According to the latest report from market research firm Rho Motion, by June 2025, there will be 109 grid-level battery energy storage projects in commercial operation around the world, with a total installed capacity of 7.96GW/22.17GWh , of which more than half are from China. In the first half of 2025 , energy storage deployment showed a significant growth trend.

Rho Motion's "Battery Stationary Energy Storage Monthly Database" shows that the data set a record for the highest single month so far in 2025 , an increase of about 19% from the previous month .

Data shows that the total installed capacity of global battery energy storage systems (BESS) reached 86.7GWh in the first half of 2025 , a year-on-year increase of 54% . The agency said that the current annual reserve project capacity is slightly over 412GWh .

China and the Middle East account for 89% of global new installations    

During June , China added 4,343MW/11,193MWh of new energy storage projects, accounting for 54% of the global total .

Rho Motion pointed out that three projects with a capacity of over 1GWh were put into operation in China that month, among which the " wind + solar + storage " integrated project of the Huadian Hami Tianshan North Foothills New Energy Base ( located in Xinjiang ) was particularly eye-catching. The technical integrators of the project include Haibosichuang, Sungrow Power Supply and China Huadian Group.  

The database shows that Saudi Arabia contributed 35% of the world's new installed capacity that month , thanks to three giant energy storage projects ( with a total capacity of 7.8GWh) deployed by inverter and energy storage system supplier Sungrow in Najran , Asir and  Jazan .  

It should be noted that the general contractor of the project , Saudi engineering procurement and construction (EPC) company Algihaz Holding, has not yet issued an official announcement. Dr. Ahmed Elbaz , the company's energy storage project manager , posted on LinkedIn in mid-June that the project has been completed and will soon provide fast frequency response (FFR) , reactive power compensation (VAR) , black start and peak load shaving services to the Saudi power grid, helping to stabilize the power grid and achieve green transformation .  

However, sources told Energy-Storage.news that these projects have not yet reached full commercial operation.  

In Oceania ( including Australia ) , 436.8MW/878MWh of new energy storage projects were put into operation in June. The main contributions came from :  

-  Western Downs Green Energy Hub Battery Energy Storage Project Phase 1 (270MW/540MWh) using Tesla Megapack system  

-  Ulinda Park energy storage project in the same region (150MW/300MWh)  

According to Rho Motion data, North America added 703.9MW/1,450MWh of energy storage projects in June . Energy-Storage.news reported that large projects put into operation in California, Idaho and Wisconsin during the same period constituted the main increase in the region. It is worth noting that the 2,000MWh energy storage system built by AES Energy in California ( note: not yet fully operational ) was not included in this statistics.  

Future projects

Rho Motion added that five energy storage projects based on semi-solid-state battery technology have made progress in China this month. Three of the projects have entered the EPC bidding stage, one project has entered the construction stage, and the other project that has been put into commercial operation is China Power Construction Zhejiang Longquan Anren Town Changwen Energy Storage Project Phase II (100MW/200MWh). The remaining four projects have a capacity of more than 800MWh and are scheduled to be put into operation between 2026 and 2027.

In June 2025, the global new reserve project capacity reached 59GWh, a year-on-year increase of 226%. Looking at the first half of 2025 as a whole, the total amount of new reserve projects in the world will reach 343GWh, an increase of 62% over the same period in 2024.