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Features, Interviews
August 21, 2026
Why should people take ESS Inc and its pivot to sodium-ion BESS seriously, having failed to deliver on its iron flow battery promises since going public in 2021? We catch up with new CEO Drew Buckley about how he hopes to turn the ship around.
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Features, Analysis
August 19, 2026
The grid-scale energy storage market in Germany is in a strong position but key questions around grid fees, grid connections, FCAs and the upcoming capacity market remain, speakers at the upcoming Energy Storage Summit Germany 2026 said. 
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Features, Analysis
August 18, 2026
What are the technology improvements of the 4th generation of LFP batteries, and what do they mean for BESS applications?
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Features, Interviews
August 11, 2026
What led Field to submitting, and winning, 16- to 18-hour BESS projects in the UK’s long-duration energy storage (LDES) cap-and-floor scheme, and what are the next steps? We hear from the firm’s technical director.
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News
August 6, 2026
There is an opportunity for locally designed and manufactured BESS solutions in Europe, with the possibility of future EU controls of Chinese imports, former head of BESS products at Northvolt said. 
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Features, Analysis
August 5, 2026
Elestor claims its hydrogen-iron flow battery delivers 75%+ round-trip efficiency, a 20-25 year lifespan, and 15€/kWh capex for long-duration storage. 
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Features, Interviews
July 31, 2026
We caught up with Peter Kavanagh, CEO of BESS developer Harmony Energy, after it was acquired by Switzerland-headquartered power group Alpiq. 
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Features, Interviews
July 30, 2026
How do Chinese OEMs respond to evolving customer requirements and new risks that come with business outside their home market? We sat down with executives from Rept Battero at Intersolar in June to discuss. 
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Features, Interviews
July 29, 2026
ESN Premium speaks with Jason Abiecunas and Mike Wallace of FlexGen, one of a growing number of US BESS companies establishing operations in Europe.
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Features, Analysis
July 28, 2026
In this deep-dive, we go through and analyse all of the technical features and claims of CATL’s new sodium-ion grid-scale BESS product, including its ‘millisecond-level self-healing’.