Engineering giant Siemens will develop a reference architecture purpose-built for Nvidia AI data centres, in collaboration with Fluence and incorporating nVent-aligned design considerations.

Queensland’s growing battery energy storage system (BESS) fleet set new instantaneous records for both the renewables-plus-storage (RES) share of consumption and the battery storage share of consumption on 31 May 2026.

Mexico’s Ministry of Energy (SENER) has launched a new call for renewable power projects including generating and energy storage assets.

In this Energy-Storage.news roundup, a collection of battery energy storage system (BESS)-related announcements from NeoVolta, Goshe Energy Storage, Frontier Power USA and Stella Energy Solutions, and Prevalon Energy.

The German network regulator’s decision to maintain grid fee exemptions for battery storage “ensures that billions in private investment remain directed” into the market, Energy-Storage.news has heard.

Energy-Storage.news Premium speaks with Brattle Group’s Andrew Levitt and Dr Long Lam, about PJM and managing load growth.

The Electric Reliability Council of Texas (ERCOT) has initiated a programme to encourage battery energy storage systems (BESS) and other inverter-based resources to adopt grid-forming technology.

IPP ContourGlobal has put a solar-plus-storage project in Chile with a 6.5-hour BESS into commercial operation in Chile.

TagEnergy has commissioned a 240MW/480MWh project in France while Iberdrola has done the same with a 58MW/120MWh system in Spain, the two largest projects in each country. Meanwhile Engie, ACL Energy and Chint Solar Europe have moved to construction on projects in Belgium, Italy and Germany.

The US can currently produce enough solar and battery energy storage system (BESS) modules to meet domestic demand, according to clean energy trade body American Clean Power (ACP).