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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Mullingar Park Hotel
EXEED
Business & Industry

Optimising hotel energy efficiency at Mullingar Park Hotel

Mullingar Park Hotel’s successful EXEED certified energy transformation delivers energy savings of 665,905 kWh/yr and carbon reduction 138 tCO2/yr

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Team at Kilsaran being present with a plaque for EXEED Certification
EXEED
Business & Industry

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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  1. Tipperary University Hospital
    Public Sector
    Renewable Technologies

    Road to decarbonisation at Tipperary University Hospital

    Tipperary University Hospital has invested significantly in energy efficiency upgrades over the last three years.

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  2. Heat pump and Solar PV array at Ballyogan Operations Centre
    Business & Industry
    Public Sector
    Renewable Technologies
    Featured

    Dún Laoghaire-Rathdown County Council Ballyogan Operations Centre Decarbonisation Project

    This case study examines the decarbonisation project for the Ballyogan Operations Centre, part of Dún Laoghaire-Rathdown County Council corporate estate. It serves as a powerful example of what can be accomplished through collaboration and shared values, and it will undoubtedly inspire other public bodies who are looking to enhance energy performance.

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  3. David Currid, owner of Grantstown Nurseries, holding a box of tomatoes.
    Business & Industry
    Renewable Technologies
    Support Scheme for Renewable Heat

    Grantstown Nurseries install biomass boiler

    A second-generation tomato grower moves away from using fossil fuels to renewable heat to heat the glass houses.

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  4. Solar panels at St. Marys campus in Phoenix Park
    Public Sector
    Renewable Technologies

    Solar PV at St. Mary’s campus in Phoenix Park

    Green Team aims to reduce energy bills and generate renewable electricity with new Solar PV system.

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  5. Heatworks Tallaght
    Business & Industry
    Renewable Technologies

    Tallaght District Heating Scheme

    The Tallaght District Heating Scheme is the first large-scale district heating network of its kind in Ireland. The network currently supplies heat to a number of public and residential buildings in the area using waste heat from the nearby Amazon data centre.

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  6. Poolbeg
    Energy Research
    Renewable Technologies

    How integrating heat, electricity and transport sectors can help Ireland reach net zero

    Can we find more effective ways to store and integrate excess
    renewable energy? That was the task at hand for this project,
    using Dublin's Poolbeg area as a case study.

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  7. Scoil-Mhuire-Abbeyleix_1200px
    Renewable Technologies

    Scoil Mhuire, Abbeyleix, achieves a B2 in deep retrofit

    Scoil Mhuire, Abbeyleix, County Laois, underwent a deep retrofit through the Pathfinder programme.

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  8. SEAI-Energy-Awards-Innovative-Deployment-of-Renewable-Energy-Award-1_1200-px
    Business & Industry
    Renewable Technologies
    EXEED

    Ahascragh Distillery is first to produce carbon-neutral spirits in Ireland

    With support from SEAI, the award-winning eco-distillery is powering their new production facility and visitor centre using renewable energy.

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  9. Aurivo-2023_cropped
    Business & Industry
    Renewable Technologies
    EXEED

    Thermal Energy Efficiency Upgrade at Aurivo Dairy Ingredients

    Aurivo Dairy Ingredients, a milk processing plant with a significant thermal demand, reinvent the supply of thermal energy to the process through the EXEED scheme.

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  10. CoWind_Team-Photo
    Communities
    Energy Research
    Renewable Technologies
    Featured

    Community Engagement in Wind Energy: Innovative approaches to achieving a social license (Co-Wind)

    The 2018 SEAI National Energy Research Development & Demonstration (RD&D) Programme supported the UCC led Co-Wind project, which aims to better understand and improve community engagement with local wind farms in Ireland

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  11. DJI_0726
    Business & Industry
    Renewable Technologies
    Featured

    Wyeth Nutrition Ireland achieves EXEED Certification

    The Limerick manufacturing site Wyeth Nutrition incorporated energy efficiency design with support from SEAI.

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  12. MSD-Carlow_1
    Business & Industry
    Renewable Technologies
    Featured

    MSD Carlow makes Energy Efficient Design a priority

    Pharmaceutical company MSD Carlow followed a key building method for ensuring energy efficiency & sustainability in the construction of their new lab.

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  13. Temmler
    Business & Industry
    Climate Action
    Renewable Technologies

    Temmler switches from Oil to Biomass

    Switching to a Biomass Boiler helped Temmler to hit its
    decarbonisation goals.

    Find out more
  14. 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.

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  15. 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).

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  16. 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
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