Sichuan is located in the middle part of China's interior. It is the best combination of economic relay and power relay. In this sense, revisiting the strategic positioning of Sichuan Power Grid and realizing the development goals of “big power grid, large hub, and large platform†is not only very necessary but also very urgent. The predicament of Sichuan Power's "abundant surplus" will be solved with the completion of the national exchange platform.
At the beginning of the "Twelfth Five-Year Plan", the structural "electricity shortage" that appeared in 15 provinces and cities in China has become increasingly fierce. This is not only a useful reflection of excessive growth in electricity demand, high coal prices, but also a concentrated reflection of structural contradictions such as the reverse distribution of China’s energy resources and energy consumption, as well as the intensification of energy development methods and power development methods. problem.
80% of China's coal resources and 40% of wind energy are located in the Great Northwest, 80% of the hydropower resources are concentrated in the Southwest, and 60% of the country's energy consumption is concentrated in the coastal developed areas such as the Yangtze River Delta and the Pearl River Delta. Only through centralized development, large-scale long-distance transmission, and nationwide optimization of allocation can we ensure the sustainable, safe and stable supply of energy. To realize this grand goal, we must resolutely implement the “One Special Four†strategy proposed by the State Grid Corporation of China, and promote the intensive development of large coal-fired power stations, large hydropower stations, large nuclear power stations, and large-scale renewable energy (wind energy, solar energy) through the development of UHV power grids. The development will allow "coal transported from the air", "water flow from the sky", and "wind flow from the Internet" to form a new pattern of large-scale "transmitting electricity from the west to the east" and "from the North to the south" to optimize the allocation of energy throughout the country.
Hydropower development pushes the power grid construction Sichuan's hydropower resources endow with abundant runoff, large drop in riverbed, good regulation performance, less watershed migration, superior development conditions, and obvious economic advantages. As of the end of 2010, there were a total of 31.35 million kilowatts of hydropower installed in Sichuan, accounting for only a quarter of the amount of technology that could be developed. At present, power generation companies headed by China’s five largest power generation groups have built and planned 220 large, medium, and small projects on more than 100 rivers in Sichuan. By 2015, Sichuan’s hydropower capacity will exceed the current installed capacity by doubling to 72.26 million kilowatts. Sichuan will become a world-renowned “hydropower kingdomâ€.
Large-scale power supply development will inevitably lead to the leap-forward development of large power grids. With the grid-connected power generation of Xiangjiaba, Jinping I, II, Guandi, Xiluodu and Other large hydropower plants, it will inevitably promote the construction of power grids with high voltage levels and large transmission capacity. Driven by relevant national policies, the development of large-scale power points in full swing will inevitably require the simultaneous construction of power grids. This is a rare historical opportunity and powerful impetus for the accelerated development of Sichuan power grids. The construction of Sichuan into the nation’s most important energy base and the establishment of a highland power grid in western China has become the most important delivery end of the national grid. It is determined by the adjustment of China’s energy structure and is also a major measure for the transformation of power development methods. It is imperative.
Rebuilding a Sichuan Power Grid In recent years, with the rapid development of Sichuan's social economy, the growth rate of electricity consumption in our province has always remained above two digits. According to the “Twelfth Five-Year Plan†proposed by the provincial party committee and the provincial government, by 2015, when the province’s GDP exceeds 3 trillion yuan, the entire society will use more than 300 billion kwh of electricity, which is twice the amount of electricity used in 2010. . On May 5 this year, the State Council formally approved the “Chengdu Economic Zone Regional Plan.†Chengyu Economic Zone will form an important economic growth pole following China’s “Yangtze River Deltaâ€, “Pearl River Delta†and “Circular Bohai Sea†and so on. It is a "bipolar engine" for the development of the western region. The provincial party committee and the provincial government vigorously promoted the construction of new-type urbanization and new-type industrialization, and formally started the construction of the “Xinjiang New Districtâ€, and “building an industry Chengdu again†at a higher starting point. Sichuan ranks first in the “seven dragons†for economic development in the country, and Chengdu’s leading role is prominent. In line with this, we will reinvest 25.6 billion yuan in Chengdu Power Grid to implement the “Tengfei Project†from this year, and the power supply capacity of Chengdu Power Grid will reach 13 million kilowatts by the end of the “Twelfth Five-Year Planâ€. This will demonstrate the rapid development of Sichuan Power Grid. And lead role.
Sichuan Electric Power Company seized the opportunity to take advantage of the situation, conscientiously implemented the “Several Opinions on Accelerating the Construction of Sichuan Power Grid†promulgated by the provincial government, and endeavored to implement the “12751†development goal. By 2015, the investment in power grid construction will exceed 100 billion yuan. In the province, a 500-kilovolt power grid will be used as the backbone, 220-kilovolt power grids will be supported, and 110-kilovolt and below networks will be the basis. The layout is optimized, the structure is reasonable, and the links are close. The coordinated and safe transmission and distribution system between urban and rural areas is equivalent to “rebuilding a Sichuan power grid†on the basis of 2010, becoming one of the largest provincial power grids in the country.
The National Twelfth Five-Year Plan of the main battlefield for fighting UHV construction has incorporated UHV construction into the development plan, which shows that the country attaches great importance to UHV in its energy strategy and also marks that the UHV has shifted from research and demonstration to demonstration construction. stage. We must adhere to the development path of the power grid with Chinese characteristics, unswervingly promote the transformation of the development mode of the power grid, and firmly establish the belief that construction of the UHV is an inevitable choice, and stick to the path of synchronous and coordinated development of UHV AC and DC.
At present, Sichuan is the main battlefield and main position for the construction of UHV power grids. The UHV projects that have been built, under construction, and planned to be built are the highest in the country: 1. Xiangjiaba-Shanghai ± 800 kv UHV DC transmission power of 6.4 million. Kilowatts; 2. Jinping-Suinan ± 800 kv UHV DC transmission power of 7.2 million kilowatts; 3, Yaan-Nanjing 1000 kV UHV AC (North-South dual-channel) transmission power of 11.5 million kilowatts; 4, Xiluodu-Zhexi ± 800 Thousand volts UHV DC transmission power of 7.5 million kilowatts; 5, Hami, Xinjiang ~ Chengdu, Sichuan ± 1100 kV UHV transmission power 10 million kilowatts. Through the construction of trans-provincial and trans-regional transmission corridors, the “two routes and four routes†and the national network are formed, with the completion of the east connection to Sanhua (Central China, East China, North China) and Xina New Tibet (Xinjiang and Tibet), and the north-west power generation. Transport large hub.
Promoting the “Jiangmin Power to Sichuan†project The power resource of Sichuan is mainly composed of hydropower. With the Sichuan economy “going high and striding forwardâ€, the structural power shortage situation has become increasingly severe. During this year's "summer peak summer" period, Sichuan's electricity load has reached record highs. The "weak balance" of electricity supply and demand has been broken several times, and it will be extremely difficult to supply electricity during the dry season. If we do not plan ahead and vigorously promote cross-provincial cross-regional power grid construction and crack down the “abundant surplus†predicament, it is very likely that the take-off Sichuan economy will lose at the starting line. Therefore, while accelerating the construction of high-voltage and cross-provincial inter-regional networking projects in Sichuan, we will actively promote the “Jiangmin Power in Sichuan†project to achieve greater scope and more large-scale “mutual benefitsâ€, which is fundamental The only option to resolve the structural power shortage in Sichuan. Xinjiang is an important energy reserve and supply base in China. The completion of the “Jiangmin Power to Sichuan†channel can deliver 10 million kilowatts of installed capacity to Sichuan, convert 33 million tons of coal annually, and reduce carbon dioxide emissions by more than 70 million tons, equivalent to that in Sichuan. Two new "Gezhouba" projects.
At the same time when the "Jiangmin Power entered Sichuan" was launched, the project of "Jade Power entered Chongqing" (from eastward to Chongqing Road passing over 310 kilometers in Sichuan) was also strongly promoted, and "Tibet Electric Powered into Sichuan" had already entered the high-level planning operation. "Jijiang Power in Sichuan", "Tibet Electricity into Sichuan" and "Chuandian Power Transmission" have been combined to form a large platform for national exchanges. This will not only solve the dilemma of Sichuan's "abundant surplus", but will also show "a combination of water, heat and energy" across the country. Complementary to each other, each other is back-up", the advantage of 1+1 ≥ 2 superposition effect. At that time, large hydropower stations in Sichuan and Tibet, large coal power stations and large wind power stations in Xinjiang will be sent to Central China, East China, and North China. The construction of the “Three China†UHV power grid and the national chessboard energy deployment will be significant. significance.
At the beginning of the "Twelfth Five-Year Plan", the structural "electricity shortage" that appeared in 15 provinces and cities in China has become increasingly fierce. This is not only a useful reflection of excessive growth in electricity demand, high coal prices, but also a concentrated reflection of structural contradictions such as the reverse distribution of China’s energy resources and energy consumption, as well as the intensification of energy development methods and power development methods. problem.
80% of China's coal resources and 40% of wind energy are located in the Great Northwest, 80% of the hydropower resources are concentrated in the Southwest, and 60% of the country's energy consumption is concentrated in the coastal developed areas such as the Yangtze River Delta and the Pearl River Delta. Only through centralized development, large-scale long-distance transmission, and nationwide optimization of allocation can we ensure the sustainable, safe and stable supply of energy. To realize this grand goal, we must resolutely implement the “One Special Four†strategy proposed by the State Grid Corporation of China, and promote the intensive development of large coal-fired power stations, large hydropower stations, large nuclear power stations, and large-scale renewable energy (wind energy, solar energy) through the development of UHV power grids. The development will allow "coal transported from the air", "water flow from the sky", and "wind flow from the Internet" to form a new pattern of large-scale "transmitting electricity from the west to the east" and "from the North to the south" to optimize the allocation of energy throughout the country.
Hydropower development pushes the power grid construction Sichuan's hydropower resources endow with abundant runoff, large drop in riverbed, good regulation performance, less watershed migration, superior development conditions, and obvious economic advantages. As of the end of 2010, there were a total of 31.35 million kilowatts of hydropower installed in Sichuan, accounting for only a quarter of the amount of technology that could be developed. At present, power generation companies headed by China’s five largest power generation groups have built and planned 220 large, medium, and small projects on more than 100 rivers in Sichuan. By 2015, Sichuan’s hydropower capacity will exceed the current installed capacity by doubling to 72.26 million kilowatts. Sichuan will become a world-renowned “hydropower kingdomâ€.
Large-scale power supply development will inevitably lead to the leap-forward development of large power grids. With the grid-connected power generation of Xiangjiaba, Jinping I, II, Guandi, Xiluodu and Other large hydropower plants, it will inevitably promote the construction of power grids with high voltage levels and large transmission capacity. Driven by relevant national policies, the development of large-scale power points in full swing will inevitably require the simultaneous construction of power grids. This is a rare historical opportunity and powerful impetus for the accelerated development of Sichuan power grids. The construction of Sichuan into the nation’s most important energy base and the establishment of a highland power grid in western China has become the most important delivery end of the national grid. It is determined by the adjustment of China’s energy structure and is also a major measure for the transformation of power development methods. It is imperative.
Rebuilding a Sichuan Power Grid In recent years, with the rapid development of Sichuan's social economy, the growth rate of electricity consumption in our province has always remained above two digits. According to the “Twelfth Five-Year Plan†proposed by the provincial party committee and the provincial government, by 2015, when the province’s GDP exceeds 3 trillion yuan, the entire society will use more than 300 billion kwh of electricity, which is twice the amount of electricity used in 2010. . On May 5 this year, the State Council formally approved the “Chengdu Economic Zone Regional Plan.†Chengyu Economic Zone will form an important economic growth pole following China’s “Yangtze River Deltaâ€, “Pearl River Delta†and “Circular Bohai Sea†and so on. It is a "bipolar engine" for the development of the western region. The provincial party committee and the provincial government vigorously promoted the construction of new-type urbanization and new-type industrialization, and formally started the construction of the “Xinjiang New Districtâ€, and “building an industry Chengdu again†at a higher starting point. Sichuan ranks first in the “seven dragons†for economic development in the country, and Chengdu’s leading role is prominent. In line with this, we will reinvest 25.6 billion yuan in Chengdu Power Grid to implement the “Tengfei Project†from this year, and the power supply capacity of Chengdu Power Grid will reach 13 million kilowatts by the end of the “Twelfth Five-Year Planâ€. This will demonstrate the rapid development of Sichuan Power Grid. And lead role.
Sichuan Electric Power Company seized the opportunity to take advantage of the situation, conscientiously implemented the “Several Opinions on Accelerating the Construction of Sichuan Power Grid†promulgated by the provincial government, and endeavored to implement the “12751†development goal. By 2015, the investment in power grid construction will exceed 100 billion yuan. In the province, a 500-kilovolt power grid will be used as the backbone, 220-kilovolt power grids will be supported, and 110-kilovolt and below networks will be the basis. The layout is optimized, the structure is reasonable, and the links are close. The coordinated and safe transmission and distribution system between urban and rural areas is equivalent to “rebuilding a Sichuan power grid†on the basis of 2010, becoming one of the largest provincial power grids in the country.
The National Twelfth Five-Year Plan of the main battlefield for fighting UHV construction has incorporated UHV construction into the development plan, which shows that the country attaches great importance to UHV in its energy strategy and also marks that the UHV has shifted from research and demonstration to demonstration construction. stage. We must adhere to the development path of the power grid with Chinese characteristics, unswervingly promote the transformation of the development mode of the power grid, and firmly establish the belief that construction of the UHV is an inevitable choice, and stick to the path of synchronous and coordinated development of UHV AC and DC.
At present, Sichuan is the main battlefield and main position for the construction of UHV power grids. The UHV projects that have been built, under construction, and planned to be built are the highest in the country: 1. Xiangjiaba-Shanghai ± 800 kv UHV DC transmission power of 6.4 million. Kilowatts; 2. Jinping-Suinan ± 800 kv UHV DC transmission power of 7.2 million kilowatts; 3, Yaan-Nanjing 1000 kV UHV AC (North-South dual-channel) transmission power of 11.5 million kilowatts; 4, Xiluodu-Zhexi ± 800 Thousand volts UHV DC transmission power of 7.5 million kilowatts; 5, Hami, Xinjiang ~ Chengdu, Sichuan ± 1100 kV UHV transmission power 10 million kilowatts. Through the construction of trans-provincial and trans-regional transmission corridors, the “two routes and four routes†and the national network are formed, with the completion of the east connection to Sanhua (Central China, East China, North China) and Xina New Tibet (Xinjiang and Tibet), and the north-west power generation. Transport large hub.
Promoting the “Jiangmin Power to Sichuan†project The power resource of Sichuan is mainly composed of hydropower. With the Sichuan economy “going high and striding forwardâ€, the structural power shortage situation has become increasingly severe. During this year's "summer peak summer" period, Sichuan's electricity load has reached record highs. The "weak balance" of electricity supply and demand has been broken several times, and it will be extremely difficult to supply electricity during the dry season. If we do not plan ahead and vigorously promote cross-provincial cross-regional power grid construction and crack down the “abundant surplus†predicament, it is very likely that the take-off Sichuan economy will lose at the starting line. Therefore, while accelerating the construction of high-voltage and cross-provincial inter-regional networking projects in Sichuan, we will actively promote the “Jiangmin Power in Sichuan†project to achieve greater scope and more large-scale “mutual benefitsâ€, which is fundamental The only option to resolve the structural power shortage in Sichuan. Xinjiang is an important energy reserve and supply base in China. The completion of the “Jiangmin Power to Sichuan†channel can deliver 10 million kilowatts of installed capacity to Sichuan, convert 33 million tons of coal annually, and reduce carbon dioxide emissions by more than 70 million tons, equivalent to that in Sichuan. Two new "Gezhouba" projects.
At the same time when the "Jiangmin Power entered Sichuan" was launched, the project of "Jade Power entered Chongqing" (from eastward to Chongqing Road passing over 310 kilometers in Sichuan) was also strongly promoted, and "Tibet Electric Powered into Sichuan" had already entered the high-level planning operation. "Jijiang Power in Sichuan", "Tibet Electricity into Sichuan" and "Chuandian Power Transmission" have been combined to form a large platform for national exchanges. This will not only solve the dilemma of Sichuan's "abundant surplus", but will also show "a combination of water, heat and energy" across the country. Complementary to each other, each other is back-up", the advantage of 1+1 ≥ 2 superposition effect. At that time, large hydropower stations in Sichuan and Tibet, large coal power stations and large wind power stations in Xinjiang will be sent to Central China, East China, and North China. The construction of the “Three China†UHV power grid and the national chessboard energy deployment will be significant. significance.
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