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CyrusOne MAD1 Madrid Data Center

Alcobendas, Community of Madrid, SpainUnder construction
Evidence
Planned critical IT
18 MW
Updated
Oct 28, 2026

CyrusOne MAD1 Madrid Data Center, also known as CyrusOne MAD1, is a data center project in Alcobendas, Community of Madrid, ES associated with CyrusOne. Five-acre site; one two-story building; 6,000 square metres of technical space; 18 MW total IT load. Madrid development with renewable-energy design, air-cooled closed-loop chillers and onsite solar generation. 18 MW is the operator-published future facility or full-build design boundary.

Capacity

Reported capacity

Design

18 MW

Source

Reported capacity

Planned / design or future potential

18 MW

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

Development, permitting and phased deliveryUnder construction

18 MW is the operator-published future facility or full-build design boundary. It is not operating IT load.

Milestones (1)
Integrated environmental authorization opened to public review

Apr 27, 2026 · Recorded actual event

Completed · Permit filed

Source not linked

Participants

CyrusOne

Developer

Sources by role
Developer (1)

Site & development

Location context

Actual

CyrusOne MAD1 | Alcobendas | Community of Madrid | ES

Source

Location context

Actual

CyrusOne MAD1 | Alcobendas | Community of Madrid | ES

Source

Location context

Actual

Alcobendas, Community of Madrid, ES

Source

Development detail

Actual

Five acre site; one two story building; 6,000 square metres of technical space; 18 MW total IT load.

Source

Additional project facts

Lifecycle status

Actual

Construction

Source

Capacity basis

Actual

CyrusOne publishes 18 MW of critical IT capacity for this record boundary.

Source

Lifecycle status

Actual

Construction

Source

Capacity basis

Actual

18 MW is the operator published future facility or full build design boundary.

Source

Project boundary

Actual

CyrusOne MAD1

Source

Lifecycle status

Actual

Construction

Source

Capacity basis

Actual

18 MW is the operator published future facility or full build design boundary.

Source

Infrastructure & permits

Technical details (2)
Electric grid

Planned or represented

Madrid development with renewable-energy design, air-cooled closed-loop chillers and onsite solar generation.

Cooling system

Planned or represented

Operator describes resilient cooling; Public sources do not establish water use or delivered capacity beyond the cited project specification.

Other · Under review

CyrusOne Madrid 1

Community of Madrid

Apr 27, 2026

Sources (1)

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

Related projects (2)
Equinix MD5 Alcobendas

Operating · Alcobendas, Community of Madrid, Spain

Same locality: Alcobendas

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Prime Madrid MAD01 Data Center Campus

Preconstruction · Alcobendas, Community of Madrid, Spain

Same locality: Alcobendas

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