Castelnuovo Val di Cecina - Pisa

Castelnuovo test site is located in southern Tuscany (Italy) and belongs to the Larderello -Travale geothermal area where the industrial exploitation of the geothermal energy is ongoing since the early 1900s with hundreds of wells drilled and about capacity of 700 MW power capacity installed. The geothermal resource is superheated steam hosted mainly in the metamorphic and granitic rocks. at depths ranging from 3000 to 4000 m with temperature ranging between 300° and 350°C and pressures up to 70 bar The Castelnuovo project is a first of kind “closed loop” geothermal plant according to Italian Legislative Decree February 11, 2010 n. 22, (https://unmig.mise.gov.it/index.php/it/dati/risorse-geotermiche/ricerca…) which involves the construction of a 5 MW electric “zero emission” power station. The geothermal fluids will be extracted from deep reservoir (>3000 m) by two production wells and totally re-injected -including non-condensable gases- into the same reservoir by another well An innovative “zero emissions” power plant is designed integrating a closed binary cycle power unit and a suitable plant infrastructure with the surrounding area, respecting the principle of an environmentally integrated system.