The members of LIEN, supported by SEAI, work together to improve their energy performance and inspire others to follow.

  • 199

    of Ireland’s largest energy users are members of LIEN
  • 140,000

    people are employed by Network members
  • 21%

    of Ireland's total primary energy requirement is accounted for by LIEN members

About LIEN

LIEN members are companies with an annual energy spend of €1 million or more. SEAI work with these companies to improve their energy performance. We hope Ireland's larger companies will lead on the transition, and inspire others to take action, by sharing their experience. Special working groups within the Network have developed best practice guides on how manage energy performance. LIEN members report anually on energy consumption and projects undertaken to help increase efficiency.

View the LIEN members list

Who can join LIEN

Companies are eligible if they are either spending at least €1 million on energy annually, or are certified to or pursuing ISO 50001 certification. Certain commitments must be fulfilled by companies signing up to LIEN. You must:

  • Develop an energy management programme and action plan
  • Set and review energy targets
  • Report annually on energy performance
Learn more

View LIEN member results and targets

The total primary energy requirement (TPER) of the network increased marginally to 36,600 GWh in 2019, representing a total estimated energy spend of €1.3 billion. View TPER breakdowns by sector and individual member results and targets.

View Members Results


These guides, developed by special working groups in the large industry energy network, document best practice and introduce techniques for reducing energy use.

Contact us

If you are interested in joining or have any queries about LIEN, please email