Wang Haoxiang: Thinking about long-term optimization and development

"For three consecutive years of proposals, I have been locking in clean energy." Wang Xiaoxiang, member of the National Committee of the Chinese People's Political Consultative Conference and general manager of Sichuan Electric Power Co., Ltd., who has been dealing with energy for many years, said to reporters, "If you don't have electricity, what do you think? With electricity and electricity, it is necessary to think about how to achieve long-term development and optimize development."

Electrical energy replacement to ease the "fog and haze" pressure

At present, the energy development pattern is undergoing profound changes. Wang Yuxiang said, "Replacement through electrical energy can not only increase energy efficiency, but also reduce emissions and alleviate 'smoke pressure'."

“Electric energy is the cleanest secondary energy source, and the cleanest source of electricity is water and wind.” He said that there are still a large number of low-efficiency, high-emission fossil energy sources in the end-use energy market. It is necessary to proceed from a strategic perspective and encourage the development of non-fossil energy such as wind power, photovoltaic power generation, hydropower, and nuclear power, and vigorously promote the replacement of traditional fossil fuels with clean energy.” Wang Xiaoxiang told reporters that he proposed to include energy substitution in the terminal energy consumer market into national energy. Development strategy, at the same time, relevant departments as soon as possible to study and formulate supporting policies and measures supporting the replacement of electricity, comprehensive use of legal, administrative, economic and other means to encourage all parties in society to actively participate in the work of energy substitution. In order to ensure the smooth progress of this work, he believes that the state should incorporate the proportion of electric energy in the total amount of local energy consumption into the local government's energy-saving and emission reduction index system for quantitative assessment, and make a fuss about the mechanism.

Hydroelectricity needs extra high pressure

“After the large-scale development of new energy power generation, it will also require convenient transportation channels to deliver the electricity generated.” As photovoltaic power generation, hydropower, and wind power are characterized by intermittent, random, and volatility, the power generation from the power grid is increased. To balance the difficulty of control, Wang Haoxiang suggested that the construction of UHV power grids be accelerated in the southwestern region to enhance cross-regional transmission capacity.

What is an UHV grid? Wang Haoxiang made a vivid metaphor, "is the 'highway' of the grid." He explained that it is to optimize the allocation of electricity in a wider range. For example, if electricity is to be delivered to Shanghai, the conventional 500,000-kw EHV line will not work. Under this circumstance, UHV power grids will emerge.

Wang Yuxiang stated that the Central Government is now vigorously promoting the “One Belt and One Road” strategy. Affected by this, the energy industry along the line will develop rapidly, and the construction of UHV power grids can deliver more clean energy from the west to the central and eastern regions as well as western China. Regional resource advantages are accelerated to economic advantages.

“If the UHV power grid cannot be built, the previously built photovoltaic power stations, hydropower stations, and wind power stations will be wasted. This is the biggest waste.” Wang Xiaoxiang revealed that the State Grid Corporation of China has built a ±800 kV power plant in Sichuan. Xiangjiaba - Shanghai, Jinping - Sunan, Xiluodu left bank - West Zhejiang three UHV DC, UHV line under construction in the transport, substation (changing) capacity of more than 15,000 km and 150 million kVA (kWh ) for nationwide distribution

It lays the foundation for setting clean power resources.

Accelerate the construction of Southwest Grid

With the continuous development of major energy bases in the western region, Wang Xiaoxiang began to think about how to construct the Southwest UHV power grid.

According to the plan, Wang Yuxiang stated that according to the plan, the Southwest UHV power grid will be composed of Sichuan, Yunnan, and Tibet power grids to form a strong sending end power grid, and will be back-to-back networked with the Hubei, Hunan, Henan and Jiangxi provinces, so that the State Grid will form a three-end transmission (Northeast, Northwest, Southwest) ), a receiver (Central China) a total of four new patterns of synchronous power grid.

To this end, he suggested that the relevant state departments incorporate the Southwest UHV power grid plan into the national “13th Five-Year Plan” power development plan and accelerate its implementation. “By building a strong UHV backbone grid and building a Southwest Grid, we can realize the transition from grid development mode to interconnection, coordination and mutual economic transformation, and improve the quality of urban and rural power supply. Therefore, modern distribution network construction should be fully enhanced.”