Electricitypublished as isOutside the levels infrastructureInfrastructure, outside the levelsInfrastructure18 entriesFigures published by others, reproduced as they are; they cut across the territories without adding to them.Database structure 
6Territories
5Organisations
4Occupations and activities
3Uses
2Machine operations
1Calculation factorsData centres, Ireland
The electricity of data centres in Ireland, measured at the meter by the Irish statistics office.
- Selected reference: In 2025, source CSO.
- This total covers all uses of data centres; it does not measure AI's share alone.
- Out of scope: corporate server rooms, sites that the office does not identify as data centres and hardware manufacturing.
Sentence to citeData centres, Ireland: 7.66 TWh of electricity, figure published by the CSO.
Origin of the value
23% of all the country's electricity in 2025, more than urban housing. It rose by 10% in one year, while the rest of consumption grew by only 2%.
Comparison with other infrastructure entries
Characteristics
| Unit | 1 year : in 2025 |
|---|---|
| Location | not applicable: a published total does not depend on the location of the servers |
| Counted | electricity measured at the meter of data centres, cooling included |
| Not counted | corporate server rooms, sites that the office does not identify as data centres and hardware manufacturing |
| Status | measured, 1 reading with the same scope, 1 other published value |
All the characteristics
| Identifier | IA-0116, projetcelsius.com/en/ai/database/IA-0116/ |
|---|---|
| Version | 0.1 of 2 November 2026 |
| Category | Infrastructure, published as is |
| Year | 2024 (6.97 TWh), 2025 (7.66 TWh) |
| Choice of the selected value | value taken as it stands from its source, without calculation |
| Sources | CSO, 2026 |
| Compared with | Chip manufacturing (984 GWh), Meta (18.4 TWh), Microsoft (37 TWh), Google (43.6 TWh), Digital sector in France (reference) (51.5 TWh) |
| Licence | CC BY 4.0 |
Result for the chosen case
Sources of the calculation
1 publication, for this entry and those used to calculate it, with the chosen parameters.
Energy and factors
The references of the selected values and of the entries used in this calculation.
Role and limits : CSO
Author. Central Statistics Office (Ireland)
What the publication covers. electricity measured at the meter of sites identified as data centres
What it does not cover. internal corporate server rooms
Reading by the database. An official meter-based measurement, published every year
Reference of the variant "In 2025"
Scope of the figure used. Ireland, 2025, electricity measured at the meter of data centres; 23% of the country's measured electricity
Limit. A meter-based measurement, on the sites that the office identifies as data centres
Published values
2 figures for the same quantity, each in its own scope.
| Source | Date | Electricity | What the figure measures | Scope | Status |
|---|---|---|---|---|---|
| Data centres, Irelandselected by the database, v0.1 | 2026 | 7.66 TWh | the value selected by the database | same scope | measured |
| CSO, Irish statistics office ↗Data Centres Metered Electricity Consumption 2025 | Jul. 2026 | 7.66 TWh | Ireland, 2025, electricity measured at the meter of data centres; 23% of the country's measured electricity | same scope | measured |
| CSO, Irish statistics office ↗Data Centres Metered Electricity Consumption 2025 | Jul. 2026 | 6.97 TWh | Ireland, 2024, same measurement; 22% of the country's measured electricity | other scope | measured |
The published figures do not all count the same scope; the scope of each figure is written next to it. Why do the estimates diverge?
Methodology conventions
With their alternatives
| The rule | a published total is reproduced as is, with its year and scope; it is not converted with an average factor and does not add to the database's calculations |
|---|---|
| Calculate a case without an entry | The formula, the default values and a step-by-step example |
History
Entry in version 0.1 of 2 November 2026, in the database in version 0.4
- 2 November 2026Version 0.1 of the entry, as of the date of its current value.
- 31 October 2026Creation of the database, in its first version (0.1).
