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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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. 58-Taney-Road-Post-Works-Front-Elevation
    Home Energy Upgrades

    Upgrade of a 1960 semi-detached home into an A-rated home

    This upgrade saw a 1960 semi-detached home brought from a D2 to an A-rated home.

    Find out more
  2. Annahagh-Roundabout-After_thumbnail
    Renewable Technologies
    Climate Action
    Communities

    Public Lighting Upgrade for County Monaghan

    Monaghan County Council is the first local authority to retrofit all its streetlights to LEDs.

    Find out more
  3. CJ-Sheeran_SSRH_Wood-Pallets
    Business & Industry
    Renewable Technologies
    Featured
    Support Scheme for Renewable Heat

    CJ Sheeran reduces energy costs and carbon emissions

    The pallet manufacturer has set out to lower carbon emissions and energy bills through SEAI's Support Scheme for Renewable Heat (SSRH).

    Find out more
  4. Marine-Institute-staff
    Business & Industry
    Climate Action

    Marine Institute Staff Engagement Campaign

    The Marine Institutes's 'Get Greener' staff engagement campaign has reached several hundred staff with a series of mini campaigns that highlighted ways to save energy at work and at home.

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  5. One-small-change-logo
    Climate Action

    Courts Service Staff Engagement Campaign

    The Courts Service quickly recognised that the engagement of staff was key to making energy efficiency gains.

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  6. Think-Energy-CODEMA
    Business & Industry

    Codema Staff Engagement Campaign

    Codema's 'Think Energy' staff engagement programme was developed for Dublin Councils and aimed at inspiring staff in Civic Offices to become more energy conscious.

    Find out more
  7. Martin-Dempsey-poultry-farm
    Business & Industry
    Renewable Technologies

    Poultry farm switches to renewable heating

    Poultry farmer in County Mayo, avails of SEAI's Support Scheme for Renewable Heat (SSRH).

    Find out more
  8. UCC-Tyndall
    Renewable Technologies

    An education in energy efficiency

    UCC / Tyndall National Institute have invested greatly in its building's energy efficiency.
    As a result, they have won the SEAI Award for Energy in Buildings 2021.

    Find out more
  9. shutterstock_666030916
    Communities

    Scoil Chuimsitheach Chiaráin

    This post-primary school went from a C3 to a B2 Building Energy
    Rating (BER). The retrofit was part of the 2020 Schools Energy
    Retrofit Pathfinder programme.

    Find out more
  10. shutterstock_594902918
    Communities

    St. Anne's Community College

    This post-primary school went from a C3 to a B2 Building Energy
    Rating (BER). The retrofit was part of the 2020 Schools Energy
    Retrofit Pathfinder programme.

    Find out more
  11. shutterstock_290588012
    Communities

    Cornafulla National School

    This 1980's national school underwent a deep retrofit with extensive fabric upgrades. This resulted in a Building Energy Rating (BER) uplift from a C1 to a B1.

    Find out more
  12. Falls-Hotel
    Business & Industry
    Featured
    Renewable Technologies

    A hydro-powered hotel

    Sustainability is at the heart of Falls Hotel & Spa in Ennistymon, County Clare. Recently declared a carbon neutral property, they are 2021 Winners at the SEAI Energy Awards

    Find out more
  13. Inishowen-SEC
    Communities
    Climate Action

    Inishowen Sustainable Energy Community leads the way

    Inishowen Sustainable Energy Community (SEC) plans to become a renewable energy centre of excellence.

    Find out more
  14. Cormac-Madden-outside-his-house_1200-x-800px
    Home Energy Upgrades
    Featured

    Upgrade to a comfortable and warm home

    Cormac Madden has spent several years upgrading the energy efficiency of his family home.

    Find out more
  15. AN-POST-WORLDS-FIRST-ZERO-EMISSIONS-MX-2_1200-x-800-px
    Business & Industry
    Electric Vehicles

    An Post drives forward with zero emissions

    An Post's ambition is to be the greenest postal service in Europe.

    Find out more
  16. heat-pump-exterior_1200-px
    Home Energy Upgrades

    Achieve a BER A3 with home energy upgrades

    Mother of four, Aoibheann, spent 2020 upgrading her family home and is now reaping the benefits of added comfort and lower energy bills.

    Find out more
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