In November 2016, the Yalong River Yangfanggou Hydropower Station achieved major river closure.
In 2018, when the Ya-Zhong-Jiangxi ± 800kV HVDC Project (hereinafter referred to as "Ya-Zhong-HVDC"), which shoulders the heavy responsibility of transporting hundreds of billions of clean power every year, is still an unresolved issue Recently, this reporter confirmed that many parties confirmed that this repeatedly came out 'approved within the year' but 'every year not approved' when the line started there is still no news, 'Thirteen Five' whether the operation is also unknown during the operation .
Some experts estimate that after the hydropower in the middle reaches of Yalong River is completed and put into operation, the direct economic loss caused by abandoned water will reach 6 billion yuan if the direct current of Yajiazhong can not reach the ground simultaneously. The persistent problem of abandoning water in southwest China for many years will be further aggravated.
Under the background of all parties continuing to implement the concept of 'green development', why is clean and low-carbon hydropower 'no one wants?' Why is this Sichuan hydropower channel into a 'hard-to-land' predicament?
'Jiangxi deposit in dispute
The Yalong River is one of the most abundant rivers in China for hydropower resources and ranks third among the 13 hydropower bases planned in the country. Among them, the planned total installed capacity in the middle reaches is 10 million kilowatts and a total of 7 power stations, of which 4 are planned to pass Ya in DC delivery, involving installed 750 million kilowatts.
It is reported that, as early as during the 11th Five-Year Plan period, State Grid Corporation of China will be Ya-Chuan DC as Yalong River middle reaches of the power plant supporting the outgoing channel, but should be planned first. Due to the fact that the 11th Five-Year Plan for Electric Power Development has not been promulgated, there is no concrete arrangement at the national level for this UHV transmission line.
The reason why the grid is to elect Ya-Chiah DC in Jiangxi is that Jiangxi is the only province in central China without any special high-voltage depot, and currently the per capita installed capacity is much lower than the national average, but Jiangxi Electric Power Bureau Electric Power Department earlier by mail Told reporters in the form of "During the 13th Five-Year Plan, Jiangxi Province does not have the space to admit Sichuan's electricity to Jiangxi."
According to the reporter, the feasibility study report of Yazhong DC Project was handed over to the Power Planning and Design Institute for review as early as October 2015. However, due to the long-standing controversy over the landing issue, so far no construction has been started yet. However, River Basin Hydropower Development Co., Ltd. (hereinafter referred to as "Yalong River Company") and State Grid agree that the project should have its place in Jiangxi and have completed the corresponding construction plans.
Public figures show that at the end of the 12th Five-Year Plan period, the per capita power installed capacity of Jiangxi Province is 0.53 kilowatts, only about half of the national average. At the same time, Jiangxi Provincial Power Grid has formed a 500-kilovolt backbone network. Reporter, from the power side 'a game of chess', grid side 'a network', the demand side 'a price' consideration, Jiangxi is the best landing Ya-chung DC, can effectively promote grid interconnection; from enhancing the ability to optimal allocation of power grid Speaking, elegance DC in the election of Jiangxi 'more appropriate'.
According to the introduction of the State Grid Corporation of People's Republic of China, State Grid has made key planning for Ya-Zhong DC in its 13th Five-Year Plan.
The responsible person of Yalong River also told reporters that after the completion of Yazhong DC, the power of Sichuan Hydropower Base can be directly supplied to Jiangxi Load Center to improve the power transmission channel of the entire Panxi section (Panzhihua-Xichang area) Resource allocation. "Because of the high degree of closeness in Central China Power Grid, regardless of the location of the power grid in which location in China, Sichuan Power Consumption can be placed in the entire power grid, so Ya-chun DC point Jiangxi Province does not mean that Jiangxi It must be 'eaten' alien Sichuan.
In the "12th Five-Year Plan for Yalong River Basin Development", Yalong River Co., Ltd. has also made it clear that the fourth round of outsourcing of UHV DC project in Sichuan Province (that is, Yazhong DC) intends to build a one-time transmission capacity of 10 million kilowatts ± 800 kV UHVDC. The planned starting point is the middle reaches of Yalong River in northern Sichuan Province, passing through Sichuan, Yunnan, Guizhou, Hunan and Jiangxi provinces. The initial planned site is Fuzhou in Jiangxi Province. 'Put into production.
It is noteworthy that due to the lack of national power planning during the 11th and 12th Five-Year Plan period, Ya-Ch'ang DC during this period did not enter into the state-level construction planning. In the already released 13th Five-Year Power Plan There is still no clear answer on the question of whether China-DC direct-current construction and construction will be completed. In response, Zhang Botting, deputy secretary-general of China Society of Hydroelectric Power Generation, explained in an interview with reporters that the landing of Yazhong DC was initially set at However, due to the large number of coal-fired power projects planned and constructed in Jiangxi Province, the Ya-Zhong DC Project was canceled during the 12th Five-Year Plan period and the National Energy Administration also agreed with the Jiangxi practice.
Wang Yinan, a researcher at the State Council Development Research Center, said in an interview with reporters that if the crucial landing issue continues to be blurred, the transmission channel of Yazhong DC will not work and will lose about 30 billion kilowatt-hours of clean power every year. "In other words, Ya DC and Yalong River power development success or failure is directly related to the construction of the Yangfanggou power station project in 2015 as an example, if the project is completed and put into production when the outgoing channel is still in the paper, the Sichuan Provincial Hydropower ' It will further aggravate the situation.
'Jiangxi what's going on'
According to the reporter, in the two sessions of the National Committee of the CPC in 2017, Sichuan Province reported that the issue of special medium-high-voltage transmission in Ya-zhong, as a 'No.1 proposal,' has aroused great attention from the national level. And proposed that AC-DC should 'fall to Jiangxi and radiate to Central China.' In the same year, State Grid also organized the Promotion Meeting of Preparation for the Construction of Elevation-DC Project of China on many occasions.
Compared with the positive attitude shown by the power supply and power grids, Jiangxi is quite cool about the attitude of Ya-chung DC.
'As of now, Jiangxi Provincial Bureau of Energy did not receive the relevant documents from the state, informing the planning of Accor and DC initially planned to set foot in Fuzhou, Jiangxi Province.' Jiangxi Provincial Bureau of Energy in response to a written interview with reporters, 'At present, Jiangxi's power system size (In 2016, the electricity consumption is only 118 billion kwh and the maximum electricity load is less than 20 million kilowatts). If UHV is accepted in a short period of time, Jiangxi will become the province with the highest ratio of power receiving in the country and the power system will be in great danger. Therefore, we Consider and have repeatedly reported to the state and lead to extraterrestrial power through extra-high voltage in the middle and late part of the "14th Five-Year Plan" period.
Electricity Department of Jiangxi Provincial Energy Bureau further pointed out that at present, Jiangxi has been included in the national plan during the 12th Five-Year Plan period and approved the 8.64 billion kilowatts of non-put-into-out thermal power projects to be included in the state's 13th Five-Year Energy and Power Planning Project, Can Shenxiang fog Pingxiang coal polygeneration demonstration project. 'Thirteen Five' period will be ordered to promote the construction of these have been planning thermal power projects. Corresponding to this is published in June 2017 in Jiangxi Province 'Thirteen Five 'Plan proposed that' speed up the formation of coal express transport channels into Gan, focusing on promoting Mengxi - Central China coal transport corridor. '
One issue that can not be ignored is that since the state implemented the decentralization of power in 2014, not only did the national coal power construction not slow down, but on an unprecedented climax of construction, there were 120 thermal power projects launched in various parts of the country in 2015, with an additional installed capacity of 7,000 In the early warning of the national thermal power construction issued by the National Energy Administration, all of Jiangxi is green, which means that the thermal power launched in Jiangxi is not illegal.
However, Wang Yinan said in an interview with reporters: "Jiangxi Province prefers to build a new thermal power plant in the province and clean water and electricity next door to Sichuan Province, Jiangxi Province, refusing to highlight the direct current in Ya-chung At present, our country is pushing forward with a serious institutional mechanism of 'energy revolution.' In other words, local governments work independently and only consider the GDP of their own province, ignoring energy solutions that are optimal for both the province and the country as a whole.
Wang also believes that in the context of low-carbon energy development, thermal power to further expand the direct consequence of a serious squeeze out of renewable energy market space, the construction of inter-provincial power transmission channel was stranded, the output of electricity out of the province, Barriers and local protection have become serious fetters of clean energy development.
How to solve the contradiction
According to the Paris Agreement, net zero emissions will be achieved after 2050. In the future, anyone who joins hydropower will account for too much cheaper, otherwise a large amount of wind power and PV will not meet the energy needs of the province with the cooperation of a certain amount of hydropower . "Zhang Boxing said that with the overcapacity of coal and electricity across the country, provinces are naturally reluctant to absorb hydropower and want to keep their GDP in the province." If more carbon tax is levied, Jiangxi may no longer consider building coal transportation Channel, but instead go to Ya in the DC drop point.
In addition to the dispute between the 'external hydropower' and the 'local thermal power', there are also experts who interviewed said that the landing of the ACDC project has not only solved the issue of inter-provincial barriers but also coordinated the relations between the central government and local governments The issue of how to carry out the major national strategy.
A number of respondents expressed a similar view: the national strategy still requires coordination at the national level, and at the very least is implemented by the state ministries and commissions and the State Council. After all, when the interests of various provinces are involved, the problems may become difficult to handle.
'To break the barriers between provinces, so that all levels of government' bravely responsible 'and enhance the overall awareness of the central government's authority must not be absent,' Wang Yimin told reporters.
However, a senior expert on power planning told reporters that such major projects as Ya-Zhong HVDC must be 'you and I would like to'. Only Sichuan and the power grid companies, agreed by both sides, can the National Energy Administration push it forward. Otherwise, Therefore, at the beginning of the planning and design, we must fully respect the opinions of all parties, especially the opinions from the end, can we truly realize the optimal allocation of resources, and we can not engage in hard-working arrangements. "
Social Assessment: Clean Energy Consumption Needs to Stand High
At present, hydropower, wind power and solar power installed capacity in China ranks the first in the world, but the power supply is relatively surplus now, more clean energy and more difficult to consume. 'Kw' can not be converted to 'Kwh' Become a chronic illness plaguing the renewable energy industry for many years.
The latest statistics show that at present China's clean energy abandoned power has reached as high as 110 billion kilowatt hours, of which the most outstanding problem of discarded water in 2016 only in Sichuan, Yunnan, two major water and electricity hydropower in about 50 billion kilowatt hours, Equivalent to half of Beijing's annual electricity consumption.If YACDC can not be put into operation on schedule, several hydropower stations in the middle reaches of Yalong River, which will be put into operation in the coming years, will face the dilemma that at least 30 billion kWh of electricity can not be delivered each year. This is already very serious The problem of abandoned water will be further deteriorated.
In view of this, the National Energy Administration will promote clean energy consumption as a key task in 2018, and set a very ambitious goal - by 2020, basically solve the problem of clean energy throughout the country.
'Vegetable farmers will not eat their own food, we send their own hydropower also digested.' Sichuan, a hydropower business owner expressed the voice of the industry in Sichuan and Yunnan hydropower industry. Satisfied choice.
However, sending out clean electricity through transmission channels involves a series of questions such as 'Where to send', 'How to send', 'How much to send', etc. According to the Sichuan-based Sichuan Project that delay the landing of the project, There are many issues such as hydropower development companies and power grid companies that need to be fully considered in consideration of policy constraints, power supply and demand, peak regulation capability and economic efficiency, and the scientific selection of the landing points of transmission lines and the rational determination of supporting facilities Power scheme.
It is not difficult to see that the key to solving the problems of waste water in Sichuan and Yunnan is to increase the allocation of hydropower resources across provinces and regions and involve multiple market players. It is difficult to resolve interest demands based solely on the coordination of local governments, power generation enterprises and power grid enterprises Inconsistent with the contradictions caused by the national level at this time can co-ordinate the overall situation in a higher dimension, coordination of multi-stakeholder interests is crucial.
It is foreseeable that if the construction of the outbound channel is not in place, the problem of abandonment of the southwest will continue to intensify. During the 13th FYP, Sichuan and Yunnan planned and put into operation 25 million kilowatts of large hydropower, accounting for about 2/3 of the newly added conventional hydropower in the country In the midstream of Yalong River in Sichuan, a new UHV DC transmission channel is needed to send electricity to central China. Yunnan relies on the Wudongde power station and the middle reaches of the Jinsha River to supply hydropower to Guangdong and Guangxi through a new UHV DC transmission channel. Regardless of whether these hydropower delivery channels will eventually regain the fate of Accor DC, it is imperative to coordinate the identification of affected provinces as soon as possible and speed up the preparatory work for channel construction so as to avoid the embarrassment of 'bringing the power into operation but nowhere to send electricity.'
In fact, the operational experience of the Three Gorges, Xiluodu, Xiangjiaba and other large-scale hydropower stations has proved that large-scale hydropower stations across the river basin must be led by the state and co-ordinated to study their solutions for consumption and power grid construction and to be used in the national power planning clear.
Strategic planning of high-rise building is important, long-term perspective is essential.
Hydropower delivery channel construction must advance planning, coordinated with the hydropower development coordination.Hydropower construction period is long, especially in the delivery of large hydropower station, a short four or five years, long ten years.Therefore, the hydropower delivery channel planning demonstration must A forward-looking sense, to meet the reasonable flow of electricity on the basis of the study to determine the channel construction program to ensure that power transmission channels and power plants simultaneously put into operation to protect hydropower consumption.
In his speech on 'Energy Revolution,' General Secretary Xi Jinping emphasized that 'we must find a way to conform to the energy trend in the strategic height of national development and security, reviewing the situation and taking advantage of this trend.' 'We should make concerted efforts for the long-term achievements in promoting clean energy consumption, It is the way to realize energy transformation and implement the trend of green development.