BESS owner-operator Return has put its 100MW/200MWh Antares BESS in the Netherlands into commercial operation, the largest to have reached that stage in the country as far as we know.
RWE has taken a final investment decision (FID) on 400MW/1.1GWh BESS in the Netherlands with construction to start in due course, while Giga Storage has started building its 2.8GWh Green Turtle project in Belgium.
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.
BESS owner-operator Return has signed a long-term toll with power firm Vattenfall for its 200MW/800MWh Sirius BESS project in the Netherlands, concurrent with financial close.Â
Elestor claims its hydrogen-iron flow battery delivers 75%+ round-trip efficiency, a 20-25 year lifespan, and 15€/kWh capex for long-duration storage. 
Owner-operator Giga Storage has secured a €450 million (US$512 million) financing package for its 700MW/2,800MWh Green Turtle BESS project in Belgium.