Zinc hybrid cathode battery and storage system maker Eos Energy Enterprises has reported its highest quarterly revenue to date alongside a narrowing gross margin loss.

Update 2 October 2026: The financial impact of the write-down to Wärtsilä’s full-year 2026 is expected to be significantly less than initially communicated.

A City of London investment bank has said it agrees that Swiss energy storage maker and integrator Leclanché will reach profitability, but expects it to take a year longer than the company itself has predicted.