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How market signals and subsidies are shaping energy storage development in Romania
Calendar June 11, 2026

Romania’s energy storage market is reaching an inflection point. 

Romania is rapidly emerging as one of the most attractive storage markets in Central and Eastern Europe. But as the market accelerates, distinguishing structural opportunities from short-term market signals is becoming increasingly important for any actor entering the market. 

We’re pleased to share key takeaways from Louis Rosset’s session at Solarplaza Summit Romania! 

Romania is one of Europe’s most dynamic BESS markets 

599 MW of utility-scale storage is already operational in Romania and nearly 7 GW has been announced. The state subsidies (i.e.Modernization Fund’s €300M tender) are a game changer for accelerating deployment. 

Romania’s electricity mix is progressively transitioning from fossil fuels to more renewable energy sources, especially solar and wind. 

The market stands among the most supportive European markets for BESS subsidies. Subsidies for BESS projects in Romania have already been allocated, and others are planned, financed by the EU, through tenders and Contracts for Difference (CfDs). 

Ancillary services are attractive today, but saturation is approaching 

Ancillary services drive the revenues: 

  • At the beginning of 2025: exceptionally high aFRR energy revenues with high daily spreads (1500€/MWh average in 2025). 
  • June 2025: opening of the FCR market to free participation. It has followed an increase in mFRR capacity prices (up to €60/MW/h in August 2025) due to increased demand and reduced offers. 
  • In 2026: prices remained broadly in line with late-2025 levels, before increasing again in April due to higher mFRR capacity needs. 

Batteries have been earning well above the viability threshold in Romania’s balancing market, but with 1.7 GW enough to cover the entire ancillary service need, saturation is coming fast. 

The future of BESS revenues lies in wholesale market trading 

Day-ahead and intraday markets will become the primary revenue driver as the market matures. Projects built with that in mind, and supported by subsidies, can still achieve good returns. 

Bottom line: Romania remains a highly attractive storage market, but future project success will increasingly depend on revenue stacking strategies that go beyond ancillary services. 

Would like to discuss the Romanian market, storage revenues or project opportunities? Let’s talk

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