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CARTIS

US Signal WI02 Madison Data Center

Fitchburg, Wisconsin, United StatesOperating
Evidence
Planned critical IT
0.6 MW
Updated
Oct 28, 2026

US Signal WI02 Madison Data Center is an operating US Signal data center facility in Fitchburg, Wisconsin. US Signal's WI02 facility at 5515 Nobel Drive; infrastructure ratings are not operating IT load. The retrofit records utility feed capacity: 9000 kVA; backup generation capacity: 4500 kW; ups capacity: 6000 kW; cooling capacity: 1510 tons. Utility service, UPS, standby generation, cooling, facility power and IT load are kept in their source-defined scopes rather than collapsed into one capacity number. Where reliable public evidence for ownership, project financing, permitting, tenants or water arrangements was not established, Cartis records the research gap explicitly instead of inferring a fact.

Capacity

Reported capacity

Actual

0.6 MW

Source

Backup generation capacity

Actual

4,500 kW

Generation capacity; not IT capacity

Source

UPS capacity

Planned / design or future potential

6,000 kW

Source

Operating IT capacity: Not established in published records

A missing figure does not mean zero. Planned, utility and generation figures are not operating IT capacity.

Development

WI02 facilityOperational

Operating data center facility.

Milestones (2)
Operator page lists facility build year as 2008.

2008 · Recorded actual event

facility build year

Completed · Commercial operation

Sources (1)
US Signal completed its OneNeck acquisition, establishing operator continuity for this facility.

Sep 3, 2024 · Recorded actual event

operator acquisition closed

Completed · Land acquired

Sources (1)

Participants

US Signal

Operator

Sources by role
Operator (1)
Operator (1)

Technical specifications

Cooling capacity

Actual

1,510 tons

Source

Additional project facts

Utility feed capacity

Actual

9,000 kVA

Source

Carrier count

Actual

9 carriers

Source

Facility tier designation

Actual

Tier 3

Source

Infrastructure & permits

Technical details (4)
Electric grid

Operational

9,000 kVA

Utility-feed/service rating; electrical capability, not IT load.

Onsite generation

Operational

4,500 kW

Standby generator capacity.

Cooling system

Operational

1,510 tons

Current facility cooling capacity.

Fiber

Operational

9 carriers

Current on-net carrier count.

Public-source research. Plans may change. See Evidence for sources and qualifications.