"Intensify efforts to promote the construction of ecological civilization, solve the problems of ecological environment, resolutely fight the battle against pollution, and promote the construction of China's ecological civilization to a new level." May 18-19, National Ecological Environmental Protection Conference, General Secretary Xi Jinping Make important arrangements for the construction of ecological civilization.
The report of the 19th National Congress of the Communist Party of China put forward the overall strategic deployment of promoting a revolution in energy production and consumption, building a clean, low-carbon, safe and efficient energy system, and building a beautiful China. State Grid Corporation resolutely implements the "four revolutions, one cooperation" energy strategy, conscientiously implements national deployment, comprehensively implements policies, gives full play to the role of the power grid in the allocation of energy resources, and promotes new energy quality and sustainable development. Serve the power of the national network in the overall situation of serving the construction of ecological civilization.
Practice the concept of green development and become the pioneering force leading the energy revolution
Since the 18th National Congress of the Communist Party of China, the construction of ecological civilization has been integrated into the overall layout of the "five in one" of socialism with Chinese characteristics, and the concern for environmental protection has risen to a new height. With the socialism with Chinese characteristics entering a new era, the main contradictions in our society have undergone new changes, and the people's demand for high-quality ecological products and excellent ecological environment has become more and more urgent.
As the vanguard of the central enterprises, the company is keen to grasp the profound impact of the new era and new contradictions on the power grid, uphold the concept of green development, base on the national conditions and the trend of world energy reform, and promote the construction of power grids at all levels, improve the market-oriented trading mechanism, and maximize the supply of green power. And consumption, promote the green development of itself, industry and society, and actively become the model for promoting the revolution of energy production and consumption.
Shu Yinbiao, chairman of the company, proposed to implement “re-electrificationâ€, which is reflected in the large-scale development and utilization of renewable energy in the energy production process, and the terminal consumption segment is reflected in the deep substitution of electric energy for fossil energy. With the large-scale development and utilization of new energy as a symbol, the new round of energy revolution with re-electification as the fundamental path is developing in a global scale. The grid is connected to energy production and consumption. It is a network hub for energy transmission and conversion, and is at the center of the energy revolution.
Based on its own advantages, the company firmly grasps the main line of “electricity as the center and two alternativesâ€, accelerates the re-electrification process, and actively promotes the construction of domestic power grids. It has built the world's strongest transmission capacity, the highest level of safety, and the largest installed capacity of new energy sources. Grid. Building an energy Internet based on a strong smart grid, ubiquitous interconnection, coordinated interaction, and smart and friendly, ensuring flexible access to various energy production entities and energy-using equipment, meeting the diversified and individualized needs of users, deepening the process of re-electrification, and actively Promote green clean development.
At the same time, the company strives to be the model for energy conservation and emission reduction, building green institutions, and advocating green office, travel and lifestyle. Actively promote energy conservation and emission reduction of the grid. As of 2017, the EIA rate of the company's power grid construction projects has remained 100% for nine consecutive years; in 2017, 70 tons of sulfur hexafluoride gas was treated, equivalent to 1.475 million tons of carbon dioxide emissions. The company also actively contributes to social energy conservation and emission reduction. Taking the State Grid Integrated Energy Service Company as the main body, focusing on parks, industrial enterprises, public buildings, etc., integrating resources, coordinating energy efficiency diagnosis and monitoring, energy-saving renovation, cooling and heating, triple-supply, energy storage And other technologies to meet customers' demand for various energy services such as electricity, gas, cold and heat.
Tianjin Quanyun Village is one of the typical examples of the company's service ecological smart city construction. Here, a multi-energy acquisition system integrating five types of energy sources: tap water, water, gas, heat and electricity has been established to achieve a comprehensive energy collection rate of 100%. The green travel coverage is comprehensive, and the “0.9 km†radius charging service circle is realized in the National Games Village to meet the residents' green travel demand. The 5,400 households in the park have fully realized the “one-stop†collection, inquiry and payment service for multiple energy sources.
In addition, the company cooperates with upstream and downstream partners to jointly promote the green development of the power industry and serve the transformation of low-carbon economy. The company built a smart car network. By the end of 2017, the smart car networking platform had accumulated 170,000 charging stations. By promoting green procurement and sourcing high-efficiency and environmentally-friendly products, and promoting the energy equipment industry to improve energy conservation and environmental protection and localization rate, the company and power equipment manufacturers jointly develop UHV key equipment, develop energy-saving and environment-friendly technologies, and promote electric power. Independent innovation of the core technology of the equipment industry, promote the green transformation of development mode, and serve the construction of ecological civilization.
Accelerate the construction of UHV to make clean energy transmission unimpeded
In China, green development is accelerating. “In the past five years, China’s ecological environment has changed in a positive direction. This change is amazing, and its speed is also the fastest in human history.†UN officials lamented the party’s eighteen Great achievements in China's green development.
The data is a strong proof. Taking new energy development as an example, as of the end of 2017, the cumulative installed capacity of new energy power generation in China was 293.39 million kilowatts, accounting for 17% of the national power supply capacity; the newly installed capacity of new energy power generation was 68.09 million kilowatts, accounting for the new installed capacity of power supplies nationwide. 52%.
The growth of large-scale new energy installations puts higher demands on the energy system. Whether it is new energy generation or an increase in the proportion of consumption, it is inseparable from a UHV large power grid that is safe, green, efficient and has a balance adjustment capability.
The UHV power grid is linked to the development and utilization of clean energy in the northwest of the country. It is connected to the clean development of the central and eastern regions and has become the strategic focus of the country's clean energy development. It takes only 0.008 seconds, and clean energy such as wind power and solar power from Gansu can be sent to Xiangtan Converter Station in Hunan. This is the amazing strength of the UHV ±800 kV DC transmission technology that won the special prize of the 2017 National Science and Technology Progress Award.
While optimizing the allocation of energy resources, UHV power grids have begun to show signs of energy conservation and emission reduction and environmental protection. In September 2013, the State Council issued the Action Plan for Air Pollution Prevention and Control. In order to implement the plan, the National Energy Administration approved 12 transmission projects in 2014. After all efforts, in 2017, the National Air Pollution Prevention and Control Action Plan UHV AC and DC project was completed, and 8 UHV projects were built by the company. At the same time, in order to solve the problem of clean energy delivery in Gansu and the “dwelling power†in Northeast China, the company actively promoted the construction of two UHV DC projects in Jiuquan-Hunan and Zalut-Qingzhou.
The total investment of the above 10 UHV projects is 220 billion yuan, passing through 16 provinces (autonomous regions and municipalities). After being fully completed and put into operation, it is expected to increase the power capacity of the eastern and central regions by 80 million kilowatts, reduce the coal-fired transportation by 18,000 tons per year, and reduce the PM2.5 concentration by 4% to 5%. These UHV projects from the west to the east send 80% of the electricity from clean energy, which has significant comprehensive benefits and long-term strategic significance for promoting energy transformation and green development, ensuring power supply, and stimulating economic growth.
Clean energy development must be equipped with transmission channels of corresponding scale to ensure smooth access to the power grid. In addition to accelerating the construction of UHV power grids, the company has also strengthened the construction of new energy grids and projects, and promoted provincial and inter-provincial trans-regional transmission projects. In 2017, the State Grid's 750 kV and below new energy grid-connected and transportation projects invested a total of 9.5 billion yuan, built a new energy grid and sent 2,742 kilometers, meeting 5,426 new energy power generation projects connected to the grid and the province. need. Only the 500 kV power transmission and transformation project of Minghai Lake in Shanxi Province has access to wind power installed capacity of 700,000 kilowatts, effectively alleviating the problem of wind power blockage in Chenzhou and reducing the wind power of 400 million kilowatt hours.
Propulsion of electric energy replaces the smell of soot and has a strong sense of well-being
At the same time as the clean development of the energy production side accelerates development, a revolution in the field of energy consumption – the replacement of electric energy is in full swing. At present, electric energy replacement has become an important starting point for China to prevent and control air pollution, improve environmental quality, and adjust energy structure. As early as 2016, General Secretary Xi Jinping emphasized that it should be based on the principle that enterprises are the mainstay, the government promotes, and the residents can afford. It is better to use gas, electricity, electricity, use clean energy as much as possible, and speed up the proportion of clean heating.
The company actively implements national deployment, vigorously carries out electric energy substitution work, increases the proportion of electric energy in terminal energy consumption, and promotes electric energy substitution work in various fields such as clean heating and port shore power, and enhances people's life happiness. The chairman of the company, Shu Yinbiao, put forward the request to conscientiously study and thoroughly implement Xi Jinping's ecological civilization thoughts, with a strong mission responsibility, make persistent efforts, and meet difficulties, and make greater contributions in serving the ecological environment protection and winning the battle against pollution.
Zhang Daye from Zhang Laoying Village, Yanqing District, Beijing, experienced the benefits of “coal to electricityâ€. Zhang Daye’s family adopted the distributed photovoltaic power generation and carbon board heating method promoted by the company. "The board on the roof can generate electricity, and the electricity can be sold to the power supply company!" The end of the heating season on March 15th, Zhang Grandpa even started the account: not only did not spend money during the entire heating season, but also earned 805 yuan. After the implementation of the "coal to electricity" project, the 2017 heating season in Beijing reduced the emissions of loose coal by 4.15 million tons and carbon dioxide emissions by 10.79 million tons.
In the remote Qinghai Mado, the fragile ecology of high altitude and high cold forces people to say “no†to coal heating. In November 2017, the teaching building of the National Boarding School in Maduo County was warm and warm, and the thermometer pointer in the classroom pointed to 21 degrees Celsius. “The classrooms and dormitories are now very warm and very comfortable.†Renqing, a class 7 student in the 7th grade Zhuoma is very happy. These changes benefited from the company's first high-altitude and high-altitude clean heating project in Maduo, and the original coal-fired boiler in Maduo County became a new energy-saving electric boiler, and plans to promote it in Maduo County. According to estimates, after all the cleaning and heating projects in Maduo County are put into operation, they can replace 27,800 tons of standard coal, 18,900 tons of carbon emissions, 69,400 tons of carbon dioxide emissions, 0.21 million tons of sulfur dioxide emissions and 0.1 million tons of nitrogen oxides. .
Increasing the proportion of electrical energy in the terminal energy brings with it the concept of clean energy, and also provides a solution for the coordinated development of economy and environment.
On the morning of April 19, after the Xiamen University Jiageng scientific research ship returned to Hong Kong, the fuel generator on the ship was shut down and the high-voltage shore power supply was used instead. The tranquility of the port is in harmony with the blue sky and white clouds. The electrification transformation is accelerating in Fujian, and the Pingtan Comprehensive Experimental Zone – the country's first low-carbon, high-efficiency and ecological whole electrified island construction is also underway. The goal is to achieve the island's public service and tourism service facilities by 2020. The electric energy is completely replaced, and the utilization rate of clean energy in the fields of eating, living, traveling, and music is 95%.
In recent years, the company has actively promoted oil-to-electricity reform in the terminal energy fields such as airports, ports, and machine well irrigation, and implemented “two vertical and one horizontal†port shore power projects along the coast, the Beijing-Hangzhou Grand Canal, and along the main channel of the Yangtze River. From 2016 to 2020, it is planned to replace 580 billion kWh of electricity.
Accelerate the construction of a unified national electricity market to promote clean energy consumption
In June 2017, one thing happened in Qinghai that the world was amazed. The company carried out 168 hours of clean energy supply in Qinghai, with a total electricity consumption of 1.18 billion kWh, of which hydropower accounted for 72%, new energy accounted for 28%, and new energy power generation accounted for up to 93% of real-time load, creating a new world record. National leaders highly affirmed the pioneering practice of Qinghai. The National Development and Reform Commission, the National Energy Administration and other relevant provincial agencies and major research institutions have successively conducted research in Qinghai and gave high praise. In China, the pace of development of clean energy is accelerating, but it will still face the long-term test of abandoning wind and abandoning light. The practice in Qinghai has undoubtedly injected confidence into everyone.
In 2017, China's new energy consumption improved significantly, and the growth momentum of abandoned wind and light was curbed. The national power grid operating area consumed 323 billion kWh of new energy throughout the year, up 40.4% year-on-year, and abandoned electricity dropped by 11.3% year-on-year. The rate dropped by 5.3 percentage points year-on-year, and the “disappearance†was achieved by abandoning power and abandoning the rate.
The achievement of the results comes from the company's many years of practice. In recent years, the company has resolutely implemented the spirit of the important directives of the central government, introduced 20 measures to promote the consumption of new energy, and played the role of grid resource allocation and trading platform. The Beijing Electric Power Trading Center and the relevant provincial power trading center actively adopted a market-based trading mechanism to implement 10 relevant market-oriented trading varieties that promote clean energy consumption.
At present, the national-level Beijing power trading platform and 27 provincial-level power trading platforms have been completed, providing technical support for large-scale consumption of new energy. Relying on the big platform, in 2017, within the company's operating area, the inter-provincial transaction of new energy was completed 49.2 billion kWh, a year-on-year increase of 36%. The “Three North†region increased the consumption of new energy by 6.19 billion kWh by strengthening inter-provincial transactions. The company also innovated new energy market-based trading methods. In 2017, it used the Central China Power Grid pumped-storage power station to cut peaks and fill the valley. The province consumed 240 million kWh of new energy in the northwest low valley; completed the new energy inter-provincial power generation trading volume of 340 million. Kilowatt hours. Actively responding to government requests, serving "Power Assistance to Xinjiang", organized 89 batches of "Power Assistance to Xinjiang + Marketization" outbound transactions, including 2.1 billion kWh of new energy.
While expanding the market through power trading, the company continued to improve the grid balance capability, implement unified dispatching of the whole network, promote the liberalization of thermal power generation plans, deepen the potential of thermal power peaking, maximize the use of pumped storage power stations, implement regional rotating reserve sharing, and strengthen Inter-provincial power grids adjust their peaks and balance each other and do their utmost to absorb new energy.
On March 5, the total output of Jiangsu Power Grid's new energy power generation exceeded 10 million kilowatts for the first time, reaching 12.462 million kilowatts, accounting for one quarter of the province's scheduled power generation at that time, higher than the average daily output of new energy power generation 4.4 times, and last year. Compared with the same period, the growth rate was 294%. Jiangsu Power Grid did not waste a new energy power generation. This bottom gas originated from the new energy power generation data center built by Jiangsu Electric Power Control Center. The staff estimated in advance that the output of wind power and solar energy will be greatly improved through the system, and the previous day predicted that the new energy power generation load will break 10 million kilowatts. The center timely adjusted the traditional thermal power generation plan, prioritized new energy generation, and arranged the pumped storage unit to cooperate with the operation, finally achieving safe and stable operation of the power grid, and no abandonment of wind and light.
Through new mechanisms such as cross-provincial spot trading and peaking auxiliary service market, the company has explored a new way to eliminate clean energy through marketization, and accumulated valuable experience for optimizing the allocation of clean energy in a wider range.
The construction of ecological civilization is a fundamental plan for the sustainable development of the Chinese nation. The new era calls for new actions. The company will thoroughly implement Xi Jinping's new era of socialism with Chinese characteristics, continuously improve its technological capabilities, accelerate market transformation, and serve the construction of ecological civilization, making China's land more blue, greener, clearer, and more environmentally friendly. More beautiful, contributing more to the grand goal of building beautiful China.
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