EirGrid plc is the independent electricity Transmission System Operator (TSO) in Ireland and the Market Operator in the wholesale electricity trading system.

EirGrid's role is to deliver services to generators, suppliers and customers across the high voltage electricity system, and to put in place the grid infrastructure needed to support Ireland's economy. 

EirGrid develops, maintains and operates a safe, secure, reliable, economical and efficient transmission system. It plays a key role in the operation of the Single Electricity Market, as well as developing key infrastructural projects.

For details of the legislation establishing EirGrid please see our Legal or Publications page.

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