The development of a smart grid with UHV backbone grids is the future
Develop a strong smart grid with UHV as the backbone grid and create a nationwide energy resource optimization and deployment platform that can fundamentally improve energy development and utilization efficiency, promote clean energy development and utilization on a large scale, and effectively strengthen environmental protection and reduce pollution emissions. Effectively promote the common development of the eastern and western regions. Feng Jun, general manager of Shanghai Electric Power Company, appealed.
Feng Jun said that the development of UHV is conducive to protecting the ecological environment. UHV makes possible the large-scale delivery of clean energy. Large-scale development and utilization of large-scale hydropower, nuclear power, renewable energy (wind energy, solar energy, etc.), and other clean energy sources can directly optimize China's energy structure, promote the process of low-carbon energy, and have significant environmental benefits. UHV provides strong support for the development of large-scale power supply bases and the excessive treatment of PM2.5. The development of large-scale coal and electricity bases helps to centralize the pollution and emissions brought about by coal-fired power generation through measures such as desulphurization, denitrification, and dust removal; it helps to promote the integrated development of coal-electricity and the development of recycling economy, and realizes coal development and utilization, and economic, social and ecological environment. The coordinated development. The importation of UHV power to the eastern and central regions of the country will greatly promote the replacement of electricity with other sources of energy and further reduce urban air pollution. UHV will save a lot of land resources in the area where electricity is consumed. In recent years, land resources in the eastern and central regions of China have become increasingly tense, and it is difficult to continue to build large-scale thermal power plants on the spot to meet the demand for electricity. Long-distance power transmission from the northwest to the east-central load center has become an inevitable choice.
Feng Jun believes that the development of UHV will also help optimize the allocation of energy resources. It is reported that over a long period of time, China's energy resource allocation mode has relied excessively on coal transportation, and electric power development has been dominated by provinces (autonomous regions) and self-balancing, and transportation pressure has been increasing. In 2011, the national railway coal shipment volume reached 2.27 billion tons, which accounted for 58% and 65% of the railway freight volume and coal production, respectively, which increased by 7 and 5 percentage points respectively compared to 2006; and the coal transportation of coal exceeded 500 million tons. It is a high-level fuel and transports low-value fossil fuels. The highway continues to be heavily congested and overwhelmed. In addition, there is a power plant every 30 kilometers along the Yangtze River and every 10 kilometers from Nanjing to Zhenjiang. The layout of power stations is becoming more and more intensive, the choice of site becomes more and more difficult, and the problem of environmental pollution has become increasingly prominent.
It is reported that the development of UHV and the construction of Sanhua Synchronous Power Grid can achieve various networking benefits. It is estimated that by constructing UHV and smart grids by 2020, new installed capacity will be reduced by more than 30 million kilowatts, investment will be saved by more than 100 billion yuan, annual water discharge capacity will be reduced by more than 34.3 billion kilowatt hours, and wind capacity will be reduced by more than 37.2 billion kilowatts. At that time, it was equivalent to saving about 31 million tons of coal.
The development of UHV will help promote the joint development of the eastern and western regions. China's central and eastern regions have a relatively developed economy but lack of energy resources, while the western region has abundant coal, hydropower, and wind power resources. Through the U.S. West-East Electricity Transmission, on the one hand, it can reduce the environmental pressure in the central and eastern load center and reduce environmental losses. Through the overall planning and construction of UHV power grids and coal-fired power stations in the west, 2020, the eastern region can reduce sulfur dioxide emissions by 550,000 tons. In the year, the country can reduce environmental loss by 4.5 billion yuan per year; on the other hand, it can speed up the transformation of western resource advantages into economic advantages, and introduce eastern capital, advanced technology, and first-rate talents in the western region through counterpart support from the eastern and western regions. Advanced environmental protection energy bases and UHV power transmission facilities will make up for funding gaps in environmental governance, accelerate economic development in the western region, and effectively improve the people's livelihood, employment status, and environmental pollution.
Feng Jun suggested that the state can incorporate the UHV synchronous grid scheme into the national power grid special plan, accelerate the construction of a strong smart grid that uses the UHV grid as the backbone grid and the coordinated development of the grids at all levels, and give full play to the market allocation of resources to promote the Midwestern region of China. The development of clean energy in a wide range; Accelerate the construction of the UHV grid in the Yangtze River Delta, further optimize the allocation of energy resources in East China, increase the capacity of green power absorption in East China Power Grid, enhance its power supply capacity and withstand major failures.
Feng Jun called for an increase in the level of allocation of green power and resources to Shanghai Power Grid. It is imperative to increase the transmission capacity of foreign exchange channels. It is recommended that the Huainan-Nanjing-Shanghai UHV channel be approved and completed as soon as possible to protect the electricity demand and power supply security of the power grid. On the basis of better realization of clean energy consumption.
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