The National Development and Reform Commission and the National Energy Administration recently issued the "Implementation Plan for Abandonment of Abandoned Abandoned Wind Abandoned Light" and proposed that the problem of Abandonment Abandonment and Abandonment should be effectively solved nationwide by 2020. Among them, the key areas for renewable energy development are to be strengthened Power grid construction to speed up the Southwest and the 'Three North' region of renewable energy power trans-provincial cross-provincial transmission channel planning and construction, giving priority to the construction of transmission of renewable energy-based and the terminal area has to absorb the market space transmission channel.
At the same time, hydropower, wind power and solar power will be preferentially delivered by improving the technical support system of renewable energy dispatch across regions and optimizing dispatching operation of power grids, improving the utilization efficiency of existing power transmission channels, and giving full play to the role of a key platform of the power grid.
Prevention and treatment of air pollution 'four pay five straight'
UHV construction tasks completed next year
The "Program" requires that the "Three Norths" region be put into operation in northern Shanxi - Nanjing, Jiuquan - Hunan, Ximeng - Taizhou, Zhalute - Qingzhou HVDC Transmission Project in 2017 and the third channel in Sichuan and Chongqing in the southwestern region. Of the channel construction tasks basically completed, except Zhalulu - Qingzhou DC project, the other power grid channels have been put into operation, Zarroute - Qingzhou DC project is commissioning, will be formally put into operation in the near future, will be completed on time "program" requirements The commissioning of the task.
Jiuquan - Gansu section of Hunan UHV
At the same time, according to the Plan, the Zhubei-Wannan, Shanghai Temple-Shandong DC transmission project will be put into operation in the "Three Norths" region and the DPC-DC-DC transmission project will be put into operation in the southwestern region in 2018. Among them, the Shanghai Temple- Shandong and Yunnan- According to the relevant plan, the action plan for the prevention and control of air pollution in the country, 'four straight and five straight' UHV will be implemented in accordance with relevant plans Fully completed in 2017, "program" shows that the delay in the completion of this plan.
In this regard, the South Network stakeholders, the company is fully speed up the Yunnan -Hubei UHVDC project is expected to be formed by the end of this plan to send power capacity, completed and put into production by the flood before next year, then, Yunnan 'West to East 'Capacity will increase to 31.15 million kilowatts reporter recently from the Shandong Provincial Power Company also confirmed that due to various reasons, the Shanghai Temple - Shandong UHV DC project to put into operation next year.
Jiangxi is the only one in Central China
No UHV landing provinces
The "Plan" requires that the fourth round of outgoing power transmission channels of Sichuan Hydropower Station and the construction of Wuxuide Hydropower Station, Baihetan Hydropower Station and the upper and middle reaches of the Jinsha River should be accelerated in the later period of the "Thirteenth Five-Year Plan." This is in line with the recent report by the NDRC, The Notice of the Ministry of Energy released the Notice on Promoting Hydropower Consumption in Southwest China (hereinafter referred to as the Circular), which stipulates clearly that State Grid and South Net should start the construction of the Sichuan UHV DC Transmission Project , Wudongde Power Transmission Guangdong Guangxi Transmission Project.
Up to now, there are mainly three ± 800kV HVDC transmission projects in Xiangjiaba - Shanghai, Jinping - Sunan, Xiluodu - Zhexi in Sichuan Passage, and the previously planned Yazhong DC (Yalong River Middle Power Station Project ), That is, the fourth round of Sichuan Hydropower delivery channel for delays due to various reasons started.It has been reported that Ya-chung DC in Jiangxi, but not unified views of all parties, such as Jiangxi Development and Reform Commission had said: During the 13th Five-Year Plan period, Jiangxi Province did not have the space to accept Sichuan Electricity into Jiangxi Province.
Reporter combed and found:
Jindongnan - Nanyang - Jingmen exchange project landed Hubei,
Xiangjiaba - Shanghai DC Project and Huainan - North Zhejiang - Shanghai, Huainan - Nanjing - Shanghai exchange project in Shanghai,
Jinping - Sunan, Jinbei - Jiangsu, Ximeng - Taizhou DC project to fly Jiangsu,
Xiluodu - Zhejiang, Ningdong - Zhejiang DC Project Placement Zhejiang,
Hami South - Zhengzhou DC Project Placement Henan,
North Zhejiang - Fuzhou exchange project landing Fujian, Jiuquan - Hunan DC project landed in Hunan,
Quasi-putty put into operation next year - Wannan DC project fell to Anhui, Jiangxi is currently the only province in east China without UHV.
The South Network who introduced the company will accelerate the Wudongde power transmission Guangdong, Guangxi UHV three-terminal DC project and strive to obtain project approval and start construction by the end of this year, the formation of power transmission capacity by the end of 2019, all completed and put into production by 2020. By then, Yunnan 'west to east' capability will increase to 39.2 million kilowatts.
Enhance UHV capacity to send renewable energy
Is a systematic project
Practice has proved that China's UHV is playing an increasingly important role in promoting large-scale outsourcing of renewable energy sources. In terms of transportation of hydropower, this summer, Xiangjiaba - Shanghai, Jinping - Sunan, Xiluodu - Zhejiang In the fourth year of full-power operation of the West Third UHVDC project in flood season, the power demand of East China Load Center was secured while helping large-scale outsourcing of southwest hydropower.
However, at the same time, due to the lag of related auxiliary power supply, the problem of UHV 'Weak Weak Intersection' was outstanding. The mechanism of China's power market was not perfect. There were inter-provincial barriers to trans-regional power transactions and the growth of electricity demand slowed down. External calls are not positive and other factors, resulting in part of UHV under full power operation, transmission of renewable energy limited.
Take Jiuquan-Hunan DC Project as an example, the National Energy Administration explicitly requested in "Reply on Supporting the Establishment of a New Energy Integrated Demonstration Zone in Gansu Province" to ensure that the annual transmission of new energy sources in Jiuquan-Hunan UHVDC project accounts for more than 40%. And State Grid stakeholders: 'As the sending end of the power supply is not put into operation, this year, Hunan Hydropower Daihak and other factors, the level of Lake UHV power transmission design has not reached the maximum transmission capacity.' In this regard, 'program' clear, The Thirteenth Five-Year Study Increases the transmission capacity of UHV transmission channels with Hami-Zhengzhou, Jiuquan-Hunan as the main functions of transporting renewable energy.
In addition, as a series of supporting measures, the "Program" also requires that the State Grid, South Grid and other power grid enterprises should jointly share relevant information to form a national monitoring and dispatching platform for the transmission and distribution of renewable energy and improve the inter-regional renewable energy power dispatch Technical support system; according to local conditions to carry out cross-basin scenery of the water and fire dispatch operation, to achieve a variety of energy power generation and complementary balance; fully tap the existing cross-provincial transmission power transmission capacity of the channel to meet the system operation safety, , Reduce network redundancy, improve the operation efficiency and management level of the line, and conduct monitoring and evaluation of the actual transmission of renewable energy power. Through these measures, it will effectively solve the problem of abandoned waste light and abandoned light by 2020.