Project design combining wind and solar capacity
Romania’s Siminoc Hybrid Wind-Solar Park, being developed by Eurowind Energy Romania, combines two generation technologies within a single development. The project includes 24.8 MW of wind capacity and 24.8 MW of solar capacity, for a total installed capacity of 49.6 MW. Expected annual production is approximately 120 GWh. Construction is scheduled to begin in 2027, with commercial operation targeted for 2028.
The hybrid configuration reflects a shift in renewable project design across south-east Europe. Instead of relying on one technology, the Siminoc project brings together wind and photovoltaic generation to shape its overall output profile. The approach is positioned around market performance and risk management rather than only resource availability.
Market exposure drivers for standalone solar and wind
Hybridisation is linked to changing merchant trading conditions for standalone assets. Standalone solar projects face growing exposure to midday price compression as photovoltaic deployment accelerates across the region. Standalone wind projects, meanwhile, remain exposed to generation-profile risk.
The wind risk is described as most relevant when strong wind output coincides with weak market prices. Forecasting errors can also increase balancing costs during these periods. Within the same project, combining wind and solar is intended to create a more balanced production profile.
Grid connection sharing and contracting implications
For traders, utilities and corporate offtakers, hybrid assets are presented as having commercial value linked to forecasting and contracting. A hybrid renewable asset can deliver more stable generation forecasts and support improved power purchase agreement structures. It can also be used to support more effective hedging strategies.
A key operational element is the ability to share a single grid connection between two technologies. This becomes more valuable as connection capacity tightens throughout Romania and wider south-east Europe. In many markets, access to grid infrastructure is described as becoming almost as important as access to renewable resources themselves.
Siminoc location and regional energy developments
The Siminoc project is located in Constanța County, one of Romania’s most important renewable-energy regions. The area has strong wind resources and high solar irradiation. It is also described as being strategically close to the broader Black Sea energy corridor.
The region’s wider energy activity includes offshore gas production, grid modernisation, battery storage investments and emerging long-duration energy-storage projects. Against that backdrop, Siminoc is framed as part of a broader transformation of Romania’s energy system rather than an isolated renewable development.
Merchant-market risks remain under hybridisation
Hybridisation does not remove merchant-market risks for developers and traders. Price volatility, balancing costs, curtailment risk and transmission constraints still need to be managed. Combining wind and solar changes how those risks present across the project’s operating profile.
A diversified production profile reduces dependence on a single generation pattern. It also creates additional flexibility for integrating future storage solutions. This flexibility may become increasingly relevant as renewable penetration continues to rise.
Trading use cases beyond electricity output
From a trading perspective, hybrid projects are described as creating value beyond electricity production alone. Their output can be integrated with battery storage in market operations. They can also be structured around industrial offtake agreements.
The approach further includes guarantees of origin and optimisation through balancing and trading strategies. As Romania moves into its next phase of renewable expansion, projects designed around market behaviour, flexibility and portfolio value are highlighted as likely to gain competitive advantage.
