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Transmission System Information

Transmission System Information

Transmission Network Diagram

A copy of the current All-Island Transmissions System Map can be downloaded from the link below. The map depicts the Transmission System in the Republic of Ireland, as operated by EirGrid and that in Northern Ireland, as operated by the System Operator Northern Ireland (SONI).

   All-Island Transmission Map (January 2011)


Please note that this map represents the Transmission System and as such includes details of cables, lines and stations at the following voltages, 110kV, 220kV, 275kV and 400kV.  For details relating to the lower voltages, 38kV, 20kV, or 10kV Distribution System please refer to the ESB Networks website.

This map is for illustrative purposes only and if more detailed maps are needed for operational, planning or other purposes, they should be sought from EirGrid.

The map is copyright © EirGrid 2011 and may not be reproduced without prior written permission from EirGrid.