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CARTIS

Digital Realty HER1 Crete

Epsilon & Theta Street, Building Block 18, Heraklion, CR, GreeceOperating
Evidence
Planned / design
0.5 MW
Updated
Oct 28, 2026

Digital Realty opened HER1 in Crete in April 2025 with 1 MW across two modular 500 kW data halls. Digital Realty HER1 Crete is located in Epsilon & Theta Street, Building Block 18, Heraklion, CR, GR and is a data center facility in operating status.

Capacity

Data hall capacity

Planned / design or future potential

500 kW per hall

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

HER1 initial modular facilityOperational

1 building

1 MW across two 500 kW modular data halls.

HER1 future expansionPlanned

Conflicting future totals; no construction or commitment established.

Milestones (3)
Digital Realty and EXA announce HER1 connectivity partnership

Feb 3, 2025 · Recorded actual event

Completed · Event type not stated

Source not linked
Digital Realty unveils operating HER1

Apr 8, 2025 · Recorded actual event

Completed · Event type not stated

Source not linked
Vodafone point of presence and dual route reported

Jul 15, 2025 · Recorded actual event

Completed · Event type not stated

Source not linked

Participants

Digital Realty Trust

Operator

Sources by role
Operator (1)
Operator (1)

Site & development

Building area

Reported rounded

537 square meters

Source

Technical specifications

Integrated power module count

Reported rounded

2 modules

Source

Cooling redundancy

Actual

N+1

Source

Renewable energy claim

Reported rounded

100 percent

Source

Additional project facts

Facility code

Actual

HER1

Source

Opened date

Actual

2025-04-08

Source

Operating

Actual

True

Source

Facility address

Actual

Epsilon & Theta Street, Building Block 18, Heraklion 71601

Source

Data hall count

Reported rounded

2 data halls

Source

UPS redundancy

Actual

2N

Source

Tier design

Actual

Tier III modular design

Source

Carrier neutral

Actual

True

Source

Delivery duration under

Reported rounded

12 months

Source

Future expansion committed

Actual

False

Source

Exa connectivity partner

Actual

True

Source

Vodafone point of presence

Actual

True

Source

Owns connected subsea cables

Actual

False

Source

Athens platform included

Actual

False

Source

Infrastructure & permits

Technical details (2)
Fiber

Operational

EXA provides connectivity to HER1; exact live route inventory is not fully disclosed.

Fiber

Operational

Vodafone PoP and dual terrestrial route to Tympaki reported; HER1 does not own the connected cable systems.

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