This summer, a heatwave swept across both sides of the Yangtze River, breaking the national electricity load record four times. The load in the State Grid's operating area reached a peak of 1.27 billion kilowatts twice. During peak hours, the single response of Shanghai's virtual power plant soared to 1.6477 million kilowatts, like adding a medium-sized thermal power plant out of thin air. Beyond the surface, a quiet and profound transformation is quietly taking place from the depths of the power grid.

The main configuration is twisted into a strand of rope

Strengthen the main network, build resilient distribution networks, and activate microgrids. Chongqing has been experiencing high temperatures for 25 consecutive days, with the load surging to 31.4 million kilowatts; More than two thousand kilometers away, the 6 million kilowatts of electricity from the Shage Desert Base in Xinjiang cross mountains and rivers into Chongqing, with one transmission and one collection, working together for thousands of miles to become a footnote to optimizing energy allocation nationwide. On the 15th Five Year Plan, 15 new cross regional direct current circuits were put into operation, with a cross provincial transmission capacity of 500 million kilowatts. The Fujian Jiangxi back-to-back interconnection project is in full swing, and after completion, 3 million kilowatts will be transmitted in both directions. Jiangsu intelligent distribution network fault location takes 2 minutes and self-healing takes 8 minutes. The grid type energy storage system in Ta County, Pamir Plateau, with a capacity of 15 megawatts and 30 megawatt hours, has been completed, instantly switching to isolated islands to ensure uninterrupted power supply for Class I loads for 72 hours. The border power grid has transformed from a fragile peripheral to a self-healing center.

New technology makes new energy obedient

At the Hangzhou dispatch hall, dispatchers lightly called out the light engine, and the operation status of 9517 transmission lines and 504 substations was rapidly changing. One minute later, optimization strategies were generated, and the efficiency of peak summer dispatch was increased by three times, and the power supply capacity was improved by 18.2%. Gansu's energy storage grid connected installed capacity has exceeded 10 million kilowatts, with an annual consumption of 7.55 billion kilowatt hours of green electricity, 930000 tons of provincial standard coal, and nearly 5.9 million tons of carbon dioxide emissions reduced. The installed capacity of new energy in northern Hebei is 83.0373 million kilowatts, accounting for 74.24%, ranking first in the country. Zhangbei flexible grid type open-loop control, green power transmission increased by 30%, achieving 4.5 million kilowatts of full power. Jinhu Solar Energy Storage Power Station millisecond level and off grid conversion. Keywords: New Power System, State Grid, Green Transformation

Cars and buildings have become power sources

The Shanghai virtual power plant platform has been connected to 72 operators, with a total declared adjustable capacity of 2.8566 million kilowatts. On July 16th, the city wide response was launched, setting a record of 1.6477 million kilowatts. The response has entered the hourly level from the next day, with an average accuracy of 89%. During the evening discharge operation in Shandong, a total of 2338 trains were discharged from 31 demonstration stations, with a discharge capacity exceeding 40000 kilowatt hours, guiding car owners to reverse power transmission during peak hours. Jiangsu Lianyungang pure electric tugboat discharged stably for 7 hours at 80 kilowatts. Qinghai Computer and Electronic Collaborative Cross Provincial Dispatch saved about 66% of electricity bills for both regions on the same day, and increased equipment utilization from 65% to about 87%. A building in Shanghai, a car in Shandong, and a server in Qinghai have all become resources that can be called upon by the power grid.Editor/Min Jing