Spanish utility Iberdrola has acquired the 270MW/1,080MWh Tungkillo battery energy storage system (BESS) in South Australia from RES Group.

Energy storage developers are securing significant capital and strategic partnerships, with ESS Inc launching a 50MWh iron flow battery pilot, Energy Vault closing a US$300 million investment, and NineDot obtaining US$175 million in debt financing.

The value of developers and optimisers in the BESS lifecycle, thinking about long-term risk and KPIs for maximising the asset have been key themes at the Battery Asset Management Summit UK & Ireland 2025.

The US administration has a clear distaste for climate issues, but economics and data centres can still drive a clean energy transition.

A flurry of grid-scale BESS project progress totalling more than a combined 1.5GWh in the past week, from Renalfa in Bulgaria, Engie in Romania, Nala Renewables in Finland and Metlen in Greece.

Takeaways from the first day of Energy Storage Summit Latin America 2025, including the Chilean and Argentinian markets.

IPP Eolian has closed a US$463 million financing package to support the continued construction of Padua 2 and Padua 3, two battery energy storage systems (BESS) totalling 350MW/1.7GWh in Bexar County, Texas.

We catch up with the CFO and co-founder of German BESS own-operate platform Terra One, after its €150 million (US$173 million) mezzanine financing to scale up in Europe’s hottest energy storage market.

Spanish IPP Grenergy has begun construction on a 340MW solar project with 960MWh of energy storage in El Cabrero, located in Chile’s Biobío region. 

Residential energy storage startup Base Power has raised US$1 billion in Series C financing from venture capital fund Addition.