Infrastructure

Find land near the power a data centre draws

Data centresNew

Every field in the State joined to spare capacity to draw power at medium- and high-voltage substations on ESB Networks’ heatmap. Ask for 2–10 ha within 2 km of 10 MVA, or a campus of 10 ha within 5 km of 50 MVA, and get the fields.

Grid capacity
fields of 2–10 ha within 2 km of 10 MVA, outside greater Dublin
4,527
fields of 2–10 ha within 2 km of 10 MVA, outside greater Dublin
substations with 20 MVA or more to draw
58
substations with 20 MVA or more to draw
substations on the heatmap
46,525
substations on the heatmap

Search by the power you need

Capacity to draw, not to exportNew

A data centre takes power from the grid, so the search reads each substation’s spare demand capacity.

Size and distance

From a 2 ha site to a campus: pick the spare capacity — 1, 5, 10, 20, 50 MVA — and how far the land may be from it.

Blocked headroom left out

Some substations show headroom that is constrained further up the network. Those are left out of these results and marked where they appear.

Greater Dublin set aside

EirGrid consider the greater Dublin region fully constrained for large data centres, so Dublin, Kildare, Meath, Wicklow are left out unless you ask for them.

On every field

Spare capacity to draw

The best figure within 500 m, 1 km, 2 km and 5 km of the field.

With everything else

Buildings, flood, designated sites, heritage and planning history, in the same search.

Data centres: questions

Where can a data centre connect to the grid in Ireland?

EirGrid’s May 2026 overview considers the greater Dublin region fully constrained for large data centres, and points to the 220 kV network around Galway, Limerick and Cork, much of it from the mid-2030s. For smaller schemes, Precedent finds fields near spare distribution capacity to draw.

Does Precedent show EirGrid’s transmission capacity?

No. EirGrid do not yet publish station-level demand capacity; heat maps are expected with the 2027 Ten Year Transmission Forecast Statement. Precedent uses ESB Networks’ distribution heatmap and links EirGrid’s overview beside the figures.

What does a new data centre need to connect?

Since December 2025 the CRU’s Large Energy Users Connection Policy asks a new data centre to bring its own generation or storage and to meet most of its demand with new renewables. Each application is assessed where it would connect.

Built on official public registries

ESB Networks availability capacity heatmap
46,525 substations, compiled 12 December 2025
EirGrid
Data Centre Constrained Area Overview, May 2026 — linked from the tool
Tailte Éireann
3,217,764 Land Registry titles (CC BY 4.0)
OpenStreetMap contributors
positions of medium- and high-voltage substations (ODbL)

Figures are ESB Networks’ distribution heatmap, compiled 12 December 2025 — not a connection offer, and not EirGrid’s transmission network, which the largest data centres connect to.

See it on your own patch

A short call with the founder, on real sites in the county you work in. About twenty minutes — you will know by the end whether it is any use to you.