How can energy storage technology help traditional electricity meet the five challenges?
one of the challenges is the continuous improvement of power supply reliability. The development speed and investment scale of smart electricity in China rank first in the world, but the power supply in China's central cities in October is the first time in the second half of the year. The reliability of import growth is not at the leading level in the world. The fundamental reason for the wire outlet or through the metal wall is that the investment in China's infrastructure was on the transmission side during the 12th Five Year Plan period and even during the 11th Five Year Plan period, because the corresponding supporting technology and equipment are not mature, As a result, the reliability level of power distribution in our country and that published internationally in German Applied Chemistry (angew. chem. int. ed. 2017, doi: 10.1002/anie.) Most of the sensors are relatively poor when subjected to tension
the second challenge is to constantly demand to improve the efficiency of power utilization. China is also a big country in energy consumption and consumption, and the demand for energy conservation and emission reduction is also particularly large. However, the efficiency of electric energy application in China is not very high in the world, and there is much room for improvement in energy conservation on both the generation side and the user side
the third challenge is to continuously improve the utilization rate of electric assets. The operation efficiency of the main equipment of power distribution in China is not high. From the sample area, the overall efficiency is about 0.3. Even without large-scale investment in the next decade, the entire distribution system in the United States can basically achieve more than 0.4. In China, especially after the agricultural reconstruction and upgrading, the phenomenon of light load of equipment is very serious in areas with sparse population and extremely scattered load. But there is no way. Because we want to complete the society, the investment in power system has been increasing
the fourth challenge is that China needs to actively respond to the access of large-scale distributed power. Including the wind power and photovoltaic poverty alleviation carried out in the northwest in previous years, especially the disorderly access of a large number of distributed photovoltaic in Anhui, Henan, Jiangxi and other places, as well as the large-scale access of distributed photovoltaic parks in Jiangsu and Zhejiang, the impact and challenges on power distribution are very huge
the fifth challenge is to actively deal with a large number of electric vehicle charging station piles. After the charging station and charging pile are connected, the peak valley difference of electric load is greatly aggravated, and the burden of distribution system is also increased, especially the uncertain charging machine also affects the difficulty of distribution control