Status: Under Construction / Phased Buildout | Location: Grange Castle Business Park, Clondalkin, Dublin, Ireland
The Microsoft DUB14 Data Center Campus in Grange Castle, Dublin, is the latest, massive addition to the city's status as a hyperscale capital of Europe. As one of the single largest approved data center developments in Ireland, this project underscores Microsoft's unwavering, multi-billion-euro commitment to serving the global demands of its Azure cloud platform from this strategically important hub. The campus is planned to deliver an eventual 240 MW of IT capacity across multiple buildings, making it one of the largest self-contained cloud campuses in the country.
The location in Grange Castle Business Park is pivotal, as it is already home to established hyperscale facilities from other major tech players, benefiting from existing high-voltage grid infrastructure. However, the project is moving forward amidst increasing scrutiny of the sector's power and water consumption in Ireland. Microsoft has addressed these concerns by committing to industry-leading sustainability and efficiency metrics. The facility is designed to utilize 100% renewable energy, achieved through Power Purchase Agreements (PPAs) that directly support the construction of new Irish wind and solar farms.
Technically, DUB14 employs advanced design principles to ensure resilience and efficiency. It is designed to operate with an ultra-low PUE (Power Usage Effectiveness), primarily achieved through air-side economization using Dublin's temperate climate for "free cooling" for much of the year, thereby minimizing energy used for refrigeration. Furthermore, the campus integrates substantial battery storage and highly resilient DRUPS systems to mitigate grid stability concerns, ensuring continuous operation of mission-critical cloud services.
By continuously expanding its capacity in Dublin, Microsoft is leveraging the city's excellent transatlantic connectivity sitting on the path of major subsea cables linking Europe and North America. The DUB14 campus is vital for hosting core Azure services for the European market and for supporting the massive computational needs of new services, including advanced AI applications. The development reinforces Dublin’s position as a gateway for global digital trade, despite the need to carefully manage its impact on national energy resources.
| Field | Value |
|---|---|
| Project Name | Microsoft DUB14 Data Center Campus |
| Location | Grange Castle Business Park, Clondalkin, Dublin, Ireland |
| Status | Under Construction / Phased Buildout |
| Commissioning | Expected Phased Go-Live from 2026 onwards |
| Total IT Load | 240 MW |
| Total Capacity | 240 MVA+ |
| Tier Level | Tier III (Minimum operational level for hyperscale infrastructure) |
| Project Type | Hyperscale, Cloud Services (Azure) |
| Header | Details |
|---|---|
| City Name | dublin |
| Population | 592,713 |
| Urban Agglomeration | 1,263,219 |
| City GDP | €248 billion |
| Per Capita Income | €29,319 |
| City Tier | Tier 1 |
| Key Strengths | Gateway to Europe/US; Proximity to Cloud Giants; Skilled Workforce; Favorable Corporate Environment. |
| Header | Details |
|---|---|
| Developer / Operator | Microsoft |
| Strategic Infrastructure Partner | Microsoft's internal development |
| Construction Contractor | Various contractors used by Microsoft |
| MEP Engineering | N/A |
| Network Connectivity | Direct, high-bandwidth connections to Microsoft's global Azure network. |
| Power Infrastructure | Secured dedicated power line to the National Grid substation; significant on-site battery storage and Diesel Rotary Uninterruptible Power Supply (DRUPS). |
| Header | Details |
|---|---|
| Power Capacity | 240 MW |
| UPS Redundancy | N+N or 2N (Standard for mission-critical Azure infrastructure) |
| Cooling System | Air-side Economisation (Free cooling); designed for low water usage; incorporating advanced controls for efficiency. |
| Connectivity | Direct fiber access to Dublin's primary peering points and subsea cable landings (e.g., AEConnect-1, Celtic Norse). |
| PUE Target | 1.1-1.2 (Industry best practice and a key focus for Irish planning) |
| Energy Mix | 100% Renewable Energy (Committed by Microsoft, sourced through PPAs for Irish wind and solar projects) |
| Header | Details |
|---|---|
| Announcement | Planning permission initially granted in late 2023 |
| Construction Start | 2024 |
| Phase 1 Go-Live | Expected 2026 |
| Full Buildout | Projected over 5-7 years |
| Header | Details |
|---|---|
| Total Investment | €900 Million - €1 Billion |
| Funding | Microsoft |
Subscribe to our exclusive newsletter and get the latest insights on data center trends, market forecasts, and infrastructure innovations delivered straight to your inbox.