Stack Mill1b
Lombardia, Italy
Source: OpenStreetMap
Stack Mill1b is a mapped data center in Lombardia, Italy, operated by Stack Infrastructure, Inc.. DataCentersExposed has documented a 137,728 sq ft footprint at this site. It runs on Italy's grid, which was 51% fossil-fuelled at 285 gCO₂e/kWh in 2025 (Ember).
Reporting by Eric Keller · Updated Jun 14, 2026
Overview
source: linkSTACK MILL1B is a mapped data center in Italy, filed by Stack Infrastructure, Inc. as a STACK data center. Its reported footprint is 137,728 square feet. Ownership above Stack Infrastructure is not disclosed in available records.
Operator chain
- Ultimate parentStack Infrastructure, Inc.
- Files asStack Infrastructure, Inc.
- This facilityStack Mill1b
The grid behind this site
source: Ember · EurostatA large data center in Italy pays 18.69¢/kWh for electricity — a household pays 31.11¢, 40% more than the data center (Eurostat).
National grid context, not this facility's own metering. Full country picture: Italy data centers.
In the news
source: Google News (local + English)- I data center avanzano sul territorio. La Martesana chiede trasparenzaIl Giorno· Oct 13, 2026
- Data Center siglato l’accordo Un milione e mezzo di euro da dividere fra Vignate e 6 ComuniZazoom Social News· Oct 10, 2026
- Core Stack e Green Arrow, 1 miliardo per rete di 13 data center in ItaliaANSA· Oct 7, 2026
- BlackRock e IFM trattano per i data center di Stack in AsiaAgenparl· Sep 30, 2026
- Il data center sull’area ex Elcograf di Melzo l’iter avanza e l’opposizione insorge | Abbiamo dei dubbi sull’impatto ambientaleZazoom Social News· Sep 27, 2026
- Consorzio sostenuto da BlackRock in trattative per i data center APAC di StackInvesting.com - Quotazioni, Borsa, Economia e Finanza· Sep 24, 2026