SEAI Grant Application: How to Apply Online
All SEAI home energy grants are applied for online through the SEAI portal at hes.seai.ie. This guide walks you through the entire application process, what documents you need, and the mistakes that get people disqualified.
Quick Answer
Apply for SEAI grants online at hes.seai.ie. You need your MPRN (from your electricity bill), PPS number, Eircode, and SEAI-registered contractor details. Solar grant applications are often approved within minutes. The critical rule: you must receive your Letter of Offer BEFORE any work begins.
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy
Last updated March 2026
What you need before applying
Gather these before starting your application. A missing document will delay your approval.
MPRN
Your Meter Point Reference Number — an 11-digit number on your electricity bill. This identifies your property in the SEAI system.
PPS Number
Your Personal Public Service number for SEAI identity verification.
Eircode
Your property's Eircode. Find it at finder.eircode.ie.
Contractor details
Your chosen contractor's SEAI registration number. They must be on the SEAI registered list.
Bank details
Your IBAN for grant payment (individual route). Through a one-stop-shop, the grant is deducted from your invoice.
BER certificate
A current BER certificate number (required for some grant types). Cost: €150–€300, with a €50 SEAI grant.
How to apply for an SEAI grant: step-by-step
Follow these steps in order. The most important rule: apply and receive approval before any work begins.
Get quotes from SEAI-registered contractors
Choose a contractor from the SEAI registered list. Get at least 2–3 quotes. Have a signed contract in place (but do NOT pay any deposit or allow work to start).
Create an account at hes.seai.ie
Go to hes.seai.ie and create an account. You'll need your email address and to set a password. This is the SEAI grant portal where you manage all applications.
Select your grant type
Choose which grant(s) you're applying for: solar PV, insulation, heat pump, windows, heating controls, etc. You can apply for multiple grants in one application.
Enter property details
Enter your MPRN, Eircode, and PPS number. The system verifies your property is eligible (built before 2021, no previous grant claimed for the same measure at this MPRN).
Add contractor information
Enter your chosen contractor's SEAI registration number. The system verifies they are registered for the correct category.
Submit your application
Review all details and submit. For solar PV grants, approval is often within minutes. For other grant types, allow 2–4 weeks.
Receive your Letter of Offer
SEAI issues a Letter of Offer confirming your grant amount and conditions. This letter is valid for 8 months. Do NOT start any work before receiving this letter.
Have the work completed
Your SEAI-registered contractor carries out the installation. Keep all invoices, certificates, and documentation.
Complete post-work BER assessment
A registered BER assessor surveys your home after the work. The updated BER certificate is published on the National BER Register.
Receive grant payment
Your contractor submits the Declaration of Works to SEAI. Once verified, SEAI pays the grant directly to your bank account within 4–6 weeks.
SEAI grant portal login
The SEAI grant application portal at hes.seai.ie is where you apply for grants, track your application status, upload documents, and view your grant history. You can also check whether your Letter of Offer has been issued.
What you can do on the portal:
- Submit new grant applications
- Track application status in real time
- View and download your Letter of Offer
- Upload required documents
- Check grant payment status
- View grant history for your property
Common mistakes to avoid
Starting work before receiving your Letter of Offer
This is the #1 reason grant applications are rejected. If you begin any work — even ordering materials, paying a deposit, or allowing preparatory work — before receiving your written Letter of Offer, you are permanently disqualified from the grant for those works.
Using a non-SEAI-registered contractor
Your contractor must be on the SEAI register for the specific type of work. Always verify registration before signing a contract.
Missing the 8-month deadline
Your Letter of Offer is valid for 8 months. If the work is not completed and documentation submitted within this period, the offer expires and you must reapply.
Skipping the post-work BER assessment
A BER assessment after the work is completed is mandatory for grant payment. Budget €150–€300 for this.
Applying after work has begun
You cannot apply for a grant retroactively. The application must be submitted and approved before any work commences.
How long does the SEAI grant application take?
| Stage | Typical Time |
|---|---|
| Online application submission | 15–30 minutes |
| Solar PV grant approval | Minutes to 48 hours |
| Other grant approval | 2–4 weeks |
| Letter of Offer validity | 8 months |
| Installation (solar PV) | 1–2 days |
| Post-work BER assessment | 1–2 weeks to schedule |
| Grant payment after documentation | 4–6 weeks |
| Total (solar PV, typical) | 6–10 weeks |
Need an SEAI-registered contractor first?
Get quotes from verified installers before you apply.
SEAI Grant Application FAQ
How do I apply for an SEAI grant?
Apply online at hes.seai.ie. Create an account, select your grant type, enter your MPRN, PPS number, Eircode, and contractor details. Submit the application and wait for your Letter of Offer before starting any work.
Where is the SEAI grant application form?
The SEAI grant application is entirely online at hes.seai.ie. There is no paper form. You create an account and apply through the online portal.
How long does SEAI grant approval take?
Solar PV grant applications are often approved within minutes to 48 hours. Other grant types (insulation, heat pumps, windows) typically take 2–4 weeks. During peak periods it can take longer.
Can I track my SEAI grant application?
Yes. Log in to your account at hes.seai.ie to check your application status, view your Letter of Offer, and track grant payment progress.
What happens after I submit my application?
SEAI reviews your application and issues a Letter of Offer confirming your grant amount. For solar PV this is often within minutes. Once you have the Letter of Offer, you can proceed with the installation. After work is complete, your contractor submits documentation and SEAI pays the grant to your bank account.
How long is the Letter of Offer valid?
The SEAI Letter of Offer is valid for 8 months from the date of issue. All work must be completed and documentation submitted within this period, or the offer expires.
Can I apply for multiple grants at once?
Yes. You can apply for multiple grants (e.g. solar PV + insulation + heating controls) in a single application. See our home energy grants guide for all available grants.
What if my application is rejected?
SEAI will explain the reason for rejection. Common reasons include: home built after 2020, previous grant claimed at the same MPRN, work already started, or contractor not registered. You can usually reapply once the issue is resolved (except if work has already begun).
Related SEAI Grant Guides
Sources
Last updated: March 2026
John Rooney is the founder of Solar Info and has been covering the Irish solar energy market since 2023. He fact-checks all content against official SEAI data and maintains relationships with SEAI-registered installers across Ireland.
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