On March 23, the National Development and Reform Commission and the National Energy Administration issued the "Guiding Opinions on Improving the Regulating Capability of Power Systems" to clarify the scientific optimization of power grid construction, increase power flexibility, and accelerate the improvement of power grid regulation capabilities.
The opinion pointed out that exploring the use of electric vehicle energy storage, improving the intelligent level and coordinated control capability of electric vehicle charging infrastructure, strengthening the integration of charging infrastructure with new energy and power grid, and synchronizing the construction through "Internet + charging infrastructure" The charging intelligent service platform actively promotes the two-way interaction between energy and information between electric vehicles and smart grids, and improves the level of charging service.
Establish a technological innovation application system for improving the power system adjustment capability of enterprises, research institutions, and universities. Strengthen the research and development and application of thermal power flexibility transformation technology, and promote the application of energy Internet, smart microgrid, electric vehicle, energy storage and other technologies. Focus on the convergence of power systems and information technology and the reduction of the cost of energy storage technology through technological advancement and large-scale applications.
Guiding Opinions of the National Energy Administration of the National Development and Reform Commission on Improving the Regulating Capability of the Power System
The provinces, autonomous regions, municipalities directly under the Central Government and cities with separate plans, the Xinjiang Production and Construction Corps Development and Reform Commission (Energy Bureau), the Economic and Information Commission (CIC, the Ministry of Industry and Information Technology), the National Energy Administration, each of which dispatches regulatory agencies, State Grid Corporation, China Southern Power Grid Corporation , Huaneng, Datang, Huadian, Guodiantou, Guonengtou Group, SDIC, China Resources Group, China International Engineering Consulting Corporation, Power Planning and Design Institute:
In order to implement the spirit of the 19th National Congress of the Communist Party of China, in accordance with the deployment of the 2017 Central Economic Work Conference, and guided by Xi Jinping’s new era of socialism with Chinese characteristics, we will promote the energy production and consumption revolution, promote the structural reform of the power supply side, and build an efficient and intelligent The power system improves the regulation and operation efficiency of the power system. The following guidance is now proposed:
First, the important significance
The report of the 19th National Congress of the Communist Party of China pointed out that it is necessary to promote the energy production and consumption revolution and build a clean, low-carbon, safe and efficient energy system. The 2017 Central Economic Work Conference proposed to increase the supply of clean electricity and promote the development of green industries such as energy conservation, environmental protection, clean production and clean energy. At present, China's power system adjustment flexibility is lacking, and the power grid dispatching operation mode is relatively rigid. The reality is that the system is difficult to fully adapt to the new situation requirements. It is difficult for large-scale units to take advantage of energy-saving and high efficiency. In some areas, there are more serious abandonment, abandoned light and The problem of water abandonment is highlighted by the contradiction between regional electricity use and heat. In order to achieve the goal of 15% and 20% of non-fossil energy consumption in China in 2020 and 2030 respectively, to ensure the safe supply of electricity and the heat demand of people's livelihood, we must focus on improving the regulation capacity and operating efficiency of the power system, from the load side. The power supply side and the power grid side will take multiple measures to enhance the flexibility and adaptability of the system, solve the problem of new energy consumption and promote green development.
Second, accelerate the promotion of power supply side adjustment capability
(1) Implementing the thermal power flexibility improvement project.
According to the adjustment capacity needs of different regions, scientific implementation of the implementation plan of thermal power flexibility improvement projects in various provinces. During the "Thirteenth Five-Year Plan" period, we will strive to complete the flexible transformation of 220 million kilowatts of thermal power units (including fuel flexibility transformation, the same below), and upgrade the power system adjustment capacity of 46 million kilowatts. Priority will be given to improving the peak peaking capacity of the 300,000-kilowatt coal-fired power unit. The minimum technical output of the modified pure condensing unit reaches 30%~40% of the rated capacity, and the minimum technical output of the combined heat and power unit reaches 40%~50% of the rated capacity; some power plants reach the international advanced level, and the unit does not supply oil and stabilizes the combustion. The minimum technical output of working conditions is 20% to 30%.
(2) Promote various types of flexible adjustment power supply construction.
Accelerate the construction of pumped storage power stations recommended by the selected point selection plan, launch a new round of point selection planning in a timely manner, and accelerate the construction of the leading reservoir power station in the southwest region. During the “Thirteenth Five-Year Plan†period, the construction of a 60 million kilowatt pumped storage power station and the Jinsha River middle reaches leading reservoir power station will be started. By 2020, the installed capacity of pumped storage power stations will reach 40 million kilowatts (including 11.4 million kilowatts in the “Three North†area), effectively improving the power system regulation capability.
In the areas where the gas source is guaranteed and the peaking demand is outstanding, the gas units of a certain scale will be developed to start and stop peaking. During the “13th Five-Year Plan†period, the newly-added peak-to-peak gas power will be 5 million kilowatts, and the power system adjustment capacity will be increased by 5 million kilowatts. .
Actively support solar thermal power generation, promote industrialization development and large-scale application. During the "13th Five-Year Plan" period, solar thermal power generation capacity will strive to reach 5 million kilowatts, and the power system adjustment capacity will be 4 million kilowatts.
(3) Promoting the development and application of new energy storage technologies.
Accelerate the research and development of new energy storage technologies, focusing on innovation and promotion of large-capacity liquid flow, lithium ion, sodium sulfur, lead carbon battery and other electrochemical energy storage batteries, compressed air energy storage, etc., to improve the conversion efficiency of new energy storage systems And service life. In the areas where the peaking and frequency modulation needs are large, and the winds and abandoned light are prominent, combined with the construction progress of the power system auxiliary service market, a number of centralized new energy storage power plants with an installed capacity of over 10,000 kilowatts will be built and deployed in the “Three North†area. Demonstration project of a 100 megawatt electrochemical energy storage power station. Pilot work on building energy storage facilities for wind power and photovoltaic power generation projects. Encourage distributed energy storage applications. By 2020, a number of pilot demonstration projects of different technology types and different application scenarios will be built.
Third, scientific optimization of power grid construction
(4) Strengthen the coordinated development of power supply and power grid.
Adhering to market demand-oriented, in the process of determining power supply planning and annual implementation plan, the relevant parties will determine the power consumption market and power transmission direction, simultaneously formulate access to the power grid plan, and clarify the construction timing. According to different power generation types and construction period of power grid projects, the approved construction progress of power supply and supporting power grid projects should be reasonably arranged to ensure simultaneous implementation of simultaneous planning and simultaneous production to avoid investment waste.
(5) Strengthening the construction of power grids.
Strengthen the construction of power grids in key areas of new energy development and solve the problem of restricted delivery. Implement the key transmission channels identified in the 13th Five-Year Plan for Power Development. During the 13th Five-Year Plan period, 19 new inter-provincial cross-regional channels will be added, with an additional transmission capacity of 130 million kilowatts to absorb new energy and energy. Renewable energy is about 70 million kilowatts. Further improve the main grid of the regional transmission network and promote the coordinated development of power grids of various voltage levels.
Carry out construction and transformation of distribution network, promote the construction of smart grid, meet the needs of distributed power access, and comprehensively construct a modern power distribution system. According to the differentiated demand, improve the level of informationization and intelligence, improve the “N-1†pass rate of the high-voltage distribution network, strengthen the line contact rate of the medium-voltage distribution network, and improve the distribution automation coverage.
(6) Enhance the adaptability of the receiving power grid.
Carry out special technical research, develop interruptible loads such as micro-grid, solve the problem of long-distance, large-capacity cross-region DC transmission blocking failure affecting the safe and stable operation of the receiving end, improve the adaptability of the receiving power grid, and meet the reliability of the power supply of the receiving end.
Fourth, improve power user side flexibility
(7) Develop various types of flexible electrical loads.
Promote the reform of the power-selling side, and guide the users to use the peak power through the price signal to achieve a fast and flexible demand side response. Conduct demonstrations of power demand response and user interaction projects in smart communities and smart parks. Conduct pilot projects for energy efficiency power plants. Encourage all types of high-energy-consuming enterprises to improve processes and production processes, and provide auxiliary services such as interruptible load and controllable load for the system. Fully promote the replacement of electric energy. By 2020, the replacement of electricity by electric power will reach 450 billion kWh, and the proportion of electric energy in terminal energy consumption will rise to 27%. In the new energy-rich areas, we will focus on the development of flexible power loads such as heat pump technology heating and regenerative electric boilers, and encourage the promotion and application of interruptable electric hydrogen production, electric gas conversion and other related technologies.
(8) Improve the intelligent level of electric vehicle charging infrastructure.
Exploring the use of electric vehicle energy storage, improving the intelligent level and collaborative control capability of electric vehicle charging infrastructure, strengthening the integration of charging infrastructure with new energy and power grids, and simultaneously building charging intelligent services through “Internet + charging infrastructure†The platform actively promotes the two-way interaction between energy and information between electric vehicles and smart grids, and improves the level of charging service.
V. Strengthen the flexibility of power grid dispatching
(9) Improve the intelligent level of power grid dispatching.
Construct a multi-level intelligent power system scheduling system. Optimize the boot mode and determine a reasonable backup rate. Carry out special research on wind power and solar ultra-short-term high-precision power forecasting, high-permeability new energy access to grid operation control, etc., and increase the proportion of new energy power generation participating in intraday power balance. Implementation of wind power forecasting and assessment, wind power, photovoltaic and other generator sets into the power auxiliary service management, to undertake the corresponding auxiliary service costs, to achieve full coverage of the generator set dispatched by the provincial and above power dispatching agencies. The pilot area of ​​the power auxiliary service market reform approved by the National Energy Administration will be implemented in accordance with the approval plan. Improve the rolling adjustment mechanism of the intraday power generation plan. The dispatching agency dynamically adjusts the power generation plans of various regulated power sources and the transmission power of inter-provincial cross-links according to the short-term and ultra-short-term power forecasting information.
Exploring the electric power combined with intelligent dispatching mechanism, establishing a real-time monitoring system for thermal Power Plant thermal load in the dispatching organization, and determining the generating curve of the generating unit according to the actual thermal load demand. Research and develop an intelligent scheduling mechanism after access to flexible heat sources such as heat storage devices and electric heating boilers.
(10) To play the role of regional power grid regulation.
Establish a flexible adjustment mechanism for the conventional power generation plan, and share peak shaving and backup resources in each regional power grid. Study the optimization of the startup mode in the regional power grid to enhance the space for new energy generation. In the area where new energy is sent out, special research on dynamic transmission capacity application is carried out.
(11) Increase the proportion of new energy transported across the district.
Optimize the operation mode of transmission channels across provinces across provinces. Adjust and slow down the trans-regional transmission channel for supporting thermal power construction, and prioritize the allocation of new energy to the surplus capacity, and strive to eliminate more than 40 million kilowatts of renewable energy across the region during the “13th Five-Year Plan†period. The receiving provinces where hydropower and wind power transmission channels are simultaneously fed should study the coordination and coordination mode of hydropower and wind power transmission curves, give full play to the complementary benefits of wind power and hydropower, and increase the proportion of wind power in wind power channels.
Sixth, to improve the key technical level of power system regulation
(12) Improve the level of efficient and intelligent equipment.
Relying on basic research and engineering construction, the organization will promote the technical research, demonstration and promotion of key equipment for power system regulation. Break through a number of technical researches on restrictive or bottleneck technical equipment and parts, promote a batch of key technical equipment that has completed technical research, carry out trial and demonstration, further verify the technical route and economy, and promote the realization of a batch of technical equipment to complete the test and demonstration. Mass production and industrial applications.
(13) Upgrade the energy equipment industry system.
In the field of power equipment, a group of equipment manufacturing enterprise groups with independent intellectual property rights and strong competitiveness have been formed to form a relatively complete industrial system with comparative advantages and an independent innovation system that combines production, education and research, and has a strong international competitiveness. To achieve the transformation and upgrading of the energy equipment manufacturing industry.
(14) Strengthening innovation and promoting the application of new technologies.
Establish a technological innovation application system for improving the power system adjustment capability of enterprises, research institutions, and universities. Strengthen the research and development and application of thermal power flexibility transformation technology, and promote the application of energy Internet, smart microgrid, electric vehicle, energy storage and other technologies. Focus on the convergence of power systems and information technology and the reduction of the cost of energy storage technology through technological advancement and large-scale applications.
Seven, establish a sound support system
(15) Improve the compensation (market) mechanism for power auxiliary services.
In accordance with the principle of “who benefits and who bearsâ€, explore the establishment of a shared service sharing mechanism for power generation enterprises and users. Further improve and deepen the power-assisted service compensation (market) mechanism, realize the scientific compensation of power-assisted service, reasonably determine the peak-shaving depth of the thermal power unit's compensated peak-shaving, and dynamically adjust according to the change of the system's adjustment capability, and reasonably compensate the thermal power unit, Direct and opportunity costs for flexible operation of pumped storage power plants and new energy storage power plants. Encourage the use of competitive methods to determine the power auxiliary service to undertake the unit, encourage automatic power generation control and peak shaving services to compensate for the effect, encourage energy storage equipment, demand side resources to participate in the provision of power auxiliary services, and allow third parties to participate in the provision of power auxiliary services.
(16) Encourage social capital to participate in the power system adjustment capability improvement project.
Support social capital to participate in the transformation of thermal power flexibility, as well as the construction of various peaking power supplies and large-scale energy storage power stations. Support local development of diversification and operation mode of investment mains of pumping storage power stations. Encourage the construction and operation of power storage and energy storage facilities in power plants through third-party investment models such as contract energy management. The electric heating energy storage facilities built by the thermal power plant in the metering exit shall be managed according to the system peaking facilities and provide reasonable economic compensation for their contribution to the deep peak shaving. The electricity consumption shall be calculated according to the power consumption of the plant but not counted in the factory. Electricity.
(17) Accelerate the construction of the electricity market.
Accelerate the construction of the electricity market, substantially increase the proportion of electricity market transactions, and establish a market-oriented institutional system to promote new energy consumption. Gradually establish a combination of the medium and long-term market and the spot market, and release the system flexibility through the elastic electricity price mechanism. The study uses market mechanisms to support policies such as energy storage and flexible regulation of power supply development, and fully reflects the capacity value of regulating power supplies. Before the establishment of the power spot market, the power system adjustment balance was supported by price mechanisms such as peak and valley electricity prices and time-sharing electricity prices. Vigorously promote the reform of the power sales side, encourage sales companies to develop flexible electricity prices, and promote the interaction between power consumers and producers. Focusing on winter clean heating in the northern region, wind power companies and heating companies are encouraged to participate in power market transactions, and to explore sustainable development mechanisms benefiting from the network, source and source.
(18) Establish a standard system for upgrading the power system adjustment capability.
Carry out standard formulation and revision work on the improvement of power system regulation capabilities. The existing thermal power plant technical standards were revised, and the new coal-fired power in the “Three North†area reached the corresponding flexible operation standard, and the new thermal power unit realized the “thermal electro-coupling†technical requirements. Research and develop new energy storage technologies and related standards for intelligent management on the demand side. Drawing on the advanced experience of the flexible operation of the international power system, we will promote the international exchange and cooperation of technical standards for the improvement of power system regulation capabilities.
Eight, according to the division of responsibilities, pay close attention to the organization and implementation
(19) Strengthen organizational leadership.
The National Development and Reform Commission and the National Energy Administration have taken the lead in carrying out power system regulation capacity improvement projects and supervision related work to coordinate and solve major problems. The relevant competent departments of the provincial people's governments shall study and formulate the implementation plan of the power system adjustment capacity improvement project of the province (autonomous region, municipality) according to local conditions, and incorporate the power system adjustment capability enhancement effect into the energy conservation and emission reduction assessment system. The power spot market construction pilot area can be combined with the market design plan to design a scheduling mechanism to improve the power system adjustment capability and operational efficiency. Each power grid enterprise and power generation enterprise is the main body of implementation to improve the power system regulation capability. It is necessary to actively formulate implementation plans, implement project funds, and promote project construction. The National Energy Administration's energy regulatory agencies and local energy authorities are responsible for the specific supervision of the power system adjustment capacity improvement project. The National Energy Administration's energy regulatory agencies are responsible for organizing local power auxiliary service compensation (market) work and daily affairs. Coordinated processing. All units shall, in accordance with the relevant requirements of the guidance, plan, coordinate and cooperate scientifically, and carry out relevant work in a pragmatic and orderly manner.
(20) Strengthen supervision and management.
The National Energy Administration dispatched energy regulatory agencies to carry out special supervision with the local energy authorities on the power system regulation capacity improvement project. For provinces where the overall implementation of the implementation plan is not in place, it will reduce its power construction indicators such as new energy. Projects that have enjoyed the relevant preferential policies but have not achieved the actual operational results will be announced to the public and the relevant preferential policies will be cancelled according to the circumstances. For a thermal power unit that has been included in the scope of flexibility transformation, if it fails to complete the transformation on time or fails to achieve the required adjustment effect, it will temporarily reduce its planned power generation. The National Energy Administration will conduct an evaluation and assessment of the progress of the national power system adjustment capacity improvement project on an annual basis.
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