SEAI Grants for Irish Businesses: The Complete 2026 Guide

Irish businesses have access to several financial supports for energy efficiency — but most aren’t using them. The schemes exist, the money is available, and the application processes are manageable. Yet the majority of Irish SMEs have never applied.

The main barrier isn’t complexity. It’s awareness. Business owners don’t know what’s available, assume they don’t qualify, or think the amounts aren’t worth the effort.

This guide covers every major scheme available to Irish businesses for energy efficiency in 2026. We’ll update it annually as rates and rules change.

Important: Grant amounts and eligibility criteria are updated periodically by SEAI and other bodies. This guide reflects the general structure of available schemes as of early 2026. Always verify current figures at seai.ie before making financial decisions. Last updated: March 2026.

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Overview: What’s Available

Scheme	Who It’s For	What It Covers	Typical Support Level
SEAI Business Energy Upgrades (SEUS)	SMEs of all sizes	Capital equipment upgrades	30–50% of costs
SEAI Business Energy Audit Voucher	Any business	Professional energy audit	Significant portion of audit cost
Local Enterprise Office (LEO) Grant	Micro-enterprises (fewer than 10 staff)	Energy efficiency improvements	Up to 50% of costs
Accelerated Capital Allowance (ACA)	Any business paying corporation tax	Qualifying energy-efficient equipment	100% year-one tax write-off
EXEED Programme	Larger businesses/projects	Comprehensive energy management	Project-specific

These schemes can be combined. A business could get an SEAI-funded audit, apply for SEUS capital grants, and claim the ACA on qualifying equipment — significantly reducing the net cost of energy improvements.

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1. SEAI Business Energy Upgrades Scheme (SEUS)

The Business Energy Upgrades Scheme (previously called SEAI’s Support Scheme for Energy Audits and Upgrades) is the primary capital grant scheme for business energy efficiency.

What it covers

• Lighting upgrades (LED, controls)
• Heating system upgrades (heat pumps, boiler replacements, controls)
• Building fabric improvements (insulation, glazing)
• Refrigeration efficiency improvements
• Process energy improvements
• Energy monitoring and control systems

Who qualifies

• Irish-registered businesses
• Premises must be in the Republic of Ireland
• Energy audit required before capital grant application
• Work must be carried out by qualified contractors
• Grant must be approved before work begins

Grant levels

Support levels vary by measure and business size, but typically range from 30% to 50% of eligible costs. Specific rates are published on seai.ie and updated periodically.

Maximum amounts apply per measure and per project. For most SME projects, the grant cap is generous enough to cover the full eligible percentage.

Application process

1. Energy audit — get a professional energy audit (SEAI Audit Voucher covers the cost)
2. Identify measures — based on audit recommendations
3. Get quotes — from qualified contractors
4. Apply online — through the SEAI business portal
5. Wait for approval — typically 4-8 weeks
6. Complete works — only after grant approval
7. Submit evidence — invoices, commissioning certificates
8. Receive payment — SEAI pays the grant after verification

Critical rule: Work must not begin before grant approval. SEAI will not fund retrospective work. Plan your timeline accordingly.

Practical tips

• Start with the energy audit — it’s required anyway and the audit voucher covers the cost
• Apply for the audit voucher and capital grant sequentially, not simultaneously
• Keep all documentation: audit report, quotes, invoices, commissioning certificates, before/after photos
• Budget for your contribution (the 50-70% not covered by the grant) — but remember the ACA can offset this through tax savings

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2. SEAI Business Energy Audit Voucher

This is the first step for most businesses — and it’s deliberately low-barrier.

What it covers

A professional energy audit of your business premises, including:

• Site survey and equipment inventory
• Energy consumption analysis
• Waste identification
• Written report with prioritised, costed recommendations

Our guide to commercial energy audits explains exactly what’s involved.

Who qualifies

• Irish-registered businesses
• Minimum annual energy spend threshold applies
• Must use a registered energy auditor

Grant level

The voucher covers a significant portion of the audit cost. For most SMEs, this brings the net cost of a professional audit to a very manageable figure.

Why it matters

The audit report is:

• Your roadmap for energy improvements
• Required for SEUS capital grant applications
• Evidence of energy efficiency measures for BER certification
• Useful for ACA claims (demonstrates that equipment was chosen for energy efficiency)

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3. Local Enterprise Office (LEO) Energy Efficiency Grant

For micro-enterprises (fewer than 10 employees), the Local Enterprise Office may provide energy efficiency grants.

What it covers

• Energy efficiency improvements for small businesses
• Can include lighting, heating, insulation, and equipment
• Typically tied to a broader business development context

Who qualifies

• Micro-enterprises with fewer than 10 employees
• Must be trading and based in Ireland
• Varies by local LEO — check with your county LEO

Grant levels

Up to 50% of eligible costs, subject to maximum amounts set by each LEO.

How to apply

Contact your local LEO directly. Each county’s LEO manages its own application process and timelines. Some run specific energy efficiency initiatives; others fund energy improvements under general business development grants.

Tip: LEO grants can sometimes be combined with SEAI schemes for different aspects of the same project. Check eligibility for both before committing.

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4. Accelerated Capital Allowance (ACA)

This isn’t a grant — it’s a tax relief. But for profitable businesses, it’s extremely powerful.

How it works

The ACA allows businesses to write off 100% of the cost of qualifying energy-efficient equipment against tax in the year of purchase, instead of spreading it over the standard 8-year depreciation period.

For a company paying 25% corporation tax, this means a qualifying €10,000 investment generates a €2,500 tax saving in year one (rather than €1,250 spread over 8 years).

We cover this in detail in our dedicated ACA guide.

Qualifying equipment

Equipment must be on Revenue’s list of qualifying energy-efficient products, covering categories including:

• Lighting and lighting controls
• Heating and cooling equipment (including heat pumps)
• Motors and drives
• Building energy management systems
• Refrigeration equipment
• Electrical and electronic equipment

Combining ACA with SEAI grants

This is the key combination most businesses miss. You can:

1. Get an SEAI grant covering 30-50% of the project cost
2. Claim the ACA on your net expenditure (the amount after the grant)

Example:

• LED lighting project cost: €20,000
• SEAI SEUS grant (40%): -€8,000
• Your net cost: €12,000
• ACA tax saving (25% of €12,000): -€3,000
• Effective cost after grant + ACA: €9,000 (55% reduction)

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5. EXEED Programme

The EXEED (Excellence in Energy Efficient Design) programme is for larger projects and businesses committed to energy management best practice.

What it covers

EXEED supports businesses implementing systematic energy management approaches, including:

• New builds designed for energy efficiency from the start
• Major refurbishments incorporating best-practice energy design
• Implementation of ISO 50001 energy management systems

Who it’s for

Larger businesses and projects where the potential energy savings justify a more comprehensive approach. EXEED is project-specific and involves more engagement with SEAI than the standard SEUS route.

How it works

SEAI provides support (financial and technical) throughout the project lifecycle — from design through construction to verification. The programme ensures that energy efficiency is embedded in the design rather than bolted on afterwards.

Best for: Hotels and larger commercial buildings where energy spend justifies a comprehensive approach. The EXEED framework is particularly relevant for new builds and major renovations.

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Grant Stacking: Maximising Your Support

The most effective approach combines multiple schemes:

Recommended sequence

1. Start with the SEAI Business Energy Audit Voucher — get a professional audit at reduced cost
2. Apply for SEUS capital grants — based on audit recommendations
3. Apply for LEO grants (if eligible) — for measures not covered by SEUS, or for additional support
4. Claim ACA on qualifying equipment — through your annual tax return
5. Set up energy monitoring — to verify savings and maintain them

What the numbers look like

For a typical SME energy upgrade project costing €25,000:

Item	Amount
Total project cost	€25,000
SEAI SEUS grant (40%)	-€10,000
Net cost to business	€15,000
ACA tax saving (25% of €15,000)	-€3,750
Effective net cost	€11,250
Annual energy saving (typical)	€5,000–€7,500
Effective payback	1.5–2.3 years

Without grants and ACA, the same project would cost €25,000 with a 3.3–5 year payback. The financial supports more than halve the payback period.

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Common Mistakes to Avoid

Starting work before grant approval

The single most common and most costly mistake. SEAI will not fund work that started before your grant was approved. No exceptions. If your contractor is pushing to start early, push back.

Not getting an audit first

Skipping the audit and going straight to equipment purchase often means investing in the wrong measures. The audit identifies your biggest opportunities and builds the case for grant applications.

Ignoring the ACA

Many business owners and their accountants aren’t aware of the ACA for energy-efficient equipment. It’s claimed through your tax return — tell your accountant before filing.

Applying for one scheme when you qualify for several

Check eligibility for all schemes before applying. The audit, SEUS, LEO, and ACA can work together.

Not keeping documentation

Keep everything: audit reports, quotes, invoices, commissioning certificates, before/after energy bills, photos. You’ll need them for grant claims and ACA claims.

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Next Steps

1. Book a commercial energy audit — this is always the first step. The SEAI Audit Voucher makes it affordable.
2. Read our energy audit guide to understand exactly what’s involved
3. Check the ACA guide if you’re a profitable business paying corporation tax
4. Understand your current energy costs so you can quantify the savings opportunity

The funding is there. The process is manageable. The returns are clear. The businesses that benefit are the ones that start.

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This guide is maintained as a reference and updated when SEAI grant amounts or eligibility criteria change. Last updated: March 2026. Always verify current figures at seai.ie before making financial decisions.

Looking for home energy grants? See our guide to SEAI grants for home ventilation.