The overall project consists of the construction of a high-voltage direct current (HVDC) underground cable connection, with a nominal power of 2×500 MW, between the electrical stations of Piossasco and Grand Ile, on the Italian side and the French side.

The identified electrical scheme consists of two conversion modules, each with a nominal power of 500 MW, connected through two pole lines at 250-350 kV DC, entirely constructed as underground cables.

The new Piossasco Conversion Station will consist of two alternating/direct current conversion modules, each with a capacity of 600 MW, connected on the direct current side to the two pole cable lines at 320 kV DC and on the alternating current side to the 380 kV section of the Piossasco Electrical Station. The two modules will be operated at a nominal power of 2×600 MW in a bipolar configuration.

The general architectural features of the station buildings are inspired by the architectural design of the existing RTN electrical station, with the choice of roofs and facades’ cladding in line with what has recently been implemented in the structures to the north of the station in the project.

Mixed prefabricated panels are planned with simulated openings alternating with solid bands, of different thickness and color, with a finish composed of marble, granite, and natural aggregate granules. The higher panel bands are in Verona red, while the lower bands are in light gray, and the different thicknesses of the panels create a slight shadow effect at the joints, further mitigating the perception of the substantial volume of the structure.