2014: the interconnection of the power grid becomes more and more close to the high voltage.
Source: China energy newspaper 2014/12/31 8:58:56
Back in 2014, a number of well-known grid projects have started to build, run, substantial investment makes China grid more reliable and achieve a greater range of optimal allocation of energy resources; promote a new outlook of China's power grid construction, and actively promote China's electrical equipment manufacturing capability of independent innovation and effective promotion; no the electric power grid construction area covered by the advance, highlighting the power of corporate social responsibility; popular governance haze, air pollution prevention and control, accelerate the construction of modern power grid to promote large-scale use of renewable energy and intelligent features in china......
In this period, we choose the ten news hot spots of the power grid industry in China for a year to look back with the readers in 2014.
1 "along the way" to promote the interconnection and interoperability of the power grid
In November 10th, the national Power Grid Corp general manager Shu Yinbiao (APEC) said the APEC CEO Summit, President Xi Jinping put forward the "The Belt and Road" strategy, make it possible to choose the power infrastructure to achieve interoperability with neighboring countries China.
Shu Yinbiao introduced that China has three main points to achieve networking with neighboring countries: first, the Silk Road Economic Belt transmission corridor, the transmission channel from Xinjiang China to five Central Asian countries; the two is the transmission channel from Russia to Mongolia, and the three is connected with the southern neighbors. At present, a number of transmission projects from Russia to the Far East have been launched. The first phase has completed the pre feasibility study. The transmission is from Ye M Kopf Qi to North China. The scale of transmission is 8 million kilowatts, and the next step will continue to expand. Shu Yinbiao said that now the technological conditions of interstate interconnection between power grids have basically met. In the future, we will vigorously promote technological innovation in the areas of new energy, energy storage and operation control of large power grids, and achieve greater breakthroughs.
As everyone knows, China's electric power resource shortage and imbalance, therefore must be networked in the progressive realization of the national power grid at the same time, and actively promote the development of transnational power grid interconnection, optimize the allocation of resources to achieve cross regional, cross country, formation of the electricity market is more economical, more reasonable range, so that the product quickly into the development of electric power the trend of global economic integration, lay a solid foundation for the realization of sustainable development strategy in china. It is foreseeable that in the future, power cooperation and networking between China and neighboring areas will continue to strengthen, which is of great significance for the coordinated development of economy, energy and environment in China and the surrounding areas.
Comment since September 13, 1994, China's first cross-border power transmission project 10 thousand volt - Inner Mongolia Power Company from Erenhot to Mongolia in the western power grid transmission line project was put into operation in November 29, 2010, 500 thousand volt DC interconnection between China and Russia in Heihe BTB project completion, at present our country and neighboring countries have built 18 cross-border transmission channel. Among them, 8 in Southeast Asia, 2 in Kyrgyzstan in Central Asia, 3 in Russia in Northeast Asia and 5 in Mongolia.
Our country through the 18 cross-border transmission channel completed the delivery of electricity, the purchase of electricity, not only regulates the power demand at home and abroad, and the relevant force to drive the development of national economy, to enhance China's international influence, the countries along to Chinese more recognition, more intimate, more support, promote China's economy and the surrounding countries integrated development. At present, North America, Europe and CIS countries have built trans regional interconnection and interconnected power grids. All countries have promoted the technological progress of the power industry through the interconnection of power grids, and achieved huge economic, social and environmental benefits. In contrast, the interconnected power grid between China and the surrounding countries is still in its infancy. It is foreseeable that in the future, power cooperation and networking between China and neighboring areas will continue to strengthen, which is of great significance for the coordinated development of economy, energy and environment in China and the surrounding areas.
2 air pollution prevention and control transmission channel full start
In May this year, the National Energy Board issued a "National Energy Bureau on accelerating the construction of 12 key transmission channel of air pollution control action plan notice" requirements, pay close attention to 12 key transmission channel related work, including "four pay five straight UHV and 3 + 500 thousand volt transmission channel.
In November 4th, 1 million V Huainan - Nanjing - Shanghai, Ximeng - Shandong UHV AC project and + 800 thousand volt Ningdong - Zhejiang HVDC project. This is the first batch of the 12 key transmission corridors approved by the national air pollution control action plan, and has been the first to start the construction of the UHV project. It has opened the prelude of speeding up the construction of the key transmission channel of the air pollution control action plan.
In accordance with the related planning, the 12 key transmission channels of air pollution prevention and control action plan will be completed by 2017. Then, the transmission capacity can add about 7000 MW, basically meet the demand before 2020 by the Beijing Tianjin Hebei Shandong, the Yangtze River Delta, Pearl River Delta region, to reduce annual consumption of 1 tons of standard coal in the area above. At the same time, the East China power grid will be formed in UHV AC ring, the Yangtze River Delta region increased by the power capacity of 35 million kilowatts, can reduce power generation coal 2 tons per year, 960 thousand tons of sulfur dioxide emissions, 530 thousand tons of nitrogen oxide, 110 thousand tons of soot, can be strongly supported by the end of the region energy-saving emission reduction and air pollution control work.
In addition, it also plays an important role in stimulating domestic demand and economic growth, promoting transformation and upgrading of equipment manufacturing industry, promoting coordinated development between East and West, and promoting employment. According to the investment estimate, the total investment of the key transmission channel of the air pollution control action plan will reach about 200 billion yuan, and the output value of the transmission and transformation equipment manufacturing industry will be increased by 90 billion yuan, which will directly drive the power investment to about 500 billion yuan. Each year, the GDP increased by 64 billion yuan, the tax revenue increased by 12 billion yuan, and the employment position was increased by 140 thousand.
3 a "power road Tibet networking project put into operation
In November 20th, Yu Zhengsheng, chairman of the Standing Committee of the Political Bureau of the CPC Central Committee and chairman of the CPPCC National Committee, attended the operation ceremony of the Sichuan Tibet power interconnection project in Beijing and announced the project was put into operation, marking the completion of the project six months ahead of schedule. This is following the Qinghai Tibet networking project, national Power Grid Corp construction and one of the world's most challenging road of power "".
Tibet networking is by far the world's most difficult construction of power transmission project, located in the hinterland of Tibet Plateau construction, steep terrain, undulating line gap, part of the region is along the alpine, precipitous rock faces and sheer cliffs, complex geology, soil widely distributed, the construction environment is extremely bad, the technical difficulty is great.
Compared with the Qinghai Tibet network project, the materials used in Sichuan and Tibet network equipment are much more used, and there are no railways and freeways for transportation along the line. About 400 thousand tons of equipment and materials, including tower, high-pressure reactor, main transformer and other large equipment, long distance should be arrived at the site, the average distance of nearly 1000 km. Along the way, over 4000 meters of snow covered mountains and virgin forests and Glacier Canyon are crossed. Some areas are difficult to pass through. Blocking and breaking up occur frequently, and the transportation of materials is extremely difficult. At the same time, 90% of the towers of the project are built at high altitude, unmanned area, far away from highway or road without transportation. Therefore, the whole project has set up more than 900 tons of 1.5 ton freight ropeway, with a length of 1100 km, transportation materials 400 thousand tons, and cableway erection scale unprecedented.
Comment on snow flower, mulberry, Tanggula butter tea, galloping horse...... After the completion of the Tibet Tibet interconnection network on the snow covered plateau, it not only ended the history of long term isolated network operation in Changdu, Tibet, but also solved the problem of electricity consumption of 1 million 450 thousand people in Tibet, Changdu and Sichuan Ganzi.
At the same time, the network of Sichuan and Tibet will help the local clean water supply. Tibet, Changdu, Sichuan and Ganzi are rich in hydropower resources. Taking Ganzi as an example, its hydropower resources account for 34.4% of the hydropower resources in Sichuan Province, and the installed capacity of technology is up to 41 million 300 thousand kilowatts, which is equivalent to two three gorges, while the current development is only 5 million 500 thousand kilowatts. Therefore, the electric power network project to meet in Changdu region is rich in hydropower resources development delivery to accelerate, will play an important role in Changdu resource advantages into economic advantages, is to enhance the southwest clean energy consumptive ability, to realize the regional coordinated development of economy and environment of the "green project", "environmental protection engineering".
4 basic solution of electricity free population
According to the "three year action plan for electricity utilization of the population without electricity" (2013 to 2015) issued by the national energy board, the power consumption problem of the population without electricity will be basically solved in 2014, and the electricity consumption problem of the population without electricity will be solved in 2015. To this end, Xinjiang, Gansu, Qinghai and other places to speed up the electric power construction in the area without electricity.
In December 5th, Qinghai Province, the last village without electricity in Hainan Tibetan Autonomous Prefecture, Tongde County, Tang Ku East Village I successfully energized, marked by the construction and management of Qinghai electric power company of Qinghai province power construction areas without electricity grid extension power projects a year ahead of the completion of operation, from the fundamental solution to the Qinghai, 83 thousand and 400 the problem of electricity power area 22 thousand and 700.
Previously, the Gansu area without power grid construction tasks have been completed, Zhangye, Qingyang, settled in Longnan, Gannan City, more than 27 thousand farmers and herdsmen electricity problems; in September 25th this year, with Xinjiang Akto County rare iron Lek Village Baren Township 35 thousand volt power distribution project project put into operation, the last village without electricity in Xinjiang officially quit the stage of history. Xinjiang 98.4 million ended without electricity history; November 20th, Tibet networking project put into operation, completely solve the 1 million 450 thousand population of Changdu and Sichuan of Ganzi, south of Tibet electricity problems...... It can be said that since this year, great progress has been made in solving the problem of electricity and electricity consumption in China.
On October 30, 2012, with the Yunnan Lijiang last batch of households without electricity power, South Power Grid Corp realized the household electricity grid coverage area "". Therefore, "a comprehensive solution to the problem of people without electricity consumption three year action plan (2013 - 2015)" the population without electricity involved, mainly concentrated in the national Power Grid Corp operating region, therefore, in June 7, 2013, the national Power Grid Corp and Sichuan, Tibet, Gansu, Qinghai, Xinjiang 5 provinces (autonomous regions) the government signed jointly accelerate power construction area of the agreement in Beijing, a clear mandate and plan, ensure the completion of the construction tasks.
5 actively "going out" and deepening foreign cooperation
In February 7th, the national Power Grid Corp and the Brazil electric power company to 51%:49% shares than the composition of the joint venture in Brazil successfully won the bid for the beautiful landscape of the electric UHVDC transmission project, marking the China UHV technology going out a major breakthrough; in July 31st, the national Power Grid Corp and the Italy deposit and loan companies signed an agreement to pay 2 billion 100 million euros for Italy energy company loans the company's 35% stake, and complete the transaction in November 27th.
At the same time, as of now, a number of investments completed by the national network company have achieved good investment returns, and the return on investment can be used for reinvestment. To this end, China will be based on the actual business and advantages, and carry out overseas mergers and acquisitions of assets operation, international engineering contracting, electrical equipment output, international energy cooperation, international standardization work, realize the reasonable distribution of overseas operations, and to formulate the internationalization strategy and objectives, it is expected that in 2020, the company's overseas assets will reach $300-500.
In March 6th, the company won the South Network International Project No. 1 Hydropower Station issued by the Ministry of planning and investment of Laos Namtha investment license; in December 15th, the Guangxi Power Grid Corp in Kampuchea Phnom Penh ring of the I section of 230 thousand kV power transmission project successfully put into production power, marks the company to complete the project construction in Kampuchea Phnom Penh ring the task......
Comments on the power grid as the infrastructure of the national economy, has the characteristics of public resources, and has a global impact on economic development. Compared with oil and gas, coal and other energy industries, the power grid "going out" is more difficult. Therefore, the power grid enterprises to actively go abroad to participate in international competition, gains from the open technology, capital and talent is equal to the operation of a comprehensive competitive advantage and stable. At the same time, the power grid enterprises give full play to the advanced experience of the operation and management of the large power grid, and improve the operation level and the safe and reliable power supply capability of the local power grid.
6 The footsteps of the 6 ultra high voltage backbone network are getting closer and close
In December 26th, north of Zhejiang - Fuzhou 1 million volt high-voltage AC power transmission project put into operation, this is the year of China's operation of the third UHV project. Earlier, in January 27th, Hami South - Zhengzhou - 800 thousand volt HVDC project put into operation, this is the first study of UHV transmission project implementation of Xinjiang electric delivery strategy; in July 3rd, on the left bank of Xiluodu - Zhejiang Jinhua - 800 thousand volt HVDC project put into operation, the world's first single HVDC project for 8 million kilowatts run and 8 million 400 thousand kilowatts overload transmission operation, creating a new record high capacity DC transmission.
At the same time, other UHV projects have made new progress, as of November 4th, 1 million V Huainan - Nanjing - Shanghai, Ximeng - Shandong UHV AC project and + 800 thousand volt Ningdong - Zhejiang HVDC project, South Tianjin, Yulin and Hengshan Mengxi - Weifang UHV AC project has been completed preparatory work; preparatory work Ximeng Taizhou - Jiangsu, Inner Mongolia, Shanxi Shanghai temple - Shandong HVDC project has entered the final stages of finishing; before the national network also announced the latest "five pay eight straight UHV construction planning.
Comments on the exchange can deliver flexible collection, and distribution of electric power; DC transmission is the main function of large-scale DC access by the end of the need to rely on the strong AC power can guarantee the safe and reliable operation, so the UHV AC transmission line and DC lines to make scientific collocation, power efficient transportation, economy, stability. Previously, due to features such as networking, UHV AC project has been controversial, especially the UHV AC project started has been lower than expected.
Since this year, the national Power Grid Corp has increased its investment in UHV AC projects, especially the 2 UHV AC projects, which will help to build UHV power grids with AC-DC scientific matching. Such as 1 million V Huainan - Nanjing - Shanghai UHV AC project is completed, will form a UHV AC ring and 1 million V Huainan - Zhejiang - Shanghai UHV project, the capacity of East China power grid to accept electricity outside the region increased significantly. It is foreseeable that in order to promote the energy production and consumption revolution and fundamentally solve the haze problem, China's power grid enterprises will further accelerate the development of UHV power grid.
7 to deepen the comprehensive reform of the reform of the reform of the trial water
In May 27th, the national Power Grid Corp in Beijing held an open distributed power grid project, the electric vehicle charging facilities for electric market, a press conference, announced a major move in the field of open markets, and issued "on the distributed power grid to do service work advice to society" (Revised Edition) and "on the electric vehicle charging facilities for electric telegraph equipment service".
It is understood that the reason why the two markets are opened first is that, compared with other large power grid projects, the two areas have good market prospects, moderate investment scale, moderate technical requirements, and difficult management, which is convenient for social capital and private capital to enter.
In the third Plenary Session of the 18th CPC Central Committee, the party made an important decision to deepen the reform and develop the mixed ownership economy in an all-round way. In order to implement the relevant requirements on deepening the reform of the CPC Central Committee and the State Council, the national network is studied, according to national laws and regulations and related regulations, fully open and distributed power network engineering and electric vehicle charging facilities for electric market, and in accordance with the policy of openness and transparency, optimize processes, simplify procedures, improve the efficiency of the service principle. The formulation of the relevant work. Therefore, the introduction of social investment projects involved in distributed power grid, electric vehicle charging facilities, is an important measure to promote the national network of public ownership, the common development of multi ownership economy, is conducive to fully play a decisive role of the market in the allocation of energy resources, it has important significance in promoting the development of electric power industry and related industries.
8 Speed increase of intercity interconnection and private charging pile construction
In May 27th, the State Grid issued the opinions on doing well telegraph service in electric vehicle charging and exchanging facilities. It explicitly supports social capital's participation in various electric vehicle charging and exchanging facilities market such as slow charging and fast charging. At the same time, China will be in accordance with the national electric vehicle development planning and city development requirements, focusing on Beijing Tianjin Hebei, Yangtze River Delta and other areas of the national demonstration pilot city construction as the focus, service electric buses, taxis and other large centralized charging station, to promote the city public transportation fast charging network.
China net sales department responsible person, China will be the main highway network as the basis, in the service area of fast charging station construction, construction of highway intercity fast charge interconnected network, covering all of its business areas demonstration city 'four vertical and four horizontal "intercity network. The "P" refers to Shen, Beijing Shanghai, Beijing and Taiwan, Hong Kong and Macao expressway, "four horizontal" is the green silver, Lianhuo, Hu Rong, Shanghai Kunming expressway construction, the focus of this year's Beijing Shanghai, Qingdao Yinchuan, Beijing Macao three high-speed road electric vehicles intercity fast charge interconnected network. At the same time, under the promotion of "opinions", Beijing, Hangzhou, Shandong and other places have appeared private electric vehicle charging piles installed and put into use. More and more private charging piles are being applied and built.
In September 30th, the first copy of the technical specification for the operation and management system for electric vehicle charging and switching was completed. With the successful application of the technical specification, the operation and management system of electric vehicle charging and exchanging will be further standardized at all levels of the network, provincial, municipal and station levels, so that the convenience of the electric vehicle user is no longer a dream.
Commented on the problems of electric vehicles, such as incomplete charging facilities, long charging time and short running distance, etc., and the main factor affecting consumers to choose electric vehicles is whether they are convenient to replace electricity. Slow charging for 8 hours and fast rushing for 1 hours make many people hope to slow down at home, and can quickly charge on the road, but in the past, no matter whether the construction of charging station or charging pile is quite satisfactory. Therefore, it is imperative to speed up the construction of the electric vehicle intelligent charging and switching service network. Therefore, the national network and the south network also begin to accelerate the construction of electric vehicle charging and switching facilities. It can be predicted that with the emergence of more and more personal charging piles, the intercity interconnection and fast charging network of expressway will be combined with personal charging piles to boost the way of cars.
9 actively advocating a new energy consumption model to fully promote electric energy replacement
November 21st, deputy director of the national Power Grid Corp Sales Department Xu Ayuan told the media that "the implementation of alternative power scheme" since the country net accumulated to promote the implementation of alternative energy projects more than 10 thousand, implementation of alternative energy consumption 56 billion 600 million kwh, equivalent to 27 million 100 thousand tons of coal to reduce burning in the consumer terminal, 48 million 260 thousand tons of carbon dioxide emissions, emissions of sulfur dioxide, carbon dioxide, 3 million 540 thousand tons of dust etc.. This distance national network in 2015 replace the target of 100 billion of electricity, to achieve "half of the time, half of the task."
The power grid enterprises in China under the unified deployment of network, full and effective use of resources and promote the advantages of local conditions, formulate promotion plan, the introduction of the relevant rules, and combined with the actual nature of clients, adopt flexible sales strategy and service charges, to replace the technology economy, use convenient, easy to accept the social perspective point, urged the project landing as soon as possible, and actively seek government encourage the introduction of alternative energy and environmental protection, subsidies and other support policies. Market research is generally carried out to find out alternative potentials in various fields. In order to rebuild projects in a timely manner, the supporting power grid projects are included in the company's reserve program management procedures in advance, and the power grid construction and transformation plan is rationally arranged.
At the same time, the southern power grid also endeavours to optimize the power supply structure on the power generation side. For example, the five provinces in the south are rich in hydropower resources, new energy development potential and coal resources are relatively scarce. Therefore, combined with regional resource advantages, the company will increase the proportion of grid connected clean energy power generation such as hydropower, nuclear power and new energy.
China advocates "comment last year to electricity generation coal to electricity instead of oil, electric energy consumption from afar" new mode, has quietly become the power generation coal to electricity instead of oil, electricity from afar, to come clean electricity, electricity can replace the more clear focus is green electric energy is to practice the alternative energy, we must from the development, transportation to all sectors of consumption are guaranteed to be green and low carbon, not only as the two energy power is clean and green, a green energy should be clean. At the same time, power grid enterprises will play an important role in promoting the replacement of electric energy. But this does not mean that electric energy substitution is going to be carried out by one side of the power grid enterprise. It is necessary to mobilize the enthusiasm of all parties and work together to form a social consensus. Those who are replaced and transformed are all economic entities, and these economic entities need to consider their economic interests.
10 adaptation and upgrading of new urbanization agricultural network
In March 16th, the State Council issued the national new urbanization plan (2014-2020 years), which opened the prelude to the construction of new urbanization in China. Correspondingly, the agricultural population settled in the town, transformation of urban shanty towns and villages will bring the level of power load, with significant changes in the structure of power, but also will change the function of the traditional city and countryside distribution network, the traditional distribution network can not meet the development needs of the new urbanization. To this end, the power grid enterprises in China have fully promoted the upgrading and upgrading of agricultural network.
The national Power Grid Corp, to meet the needs of the development of the new urbanization, and building a well-off society, is to further strengthen the implementation of the rural power grid construction, fully completed by 2020, "the new rural power grid safe and reliable, advanced technology, energy saving and environmental protection, management norms" goal. At the same time, the southern Power Grid Corp invested 17 billion 400 million yuan in the county grid construction in 2014, and made improvement measures from the aspects of power grid structure, management measures and technical means.
Along with speeding up the construction of infrastructure in county towns, key towns and rural distribution networks, the ups and downs of power lines will continuously transfer reliable, safe and sufficient energy sources to farms and fields, which will bring new vitality to the development of rural economy.
Commented on the launch of the new round of rural network transformation and upgrading in China, the power network extending from all directions extends continuously in a vast rural area, bringing a new atmosphere to the construction of new socialist countryside. At the same time, with the increase of farmers' income and national policies introduced, all kinds of electrical appliances into the farm; the annual Spring Festival, the busy season, a large number of migrant workers return home, the impact of the rural power grid, some areas appeared low voltage; the current power is still relatively weak, the county power grid is weak, single power supply, single variable problems of interoperability with the ability of poor, the common problems of main transformer capacity, aging equipment, power supply radius, wire diameter too small...... Therefore, the construction and transformation of rural power grid needs to be continuously strengthened.
