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CARTIS

MERLIN Edged Zaragoza-WIND

Zaragoza, AR, SpainProposed
Evidence
Planned critical IT
144 MW
Updated
Oct 29, 2026

MERLIN’s Zaragoza-WIND proposal describes one 144 MW IT building on 28.8 hectares under its July 2026 scope, replacing an earlier two-building, 150 MW plan. Regional-interest designation does not establish full construction authorisation. Liquid-cooled AI workloads, no water consumption for IT cooling and 87% wind-and-solar self-supply are prospective design commitments, with a battery option under study. The EUR1.225 billion investment estimate is not a financing close, and service in the second half of 2029 remains a target. The project is proposed, not an operating data centre.

Capacity

Target IT capacity MW

Planned / design or future potential

144 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

Revised single-building planPlanned

1 building

July 2026 revised 144 MW IT single-building proposal, superseding the prior 150 MW two-building concept. Evidence: SRC-N215-MERLIN-ZARAGOZA-Z1; SRC-N215-MERLIN-BILBAO-M2

Milestones (3)
Earlier plan described 150 MW in two buildings; superseded in July.

Mar 10, 2026 · Recorded actual event

Completed · Announced

Sources (1)
Regional-interest declaration approved; 144 MW single-building scope announced.

Jul 22, 2026 · Recorded actual event

Completed · Announced

Sources (1)
Target full ready-for-service date.

2029 · Forecast / planned record

Forecast · Announced

Sources (1)

Participants

MERLIN Properties

Developer

Sources by role
Developer (1)

Site & development

Site location

Reported rounded

28.8 Ha site in Botorrita associated with Vientos (Muel) and María (María de Huerva) substations. One revised building, not two campus records.

Source

Land and site control context

Reported rounded

28.8 Ha; planned main building 156301 sqm.

Source

Reviewed zar planning land context

Source report

The July 22, 2026 agreement, published August 14, declares regional and general interest, designates Merlin Properties Socimi, SA as definitive promoter of the plan and execution projects, and approves the Annex I boundary. It declares public utility and the need for urgent occupation of the affected rights, recognizes MERLIN as expropriation beneficiary, and opens 20 working days of consultation on Annex II. This is not definitive PIGA approval, completed expropriation or proof of title.

Source

Technical specifications

Reviewed zar grid context

Source report

Order ECE/1195/2026, published August 14, reports 227.4 MW of electrical demand permissions: 81 MW associated with María 220 kV and 146.4 MW with Los Vientos 220 kV. These are reported permission quantities, not 144 MW IT capacity or energized service. The underlying permission instruments and current holder/transfer chain were not independently inspected.

Source

Reviewed zar cooling context

Source report

The order reports MERLIN’s design claim of PUE 1.15 and closed loop cooling without cooling water consumption. Neither is a measured operating result, and the cooling claim must not be extended to zero total site water use.

Source

Additional project facts

Reviewed zar timing context

Source report

The planning memorandum described in the August 14, 2026 order estimates two years of execution after definitive PIGA approval and targets operation in Q3 2029. This is a conditional forecast, not an achieved milestone.

Source

Infrastructure & permits

Technical details (2)
Electric grid

Reported context

Wind/solar self-supply target 87%; battery option remains under study. Not 87% achieved today.

Cooling system

Reported context

Designed for liquid-cooled AI loads and no water consumption for IT cooling; design claim.

Other · Documented

MERLIN Edged Zaragoza-WIND

Sources (1)

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