Hydrogen-iron flow batteries: How Elestor’s tech works
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.

Hotel Villa Pamphili Roma, Rome, Italy
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.
July was a busy month for large-scale battery storage activity in the UK, with Engie commissioning a system, Masdar and Fidra hitting financial close on projects, Eku Energy buying one, project consents for Aura Power and Starlight Energy, and more.
IPP Prosalia has commissioned a 15MW/60MWh battery storage system at a solar PV plant in Portugal, while power group EDP has added one to a hybrid wind and solar project in Spain.
The European Commission (EC) has approved a financial support scheme to accelerate the deployment of battery storage technologies in Slovenia.
How do Chinese OEMs respond to evolving customer requirements and new risks that come with business outside their home market? We sat down with executives from Rept Battero at Intersolar in June to discuss.
Power firm Axpo and IPP Zelestra have entered into a long-term toll for a BESS project in northern Italy, Zelestra’s second deal in July.
ESN Premium speaks with Jason Abiecunas and Mike Wallace of FlexGen, one of a growing number of US BESS companies establishing operations in Europe.
RWE has launched construction on a 236MW/470MWh BESS in Germany, while IPP Kallista has done the same on a 193MW/386MWh system in France, supplied by Envision Energy.
European battery manufacturer and energy storage system integrator InoBat plans to get a Nasdaq listing through a business combination with a special purpose acquisition company (SPAC).
In this news roundup, Grenergy, MaxSolar and Saft, and Amarenco have made significant advancements on BESS projects in Spain, Germany, and France.