SEAI Grants for New Self-Builds in Ireland: What Actually Applies

One of the most common questions from Irish self-builders is: “What SEAI grants can I get for my new build?” The short, slightly painful answer is: most SEAI grants don’t apply to new builds. But there are important incentives and obligations that do, and getting them wrong costs money.

This article cuts through the confusion.

The core misunderstanding: SEAI grants are retrofit grants

The majority of SEAI’s grant programmes — the Better Energy Homes scheme, the SEAI One Stop Shop, the Community Energy Grants — are designed for existing homes built before 2021 to help them improve their energy performance. They cover things like attic insulation, wall insulation, heat pump upgrades, and solar PV for homes that currently have poor BER ratings.

New builds don’t qualify for these grants. The reasoning is straightforward: new builds are already required by building regulations to meet high energy standards (NZEB — Nearly Zero Energy Building). The grant money is targeted at the much larger existing housing stock, which is where the biggest energy improvement potential lies.

If you’re building new, assume the retrofit grant schemes don’t apply. Here’s what does:

What actually applies to new builds

1. Zero VAT on solar PV installation (ongoing)

Since May 2023, the VAT rate on solar PV panels and installation is 0% in Ireland — down from 13.5%. This is permanent (not a temporary rate), and it applies to residential solar PV systems regardless of whether the property is a new build or an existing home.

For a typical 8kWp system (suitable for a 200sqm+ house with a heat pump), this saves roughly €2,000–€4,000 compared to the pre-2023 VAT rate.

Important: This applies to the PV panels and installation. Battery storage is VAT-rated at 9% (see below). Monitoring equipment and other ancillary items are typically at 13.5%.

2. Reduced 9% VAT on heat pump supply and installation (from January 2025)

From 1 January 2025, heat pump supply and installation carries a 9% VAT rate, reduced from 13.5%. This applies to:

• Air source heat pumps (ASHPs)
• Ground source heat pumps (GSHPs)
• Water source heat pumps
• Heat pump installation labour

For a mid-to-high spec build with an ASHP system costing €18,000–€25,000 including installation, the reduction from 13.5% to 9% saves approximately €800–€1,100.

For a GSHP system (€35,000–€55,000 including borehole or ground loop), the saving is €1,500–€2,500.

This VAT reduction was announced in Budget 2025 specifically to support uptake of heat pump technology as part of Ireland’s climate targets.

3. Battery storage: 9% VAT (from January 2025)

Standalone battery storage systems (such as Victron, Solis, Fronius, etc.) also benefit from a 9% VAT rate from January 2025, again reduced from 13.5%.

For a 10kWh battery system costing €8,000–€12,000 installed, this saves €360–€540.

4. Micro-generation: sell excess electricity back to the grid

Under the Micro-generation Support Scheme (MSS), households with solar PV can sell surplus electricity back to the grid at a guaranteed rate. The export tariff (Clean Export Guarantee) varies by electricity supplier but is typically in the range of €0.10–€0.20/kWh as of early 2026.

This applies to new builds exactly the same as existing homes — as long as your system is grid-connected, registered with your network operator, and you have a smart meter, you can participate. Your ESB Networks connection application will flag this.

For sizing purposes: a well-sized PV system for a heat-pump-heated home (say 6–10kWp on a south-facing or split east/west roof) will typically generate more than you use in summer and less than you use in winter. Exporting summer surplus offsets your higher winter bills.

The obligation side: what you must do

New builds don’t just get incentives — they carry mandatory energy requirements.

NZEB: Nearly Zero Energy Building standard

All new dwellings must achieve NZEB standard under Part L of the Building Regulations. In practice, this means:

• Maximum primary energy use of 50 kWh/m²/year (or lower, depending on energy source mix)
• Minimum 20% of energy from renewable sources (in practice, a heat pump with good SCOP or solar PV achieves this easily)
• Minimum airtightness of 5 ACH50 (air changes per hour at 50 Pascals) — a more airtight house is easier to heat and runs the heat pump more efficiently
• Minimum BER of A3 for new dwellings

A BER assessor must assess the dwelling using DEAP (Dwelling Energy Assessment Procedure) software and issue a BER certificate before the dwelling is occupied. The certificate must be lodged with the SEAI register.

Your architect or building services engineer will run the DEAP calculation as part of design to ensure compliance before you start building.

MVHR: when it’s required vs recommended

Mechanical ventilation with heat recovery (MVHR) is not legally mandated for every new build — Part F (Ventilation) Regulations require adequate ventilation, which can be achieved with a ventilation strategy. However, in practice:

• If your airtightness is 3 ACH50 or below (common in good builds, required for passive), MVHR is effectively the only viable ventilation strategy
• In a well-insulated house with a heat pump, MVHR typically reduces heating energy demand by 20–30%
• The DEAP tool rewards MVHR with a better BER — in many mid-spec houses, MVHR is needed to get from A3 to A2

Think of MVHR not as a box-ticking exercise but as a core part of your building services that needs to be properly designed, installed by a commissioning-competent contractor, and maintained (filter replacement every 6–12 months).

Registered contractors for key systems

SEAI maintains registers of contractors qualified to install heat pumps and other renewable energy systems. For new builds, there’s no mandatory requirement to use an SEAI-registered contractor — unlike retrofit grants, which do require SEAI-registered contractors.

However:

• Your building regulation compliance (assigned certifier, BCAR) requires that mechanical systems are installed to specification
• If you ever want to retrofit-grant-upgrade any system in future, having a properly installed and documented system from day one helps
• Insurance and warranty considerations: most heat pump manufacturers’ warranties require competent installation

In practice, any reputable mechanical contractor doing rural Irish new builds will know the systems and install to a professional standard. Check references and ask who their manufacturer-training is with.

What doesn’t apply to new builds

To be explicit about the schemes that often come up in conversation:

The BER certificate: your proof of compliance

The BER (Building Energy Rating) certificate is issued by an SEAI-registered BER assessor based on a DEAP calculation run against your completed house. For a new build:

1. Your architect or energy consultant runs a design-stage DEAP to check you’ll hit A3 or better before you start building. Changes at design stage are cheap. Changes during construction are not.

2. As construction progresses, the BER assessor may do a mid-construction inspection to verify airtightness test results and measure installed U-values.

3. Post-completion, the BER assessor runs the as-built DEAP calculation and issues the BER certificate. This is required for your grant of occupancy / fire safety certificate / planning compliance sign-off.

The certificate is also important for resale: BER is increasingly weighted in house valuations, and an A-rated house commands a premium in the market.

Summary: what to actually budget for

If you’re planning a mid-to-high spec new build in rural Ireland:

The VAT reductions are worth capturing — make sure your quantities surveyor and contractor are pricing on the correct VAT rates. Some contractors may quote incorrectly (particularly on heat pump systems if they’re not up to date on the January 2025 change).

Keeping up to date

SEAI updates its schemes and rates, and VAT rates can change in Budgets. For current information:

• SEAI.ie — scheme details, registered contractors, BER assessor register
• Revenue.ie — current VAT rates on construction services
• gov.ie/budget — each year’s budget measures for energy and housing

This article reflects the position as of early 2026. Grant schemes and VAT rates are subject to change. Verify current rates with SEAI and your tax advisor before making decisions. This is general information, not professional financial or tax advice.