​Italy had 609 MW of operating data centre capacity at the end of 2025, with two thirds concentrated around Milan. The city is home to the country’s largest internet exchange and its main cloud regions.

Grid connections will shape the next wave of development. Terna, Italy’s transmission system operator, recorded 109 GW of data centre connection requests at the end of September 2026. That signals strong interest, although many projects may never reach construction.

For developers, securing a connection is a key step towards bringing projects online. For battery owners, the more advanced projects offer a clearer indication of where electricity demand could grow, particularly in the North.

Milan combines connectivity, cloud infrastructure and grid access

Milan hosted 414 MW of data centre capacity at the end of 2025, with three quarters connected at high voltage.

Three factors explain this concentration:

• Connectivity. MIX, Milan’s internet exchange, has 424 members and peak traffic of 3.7 terabits per second, compared with Namex’s 1.4 in Rome.
• Cloud infrastructure. Microsoft and Amazon Web Services operate their Italian cloud regions around Milan. Google has regions in Milan and Turin.
• Grid access. A dense 380 kV and 220 kV network runs west and south of Milan, through substations including Rho, Ospiate, Baggio and Lacchiarella.

Campuses follow two corridors. The western corridor covers Settimo Milanese, Cornaredo and Vittuone. The southern corridor runs through Siziano, Lacchiarella and Zibido San Giacomo.

Turin and Rome are the next hubs. Genoa connects the North to international submarine networks, with four existing cables and three planned.

​

Most tracked data centre campuses have yet to start construction

We track 54 campuses through company announcements, permits and regional filings. Forty-five disclose capacity, totalling 5.5 GW.

These figures mix IT capacity with grid capacity, which also covers cooling and other site loads. They include future phases, so they do not measure capacity already built.

We classify each campus by its most advanced phase: