HYSOL project aims at redefining the concept of Solar Combined Cycle, upgrading it to a new concept: the HYSOL plant will be able to deliver dispatchable and FIRM energy during the whole year regardless of the climate conditions while it uses 100% renewable energy sources for electricity production through is innovative hybrid system.

HYSOL's special configuration allows changing the hybridization percentage of the plant to match the needs of the electrical system. The biomass-derived gas fuel production is decoupled from the plant location; it might be produced thousands of kilometers away from the plant and transported through the conventional gas network.

The flexibility of the configuration allows the HYSOL technology to cover peaks in demand and base load generation. The configuration includes two decoupled turbines: a Steam Turbine and a Gas Turbine that recovers the exhaust heat in the Thermal Storage.

FIRM Energy

HYSOL configuration overcomes the main inconvenience of RES: variable, weather-dependent operation. Through its combined generation system the plant is able to guarantee 100 % of its power delivery even after several rainy days.


The HYSOL Consortium brings together 8 partners from four different European Union member countries (Spain, Italy, Denmark and The Netherlands). It consists of a multidisciplinary team designed in order to implement major integration modes. Specifically research partners are PSA-CIEMAT, ENEA, UPM, DTU/MAN/SYS and SDLO-PRI, while the industrial partners are ACS-COBRA, AITESA and IDIE, joining expertise and competences required to reach a high level of critical mass of resources necessary to achieve HYSOL goals.

HYSOL received funding from the European Union’s Seventh Programme for research, technological development and demonstration under grant agreement No 308912.