Filter by Region
Filter by Subject
Premium
News
October 15, 2026
Around 20.4GWh of grid-scale battery energy storage systems (BESS) came online globally last month, bringing the year-to-date (YTD) total to 208GWh.
Premium
Features, Analysis
October 15, 2026
How similar is the technology of Exa Energy, which just connected a 100MW/1GWh carbon dioxide-based energy storage system to the grid in China, to that of Energy Dome?  
Premium
Features, Analysis
October 7, 2026
Hithium’s recent sodium-ion battery and BESS product launch is the latest in a long line of announcements showing an inflection point for the battery chemistry. But how do its new products compare to other sodium-ion systems out there, and to its own LFP offering?  
Premium
Features, Analysis
September 30, 2026
Liam Critchley with an ESN Premium deep dive into availability, one of the most-discussed metrics in battery storage performance.
Premium
News
September 22, 2026
Nearly 21GWh of grid-scale BESS came online globally last month, of which around a fifth was in Saudi Arabia while the majority was in China. 
Premium
Features, Analysis
September 4, 2026
Tesla was one of the pioneers of the grid-scale battery storage market, but has faced increasing competition in the past few years. In this article we look under the hood of its latest grid-scale BESS product, the Megapack 3. 
Premium
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?
Premium
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. 
Premium
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. 
Premium
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’.