Graziella Green Power,Engie, and its subsidiaries, Storengy and Engie Italia, have signed an agreement to create a closed-loop binary cycle geothermal plant in Castelnuovo Val di Cecina in the Province of Pisa in the Italian region Tuscany, located about 70 kilometres southwest of Florence and about 70 km southeast of Pisa.
Courtesy of Engie italia
The project, due to open in 2019, involves the design, construction and operation of a geothermal power plant of 5 MWe. The plant will utilize an innovative design: the geothermal fluid withdrawn from the subsoil, after generating electricity, will be totally re-entered in the same subsoil together with non-condensable gases (CO 2 and others), with a production cycle, therefore, without air emissions.
At full production, the geothermal plant will produce an estimated 40,000 MWh (enough to supply electricity to 14,000 households).
"Our company was looking for a solid partner to carry out innovative projects in the field of geothermal energy,” explains Iacopo Magrini, CEO of Graziella Green Power, “and ENGIE had the aim of strengthening its commitment towards renewable energy. The work carried out so far by us, together with the skills and know-how of ENGIE and Storengy, will allow us to open new paths for the future of the Italian geothermal sector.”
As soon as the administrative permits have been obtained, civil works and drilling will begin. ENGIE Italia will provide project and plant management and Storengy will handle drilling and geoscience activities. Graziella Green Power will provide support in the exploration of the subsoil and in drilling activities, becoming an active partner in project and site management.
"This project is a concrete example that goes in the direction of our vision: a 3D world, decarbonized, decentralized, digitized,” said Olivier Jacquier, CEO ENGIE Italy.
"Tuscany is one of the most important geothermal poles in the world,” explained Giovanni Battista Gori, President of Graziella Green Power, “so the project is geared to enhancing this wealth with an environmentally friendly power plant, zero emissions and in harmony with the landscape, which will open new frontiers in Italy and new developments for the sector, with the ambition to continue in the future to build other plants such as Castelnuovo in Val di Cecina.”