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DataCentersExposed
Mapped (unverified)

Stack Mill1a

Lombardia, Italy

Source: OpenStreetMap

Stack Mill1a is a mapped data center in Lombardia, Italy, operated by Stack Infrastructure, Inc.. DataCentersExposed has documented a 140,116 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 · Updated Jun 14, 2026

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Real parent
Stack Infrastructure, Inc.
Operator
Stack Infrastructure, Inc.
Est. capacity
~25-60 MW
Footprint
140,116 sq ft
Grid carbon
285 gCO₂/kWh
Clean electricity
49%
DC power price
18.69¢/kWh
Region
Lombardia
Attribution & capacity confidence:mediumprimary source
Status · click to filter

Most sites are mapped — located but awaiting a second source. How we verify

Dot size = disclosed capacity (MW). Smallest = undisclosed, not small.

Overview

source: link

STACK MILL1A is a mapped data center in Italy, filed by Stack Infrastructure, Inc. Records describe it as a STACK data center with a reported footprint of 140,116 square feet. Available records do not disclose an ultimate parent above Stack Infrastructure.

Operator chain

The grid behind this site

source: Ember · Eurostat
Grid carbon intensity
285 gCO₂/kWh
Clean electricity
49%
Fossil electricity
51%
Data-center power price
18.69¢/kWh

A 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)

Methodology & sources

Every row carries a confidence level (high / medium / low) and a source URL. Spot an error? Tell us.