Vietnam’s government will “amend policies” to support production of clean energy technologies, a minister has said at the opening of a battery energy storage system (BESS) factory.  

Iberdrola has added its 360MWh Broadsound battery energy storage system (BESS) to AEMO’s Market Management System (MMS).

Another roundup of European BESS news, but this time around portfolios, partnerships, investments, financing, optimisation and tolling in France, Spain, Belgium, Denmark, Finland and Romania. Notable highlights are Grenergy’s 10-year BESS toll in Spain and Ingrid Capacity entering the French market.

Virginia’s recently proposed legislation to significantly increase energy storage requirements coincides with unprecedented electricity demand growth in the state, largely driven by data centres.

A staggering total of 18GW/65GWh of large-scale BESS came online in China last month, accounting for a quarter of the total capacity deployed across the globe in 2025.

Another busy week of large-scale BESS project news across Europe, led by CountourGlobal putting a 202MW/505MWh BESS into commercial operation in Bulgaria.

Technology provider Dalian Rongke Power (Rongke Power) and infrastructure developer China Three Gorges Corporation (CTG) have brought online the world’s first gigawatt-hour-scale flow battery energy storage project.

A total of around 4.9GW/14GWh of grid-scale BESS entered commercial operations around the world last month, a 29% fall year-on-year owing to an unusually slow month in China.

The quarterly financial results of US non-lithium battery storage startups ESS Inc and Eos highlight their commercialisation strategies.