Econergy has placed a 70 MW/141 MWh battery into commercial operation alongside its Parau 1 solar plant in Romania. The project is designed as a merchant solar-storage combination. The battery is located together with the existing generation assets at the site.
Battery output paired with Parau 1 solar capacity
The storage unit operates alongside an existing 92 MW solar plant in Brasov county. With both assets at the same location, the combined installed capacity reaches 162 MW. This configuration links the battery’s operation to the operational solar project.
Unlike battery systems limited to charging directly from their associated renewable plant, the Parau setup can also charge from the electricity network. That capability allows the operator to participate in wholesale market conditions beyond onsite solar generation.
Charging flexibility and merchant market participation
The ability to charge from the grid enables Econergy to buy electricity during low or negative-price periods. The company can then sell electricity when wholesale prices rise. This structure places the battery into merchant arbitrage opportunities tied to price movements.
Total investment in the combined Parau 1 solar and battery project reached around €85 million. The commercial operation of the storage unit is part of this integrated development.
Romania storage pipeline and wider European development
Econergy is planning additional storage additions across Romania, with a domestic pipeline totaling 521 MW and more than 1 GWh. Proposed capacity includes projects at Ratesti, Oradea, and Ovidiu. These planned sites expand the company’s storage footprint beyond Parau 1.
The developer also has around 13 GW of projects under development across eight European markets. Storage represents roughly half of the overall pipeline. For Romania, the Parau 1 battery addition reflects an approach to using existing grid connections more efficiently by pairing storage with operational solar generation.
