PPC Renewables Romania plans to install a 40.08 MW/80.16 MWh battery at its Corugea wind farm, creating a two-hour storage system designed to improve the commercial and grid performance of the existing renewable asset.
The investment is estimated at approximately €17.6 million, equivalent to about €220,000 per MWh of storage capacity. Around €2 million, or just over 11 per cent, will be provided through the EU Modernisation Fund, with PPC financing the remaining amount.
The battery will be connected to the 70 MW Corugea wind farm near Casimcea in southeastern Romania. The project consists of 35 wind turbines and produces approximately 190,000 MWh annually, implying a capacity factor close to 31 per cent. PPC estimates that the plant supplies the equivalent of more than 70,000 households and avoids over 130,000 tonnes of carbon dioxide emissions each year.
Adding storage will allow the wind farm to shift part of its output into higher-value hours, manage short-term forecast errors and reduce exposure to imbalance costs. A battery power rating equal to approximately 57 per cent of the wind farm’s installed capacity provides meaningful flexibility without attempting to store the project’s full output.
The project has been selected under Romania’s Modernisation Fund programme for battery systems connected to operational renewable plants. This support structure directs capital towards hybridisation rather than standalone storage, linking public funding to assets that can demonstrate an existing generation profile and grid connection.
PPC Renewables is seeking to expand its Romanian renewable portfolio towards 2 GW and intends to bring further storage capacity online. Corugea establishes a repeatable model in which existing wind projects can be upgraded through storage without requiring an entirely new generation development.
The investment case rests on multiple revenue sources: energy shifting, balancing participation, reduced imbalance exposure and better control over delivery during constrained periods. Its bankability will depend on how these revenues are contracted and whether the battery’s operating strategy can preserve capacity while capturing Romania’s widening hourly price spreads.
