Science & Technology in Action


EirGrid is a state-owned company responsible for operating and developing the electricity transmission grid in Ireland for the benefit of electricity consumers. It is putting in place the grid infrastructure required to support competition in the supply of electricity, to assist economic growth and to meet Government targets for the generation of renewable energy.

EirGrid holds licences as independent electricity Transmission System Operator (TSO) and Market Operator (MO) in the wholesale trading system in Ireland, and is the owner of the System Operator Northern Ireland (SONI Ltd), the licensed TSO and market operator in Northern Ireland. As TSO, EirGrid is regulated by the Commission for Energy Regulation (CER).

Grid25 is EirGrid’s national development programme. Over the course of the programme, some €3.2 billion will be invested in a broad range of electricity transmission projects throughout the country. Current projects include the East West Interconnector, Meath-Cavan and Cavan-Tyrone lines.

While conducting these projects, EirGrid engages with a wide range of stakeholders, including

  • Landowners
  • Local Communities and the General Public
  • Business Organisations
  • Statutory Bodies
  • Public Representatives

You can find out more about the work of EirGrid at