Case Studies

Whether you're planning an energy efficiency upgrade or researching the benefits of energy efficiency, our case studies can show you how energy efficiency projects have been completed.

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Featured

Team at Kilsaran being present with a plaque for EXEED Certification
EXEED

Design-led energy performance optimisation at Kilsaran Asphalt Plant, Tullamore

Through SEAI’s EXEED programme, Kilsaran achieved verified energy and carbon savings at its Tullamore Asphalt production facility.

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Man standing outside of his house
Home Energy Upgrades

Kildare homeowner cuts his energy bills by almost 50%

Thomas chose the SEAI One Stop Shop grant to help bring his home from a BER C to BER A1.

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Three men walking with Markree Castle Hotel in the background.
Business & Industry
Support Scheme for Renewable Heat

A 17th century castle brings its energy efficiency into the 21st century

Renewable heat at the heart of a heritage estate. A 350kW biomass boiler now supplies 80% of Markree Castle’s thermal energy, transforming comfort and cutting costs.

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Roadstone truck at Belgard plant
Business & Industry
Featured
Large Industry Energy Network
EXEED

Roadstone blacktop optimisation: designing for energy efficiency and carbon reduction with EXEED

Through SEAI’s EXEED Certified Energy Efficient Design approach, Roadstone optimised its blacktop production process, reducing energy use and emissions while boosting operational performance across its asphalt plants.

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Erris SEC
Communities

From master plan to implementation: co-creating community-led energy solutions for Erris

Postgrad students from Germany worked with Erris SEC to explore renewable energy options within the community.

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Picture of home featured in case study
Energy Research

Testing flexibility of renewable energy systems based on price

The aim of this project is to control the power flowing into and out of a home through a single, remotely operated smart platform.

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Solar panels on a farm building in Dingle, Co. Kerry
Communities

West Kerry Dairy Farmers SEC – Ireland’s first sectoral Sustainable Energy Community

A farmer-led Sustainable Energy Community on the Dingle Peninsula is cutting energy costs, installing solar power, building community cohesion and reshaping how dairy farming engages with climate action.

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Heat pumps installed at BOI buildings
Business & Industry
Large Industry Energy Network

Bank of Ireland's decarbonisation journey

Bank of Ireland IT centre reduces its reliance on fossil fuels contributing to BOI’s 49.3% SBTi Carbon reduction target.

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SE Systems wins SEAI Residential Energy Upgrades Award
Home Energy Upgrades

SE Systems won the SEAI ‘Residential Upgrades’ Energy award

SE Systems, Winner at the 2025 SEAI Energy Awards, transformed the comfort for residents living at Douglas Lions Club, Co. Cork.

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Wexford Town SEC
Communities

Wexford Town SEC: Driving a Just Transition Through Community Action

A passionate volunteer group in Wexford Town is tackling building fabric issues while reducing fossil fuel use in the community.

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  1. Maynooth-Library
    Public Sector

    Pathfinder - Maynooth University John Paul II Library

    Maynooth University has identified a rolling programme of critical upgrade works in the original Library building to replace end of life plant before catastrophic plant failure results in building closure

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  2. UCC-ORahilly
    Public Sector

    Pathfinder - UCC O'Rahilly Building

    The objective of the project is to demonstrate that heat pumps can be retrofitted into existing buildings to generate a significant proportion of the buildings heating load.

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  3. Department-of-Defence-Renmore
    Public Sector

    Pathfinder - Department of Defence, Renmore, Galway

    This lighting upgrade project demonstrates the significant electricity and carbon savings that can be achieved by installing energy efficient light fittings.

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