Council · data centres and power

Data centres in Cork County

Operating campuses

4 known at any stage

—

Average grid draw, 2025

EPA-reporting sites only

—

Estimated rates a year

—

Metered water, 2025

EPA-licensed sites

Planning applications

10 granted · 0 refused · 0 appealed

Campuses

National Space Centre Elfordstown, Midleton	operating	—
Little Island, Cork (operator not identified) (1)	under construction	—
Little Island, Cork (operator not identified) (2)	permitted	—
Ovens, Cork (operator not identified)	lapsed	—

Open applications

21/4777

Proposed change of use and alterations/extension of an existing pharmaceutical facility building to a data centre. The proposed development will include demolition of an existing storage shed, provision of ancillary plant/services and boundary treatments with connection to existing mains services an

2021-05-03

Leaflet © OpenStreetMap contributors · Tailte Éireann (CC BY)

Grid headroom in Cork County

556 MVA

Demand headroom at HV stations, summed

72 transformer groups · upper bound

30 of 72

HV transformer groups with none

40 green · 2 capped by parent

365 MVA

At 38 kV

14 transformer groups

63%

Of LV substations with none

3,760 substations

Largest HV transformer groups, then MV, by demand headroom

Station	Connect at	Demand MVA	Generation MW
● Glenlara T141	38 kV	56.1	19.4
● Boggeragh	38 kV	55.6	16.8
● Charleville T141	38 kV	53.9	8.8
● Dunmanway	38 kV	43.9	8.5
● Ballylicky	38 kV	42.2	0
● Glenlara T142	38 kV	38.7	10.8
● Barnahely	38 kV	20.5	24.4
● Mallow	38 kV	18.1	16.6
● Cow Cross	MV (10/20 kV)	19.7	12.1
● Hartnetts Cross	MV (10/20 kV)	18.8	8.2
● Barnahely	MV (10/20 kV)	18.2	58
● Coolroe	MV (10/20 kV)	17.5	25.5

headroomcapped by parentnone · size = demand MVA

ESB Networks' indicative transformer headroom, not a connection offer; it ignores upstream circuits and the transmission system. Station capacity Oct 2025, contracts to Aug–Oct 2025, compiled 12/12/2025. How to read it.

Local TDs asking about data centres

Billy Kelleher · Fianna Fáil · Cork North-Central7

Pádraig O'Sullivan · Fianna Fáil · Cork North-Central4

Seán Sherlock · Labour Party · Cork East3

Holly Cairns · Social Democrats · Cork South-West2

Aindrias Moynihan · Fianna Fáil · Cork North-West1

Christopher O'Sullivan · Fianna Fáil · Cork South-West1

James O'Connor · Fianna Fáil · Cork East1

Mick Barry · People Before Profit-Solidarity · Cork North-Central1

Constituency-to-council matching is by name and approximate.