Core Insights - The Chinese energy storage bidding market experienced explosive growth in June 2025, with a monthly bidding volume reaching 53.19 GWh, marking a new high for the year and showing significant year-on-year and month-on-month increases [1][2][3] Bidding Volume and Trends - In June 2025, the newly added bidding volume exceeded 50 GWh, with a total of 9.05 GW/53.19 GWh, representing a year-on-year increase of 58% and 282%, and a month-on-month increase of 23% and 147% [2] - The average energy storage duration for the month was 5.9 hours, indicating a trend towards longer-duration storage solutions [2] Project Types and Distribution - EPC projects dominated the bidding landscape, with a newly added bidding volume of 7.71 GW/22.81 GWh, showing year-on-year increases of 193% and 248% [5] - Large-scale projects of 800 MWh and above were concentrated in regions such as Xinjiang, Guangdong, and Ningxia [5] - Framework and centralized procurement projects accounted for 53% of the total energy capacity, highlighting a shift towards these project types [6] Major Players and Market Share - The top three bidding entities in June 2025 were China Energy Engineering Group (25.54 GWh), Electric Equipment Group (7.248 GWh), and Xinjiang Energy Group (4 GWh) [9][22] - China Energy Engineering Group led the market due to its significant procurement of 25 GWh of energy storage systems [9] Winning Bids and Pricing Trends - The total newly awarded contracts in June reached 5.33 GW/17.2 GWh, with EPC projects being the majority [11] - The average bidding price for 2-hour energy storage systems was 0.51 yuan/Wh, reflecting a downward trend [14][15] - The bidding price range for 2-hour energy storage systems was between 0.46 and 0.72 yuan/Wh, with a weighted average of 0.51 yuan/Wh, indicating an 8% decrease month-on-month [15][17] Leading Companies in Energy Storage Systems - Ganfeng Lithium led the energy storage system bidding with a total of 1.2 GWh, followed by BYD with 600 MWh and State Grid with 240 MWh [19] - The leading EPC bidders included China Electric Power Construction Group and its consortium, State Power Investment Corporation, and China State Construction Engineering Corporation [22]