Echelon DUB20 Arklow Data Center Campus: 100MW Hyperscale Infrastructure Hub Ireland
Status: Under Construction / Phased Grid Integration & Site Development | Location: Avoca River Park / Vale Road, Arklow, Co. Wicklow, Ireland
Project Overview
The Echelon DUB20 Arklow Data Center Campus is a flagship 100 MW hyperscale digital infrastructure development located on a 35-acre site in Arklow, County Wicklow, strategically positioned to expand Ireland’s data centre capacity beyond the traditional Dublin metropolitan region. Designed to alleviate grid constraints in central Dublin while supporting the next generation of artificial intelligence (AI), hyperscale cloud platforms, and high-performance computing (HPC) workloads, the campus delivers scalable, high-density compute infrastructure for global cloud providers, enterprise customers, and AI innovators. A defining feature of the development is its dedicated high-voltage substation integration, providing resilient and efficient power delivery while enhancing long-term grid stability. The campus is engineered with advanced cooling architectures capable of supporting high-density GPU deployments, including liquid cooling technologies that maximise thermal efficiency and operational performance for AI-driven applications. To further strengthen energy resilience, DUB20 incorporates flexible off-grid and microgrid energy solutions, enabling greater power reliability, sustainability, and business continuity during periods of grid constraint or peak demand. The carrier-neutral campus also offers diverse fibre connectivity, allowing customers to access multiple telecommunications providers and cloud ecosystems with low-latency network performance. Sustainability remains a core design principle, with energy-efficient systems, intelligent infrastructure management, and future-ready expansion capabilities that minimise environmental impact. As one of Ireland’s most significant hyperscale developments, the DUB20 Arklow Campus reinforces the country’s position as a leading European digital infrastructure hub while providing secure, scalable, and resilient capacity to support long-term AI, cloud, and enterprise digital transformation.
Quick Facts
| Field | Value |
|---|
| Project Name | Echelon DUB20 Arklow Data Center Campus: 100MW Hyperscale Infrastructure Hub Ireland |
| Location | Avoca River Park / Vale Road, Arklow, Co. Wicklow, Ireland |
| Status | Under Construction / Phased Grid Integration & Site Development |
| Commissioning | Phased Rollout (2025–2027+) |
| Total IT Load | ~75 MW – 100 MW Dedicated IT Capacity |
| Total Capacity | ~100 MW – 120 MW Total Utility Power Capacity |
| Tier Level | Tier III Equivalent / Concurrent Maintainability Standards |
| Project Type | Hyperscale Colocation, High-Density AI & Cloud Infrastructure Campus |
City Profile
| Header | Details |
|---|
| City Name | Arklow |
| Population | Approx. 14,000 |
| Urban Agglomeration | N/A (Part of Greater Dublin Influence) |
| City GDP | High Regional Employment (Industrial/Port) |
| Per Capita Income | High (Dublin Commuter/Industrial Belt) |
| City Tier | Tier 2/Satellite Data Center Hub |
| Key Strengths | Fully permitted land, secured major power connection, proximity to subsea cable landing points, renewable energy potential |
Companies Involved
| Header | Details |
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| Developer / Operator | Echelon Data Centres |
| Strategic Infrastructure Partner | EirGrid (TSO), ESB Networks, and Starwood Capital Group (Investment Partner) |
| Construction Contractor | Leading Irish & European Mission-Critical Engineering Contractors |
| MEP Engineering | Echelon Technical Services & Specialist European MEP Consultants |
| Network Connectivity | Carrier-neutral facility with dual diverse fiber entry points, direct connection to major Dublin carrier routes via M11 ducting, dark fiber links, and ultra-low latency interconnection to international subsea transatlantic landing stations. |
| Power Infrastructure | Dedicated 110kV/220kV grid substation directly connected to EirGrid's transmission network, N+1/2N static UPS configurations, and localized backup diesel/gas generator facilities with on-site bulk fuel storage. |
Technical Specifications
| Header | Details |
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| Power Capacity | ~100 MW – 120 MW Utility Connection Capacity |
| UPS Redundancy | Block Redundant / 2N Uninterruptible Power Supply (UPS) Topology |
| Cooling System | High-efficiency air-handling units (AHU) with indirect evaporative cooling, liquid-to-chip options for high-density AI clusters, and closed-loop chilled water systems. |
| Connectivity | Carrier-neutral platform offering multiple dark fiber backbones connecting directly to Dublin’s key Internet Exchanges (INEX) and transatlantic cable routes. |
| PUE Target | < 1.25 Annualized Design PUE |
| Energy Mix | 100% renewable grid power sourcing backed by Power Purchase Agreements (PPAs) with regional offshore wind and solar generators, integrated with smart grid balancing. |
Milestones
| Header | Details |
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| Announcement | Q1 2019 |
| Construction Start | Groundbreaking & Infrastructure Works (Phased Development) |
| Phase 1 Go-Live | Phased Power & Facility Delivery |
| Full Buildout | Targeted 2026–2027+ |
Investment Details
| Header | Details |
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| Total Investment | Estimated €500 Million+ (~$540 Million+ USD) |
| Funding | Equity Capital by Echelon Data Centres / Starwood Capital Group & Debt Financing via European Banking Consortium |