Greek renewables developer Metlen Energy & Metals has signed an agreement with utility Copec for the sale of the Tamarico II solar-plus-storage project in Chile’s Atacama region.

Utility and power firms Axpo and energieUri have commissioned two large-scale battery energy storage system (BESS) projects in Gurtnellen, Canton Uri.

Our collection of user-posted analysis, views, and unofficial news, gathered from our networks on LinkedIn, returns for its third outing.

Update 14 September 2026: Vattenfall representatives offered more details and responded to Energy-Storage.news enquiries.

Developer SMT Energy and Software-focused energy storage system integrator FlexGen have announced the start of operations of a 160MW/320MWh energy storage facility Houston, Texas, US.

We hear from Angus Gordon Lennox, chair of the Gore Street Energy Storage Fund (GSF), which faces a shareholder vote next week on its future. 

A roundup of large-scale BESS news from in and around the Nordic region, with Sweden-based Flower building a project in Germany, Volvo launching one in Sweden and Delta Capacity securing a toll for one in Finland. 

We look at the iron-air battery technology of startup Ore Energy, including how it works and technology developments it is pursuing after a recent US$43 million fundraise.

Two pilot deployments of sodium-ion (Na-ion) battery storage technologies are currently being solicited in India.

Akaysha Energy’s Waratah Super Battery in Australia briefly reached its full rated output of 850MW on 7 September.