As a major challenge facing the sustainable development of human society, the issue of climate change has received increasing attention from the international community. The development of clean energy has become a common choice for coping with climate change worldwide. China is in an era of accelerated industrialization and urbanization. Energy consumption demand continues to maintain a strong growth, and the carbon emission reduction situation is very severe. Vigorously developing clean energy is the only way for China to ensure energy supply security, address climate change, and achieve sustainable development in the future. It is imminent.
Affected by the endowment of energy resources, China's energy consumption is dominated by coal, and the share of clean energy in primary energy consumption is relatively low. Relevant research shows that to achieve the goal of 15% of non-fossil energy in total primary energy consumption by 2020, the hydropower installed capacity should reach 300-350 million kilowatts, and the nuclear power installed capacity should reach 80 million kilowatts. The installed capacity of wind power should reach About 150 million kilowatts, solar power installed capacity should reach 20 million kilowatts.
80% of China’s hydropower resources are distributed in the southwestern regions of Sichuan, Yunnan, and Tibet. Wind energy resources are mainly concentrated in the “Three North†regions and the eastern coasts of North China, Northwest China, and Northeast China. Nationally planned Jiuquan of Gansu Province, Hami Prefecture of Xinjiang, Hebei Province, There are six million-kilowatt wind power bases in Mengxi, Mengdong, Jilin, and Jiangsu, and six of them are located in the “Three North†region. Solar power suitable for large-scale and concentrated development is mainly distributed in the deserts and the Gobi Desert in the west and north. Remote areas. China's energy demand is mainly distributed in the "Three Chinas" areas of North China, Central China, and East China. The reverse distribution of energy resources and central and eastern energy consumption centers determines that China must establish large-capacity, long-distance energy transmission channels through long distances. Power transmission realizes the large-scale development of clean energy and allocates and consumes clean energy throughout the country.
The distance between the clean energy bases in the western and northern regions of China and the central and eastern load center areas is generally 800 to 3,000 kilometers. It is difficult to meet the large-scale and long-distance transmission needs of energy resources due to the existing transmission technologies, which will limit the scale development of clean energy. It is impossible to realize China's international commitment to address climate change and meet the sustainable economic and social development. The construction of UHV power grids, strengthening regional interconnections, and expanding the scope of consumption are important ways to promote the development of clean energy and achieve China's international commitment to address climate change.
Accelerating the construction of UHV power grids will greatly promote the development and utilization of clean energy and achieve optimal adjustment of power supply structure. According to relevant research results, if only considering the capacity of wind power consumption in the province, the national scale of wind power that can be developed in 2020 is about 50 million kilowatts; through the UHV cross-area networking, the “Three China†synchronous power grid will be built and the peak adjustment will be increased. The construction of power supply can greatly increase the capacity of clean energy consumption. The scale of wind power development in the country is expected to reach 150 million kilowatts.
The UHV test demonstration project has achieved great success. Practice has shown that it is feasible to develop UHV technology and now has the conditions to accelerate the generalization and application. Urgently need to increase construction UHV as a national development strategy, incorporate UHV development into the national “Twelfth Five-Year Plan†development plan, realize the large-scale transfer of energy resources in the western and northern regions to the central and eastern regions, and promote the accelerated development of clean energy. Make full use of it to promote the transformation of China's power development mode, and support the sustainable development of the economy and society with the sustainable development of the power industry.
Affected by the endowment of energy resources, China's energy consumption is dominated by coal, and the share of clean energy in primary energy consumption is relatively low. Relevant research shows that to achieve the goal of 15% of non-fossil energy in total primary energy consumption by 2020, the hydropower installed capacity should reach 300-350 million kilowatts, and the nuclear power installed capacity should reach 80 million kilowatts. The installed capacity of wind power should reach About 150 million kilowatts, solar power installed capacity should reach 20 million kilowatts.
80% of China’s hydropower resources are distributed in the southwestern regions of Sichuan, Yunnan, and Tibet. Wind energy resources are mainly concentrated in the “Three North†regions and the eastern coasts of North China, Northwest China, and Northeast China. Nationally planned Jiuquan of Gansu Province, Hami Prefecture of Xinjiang, Hebei Province, There are six million-kilowatt wind power bases in Mengxi, Mengdong, Jilin, and Jiangsu, and six of them are located in the “Three North†region. Solar power suitable for large-scale and concentrated development is mainly distributed in the deserts and the Gobi Desert in the west and north. Remote areas. China's energy demand is mainly distributed in the "Three Chinas" areas of North China, Central China, and East China. The reverse distribution of energy resources and central and eastern energy consumption centers determines that China must establish large-capacity, long-distance energy transmission channels through long distances. Power transmission realizes the large-scale development of clean energy and allocates and consumes clean energy throughout the country.
The distance between the clean energy bases in the western and northern regions of China and the central and eastern load center areas is generally 800 to 3,000 kilometers. It is difficult to meet the large-scale and long-distance transmission needs of energy resources due to the existing transmission technologies, which will limit the scale development of clean energy. It is impossible to realize China's international commitment to address climate change and meet the sustainable economic and social development. The construction of UHV power grids, strengthening regional interconnections, and expanding the scope of consumption are important ways to promote the development of clean energy and achieve China's international commitment to address climate change.
Accelerating the construction of UHV power grids will greatly promote the development and utilization of clean energy and achieve optimal adjustment of power supply structure. According to relevant research results, if only considering the capacity of wind power consumption in the province, the national scale of wind power that can be developed in 2020 is about 50 million kilowatts; through the UHV cross-area networking, the “Three China†synchronous power grid will be built and the peak adjustment will be increased. The construction of power supply can greatly increase the capacity of clean energy consumption. The scale of wind power development in the country is expected to reach 150 million kilowatts.
The UHV test demonstration project has achieved great success. Practice has shown that it is feasible to develop UHV technology and now has the conditions to accelerate the generalization and application. Urgently need to increase construction UHV as a national development strategy, incorporate UHV development into the national “Twelfth Five-Year Plan†development plan, realize the large-scale transfer of energy resources in the western and northern regions to the central and eastern regions, and promote the accelerated development of clean energy. Make full use of it to promote the transformation of China's power development mode, and support the sustainable development of the economy and society with the sustainable development of the power industry.
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