SEAI Non Domestic Microgeneration Grant Business Guide
Updated 6 September 2026 · By SolarNevs Research Desk, Dealer surveys + verified sources · 1 source · Method ↗
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Key Takeaways
- The Non-Domestic Microgen Grant (NDMG) provides financial assistance to help businesses and other sectors to install solar PV panels to generate electricity on site.
- Eligible commercial entities can receive a government grant of up to €162,600, with grant funding available for systems up to a maximum 1000kWp.
- Businesses must appoint an approved company from the SEAI register and execute a formal contract before grant submission.
- Works must strictly not commence prior to formal issuance of the official Letter of Offer, which remains valid for eight months.
- Under Department of Finance circular 44/2006, grant receipts exceeding €10,000 in a calendar year require an active Tax Clearance Certificate verified via Revenue Online Service (ROS).
- Grid connection notification to ESB Networks takes at least 4 weeks / 20 working days before installation work can proceed.
Business Eligibility and Commercial Solar Economics
Irish enterprises face volatile commercial electricity tariffs, making on-site renewable generation a cornerstone of corporate cost control. Under national policy, the Non-Domestic Microgen Grant (NDMG) provides financial assistance to help businesses and other sectors to install solar PV panels to generate electricity on site.
The commercial incentive structure offers substantial capital relief:
- Scale of Aid: Qualified corporate facilities can receive a government grant of up to €162,600.
- System Boundaries: Grant funding is available for systems up to a maximum 1000kWp, accommodating everything from small convenience stores to expansive manufacturing facilities and agricultural cold stores.
Procurement and Contractor Engagement Rules
The SEAI enforces strict governance to ensure installations meet national technical standards:
- Approved Contractor Roster: Business owners must select your preferred installation company from our Register.
- Contract Execution: Before you apply for your grant, you must choose your preferred company and agree a formal contract with them for the agreed work.
- Strict Sequencing: Companies must wait for your 'letter of offer' before starting the works. The SEAI rules are unequivocal: do not start works until you receive your 'letter of offer'. Grant offers are valid for eight months from the date you receive your 'letter of offer'.
Grid Interconnection and Financial Compliance
Navigating state compliance requires coordination between ESB Networks, the Revenue Commissioners, and SEAI:
- Distribution Network Notice: The installation company must apply to ESB Networks to connect the solar array. They must do this before installing the solar PV system. This application process takes at least 4 weeks / 20 working days.
- Statutory Tax Clearance: In line with the Department of Finance circular 44/2006, If you receive grants, subsidies or similar type payments from a government department or public authority of more than €10,000 during a calendar year, you will need a Tax Clearance Certificate.
- Online Verification: Corporate entities must verify compliance digitally: the eTC system allows you to apply for a Tax Clearance Certificate online. In general, you will have to apply using: - Revenue Online Service (ROS) if you are a business customer.
- Disbursement Process: Following project commissioning, applications for payment can only be processed once ALL documentation has been uploaded. Businesses should please allow between 4 to 6 weeks for payment, with additional time if an inspection is required.
Milestone / Parameter | Scheme Requirement | Rule & Timeline |
|---|---|---|
Maximum Grant Value | Non-Domestic Microgen Grant aid | Up to €162,600 |
Maximum System Capacity | Sized for commercial on-site generation | Up to 1000 kWp |
Installer Procurement | Selected from registered SEAI companies | Contract agreed prior to grant application |
Letter of Offer Validity | Formal approval before starting works | Valid for 8 months from issue date |
ESB Networks Application | Grid connection notice before installation | Minimum 4 weeks / 20 working days |
Tax Clearance Threshold | Dept of Finance circular 44/2006 | Mandatory for grants > €10,000 in calendar year (via ROS/eTC) |
Payment Processing | Post-commissioning documentation sign-off | 4 to 6 weeks (additional time if inspected) |
Frequently asked questions
When is a Tax Clearance Certificate required for SEAI solar grants?
Under Department of Finance circular 44/2006, applicants receiving grants of more than €10,000 during a calendar year must hold a valid Tax Clearance Certificate.
How do businesses verify tax clearance for SEAI solar grants?
Business customers must apply using the Revenue Online Service (ROS) via the electronic Tax Clearance (eTC) system.
Can a company start solar installation work before receiving the SEAI grant offer?
No, applicants must wait for their 'letter of offer' before starting the works; early installations are disqualified.
What is the maximum grant available for commercial solar installations?
Eligible commercial entities can receive a government grant of up to €162,600 for systems up to 1000kWp.
References
- SEAI Commercial Solar PV Non-Domestic Microgen Grant — accessed 28 August 2026
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