A new energy storage facility, the Dengshuang Energy Storage Power Station, located in Xinjing, Chengdu, is set to officially commence operations by the end of May. The facility has successfully passed its final pre-operation inspection on May 20, 2025.
This massive energy storage unit can hold up to 200,000 kWh of electricity, enough to supply daily power for 5,000 households that consume an average of 40 kWh each per day. In addition, there are four other similar energy storage projects currently under construction in areas such as Pengzhou, Longquanyi, Chongzhou, and Shuangliu.
A representative from the Chengdu Economic and Information Bureau stated that this new type of energy storage will help alleviate the pressure on the power grid during peak usage times, promote the development of related industries, enhance energy security, and support Chengdu’s transition to a green and low-carbon energy system.
The energy storage station can be fully charged in just two hours during off-peak hours using a power of 100,000 kW. During peak periods, it discharges electricity back into the grid as needed. The facility consists of 40 containers, each equipped with a cooling system and multiple lithium iron phosphate batteries arranged neatly inside. Each container acts as a highly integrated energy storage unit.
The rapid response capabilities, high energy density, and precise control of these energy storage stations allow them to balance electricity supply and demand, providing support in case of grid failures. This makes them a vital resource for maintaining and supporting the new electricity system.
Construction of the Dengshuang Energy Storage Power Station began in February 2025 and has now reached the final acceptance phase. The facility’s total capacity of 200,000 kWh can theoretically support 5,000 households for one day, based on the average consumption mentioned earlier.
Looking ahead, the development of new energy storage technologies is critical for establishing a modern power system and promoting a green economic transition in China. In March 2024, the Sichuan Development and Reform Commission and the Sichuan Energy Bureau identified 19 projects as the first pilot demonstration projects for new energy storage, including the facilities in Chengdu.
By the end of this year, Chengdu aims to achieve an energy storage capacity of 1 million kW, with plans to exceed 2 million kW by 2027. By 2030, the city intends to establish a basic form of a new energy system capable of responding to more than 5% of peak load demands.
The Chengdu Economic and Information Bureau reiterated that the new energy storage systems will not only alleviate grid pressure during peak times but will also stimulate the development of upstream and downstream industries, thus creating a complete industrial ecosystem while enhancing energy security and supporting the construction of a sustainable energy framework.
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