In this interview with ESN Premium, Sahand Karimi of OptiGrid discusses how BESS warranties and constraint management shape trading behaviour.

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. 

Speaking to ESN Premium, Kashish Shah of Wärtsilä explains why Australia’s volatile market structure makes it uniquely suited for battery storage.

China’s listed battery storage companies have entered the peak interim reporting season, with H1 2026 likely marking the broadest profit recovery in recent years.

A total of 18GWh of large-scale BESS capacity came online in July 2026, of which China accounted for 70%. 

What are the technology improvements of the 4th generation of LFP batteries, and what do they mean for BESS applications?

ESN Premium learns about Hong Kong’s role as a bridge between China and the world, from energy storage solution provider RelyEZ and investment promotion agency InvestHK.

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. 

ESN Premium speaks with Fluence’s Jeff Monday and Sam Markham on the opportunity battery energy storage could provide data centres in Australia.

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.