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Overview

EirGrid is the state owned independent Transmission System Operator (TSO) and Market Operator (MO) in Ireland. It is EirGrid's role to deliver quality connection, transmission, and market services to electricity generators, suppliers and customers utilising the high voltage electricity system.

In this capacity, it is proposing a new 110kV electricity circuit to connect the existing Clashavoon substation, which is located north-east of Macroom, and the existing Dunmanway electricity substation, which is located on the outskirts of Dunmanway.

The proposed development is required to remedy two identified transmission network problems in South West Cork.

Justification

Increase Security of Electricity Supply

Currently the electricity supply in South West Cork is maintained by two 110 kV transmission lines, the Dunmanway-Macroom 110 kV line and the Bandon-Raffeen 110 kV line. During routine maintenance of either line, the subsequent loss of the other line would mean that South West Cork would lose its electricity supply and leave the towns of Bandon, Ballylickey, Dunmanway and extended areas around them, without power.

Facilitate Connection of Renewable Generation

There is a significant amount of renewable generation connected or seeking to connect in South West Cork. The current transmission network configuration and capacity is not capable of accommodating the connection of this amount of renewable generation.

It is vital that new electricity infrastructure is built to ensure that the region meets the standards required of a safe and secure electricity system.