The Flumini Mannu Solar Thermal Plant – Molten Salt Thermal Energy Storage System is a 55,000kW energy storage project located in Villasor-Decimopuutzu, Cagliari, Sardinia, Italy.

The thermal energy storage project uses molten salt as its storage technology. The project was announced in 2016 and will be commissioned in 2021.


The Flumini Mannu Solar Thermal Plant – Molten Salt Thermal Energy Storage System is being developed by Energogreen Renewables. The project is owned by Energogreen Renewables (100%).

The key applications of the project are renewables capacity firming and renewables energy time shift.

Contractors involved

Energogreen Renewables is the owner. Energogreen Renewables is the developer.

Chiyoda is the EPC contractor for the project.

About Energogreen Renewables

Energogreen Renewables Srl (Energogreen) is a renewable energy company that offers development and management of renewable energy power plants. The company’s services include designing, engineering and construction of solar and winds energy power plants. It also offers advisory, consulting, and engineering services to wind energy, solar energy, and hydro energy. Energogreen also offers independent monitoring and assessment of project schedules. The company caters its services to private corporations, financial operators, and public organizations. It operates in Italy, Serbia and the UK. Energogreen is headquartered in Pollenza, Italy.


All publicly-announced energy storage projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects are sourced through secondary information sources such as country specific power players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.