Romania’s energy storage market is at a turning point – driven by rapid renewable expansion, evolving regulation, and a rapidly growing pipeline of battery storage projects.

We are pleased to share Clean Horizon’s most up-to-date view of the Romanian power and storage market, together with our S1 2026 long-term electricity price forecasts, reflecting the latest regulatory developments, project pipeline updates, and market dynamics.

Key market developments shaping the outlook

• Rapid renewable expansion – Romania is experiencing strong growth in solar and wind capacity, supported by national targets and EU funding, increasing the need for system flexibility.
• Currently high price volatility – Historical electricity prices in Romania have been particularly volatile, reflecting the country’s generation mix and regional market dynamics. This volatility has created attractive opportunities for flexible assets such as battery storage.
• A rapidly growing BESS pipeline – One of the most striking developments is the large number of battery storage projects expected to enter the market in the coming years. Supported by significant European subsidies, Romania is seeing a surge of announced BESS projects that could reshape the flexibility landscape.
• New grid access framework – Romania is moving away from a first-come, first-served grid access model toward a system based on connection auctions. This regulatory shift could significantly impact how new generation and storage projects secure grid access and structure their development strategies.

Main methodological updates in this new forecast

• Updated generation mix assumptions, incorporating the latest pipeline developments for solar, wind, and conventional capacity.
• Enhanced intraday revenue modelling, reflecting the growing impact of renewable generation on price spreads.

Enhancements to the COSMOS simulation tool

• Market volume constraints now modelled – COSMOS now reflects real market constraints by accounting for both market size and total installed battery capacity. Instead of assuming that a battery can allocate its full capacity to any market, the model now calculates the accessible share of each market based on the ratio between market demand and total prequalified battery capacity.
• Renewables participation in ancillary services markets now modelled, enabling a more realistic representation of future competition for balancing revenues.
• 15-minute optimisation on the day-ahead market – COSMOS now optimises BESS dispatch at a 15-minute resolution on the day-ahead market, allowing batteries to capture additional trading opportunities and increasing potential trading revenues.

Contact us to explore tailored insights and strategic opportunities in the Romanian energy storage market and stay ahead of the curve.