonable and stable costs. The focus of our work requires scientific coordination of the relationship between energy security, greenness, and economy. (People's Daily Online)