Telia Helsinki Data Center ↗
Published Date unavailable · Retrieved 2026-10-07
Search-indexed operator page identifies Valimotie 3-5, 00380 Helsinki, Finland and 24 MW IT capacity; direct opening failed.
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Finland / Facility
Telia Helsinki Data Center
Unknown MWTotal facility power not establishedSee capacity evidence for reported claims.
Telia HDC
Operational
Operational colocation facility in Pitäjänmäki, Helsinki, opened on 5 June 2018. Telia reports 24 MW IT capacity. Industry reporting describes a 4 MW expansion and 28 MW installed total, which remain unreconciled with operator documentation. Numerical coordinates are unverified.
Last researched 2026-10-07Last verified Not independently verifiedPublished revision 1
No approved site photo yet. Photos and their source dates are published after evidence review.
Site profile
- Operator
- Telia Finland Oyj
- Ownership
- Unknown / not established
- Business model / scale
- Colocation / Unknown
- Region / metro
- Uusimaa / Helsinki metropolitan area
- City / locality
- Helsinki
- Address
- Valimotie 3-5, 00380 Helsinki, Finland
- Location
- Operator address corroborated by Helsinki municipal permit evidence; no verified geographic point.
Precision: unknown - Parent
- Not assigned
Capacity evidence
Statements retain their dates, definitions and development scope. Do not add these rows together.
| Claim / measurement | Scope and status | As of | Evidence and accounting |
|---|---|---|---|
| 24 MW IT load | Whole facility advertised redundant critical IT capacity Operational · cumulative | 2026-10-07 | Conflicting claim ↗ Excluded from capacity totals. As_of is retrieval date of undated operator brochure; advertised capacity is not measured current load. Conflicts with industry-reported 28 MW installed total. |
| ≥6 MW Unspecified power | Facility starting capacity before opening Planned · cumulative | 2018-05-09 | Reported claim ↗ Excluded from capacity totals. As_of is release date. Starting capacity is stated alongside planned IT capacity, but its basis is not separately explicit; not proof of current installed load. |
| 4 MW Unspecified power | Additional facility capacity announced in 2024 Under Construction · incremental | 2024-05-03 | Reported claim ↗ Excluded from capacity totals. As_of is article date; completion was anticipated for early 2025. Basis and relationship to existing advertised 24 MW require reconciliation. |
| 28 MW Unspecified power | Reported facility installed capacity after expansion Operational · cumulative | 2025-05-27 | Conflicting claim ↗ Excluded from capacity totals. As_of is article date. Industry report describes installed total; operator documents continue to advertise 24 MW IT and do not independently confirm this electrical total. |
| 100 MW Unspecified power | Operator-described total power capacity Operational · cumulative | 2024-09-26 | Reported claim ↗ Excluded from capacity totals. As_of is whitepaper publication date. Source distinguishes this from 24 MW IT but does not define contracted grid capacity, redundancy or available usable facility load. Do not convert transformer MVA into MW. |
| 100 MW IT load | Historical potential ultimate site IT capacity Planned · cumulative | 2024-05-03 | Reported claim ↗ Excluded from capacity totals. As_of is reporting date of a historical operator statement: site could eventually support up to 100 MW IT. Conditional ceiling, not committed development or installed capacity; distinct from whitepaper total-power claim. |
Development timeline
- 2016–2018 · actual_construction
Facility development
Ramboll reports project management and construction work during 2016–2018.
Supporting source ↗ - 2018-06-05 · actual_opening
Operations begin
Telia release announces the facility starts operations that day.
Supporting source ↗ - early 2023 · actual_commissioning
District heating supply begins
Helen confirms waste heat entered Helsinki’s district heating network from early 2023.
Supporting source ↗ - 2024-05-03 · announcement
4 MW expansion reported
Industry report describes additional capacity under development, scheduled for early 2025.
Supporting source ↗ - early 2025 · planned_completion
Expansion target
Completion target reported in May 2024; exact commissioning date remains unconfirmed.
Supporting source ↗ - 2025-05-26 · announcement
Heat recovery capacity increased
Telia reports heat recovery capability up to 90% with increased data-hall capacity and equipment.
Supporting source ↗
Disclosed specifications
Building and white-space area
Approximately 34,000 m² building; 15,000 m² data-center areaOperator colocation brochure; older brochure gives 34,340 m² total building area. Building area must not be treated as white space.
Source ↗Maximum rack and server capacity
5,000 racks; 200,000 serversAdvertised maxima, not installed or occupied counts.
Source ↗Electrical infrastructure
110 kV supply; two 50 MVA main transformersNameplate apparent power and redundant infrastructure do not establish contracted usable MW.
Source ↗Cooling
Closed-loop water cooling with heat reuse; WUE below 0.1 L/kWhOperator whitepaper claim; site-wide measured period for WUE is unspecified.
Source ↗AI rack cooling options
Air cooling up to 30 kW/rack; rear-door cooling up to 50 kW/rack; direct-to-chip cooling up to 100 kW/rackAvailable configurations described in September 2024; not a statement that all racks operate at these densities.
Source ↗Design efficiency
Design PUE target below 1.2Design target, distinct from observed operating PUE.
Source ↗Energy
Carbon-neutral renewable energyOperator statement; supply mix and contractual instruments not independently audited here.
Source ↗Heat recovery
Capacity to recover and reuse up to 90% of waste heatTelia May 2025 claim, previously approximately 60%; future 28,000-apartment target is not current delivery.
Source ↗Standards and certifications
Tier III and EN 50600 design; LEED Gold, CEEDA Gold; ISO 9001, ISO 27001, ISO 22301, PCI DSS and Katakri 2020 advertisedOperator brochure statements; Tier design is not evidence of independent Uptime Institute certification. Certification scope and validity were not checked against registries.
Source ↗Connectivity and services
Multiple operators; local and international backbone connections; colocation from 12 RU to dedicated halls; smart handsOperator brochure service offering.
Source ↗Public customer
UpCloud FI-HEL2UpCloud identifies Telia Helsinki Data Center as its FI-HEL2 hosting facility.
Source ↗Developer and project management
Telia development; Ramboll project management and construction oversightHistorical project relationship; does not establish legal property ownership.
Source ↗Historical property company
Kiinteistö Oy Pitäjänmäen Data Central c/o TeliaSonera Finland OyjNamed in 2017 municipal permit search extract; current ownership unestablished.
Source ↗Business contact route
https://telia.fi/datacenterPublic operator contact route advertised in brochure; no form submitted.
Source ↗Sources and references
Source attribution does not imply independent verification or permission to reuse images.
Cooling options for AI/GPU loads in Telia Helsinki Data Center ↗
Published 2024-09-26 · Retrieved 2026-10-07
Dated operator whitepaper establishes Telia HDC in Pitäjänmäki, Helsinki, Finland; reports 24 MW IT and 100 MW total power, closed-loop cooling and AI rack options.
Suomen suurin avoin datakeskus aloitti toimintansa Helsingissä ↗
Published 2018-06-05 · Retrieved 2026-10-07
Telia-issued release says operations start that day and reports 24 MW total capacity and EUR160 million investment.
Caverion vastaamaan Pohjoismaiden toiseksi suurimman avoimen palvelinkeskuksen valvonnasta ja ylläpidosta ↗
Published 2018-05-09 · Retrieved 2026-10-07
Construction-service partner identifies Telia Finland as developer/customer and reports planned IT capacity of 24 MW and starting capacity of at least 6 MW.
Telia Helsinki Data Center colocation brochure ↗
Published Date unavailable · Retrieved 2026-10-07
Operator brochure names Telia Finland Oyj, describes colocation services, 24 MW redundant critical IT power, approximately 34,000 m² building and 15,000 m² data-center area.
Welcome to Helsinki – tips for newcomers ↗
Published Date unavailable · Retrieved 2026-10-07
City describes Helsinki metropolitan area as Helsinki, Espoo, Vantaa and Kauniainen, situated within Uusimaa.
Telia HDC: Pohjoismaiden suurin datakeskus ↗
Published Date unavailable · Retrieved 2026-10-07
Project manager identifies Helsinki facility, Telia client, 2016–2018 project period and 2018 completion; confirms involvement in 110 kV supply design.
Telia to add 4MW to Helsinki data center ↗
Published 2024-05-03 · Retrieved 2026-10-07
Reports 4 MW additional capacity under development for early-2025 completion and historical potential for up to 100 MW IT load.
Telia increases capacity of district heating solution at data center in Helsinki ↗
Published 2025-05-27 · Retrieved 2026-10-07
Reports expansion bringing installed capacity to 28 MW; power basis is not explicitly distinguished and operator brochure still states 24 MW.
Helsinki Data Center lämmittää nyt jopa 14 000 kerrostalokaksiota – Hukkalämmön talteenoton kapasiteettia nostettu ↗
Published 2025-05-26 · Retrieved 2026-10-07
Telia Finland release reports increased equipment and data-hall capacity and waste-heat recovery capacity up to 90%; does not quantify electrical expansion.
Helen and Telia’s Collaboration Brings Even More Data Center Heat to Helsinki Residents ↗
Published Date unavailable · Retrieved 2026-10-07
Utility confirms phased waste-heat reuse from Telia’s Pitäjänmäki facility since early 2023 and increasing heat supply as it expands.
Telia Data Center brochure ↗
Published Date unavailable · Retrieved 2026-10-07
Operator reports 34,340 m² building, 15,000 m² white space, maximum 5,000 racks, two 50 MVA transformers, 110 kV supply and design PUE below 1.2.
UpCloud Data Center Information ↗
Published Date unavailable · Retrieved 2026-10-07
UpCloud identifies its FI-HEL2 deployment with Telia Helsinki Data Center and describes carrier-neutral access to providers and internet exchanges.
Valimotie 3-5, 46. Pitäjänmäki, Kiinteistö Oy Pitäjänmäen Data Central, lupa yksityisten rakenteiden sijoittamiseksi yleiselle alueelle ↗
Published 2017-01-03 · Retrieved 2026-10-07
Search-indexed municipal decision identifies Valimotie 3-5, Pitäjänmäki and permit recipient Kiinteistö Oy Pitäjänmäen Data Central c/o TeliaSonera Finland Oyj. Direct opening timed out; historical permit does not establish current ownership.
Profile field evidence
Name: Cooling options for AI/GPU loads in Telia Helsinki Data Center; Telia Helsinki Data Center colocation brochure
Aliases: Cooling options for AI/GPU loads in Telia Helsinki Data Center
Kind: Telia Helsinki Data Center colocation brochure; Telia HDC: Pohjoismaiden suurin datakeskus
Country: Cooling options for AI/GPU loads in Telia Helsinki Data Center; Telia HDC: Pohjoismaiden suurin datakeskus
Region: Welcome to Helsinki – tips for newcomers
City: Cooling options for AI/GPU loads in Telia Helsinki Data Center; Telia HDC: Pohjoismaiden suurin datakeskus
Metro: Welcome to Helsinki – tips for newcomers
Address: Telia Helsinki Data Center; Valimotie 3-5, 46. Pitäjänmäki, Kiinteistö Oy Pitäjänmäen Data Central, lupa yksityisten rakenteiden sijoittamiseksi yleiselle alueelle
Operator: Telia Helsinki Data Center colocation brochure; Helsinki Data Center lämmittää nyt jopa 14 000 kerrostalokaksiota – Hukkalämmön talteenoton kapasiteettia nostettu
Business Model: Telia Helsinki Data Center colocation brochure
Statuses: Suomen suurin avoin datakeskus aloitti toimintansa Helsingissä; Helsinki Data Center lämmittää nyt jopa 14 000 kerrostalokaksiota – Hukkalämmön talteenoton kapasiteettia nostettu; Helen and Telia’s Collaboration Brings Even More Data Center Heat to Helsinki Residents
Summary: Cooling options for AI/GPU loads in Telia Helsinki Data Center; Suomen suurin avoin datakeskus aloitti toimintansa Helsingissä; Telia Helsinki Data Center colocation brochure; Telia to add 4MW to Helsinki data center; Telia increases capacity of district heating solution at data center in Helsinki
Location: Telia Helsinki Data Center; Valimotie 3-5, 46. Pitäjänmäki, Kiinteistö Oy Pitäjänmäen Data Central, lupa yksityisten rakenteiden sijoittamiseksi yleiselle alueelle
Stable identifier: 3ea5a356-27f0-47e1-b16b-86f35f76f6fb