State Grid Shizuishan launches summer peak power supply assurance work

The spring power maintenance campaign will soon be concluded, ushering the power grid into the summer peak power guarantee period.

The maximum reliable power supply capacity has reached 6.35 million kilowatts, ensuring ample supply. While the power supply reliability of partial grid sections will decline during the outage of certain equipment, the overall power supply landscape features sufficient overall capacity alongside weakened reliability in localized areas.

State Grid Shizuishan Power Supply Co (State Grid Shizuishan) has formulated and rolled out targeted key tasks by focusing efforts on six core areas to safeguard the stable operation of the power grid and reliable electricity supply throughout the summer peak period.

The company is implementing its power guarantee responsibilities and consolidating organizational foundations. It specified 18 key measures covering five major dimensions. A dedicated working group mechanism for power supply guarantee has been activated to carry out special initiatives, including new energy generation forecasting, refined supply-demand balance management, and coordinated power support for main and distribution networks, jointly laying a solid foundation for power security.

Another goal was to coordinate power grid construction and risk control to hold fast to the safety bottom line. Priority is given to advancing projects such as the Dafeng Substation upgrade and the renovation of the 220-kilovolt Zhenglan Circuit Line A. The company will arrange equipment outages in a scientific manner. It will strengthen pre-judgment on power outages affecting residential and critical loads, refine emergency response plans for grid faults, and adopt multi-pronged measures to reinforce overall grid safety.

The company will boost power output from power sources for stable supply and optimize supply-demand balance. Rolling analyses of power and electricity balance will be conducted to align safe grid operation with the efficient utilization of new energy and energy storage facilities throughout the summer.

The company plans to strengthen the operation and maintenance management of primary and secondary power equipment to underpin stable grid operations. Seasonal maintenance and defect prevention measures will be implemented. Comprehensive inspections and rectification will be carried out to eliminate hidden dangers that may lead to full substation blackouts or protection system malfunctions.

The company will ramp up distribution network support for residential power use and secure basic electricity demand. Tracking rising water pumping and cooling loads, the company will readjust load distribution on distribution networks in advance. Special attention will be paid to safeguarding residential loads served by single-radiation lines, overloaded circuits and other vulnerable distribution equipment, as well as conducting tests on the one-click load transfer function.

The company also aims to upgrade emergency response and safety information reporting mechanisms to boost rapid response capabilities. Emergency plans and on-site disposal protocols will be updated on a rolling basis, with regular special emergency drills organized. Strict compliance with emergency information reporting standards for electrified railways and major power consumers will be enforced to ensure the timely, accurate and standardized submission of work safety data.