Pure DC Seinäjoki: 550MW Hyperscale Finland AI Campus
Status: Under Construction | Location: Ämmäläntie & Törnäväntie, Pihlajaniemi, 60200 Seinäjoki, Finland
Project Overview
Pure Data Centres’ Seinäjoki AI Campus (SJK01) is a flagship €7.5+ billion ($8.58+ billion USD) hyperscale artificial intelligence digital infrastructure development located on a 370-acre site in Seinäjoki, western Finland. Designed as a next-generation AI and high-performance computing (HPC) hub, the campus is purpose-built to support the rapidly growing demand for advanced computing capacity, large-scale AI model training, and GPU-intensive workloads. The facility architecture is based on repeatable 40 MW modular data halls equipped with advanced Direct Liquid Cooling (DLC) manifolds, enabling efficient thermal management for ultra-high-density GPU server environments. The campus is backed by more than 700 MVA of 100% renewable grid power, supported by an on-site primary electrical substation that has already been completed and is operational for the first phase of development. Designed to attract major hyperscale cloud operators and technology companies, the campus includes global cloud providers such as Microsoft as anchor customers. Sustainability is a core element of the project, with waste heat generated from high-performance computing operations captured and reused through Seinäjoki’s municipal district heating network. This circular energy approach helps provide heating for local communities while improving overall energy efficiency. With its combination of renewable power, AI-focused infrastructure, advanced cooling technologies, and sustainable operations, the Seinäjoki AI Campus represents Finland’s emergence as a major destination for future AI computing infrastructure.
Quick Facts
| Field | Value |
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| Project Name | Pure DC Seinäjoki: 550MW Hyperscale Finland AI Campus |
| Location | Ämmäläntie & Törnäväntie, Pihlajaniemi, 60200 Seinäjoki, Finland |
| Status | Under Construction |
| Commissioning | 2027 (Phase 1 Target; initial substation operational) |
| Total IT Load | 550.0 MW critical IT capacity across a 370-acre (150 ha) site utilizing repeatable 40 MW modules (Phase 1: 110 MW IT load) |
| Total Capacity | Tier III+ Concurrently Maintainable / BREEAM & ISO Standards Target |
| Tier Level | Greenfield Hyperscale, Cloud & High-Density "AI-Ready" Computing Campus |
| Project Type | Greenfield Hyperscale, Cloud & High-Density "AI-Ready" Computing Campus |
City Profile
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| City Name | Seinäjoki |
| Population | 65,000 |
| Urban Agglomeration | ~80,000 |
| City GDP | Not reported separately; part of the South Ostrobothnia regional economy (estimated regional GDP ~€5–6 billion) |
| Per Capita Income | ~€35,000–40,000 (estimated) |
| City Tier | Tier 3 – Regional Growth & Business Hub |
| Key Strengths | Strong food and agriculture industry; growing technology sector; business-friendly environment; logistics hub in Western Finland; railway connectivity; renewable energy potential; industrial parks; skilled workforce; proximity to major Finnish cities such as Tampere and Vaasa. |
Companies Involved
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| Developer / Operator | Pure Data Centres |
| Strategic Infrastructure Partner | City of Seinäjoki & Seinäjoki Regional District Heating Authority |
| Construction Contractor | Leading European Mission-Critical EPC Contracting Partners |
| MEP Engineering | Pure DC Global Technical Engineering Division |
| Network Connectivity | Carrier-neutral design featuring multiple subterranean fiber entry vaults, dual Meet-Me-Rooms, and low-latency interconnects to major Nordic dark fiber routes. |
| Power Infrastructure | Powered by high-voltage grid connections delivering over 700 MVA of renewable electricity via an operational on-site substation, backed by N+1/2N UPS modules and emergency backup power generators. |
Technical Specifications
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| Power Capacity | 550.0 MW total critical IT capacity (110 MW Phase 1 capacity fully leased) |
| UPS Redundancy | Concurrently maintainable N+1 / 2N static UPS power architecture backed by emergency standby generator arrays. |
| Cooling System | Direct Liquid Cooling (DLC) and closed-loop liquid-to-chip manifolds integrated with municipal waste heat recovery loops. |
| Connectivity | Carrier-neutral facility with redundant points of entry (POEs), dark fiber interconnects, and direct cloud exchange routes. |
| PUE Target | < 1.15 |
| Energy Mix | 100% renewable electricity (hydro, wind, solar) with district heating waste heat export integration. |
Milestones
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| Announcement | July 2026 |
| Construction Start | 2026 (Substation operational) |
| Phase 1 Go-Live | Target 2027 (110 MW Phase 1 delivery) |
| Full Buildout | Multi-phase 10-year development master plan (550+ MW total capacity) |
Investment Details
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| Total Investment | €7,500,000,000+ EUR (~$8.58 Billion USD) total campus investment (€1.5 Billion / $1.71 Billion USD Phase 1) |
| Funding | Direct equity capital & international growth infrastructure debt financing managed by Pure Data Centres Group |