Large Industry Energy Network (LIEN)

LIEN members are improving their energy performance, decreasing costs and reducing carbon emissions. Supported by SEAI, these efforts are boosting their resilience and competitiveness.

About the network

The Large Industry Energy Network helps large energy users manage their energy effectively. It supports them to decarbonise their processes and buildings, while becoming more energy efficient. Members have ongoing access to an energy advisor, special working groups, training and briefing events.

LIEN membership

Why join LIEN

Free mentoring and site visits from an energy advisor
Reduce energy costs and greenhouse gas emissions
Enhance in-house skills through training
Members only events series
Special Working Groups facilitated by SEAI-appointed industry experts
Stay updated on technology and supports in energy efficiency and renewable energy

Large industry members at a glance

Many sectors are benefitting from LIEN membership but some of the most commonly represented include:

Food/drink
Includes many sub-sectors, with dairy and meat as major exports
Pharma
Includes discovery, development, sales, manufacturing and more
MedTech
Includes development, manufacture and marketing of medical devices

Eligibility to join

Companies with or in the process of pursuing certification for energy management (ISO 50001) OR who spend over €1 million on energy each year.

Email [email protected] to join.

How members perform against national energy targets

Benchmark your company’s performance. View reported energy savings by sector including pharmachem, food and drink, medtech and more.

View aggregated member results by sector

Events

LIEN members get access to talks, training, special working groups and networking events.

Decarbonisation

Events to support members in their decarbonisation journey

Decarbonisation

Events to support members in their decarbonisation journey. Sharing knowledge and tools to evaluate and reduce emissions.

Events include:

Tracking carbon emissions
Developing a decarbonisation strategy
Decarbonising direct emissions

Technology focus sessions

Led by subject matter experts to share knowledge and insights.

Technology focus sessions

Led by subject matter experts to share knowledge and insights on energy technologies.

Events include:

Electric boilers
Biomass and biogas
Thermal energy storage

Site study tours

Select LIEN members host events on site, discussing how they applied specific technologies.

Site study tours

Select LIEN members host events on site, discussing how they applied specific technologies. This is an opportunity for knowledge sharing and networking.

Events include:

Heat pump site visit
Solar farm site visit
District heating site visit

Training

Training focuses on energy management using ISO 50001, energy audits and decarbonisation indicators

Training

Training focuses on energy management using ISO 50001, energy audits and decarbonisation indicators.

Events include:

Energy auditing
ISO50001 certification
Developing energy performance indicators

Special working groups

Focuses on developing techniques to support your decarbonisation goals in a peer learning environment.

Special working groups

Focuses on developing techniques to support your decarbonisation goals in a peer learning environment.

Events include:

Energy data management
Electrification of heat
HVAC optimisation

Policy and supports

The latest in climate policy, corporate reporting and business grants/supports

Policy and supports

The latest in climate policy, corporate reporting and business grants/supports.

Events include:

Energy Efficiency Directive
SEAI business grants
Updates on relevant national legislation

Energy markets and networks

Sharing insights on grid connections, demand flexibility and corporate power purchase agreements.

Energy markets and networks

Sharing insights on grid connections, demand flexibility and corporate power purchase agreements.

Events include:

CPPAs and GPAs
Demand side response and flexibility
Grid and MIC capacity

Annual milestones

Dates to be aware of for data returns, national events and for entering SEAI’s flagship events.

Annual milestones

Dates to be aware of for data returns, national events and for entering SEAI’s flagship events.

SEAI Energy Show and Energy Awards
LIEN questionnaire return
LIEN annual review results

Best practice guides

Explore best practice and techniques for reducing your organisation’s energy use. These guides are developed by special working groups in the Large Industry Energy Network.

Case Studies

View all case studies

Large Industry Energy Network

Business & Industry

Gilead Data Collection – Steam Generation Metrics

28 October 2025

Gilead’s Carrigtwohill facility has identified the data requirements to facilitate the development of effective energy performance indicators (EnPIs).

Find out more