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. dpd-Electric-fleet-selection-with-CEO-Des-Travers_1200-x-800px
    Business & Industry
    Electric Vehicles

    Dpd delivers with electric fleet

    Dpd, the courier firm, had a busier 2020 than most companies. While keeping up with delivery demand, it also continued to electrify its fleet.

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  2. danone-plant-2
    Renewable Technologies
    Business & Industry

    Danone Wexford achieves carbon neutrality

    In July 2020, Danone announced that its baby formula plant in Wexford has been certified carbon neutral by the Carbon Trust - the first baby formula plant in the world to achieve this.

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  3. Port-of-Waterford_1200-x-800px
    Climate Action
    Communities

    Port of Waterford hits 2020 energy efficiency targets

    Port of Waterford have achieved their 2020 energy efficiency targets and are working towards the dual energy efficiency and carbon reduction targets for 2030, assisted by EcoMerit and ISO 14001 certifications.

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  4. Defence-Forces_PV_1200-X-800px
    Climate Action

    The Defence Forces's Solar PV Project

    The Irish Defence Forces continues its programme of implementing renewable energy onsite generation through the installation of Solar PV systems.

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  5. TG4_1200-x-800-px
    Climate Action

    Energy efficiency at TG4

    TG4's philosophy is to do more with less - this ideology has been actioned through their efficient use of energy and 'green' project planning.

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  6. westpark-5
    Business & Industry

    Exercising Energy Efficiency

    Westpark Fitness, a gym with almost 5,000 members in Tallaght, Co. Dublin, has gone through the EXEED grant process and implemented energy and cost saving initiatives.

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  7. Aurivo-logo-1200px-x-800px
    Renewable Technologies
    Business & Industry

    Donegal dairy plant cuts costs by €347,000

    Aurivo followed SEAI's EXEED Certified Standard to implement energy efficiency measures for its dairy plant, which has been in operation since the eighties.

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  8. SalesSense-Dundalk-Centre_1200-x-800px
    Business & Industry

    SalesSense team enrols in Energy Academy

    SalesSense enrolled 71 staff members in SEAI's Energy Academy this year. The Academy provided a great opportunity to educate their employees on energy use and energy efficiency in Ireland.

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  9. Home Energy Upgrades

    Having a heat pump

    Fergal Cantwell had a heat pump installed in his County Kilkenny home in October 2019 as part of an overall retrofit of his house.

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  10. Dublin-city-grab_1200-x-800-px
    Business & Industry
    Climate Action

    Dublin City Council leading by example

    Dublin City Council (DCC) won the Leadership in Public Sector Award at the SEAI Energy Awards 2020 and is one of ten award winners.

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  11. terra-PV-1200-x-800
    Business & Industry

    Energy saving programme at Terra Spirits & Liqueurs

    Terra Spirits & Liqueurs is the winner of the Small to Medium Business Award at the SEAI Energy Awards 2020.

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  12. Dunleer-town
    Communities

    Dunleer SEC inspiring communities nationwide

    Dunleer Sustainable Energy Community (SEC) is the 2020 winner of the Inspirational Energy Community award.

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  13. Astellas-Ireland-1200x800px
    Renewable Technologies
    Business & Industry

    Astellas Ireland five year energy management plan

    Astellas Ireland took home the top prize for Energy Team of the Year in the 2020 SEAI Energy Awards.

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  14. St-Bricins-1
    Home Energy Upgrades

    Retrofit Converts 1960's House into Low Carbon Home

    As Ireland prepares for major changes in favour of a greener and more sustainable society, retrofitting homes will play a prominent role in delivering on climate targets.

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  15. Bungalow-1
    Home Energy Upgrades

    Retrofitting Ireland: '70s style house renovated into A-rated home

    This detached bungalow in Co Wicklow was a typical build of this decade - fossil fuel reliant, with little insulation and low performance windows and doors. Before the deep retrofit, this home had a Building Energy Rating of E1

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  16. DCC
    Climate Action
    Communities

    Little Stars Creche Welcome Renewable Energy Technology

    Dublin City Council (DCC) install an air to water heat pump system and LED lighting at Little Stars Creche as part of their focused effort to reduce carbon emissions and deliver on 2020 climate targets.

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