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How competitive is BESS for data centers, really?
Volta Foundation’s July 2026 report ‘Where Batteries Can Win in Data Center Applications’ shows the two areas where battery energy storage systems (BESS) are winning, four where it is competing and two areas where it’s losing out to other technologies in the data center market.
Why Fidra Energy is building the UK’s biggest BESS project
One year on from reaching financial close on the 2.9 GWh Thorpe Marsh BESS, CEO Chris Elder tells ESS News why the developer has opted to build 1 GW+ battery energy storage projects, how Fidra Energy has secured National Wealth Fund backing, and where the company’s European expansion plans may take it first.
400 MWh BESS in Hamburg begins construction
Swedish company Flower aims to realize the largest storage system to date in a major German city. It is scheduled to enter commercial operation in late 2028, at which point Engie will take over market optimization. A corresponding Flexibility Purchase Agreement has already been signed.
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Tesla deploys 9.6 GWh of battery storage in Q2, 10 GWh Nevada cell factory ‘nears completion’
The electric vehicle company reported flat energy storage growth, quarter over quarter, but nearly 50% growth year-to-date, compared with 2024. Tesla has deployed 37.9 GWh over the past four quarters and is approaching 100 GWh deployed.
“Grid-forming technology is no longer experimental – it’s here and working”
In grids increasingly dominated by renewables, grid-forming technology is emerging as critical tool for maintaining stability and ensuring reliable power system operation. In this interview with ESS News, Rui Sun, Sungrow’s Deputy General Manager-Grid Technology Center, explains how grid-forming works, why it matters, and where the technology is already proving its value. He elaborates on technical challenges, regulatory gaps, and why grid-forming could soon become the new industry standard.
Jul 07, 2025
Bison Energy acquires 1.2 GWh BESS in Italy, pioneers floor pricing in Japan
Just a couple of days after announcing the acquisition of 1.2 GWh of battery energy storage projects in Italy, the Japanese developer has inked a 10-year revenue floor agreement with Engelhart – marking the first deal of its kind in its home country.
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PowerChina breaks ground on world’s largest power generation-side battery storage project
On June 26, the construction of the world’s largest power generation-side energy storage project in Ulan Chab, Inner Mongolia, officially began. This 1 GW/6 GWh project, using lithium iron phosphate (LFP) technology, aims to enhance grid stability and support China’s renewable energy transition.
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