PPC Renewables is moving a 60 MW/129 MWh battery alongside its operating 120 MW Târgușor wind farm closer to construction, reinforcing a shift in Romania from standalone renewable generation towards hybrid assets designed around storage and trading.
Romanian regulator ANRE is expected to consider the establishment authorisation for the Zephyr 1 battery project.
The investment is estimated at roughly €24.7 million, including about €2.7 million in support from the EU Modernisation Fund.
The project itself was previously announced, but progression into the establishment-authorisation stage is a more meaningful development milestone.
It requires the developer to demonstrate greater project maturity, including financing and technical readiness.
The battery would be colocated with PPC Renewables’ existing wind farm in Constanța.
That makes the project commercially interesting because Romania’s first major storage wave was dominated by solar.
Wind-storage hybridisation addresses a different market profile.
Storage spreads beyond solar
Solar batteries generally charge during predictable midday surpluses and discharge during evening peaks.
Wind output is less predictable and can occur overnight or during other periods when solar generation is absent.
Combining a battery with an operating wind farm therefore allows the developer to smooth production, manage imbalance exposure and shift electricity towards higher-value hours.
It may also reduce curtailment risk when local networks are congested.
Romania’s storage market has expanded rapidly during 2026.
Large developers are now planning systems measured in hundreds of megawatt-hours or even gigawatt-hours, while state support is increasingly prioritising flexibility rather than simply financing additional renewable generation.
The Zephyr 1 project is smaller than some recently announced batteries, but its significance lies in the asset it accompanies.
Storage is no longer being designed only into new solar developments.
It is increasingly being retrofitted or colocated with existing operating renewable plants.
That can create a substantial second-wave market.
Romania already has a large installed fleet of wind and solar assets whose grid connections and generation profiles could potentially support batteries.
For owners, adding storage can extract more value from infrastructure they already control.
For the power system, it turns variable renewable plants into more manageable market participants.
The transition is therefore moving from renewable capacity growth towards renewable optimisation.
PPC’s next step at Târgușor shows that the battery market is beginning to spread across the existing generation fleet, not just the projects still on the drawing board.
