An activity to start construction of the Pandaoshan and Huangcheng pumping and storage projects in Zhangye city of Gansu province is held on Oct 27, 2022.

Two pumped storage power station projects

Zhangye Pandaoshan pumped storage Power Station is located in Ganzhou District and Sunan County of Zhangye City, with a total installed capacity of 1400MW. Gansu Huangcheng pumped storage Power Station is located in Huangcheng Town, Sunan County, with a total installed capacity of 1400MW. The designed annual generating capacity and pumped power consumption of the two pumped storage power stations are 1.637 billion KWh and 2.183 billion KWh, with a comprehensive efficiency of 75%. The two power stations mainly undertake the tasks of peak load and valley filling, energy storage, frequency modulation, phase modulation and standby of Gansu power grid and transmission channel.

Pumped storage as the most mature technology and economy at present stage, the optimal way of energy storage, most large-scale development conditions, it can play in the power system peak shaving and valley filling, frequency modulation, phase modulation, such as emergency backup role, both to adapt to the new energy leap development, accelerate the establishment of new type power system important technical support, and stabilizing economy, investment, promote the transformation of the important means. Since 2021, the country's accelerating construction of pumped storage, enrichment of new energy resources of gansu province in the pumped storage important opportunity of development, its Chinese gansu province electric power company actively respond to a nation to realize "double carbon" strategic target and build a new type of power system strategy, the national power grid co., LTD., gansu provincial government under the leadership of, We will make every effort to provide services for the high-quality development of pumped storage.

Gansu power in close connection with the development of renewable energy, electric power development planning as well as the electric power system load demand, space truss structure, distribution factors such as tide, to study and put forward overall demand scale and layout for the development of pumped storage, and organize the development planning department, earthly power supply company, actively cooperate with the government department in charge of energy, and consulting the design unit, High-quality site survey, site selection, planning and other work were completed, and 27 stations in the province with 33.5 million kW installed capacity were included in the National Medium - and Long-Term Pumped Storage Development Plan (2021-2035), among which 12 key projects were implemented during the 145th and 15th Five-Year Plan period, with an installed capacity of 14.4 million kW.

For booster pump storage the early stage of the project is progressing, electricity pivotal role, give full play to the power grid platform in gansu province in July 2021 from mtcsol business backbone of more than 90 people, set up provincial pumping storage flexible team, cooperative cities set up two level, special work team to establish control tracking, weeks, months, supervisory mechanism, active docking design units at all levels of government, project owner and consulting, Helped solve various difficult problems encountered in the implementation of the project and jointly promoted the orderly implementation of the project, which was highly recognized by the project owners. At the same time, the company continues to optimize the electricity business environment, open up a green channel for electricity consumption, quickly complete the project 10 kilovolt temporary power supply access, realize the project temporary electricity service zero doorsteps, zero approval, zero investment, and ensure the construction of a safe and reliable power supply.

At present, Ganzhou and Hexi 750 kV substations have been built around Zhangye Pandaoshan and Sunan Huangcheng two pumped storage power stations, and 750 kV substations such as Wuweibei and Shuiyuan are planned to be built with superior access to the grid. In order to better serve the owners of power projects, Gansu Electric Power has set up a provincial power supply service center and established an external network connection service mode with intensive management, service integration and standard. Online through the whole process of State Grid new energy Cloud to facilitate business without meeting, offline in the marketing service hall set up a power supply service window, to provide power supply enterprises with comprehensive notification, whole-process help, whole-process tracking services.

It is understood that in 2022, Gansu Province plans to approve Yumen Changma, Zhangye Pandao Mountain, Sunan Huangcheng, Wuwei Huangyang, Yongchang and other 5 pumped storage power stations, of which Yumen Changma, Zhangye Pandao Mountain, Sunan Huangcheng 3 plans to start within the year. Yumen Changma Power Station has obtained the approval document of the feasibility study report and met all the conditions for the project approval to start construction. It is expected to start construction in November.

In the next stage, Gansu Electric Power will adjust the work deployment according to the pumped storage plan of Gansu Provincial government, continue to cooperate with the by-election of high-quality sites and resource reserve, and promote the coordinated and healthy development of pumped storage with the new energy industry and the electric power industry. Editor/He Yuting