2021-10-11161 have been browsing
On May 29, the State Grid Corporation of China officially signed the agreement on “Transferring Power from Tibet into Chongqing”. The “Tibetan Electricity to Chongqing” agreement is the largest agreement for the delivery of Tibetan electricity to Chongqing. From 2018 to 2020, 1.63 billion kWh of clean electricity from Tibet will be delivered to Chongqing for consumption through the UHV line standing on the Qinghai-Tibet Plateau.
The integration of Tibetan electricity into Chongqing is an important measure for the State Grid to implement the concept of large aid to Tibet, promote the development of clean energy and protect the ecological environment. As the vanguard of a central enterprise, State Grid has always adhered to the concept of green development, serving ecological civilization with practical actions, and building a beautiful China.
Practice the concept of green development and be a pioneer in leading the energy revolution
At present, a new round of energy revolution, marked by the large-scale development and utilization of new energy and with re-electrification as the fundamental path, is developing in depth around the world. Based on the national conditions and the world’s energy transformation trends, State Grid will coordinate and promote the construction of power grids at all levels, improve the market-oriented trading mechanism, maximize the supply and consumption of green power, promote the green development of itself, industry and society, and actively become a leader in promoting the revolution of energy production and consumption. example. Chairman Shu Yinbiao proposed to vigorously implement “re-electrification”, that is, the large-scale development and utilization of renewable energy in the energy production link, and the deep substitution of electric energy for fossil energy in the final consumption link. Based on its own advantages, State Grid firmly grasps the main line of “electricity as the center and two alternatives”, accelerates the process of re-electrification, actively promotes the construction of domestic power grids, and has built the world’s strongest power transmission capacity, the highest level of safety, and the installed capacity of access to new energy. largest grid.
While carrying out power grid construction, State Grid actively promotes energy conservation and emission reduction in the power grid. As of 2017, the EIA rate of State Grid power grid construction projects has remained at 100% for nine consecutive years; in 2017, 70 tons of sulfur hexafluoride gas was purified and treated, equivalent to reducing 1.675 million tons of carbon dioxide emissions. The company also vigorously advocates the construction of green institutions, strives to be an example of energy conservation and emission reduction, and actively contributes to social energy conservation and emission reduction. Coordinate technologies such as energy efficiency diagnosis and monitoring, energy-saving renovation, combined cooling, heating and power supply, and energy storage to meet customer needs for various energy services such as electricity, gas, cooling, and heat.
In addition, State Grid has joined hands with upstream and downstream partners to jointly promote the green development and reform of the power industry and serve the transformation of a low-carbon economy. State Grid has built a smart Internet of Vehicles. As of the end of 2017, the smart Internet of Vehicles platform has connected to 170,000 charging piles. Through the implementation of green procurement, the priority to purchase high-energy-efficiency and environmentally-friendly products, promote the power equipment industry to improve the level of energy conservation and environmental protection and the localization rate, and jointly develop key UHV equipment with power equipment manufacturers, develop energy-saving and environment-friendly technologies, and promote power The independent innovation of the core technologies of the equipment industry, promote the green transformation of the development mode, and serve the construction of ecological civilization.
Accelerate the construction of UHV to make clean energy transmission unimpeded
The growth of a large amount of new energy installed capacity has put forward higher requirements for the energy system. Whether it is the increase in the proportion of new energy power generation or consumption, it is inseparable from a safe, green, high-efficiency UHV grid with balanced adjustment capabilities. The UHV power grid is connected to the development and utilization of clean energy in the northern part of the west and the clean development of the central and eastern parts. It has become the strategic focus of the country’s clean energy development. In just 0.008 seconds, clean energy such as wind power and solar power from Gansu can be instantly delivered to the Xiangtan converter station in Hunan. strength.
While optimizing the allocation of energy resources, the UHV power grid has achieved initial results in energy conservation, emission reduction, and promotion of environmental governance. In 2017, the UHV AC and DC projects of the National Air Pollution Prevention and Control Action Plan were fully completed, of which 8 UHV projects were constructed by the State Grid. At the same time, in order to solve the problem of clean energy delivery in Gansu and the “nested electricity” problem in Northeast China, State Grid has actively promoted the construction of two UHV DC projects from Jiuquan-Hunan and Zalut-Qingzhou. These projects pass through 16 provinces (autonomous regions and municipalities directly under the Central Government) and are expected to increase the power receiving capacity of the eastern and central regions by 80 million kilowatts, reduce coal-fired transportation by 18,000 tons per year, and reduce PM2.5 concentration by 4% to 5%. . These UHV projects of power transmission from west to east, 80% of the electric energy transmitted comes 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.
In addition to accelerating the construction of UHV power grids, State Grid has also strengthened the construction of new energy grid connection and transmission projects, and promoted intra-provincial and inter-provincial and inter-regional power transmission projects. In 2017, the total investment of 750 kV and below new energy grid connection and transmission projects of the State Grid was 9.5 billion yuan, and 2,742 kilometers of new energy grid connection and transmission lines were built, meeting the needs of 5,426 new energy power generation projects for grid connection and transmission in the province. need. Only the 500 kV power transmission and transformation project in Minghai Lake in Shanxi has connected to the installed capacity of wind power of 700,000 kilowatts, effectively alleviating the problem of wind power obstruction in Shuozhou and reducing abandoned wind power by 400 million kilowatt-hours.
Promoting the replacement of electricity, reducing the smell of soot and enriching the sense of happiness
At present, electric energy substitution has become an important starting point for my country to prevent and control air pollution, improve environmental quality, and adjust energy structure. State Grid has actively implemented the national deployment, vigorously carried out electric energy replacement work, increased the proportion of electric energy in terminal energy consumption, promoted electric energy replacement work in various fields such as clean heating and port shore power, and enhanced people’s sense of happiness in life.
Mr. Zhang, from Zhanglaoying Village, Yanqing District, Beijing, deeply felt the benefits of “coal-to-electricity”. Uncle Zhang’s house adopts the distributed photovoltaic power generation and carbon plate heating method promoted by the company. “The board installed on the roof can generate electricity, and the generated electricity can be sold to the power supply company!” At the end of the heating season on March 15, Uncle Zhang calculated the account: not only did he not spend the entire heating season, he also earned 805 yuan. After the implementation of the “coal-to-electricity” project, in the heating season in Beijing in 2017, the burning of scattered coal was reduced by 4.15 million tons, and the emission of carbon dioxide was reduced by 10.79 million tons.
In November 2017, the teaching building of the ethnic boarding middle school in Maduo County, Qinghai was warm and warm. The pointer of the thermometer in the classroom pointed to 21 degrees Celsius. “The current classroom and dormitory are very warm and comfortable.” Qing Zhuoma is very happy. These changes are due to the company’s first alpine and high-altitude clean heating project put into operation in Maduo. The original coal boilers in Maduo County schools have been transformed into new energy-saving electric boilers, which are planned to be promoted throughout Maduo County. According to estimates, after all the clean heating projects in Maduo County are put into operation, it can replace 27,800 tons of standard coal every year, reduce carbon emissions by 18,900 tons, carbon dioxide emissions by 69,400 tons, sulfur dioxide emissions by 2,100 tons, and nitrogen oxide emissions by 10,000 tons. .
Increasing the proportion of electric energy in terminal energy brings the concept of clean energy use, and also provides a solution for the coordinated development of economy and environment.
On the morning of April 19, after the expedition ship Jiageng of Xiamen University returned to port, the ship’s fuel-fired generator was turned off, and high-voltage shore power was used to supply the ship’s electricity. At present, the electrification transformation is accelerating in Fujian, and the construction of the Pingtan Comprehensive Experimental Zone, the first low-carbon, high-efficiency, and ecological global electrification island in China, is also in full swing. The electric energy of service facilities is completely replaced, and the utilization rate of clean electric energy in the fields of food, housing, transportation, and entertainment reaches 95%.
In recent years, the State Grid has actively promoted the conversion of oil to electricity in the terminal energy fields such as airports, ports, and motor-driven well irrigation, and implemented the “two vertical and one horizontal” port shore power projects in the coastal areas, the Beijing-Hangzhou Grand Canal, and along the main waterway of the Yangtze River. From 2016 to 2020, it is planned to achieve 580 billion kWh of electricity instead of electricity.
Accelerate the construction of a unified national electricity market and promote clean energy consumption
In June 2017, all clean energy power supply was carried out in Qinghai for 168 consecutive hours, with a cumulative power consumption of 1.18 billion kWh, of which hydropower accounted for 72%, new energy accounted for 28%, and new energy power generation accounted for the highest proportion of real-time load 93%, Created a new world record.
In 2017, my country’s new energy consumption improved significantly, and the growth momentum of abandoning wind and solar power was curbed. The State Grid’s operating areas consumed 323 billion kWh of new energy throughout the year, a year-on-year increase of 40.4%. The rate decreased by 5.3 percentage points year-on-year, and the power abandonment rate and the power abandonment rate achieved a “double drop”.
In recent years, the company has resolutely implemented the spirit of the important instructions of the central government, introduced 20 measures to promote new energy consumption, and played the role of grid resource allocation and trading platform. The Beijing Electric Power Trading Center, together with the relevant provincial power trading centers, actively adopts the market-based trading mechanism and implements 10 related market-based trading varieties to promote clean energy consumption. At present, the national-level Beijing power trading platform and 27 provincial-level power trading platforms have been established, providing technical support for the large-scale consumption of new energy. While expanding the market through power trading, State Grid has continued to improve its power grid balancing capabilities, implemented unified dispatching across the entire network, promoted the liberalization of thermal power generation plans, tapped thermal power peak shaving potential, maximized use of pumped storage power stations, and implemented regional rotating backup sharing. , strengthen the inter-provincial power grid peak regulation and mutual assistance, and do our best to absorb new energy.
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