Energy Upgrades

If you’re thinking about making your home or business more energy efficient, there are a range of grants and supports available to help reduce costs and improve comfort.

Home Energy Upgrades

Whether you want to improve one area or completely upgrade your home, SEAI have a range of energy upgrade grant options. Simple upgrades like attic insulation, cavity wall, or external wall insulation can reduce heating bills by up to €230 annually. A full home retrofit can lead to savings of €750 to €1,120 per year on energy costs.

Individual Energy Upgrade Grants

Better Energy Homes and Solar PV Grants offer homeowners a chance to upgrade the energy efficiency of their home gradually with individual grants available for wall or attic insulation, new windows and doors, heat pumps, solar thermal and solar PV. Learn more: Individual Energy Upgrade Grants | Home Energy Grants | SEAI

Fully Funded Energy Upgrades

If you are a homeowner and receive certain social welfare payments you may qualify for a free energy efficiency upgrade to your home. Check out the eligibility criteria on the SEAI webpage: Fully Funded Energy Upgrades | Home Energy Grants | SEAI

Complete Home Energy Upgrade

The National Home Energy Upgrade Scheme provides a complete home energy upgrade for your home and is managed via a One Stop Shop service provider.

One Stop Shop services for homes | Home Energy Grants | SEAI

New Individual Energy Upgrade Grants

From 2 March 2026 there will also be a range of new grants from SEAI:

• Windows and Doors (grants available at a building fabric standard*)
  A new grant will be introduced for the installation of energy-efficient windows and doors (to replace poorly performing windows and doors) for homes where the building fabric will meet or already meets a specified minimum performance standard.
• Attic Insulation for First Time Buyers*
  To enable First Time Buyers of existing homes to get on the energy upgrade journey – quickly and at minimal cost – a specific grant for attic insulation for these new homeowners will be introduced.
• ‘Second Wall’ measure*
  Many homeowners have previously availed of a grant for cavity or internal wall insulation. These homeowners may want to further improve the level of wall insulation – to make their homes even warmer and cheaper to heat.

New and enhanced grants for homeowners on Qualifying Welfare Payments*

From the 2nd March 2026 homeowners on qualifying welfare payments will be able to get higher grants for attic and cavity wall insulation. These grants will often cover most or all of the cost and won’t affect their place on the Warmer Homes Scheme waiting list.

For more information, see SEAI’s website: www.seai.ie/homeenergyupgrades

* These are new or additional measures, which will be accessed under the SEAI’s (existing) Better Energy Homes Scheme. Between 2019 and the end of 2025, the Government has invested €1.3 billion to support upgrades in over 244,000 (almost a quarter of a million) homes. Learn more about the new National Residential Retrofit Plan.

Solar PV Scheme for Medically Vulnerable Customers

If a person in your household relies on life support equipment such as dialysis machines, ventilators, or similar devices, you may be entitled to free installation of solar photovoltaic (PV) panels. To qualify the person must be registered with your electricity supplier under the life support category of the Priority Services Register, and then discuss eligibility with your supplier. Find out more: Extension of Solar PV Scheme for Medically Vulnerable Customers

Loan to support Home Energy Upgrade

If you need a loan to help fund your energy retrofit the Home Energy Upgrade Loan Scheme offers Government backed loans up to €75,000 from as little as 3% interest. This loan must be used for home energy upgrades carried out by a SEAI Registered One Stop Shop or Project Co-ordinator. Find out more: Home Energy Upgrade Loan Scheme 2025 - SBCI

Business and Community Energy Upgrades

SEAI Business grants for energy upgrades

The Sustainable Energy Authority of Ireland (SEAI) offers a range of initiatives and supports to improve business energy efficiency. These include:

• Energy audits
• Free training
• Financial supports for energy efficiency investments
• Programmes such as EXEED and the Support Scheme for Renewable Heat (SSRH)

Grants are available for small and medium businesses to upgrade buildings with:

• Solar thermal or solar PV
• Heating and cooling systems
• Building insulation and fabric improvements

These include Government-funded EXEED and Support Scheme for Renewable Heat (SSRH). The SEAI also continues to support energy audits, provides free training for businesses, and provides financial supports to those businesses that want to invest in energy efficiency.

There are a range of different SEAI grants available for small and medium businesses to enhance the energy efficiency of their buildings. Choose from solar thermal and solar PV, building fabric upgrades, heating and cooling upgrades and Learn more from the SEAI website.

Solar Thermal

Solar thermal systems enable businesses to generate their own solar energy for hot water. SEAI offer a business grant of up to 30% for solar thermal.

This grant is open to businesses, farms, public bodies, community groups and charities seeking to reduce their carbon footprint and save money.

Non-Domestic Microgen Grant – Solar PV

The Non-Domestic Microgen Grant (NDMG)helps businesses, farms, schools, community centres and non-profit organisations install solar PV panels to generate electricity on site and help reduce commercial electricity costs.Grant funding is available for systems up to a maximum 1000kWp.

Building fabric upgrades

How well your building retains heat directly impacts your fuel costs. Make your building more comfortable by replacing the roof fabric or better insulating the walls with a SEAI grant of up to 30% for wall and roof fabric.

SEAI Community Grant

This grant supports the upgrade of homes, community buildings and businesses across Ireland to become more energy efficient and reduce costs. Access capital funding, partnerships and technical support.

Community grants and funding | SEAI