39.31 GWh! As of September 31, a total of 31 offshore energy projects are under construction, with a combined capacity of 39.31 GWh. This information was reported on October 17, 2025, at 15:12 by the market resources through the new energy financial app.
In September 2025, the CESA offshore energy application committee tracked 31 offshore energy projects under construction, which collectively represent a total capacity of 39.31 GWh. The projects involved include various companies such as Nat Power, Spearmint Energy, DTEK, Azer Energy, ACWA Power, Plus Power, Fidra Energy, Grenergy, New Leaf Energy, PGE, Phenogy, Hydrostor, Globeleq, and Zelestra.
The construction locations of these projects span countries such as the United States, Canada, Germany, and several others. Notably, Germany’s Strübbel project has a capacity of 100 MWh and is nearing completion, while efforts are also ongoing for larger offshore energy initiatives.
In the context of renewable energy, Spain will soon commence the construction of its largest battery energy storage project, which will be developed by Nat Power with a capacity of 1 GW/8 GWh. This facility aims to integrate with offshore wind farms and is projected to serve future maritime electrical needs.
This project represents a total investment of 10 billion euros (approximately 13.5 billion dollars) and will initially feature a 4 GWh capacity, which will later expand to 8 GWh depending on demand. The project is scheduled to be connected to the grid by 2028.
Additionally, a new energy project in Germany is set to enhance the energy supply by integrating innovative battery systems. This facility will be developed with a focus on providing stability and quality to the power grid.
The offshore energy landscape is evolving rapidly, with numerous projects being launched globally. For instance, Spearmint Energy has announced a new energy storage system with a capacity of 150 MW/600 MWh, further solidifying its position in the renewable energy sector.
In summary, a variety of offshore and onshore energy projects are contributing to a growing renewable energy capacity across different nations, each with substantial investments and innovative technologies aimed at enhancing energy storage and distribution capabilities.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/tracking-global-energy-storage-projects-39-31-gwh-from-31-projects-as-of-september-2025/
