Microsoft DUB03 / DUB04
Dublin, Ireland
Source: OpenStreetMap
Microsoft DUB03 / DUB04 is a mapped data center in Dublin, Ireland, operated by Microsoft Data Center LLC and ultimately owned by Microsoft Corporation. DataCentersExposed has documented a 295,692 sq ft footprint at this site. It runs on Ireland's grid, which was 52% fossil-fuelled at 257 gCO₂e/kWh in 2025 (Ember).
Reporting by Eric Keller · Updated Aug 26, 2026
Overview
source: linkDUB03 at the southeast end, DUB04 at the northwest end.
Operator chain
- Ultimate parentMicrosoft Corporation
- Files asMicrosoft Data Center LLC
- This facilityMicrosoft DUB03 / DUB04
The grid behind this site
source: Ember · EurostatA large data center in Ireland pays 22.51¢/kWh for electricity — a household pays 30.46¢, 26% more than the data center (Eurostat).
Data centres used 21% of Ireland's national electricity in 2023 (CSO Ireland).
National grid context, not this facility's own metering. Full country picture: Ireland data centers.
In the news
source: Google News (local + English)- Ireland, Data Centres and the Nuclear Power DebateData Centre Magazine· Aug 25, 2026
- Data centres drive Ireland to reopen nuclear power debateFinancial Times· Aug 23, 2026
- Factbox-Authorities restricting data centres amid AI boomYahoo· Aug 18, 2026
- Kildare Microsoft data centre faces local oppositionkildare-nationalist.ie· Aug 11, 2026
- Microsoft signs $130bn in data centre leases as it races to meet AI demandThe Irish Times· Jul 30, 2026
- The Case for a Temporary Moratorium on Large Data Centers in EuropeTech Policy Press· Jul 28, 2026