lens
+38 044 591 08 73 +38 050 441 70 20
UK EN RU
Company
Services
Energy engineering Joining objects Business directions Gifts for power engineers
News Career
Projects
Company's Projects Projects for sale
Contacts
burger

Top 10 battery energy storage (BESS) installations in the world by capacity (2025)


 

IKNET is an engineering company specializing in advanced solutions for the energy sector. We understand the importance of integrating modern technologies, particularly energy storage systems (BESS, UZE), for grid stability and efficiency, and we provide scalable services tailored to client needs.

Our ranking of the world's largest BESS systems clearly demonstrates the trends and potential of this market. It is designed to help Ukrainian companies and investors evaluate technological solutions and capacity scales, as well as highlight the potential of renewable energy sources. IKNET is happy to help domestic businesses realize these opportunities, as we develop and implement BESS projects in Ukraine.

Below is a ranking of the ten largest operational BESS by capacity worldwide as of September 2025.

Top-10 BESS in the World

  1. Edwards & Sanborn Solar + Energy Storage (USA, California, 821 MW)

    Located in Kern County, California, Edwards & Sanborn is the largest BESS in the world with a capacity of 821 MW and 3,287 MWh, commissioned in 2024. It is integrated with solar projects and ensures the stability of the California grid (CAISO).

  2. Blythe / McCoy / Arlington (BAM) (USA, California, 812 MW)

    Located in Riverside County, California, BAM is a portfolio of BESS with a capacity of 812 MW and 3,248 MWh, commissioned in 2025. It is integrated with NextEra's solar projects and enables shifting energy from daytime to evening hours for the California grid (CAISO).

  3. Nova Power (USA, California, 680 MW)

    Located in California, Nova Power is a stand-alone BESS with a capacity of 680 MW and 2,720 MWh, commissioned in 2025. Developed by Calpine, it supplies energy to Southern California Edison and others.

  4. Collie Battery (Australia, 560 MW)

    Located in Collie, Western Australia, Collie Battery has a capacity of 560 MW and 2,240 MWh, commissioned in July 2025. Developed by Neoen, it has two phases for grid stabilization.

  5. Desert Sunlight BESS (USA, California, 530 MW)

    Located in California, Desert Sunlight BESS has a capacity of 530 MW and 2,120 MWh, commissioned in 2024. Developed by NextEra, it is the company's third largest BESS.

  6. Bisha BESS (Saudi Arabia, 500 MW)

    Located in Asir Province, Saudi Arabia, Bisha BESS has a capacity of 500 MW and 2,000 MWh, commissioned in 2024. Developed by Saudi Electric Company with BYD batteries, it is optimized for desert conditions.

  7. Huadian Xinjiang Kashgar BESS (China, Xinjiang, 500 MW)

    Located in Kashgar, Xinjiang, Huadian Xinjiang Kashgar is a stand-alone BESS with a capacity of 500 MW and 2,000 MWh, with the first phase commissioned in July 2025. Developed by China Huadian, with plans to expand to 1,000 MW.

  8. Moss Landing Energy Storage (USA, California, 450 MW)

    Located in Monterey, California, Moss Landing has a capacity of 450 MW and 1,800 MWh, expanded in 2024. Developed by Vistra with Tesla Megapack, it is one of the first large BESS in the USA.

  9. Manatee Energy Storage Center (USA, Florida, 300 MW)

    Located in Palmetto, Florida, Manatee has a capacity of 300 MW and 1,200 MWh, commissioned in 2021. Developed by Florida Power & Light, it is one of the first large projects on the US East Coast.

  10. Gateway Energy Storage (USA, California, 250 MW)

    Located in San Diego, California, Gateway with a capacity of 250 MW and 1,000 MWh was launched in 2024. Developed by LS Power with Tesla Megapack, it supports grid stability.

Note on Other Projects

  • Darden Clean Energy Project (DCEP) (USA, California, 1,150 MW): Approved in June 2025, first phase launch in 2026, will become the largest BESS in the world.

Regional Distribution

USA dominates with 6 projects in the top-10, mainly in California, thanks to the state's ambitious climate goals and strong incentive programs.

Saudi Arabia has 1 project, reflecting rapid energy infrastructure development under Vision 2030.

China has 1 project in the top-10 but leads globally by number of projects (67% of the world market).

Australia has 1 project — Collie Battery.

The scale of these global BESS confirms that energy storage systems are an integral part of the modern power system and shows how innovation is changing the energy market. If you are interested in implementing advanced BESS solutions or other energy initiatives in Ukraine, IKNET is ready to provide a full range of services — from technical audit and project development to implementation and commissioning.

Sources


15.09.2025