Solar Panels Leitrim — Costs, Grants and Local Installers in 2026
A 4 kWp solar panel system in Leitrim costs between €8,000 and €10,500 installed, or roughly €6,200–€8,700 after the SEAI Solar Electricity Grant of up to €1,800. Leitrim is one of Ireland's rainiest and cloudiest counties, with solar irradiance of roughly 850–900 kWh/m² per year — lower than the national average. A 4 kWp system here generates approximately 3,100–3,300 kWh per year. Payback is longer than in sunnier counties: 10–13 years is a realistic range. But over a 25-year panel lifespan, a well-sited system still delivers significant savings, and the SEAI grant is worth the same €1,800 whether your roof is in Manorhamilton or Marbella.
Only 8 SEAI-registered installers are based in or regularly cover Leitrim as of May 2026. In practice, homeowners across the county draw on installers from Sligo, Cavan, and Galway. Getting two or three quotes is important — and verifying that each installer is currently on the SEAI registered list before any contract is signed is essential.
Solar in Leitrim: The Honest Picture
Leitrim consistently ranks among Ireland's wettest counties. The northwest position, proximity to Atlantic weather systems, and the drumlin and lake landscape around Lough Allen and Lough Gill means cloud cover is frequent. Annual solar irradiance of 850–900 kWh/m² compares with 1,050–1,100 kWh/m² in Cork or Kerry. That is a real difference.
What it means in practice:
- A 4 kWp system in Leitrim generates roughly 3,100–3,300 kWh/year versus 3,300–3,700 kWh/year in Cork.
- Annual electricity savings will be modestly lower than in southern counties.
- Payback extends: expect 10–13 years rather than the 7–9 years quoted by installers in Cork or Wexford.
The case for solar in Leitrim is not the same as the case in Kerry. But it is still a case. Panels carry 25-year performance warranties. Once the system has paid back its net cost, years 11 through 25 are essentially free electricity from your roof. The SEAI grant is unchanged regardless of county — €1,800 is €1,800 whether you live in Carrick-on-Shannon or Cobh. And electricity prices in Ireland have risen sharply since 2021, which improves the return on any solar investment irrespective of location.
The honest conclusion: solar makes financial sense in Leitrim over the long term, but with a longer payback than counties further south. If your primary motivation is a 7-year payback, Leitrim may not deliver that. If your motivation is reducing bills over the lifetime of your home and capturing the available grant, the numbers still work.
Solar Panel Costs in Leitrim — 2026
Typical installed costs for Leitrim residential systems, May 2026. Gross figures cover supply, installation, inverter and commissioning on a standard south- or southwest-facing roof. After-grant figures apply the full SEAI Solar Electricity Grant. Annual savings assume 30% self-consumption at a blended rate of 28c/kWh plus Clean Export Guarantee payments. Leitrim's lower irradiance means savings are toward the lower end of comparable national ranges.
| System size | Gross cost | SEAI grant | Net cost after grant | Est. annual saving | Approx. payback |
|---|---|---|---|---|---|
| 3 kWp (8–10 panels) | €7,000–€9,000 | €1,600 | €5,400–€7,400 | €520–€700 | 9–13 years |
| 4 kWp (10–13 panels) | €8,000–€10,500 | €1,800 | €6,200–€8,700 | €650–€880 | 10–13 years |
| 5 kWp (13–16 panels) | €9,500–€12,000 | €1,800 | €7,700–€10,200 | €780–€1,050 | 10–13 years |
| 6 kWp (15–19 panels) | €11,000–€14,000 | €1,800 | €9,200–€12,200 | €900–€1,200 | 10–14 years |
The SEAI grant is capped at €1,800 regardless of system size. A 4 kWp system attracts the full €1,800; a 3 kWp system attracts €1,600 (€700/kWp for the first 2 kWp, €200/kWp for the next 1 kWp). Adding a battery typically adds €2,500–€4,500 to the gross cost and is not currently covered by the SEAI Solar Electricity Grant. For a full national cost breakdown, see our solar panels cost Ireland guide.
How Much Electricity Will Solar Generate in Leitrim?
Leitrim receives roughly 850–900 kWh/m² of solar irradiance per year — one of the lower figures in Ireland. For context: Cork and Kerry average 1,050–1,100 kWh/m²; the national average sits around 950–1,000 kWh/m². Leitrim's northwest location, with frequent Atlantic cloud cover and high rainfall, accounts for the shortfall.
For a well-sited Leitrim system — south- to southwest-facing, 30–40 degree pitch, minimal shading — expected annual generation is:
| System size | Annual generation (Leitrim) | vs. national average |
|---|---|---|
| 3 kWp | 2,300–2,600 kWh/year | ~8% below national average |
| 4 kWp | 3,100–3,300 kWh/year | ~8% below national average |
| 5 kWp | 3,800–4,100 kWh/year | ~8% below national average |
| 6 kWp | 4,600–5,000 kWh/year | ~8% below national average |
A typical three-bed semi-D in Ireland uses 4,200–5,000 kWh/year. A 4 kWp Leitrim system generating 3,100–3,300 kWh still covers a meaningful share of that. How much you save depends on when you use electricity: solar produces during daylight hours, and the return is highest when you consume that electricity directly rather than exporting it to the grid at lower rates.
East- or west-facing roofs lose around 15–20% of output versus south-facing. Shading from trees, chimneys, or surrounding topography — more common in Leitrim's drumlin and lakeshore landscape — can reduce output further. Ask any installer for a written generation estimate specific to your roof before signing anything.
The SEAI Solar Electricity Grant in Leitrim
The SEAI Solar Electricity Grant applies identically to all 26 counties. Living in Leitrim does not affect your eligibility or grant amount. The grant is administered by the Sustainable Energy Authority of Ireland (seai.ie) and is worth up to €1,800.
Grant tiers (verified against seai.ie, May 2026)
- First 2 kWp: €700 per kWp (€1,400 for 2 kWp)
- Next 2 kWp: €200 per kWp
- Maximum: €1,800 (reached at 4 kWp and above)
A 3 kWp system attracts €1,600. A 4 kWp or larger system attracts the maximum €1,800.
Eligibility conditions
- Your home must have been built and occupied before 2021. SEAI's exact wording is "built and occupied before 2021."
- No pre-existing BER is required to apply. A post-works BER is required to draw down the grant payment after installation — your installer arranges this as part of the process.
- The installer must be on the SEAI registered companies list at the time the work is carried out. With only 8 registered installers regularly covering Leitrim, it is particularly important to verify this at mgen.seai.ie/register before signing any contract.
- Solar PV must be a new installation. Replacement of existing panels does not qualify.
How the grant application works
The sequence matters. You must apply through mgen.seai.ie and receive a Letter of Offer from SEAI before any works begin. Starting installation before receiving the Letter of Offer means you lose eligibility. Once you have the Letter of Offer, work can proceed. After installation, your installer submits the Declaration of Works, Safe Electric certificate, and NC6 form. You commission a post-works BER. SEAI then pays the grant directly to your nominated bank account — typically 4–6 weeks after all documents are received. For the full step-by-step sequence, see our SEAI solar grant guide.
Holiday homes in Leitrim
Carrick-on-Shannon is one of Ireland's most popular tourist and wedding destinations, and Leitrim has a meaningful number of holiday home properties along the Shannon waterway, Lough Allen, and the Lough Gill border area. The SEAI Solar Electricity Grant does not require that the property is your primary residence. If your holiday home was built and occupied before 2021, it may qualify — check with SEAI directly at seai.ie to confirm your specific property's eligibility before applying.
Finding a Solar Installer in Leitrim
With 8 SEAI-registered installers covering Leitrim as of May 2026, the pool is thin. Most Leitrim homeowners draw on installers based in Sligo, Cavan, or Galway who travel to the county. This is normal for smaller rural counties, but it has a practical implication: travel costs can affect quotes, and availability windows may be longer than in larger counties.
Because the pool is small, getting at least two — ideally three — quotes before committing is more important here than in counties with 30 or 40 registered installers. Prices for the same system can still vary by 15–25% even within a limited installer base.
What to check before signing
- SEAI registration: Verify your installer is currently on the SEAI registered companies list at the time of quoting. Registration can lapse — always check the live list, not just a company's own claim of being registered.
- Safe Electric / RECI certification: Solar PV involves electrical work. Your installer must hold a Safe Electric registration (RECI — Register of Electrical Contractors of Ireland). Verify at safeelectric.ie. SEAI registration and RECI certification are two separate requirements — an installer needs both.
- Written quotation: The quote should specify system size in kWp, panel brand and model, inverter brand, estimated annual generation for your specific roof orientation, and total price at 0% VAT. If any of those are missing, ask.
- Site survey before signing: Any installer quoting without seeing your roof — or at minimum reviewing satellite imagery and asking about orientation and shading — is working blind. A site survey before contract is standard practice.
- Guarantee terms: Panels typically carry a 25-year linear performance warranty. Inverters are usually 5–10 years. Know who backs the warranty if the installer is no longer trading in year 12.
VAT on Leitrim solar installs
Residential solar PV supply and installation is charged at 0% VAT in Ireland since May 2023. This applies to Leitrim homeowners as it does everywhere in the Republic. Any quote for your home should show 0% VAT on the solar PV elements. Commercial installations are charged at the standard 23% rate.
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Request a Free QuoteSolar Panels Leitrim — Frequently Asked Questions
How much do solar panels cost in Leitrim?
A 4 kWp solar panel system in Leitrim costs between €8,000 and €10,500 installed, or €6,200–€8,700 after the SEAI Solar Electricity Grant of €1,800. A 3 kWp system runs €7,000–€9,000 gross (€5,400–€7,400 after the €1,600 grant). Larger 6 kWp systems reach €11,000–€14,000 gross (€9,200–€12,200 after the €1,800 grant). VAT on residential solar in Ireland is 0% since May 2023. With only 8 SEAI-registered installers covering the county, getting at least two quotes is recommended.
Are solar panels worth it in Leitrim given the weather?
Solar panels still make financial sense in Leitrim over the long term, though payback takes longer than in sunnier southern counties. Leitrim receives roughly 850–900 kWh/m² of solar irradiance per year — one of Ireland's lower figures — so a 4 kWp system generates approximately 3,100–3,300 kWh/year and payback typically runs 10–13 years after the SEAI grant. Panels carry 25-year performance warranties, and years 11–25 deliver essentially free electricity. The SEAI grant is the same €1,800 regardless of county. If your main motivation is maximising long-term savings rather than the shortest possible payback period, the case for solar in Leitrim holds up.
How many SEAI-registered solar installers are in Leitrim?
There are 8 SEAI-registered solar installers covering Leitrim as of May 2026 — one of the lowest counts in Ireland. In practice, most Leitrim homeowners use installers based in Sligo, Cavan, or Galway who travel to the county. Because the pool is small, verifying current SEAI registration at mgen.seai.ie before signing any contract is particularly important. Getting two or three quotes remains the right approach even with a limited local installer base.
Is the SEAI solar grant available in Leitrim?
Yes. The SEAI Solar Electricity Grant of up to €1,800 is available to eligible homeowners in all 26 counties, including Leitrim. To qualify, your home must have been built and occupied before 2021, and your installer must be on the SEAI registered companies list at the time the work is carried out. You must apply at mgen.seai.ie and receive a Letter of Offer before any installation work begins. See our SEAI solar grant guide for the full step-by-step process.
Can I sell excess solar electricity back to the grid in Leitrim?
Yes. Once your system is registered under the Microgeneration Support Scheme, your electricity supplier pays you for excess units exported to the grid under the Clean Export Guarantee (CEG). Export rates are set by individual suppliers, not the government — there is no single national rate. Rates vary by supplier and change periodically; check with your own supplier directly before using any figure in your calculations. The first €400 per year of CEG income is exempt from Income Tax, USC, and PRSI under Section 216D of the Taxes Consolidation Act 1997, extended to 31 December 2028. This exemption applies at your sole or main residence — it does not apply to export income from a property you do not live in. You need a smart meter for export to be measured — ESB Networks installs these at no cost. For full details, see the Commission for Regulation of Utilities at cru.ie.
Do I need planning permission for solar panels in Leitrim?
Most residential rooftop solar installations in Leitrim do not require planning permission. Under SI 493/2022 (Planning and Development Act 2000 Exempted Development No. 3 Regulations 2022), solar panels on a house roof are exempt subject to conditions: panels must not project more than 15cm from the roof surface, must maintain a 50cm setback from the roof edge, and wall-mounted panels are not exempt. There is no area cap on rooftop panels for houses. Ground-mounted systems have a separate 25m² area limit. Protected structures are not covered by the exemption and require planning permission under separate legislation. Leitrim County Council is the planning authority for the county. Your installer will confirm whether your property falls within the exemption.
Does the SEAI grant apply to holiday homes in Leitrim?
The SEAI Solar Electricity Grant does not require that the property is your primary residence. If a holiday home in Leitrim was built and occupied before 2021, it may qualify for the grant. SEAI's eligibility rules focus on the age and occupation history of the property, not on how it is currently used. Check with SEAI directly at seai.ie to confirm your specific property's eligibility before applying, as individual circumstances can vary.