Solar Panel Installation Quotes in Ireland
Compare up to 4 local solar panel installation professionals. Free, no obligation quotes.
Solar panels generate free electricity from daylight, and Ireland gets far more usable daylight than most people expect. A well-positioned system on a south-facing roof in Ireland produces enough electricity to cover 40 to 60% of a typical household's annual consumption. With electricity prices at record highs and the Clean Export Guarantee letting you sell surplus power back to the grid, the financial case for solar has never been stronger.
A typical residential solar PV system is 3 to 6 kWp (kilowatt-peak), with most Irish homes opting for a 4kWp setup of around 10 panels. This size strikes the best balance between output, roof space, and cost. Battery storage is increasingly popular as an add-on, allowing you to store daytime generation for evening use rather than exporting it at a lower rate.
SEAI offers grants of up to €2,400 towards solar PV installation on existing homes. The maths works out well: a 4kWp system costing €6,000, minus the €2,100 grant, leaves a net cost of around €3,900. With annual savings of €600 to €900 on electricity, the payback period is typically 4 to 6 years, after which you have free electricity for the remaining 20+ year lifespan of the panels.
Installation quality matters more than most homeowners realise. Roof orientation, panel angle, shading from trees or neighbouring buildings, and the quality of the inverter all affect output. Comparing quotes from multiple SEAI-registered installers ensures you get a system that is properly designed for your specific roof and usage patterns.
SEAI Grants May Be Available
Some solar panel installation work may qualify for SEAI grants. Visit HomeEnergyGuide.ie to check eligibility and amounts.
SEAI Grants May Apply
Some solar panel installation work qualifies for SEAI grants of up to €8,000 or more. Check eligibility and current grant amounts on our energy guide.
Check SEAI Grants on HomeEnergyGuide.ieHow Much Does Solar Panel Installation Cost in Ireland?
Typical pricing for solar panel installation services in Ireland (2026):
| Service | Typical Cost | Notes |
|---|---|---|
| 2kWp solar PV system | €3,500 | €5,000 | Panel brand, roof type |
| 4kWp solar PV system | €5,000 | €8,000 | Panel brand, inverter type |
| Battery storage (add-on) | €3,000 | €6,000 | Capacity, brand |
Solar panel costs depend on system size (number of panels and inverter capacity), panel brand, whether you add battery storage, and the complexity of your roof (slate, tile, or flat roof, with slate requiring more careful mounting). Battery storage adds €3,000 to €6,000 depending on capacity, with 5kWh to 10kWh being the most common residential sizes. Dublin installation rates are typically 5-10% higher than the national average, reflecting higher labour costs.
What to Expect: The Solar Panel Installation Process
- A registered installer surveys your roof, checking orientation, angle, structural condition, shading, and available space. They also assess your electricity usage patterns to recommend the right system size.
- You receive a detailed quote specifying panel count, brand, inverter type, estimated annual output (kWh), expected savings, payback period, and SEAI grant eligibility.
- The SEAI grant application is submitted. You must have approval before installation begins.
- Installation takes 1 to 2 days for a standard rooftop system. Panels are mounted on rails fixed to your roof rafters, the inverter is installed (usually in your attic or utility room), and the system is wired to your consumer unit.
- Your installer registers you with your electricity supplier for the Clean Export Guarantee, enabling payment for surplus electricity exported to the grid.
- ESB Networks is notified of the installation (required for all grid-connected systems). Your installer handles this paperwork.
Common Mistakes to Avoid
- Not checking roof condition before installing panels. Panels stay on your roof for 25+ years. If your roof needs repairs or re-slating in the next 5 to 10 years, do that first. Removing and refitting panels later is expensive.
- Ignoring shading. Even partial shading from a chimney, tree, or neighbouring building can significantly reduce output. Micro-inverters or optimisers can mitigate this, but your installer needs to assess shading accurately.
- Oversizing the system for your consumption. A massive system on a house that uses little electricity simply exports most of the output at a lower rate. Size the system to match your daytime usage for the best return.
- Not registering for the Clean Export Guarantee. If your installer does not register you, you miss out on payment for exported electricity. Confirm this is included in their service.
- Assuming all panels are the same. Panel efficiency, warranty terms, and degradation rates vary by brand. A slightly more expensive panel that produces 5% more electricity per square metre and has a better warranty may save you more over 25 years.
What to Look for When Hiring a Solar Panel Installation Professional
Your installer must be SEAI-registered and hold Safe Electric certification (the national register for qualified electricians). Verify both at seai.ie and safeelectric.ie. The installer should provide a detailed site survey before quoting, not just a phone estimate. Ask for evidence of manufacturer training for the specific panel and inverter brands they propose. Check that they carry public liability insurance and provide a minimum 10-year workmanship warranty alongside the manufacturer's panel warranty (typically 25 years for output). Be wary of installers who push the largest system possible regardless of your usage, who cannot explain the inverter choice, or who do not mention the Clean Export Guarantee registration.
Questions to Ask Your Solar Panel Installation Professional
- What system size do you recommend for my usage and roof? A system that is too large for your consumption exports most of its output at a lower rate. A system sized to match your daytime usage gives the best return on investment.
- What annual output (kWh) do you estimate for my roof? Output depends on roof orientation, angle, and shading. A south-facing roof at 30-35 degrees produces the most. East or west-facing roofs produce 15-20% less. North-facing roofs are generally not viable.
- Do you recommend battery storage for my usage pattern? If you are out during the day and use most electricity in the evening, a battery lets you store and use your own solar power instead of exporting cheaply and buying back at full price.
- Will you register me for the Clean Export Guarantee? Without registration, you cannot get paid for surplus electricity exported to the grid. Your installer should handle this as part of the installation.
- What warranties are included? You should expect a 25-year output guarantee on panels, 5-12 years on the inverter, and a minimum 10-year workmanship warranty from the installer.
- How will you fix the panels to my roof without causing leaks? Panels are mounted on rails bolted through roof tiles into rafters. The bolt penetrations must be sealed properly. Ask what flashing or sealing method they use.
Frequently Asked Questions
A 4kWp residential system (approximately 10 panels) costs €5,000 to €8,000 before the SEAI grant. After the grant of approximately €2,100, you pay €3,000 to €6,000 net. A 6kWp system for larger homes costs €7,000 to €10,000 before grant. Adding a 5kWh battery storage system adds €3,000 to €4,500. Prices vary by panel brand, inverter quality, and roof complexity.
Yes. Solar panels work with daylight, not direct sunshine. Ireland receives between 1,100 and 1,600 hours of sunshine per year depending on location, and panels produce electricity even on overcast days (at reduced output). A 4kWp system in Ireland typically generates 3,400 to 4,000 kWh per year, which is 40 to 60% of an average household's consumption. Germany, which gets similar sunlight levels, is the largest solar market in Europe.
A 4kWp system saves most households €600 to €900 per year on electricity bills. The exact amount depends on how much of the generated electricity you use directly (self-consumption) versus export. Electricity you use yourself saves you the full retail rate (approximately 35-40c per kWh). Electricity you export earns a lower rate (approximately 15-24c per kWh depending on your supplier). Maximising self-consumption, by running appliances during the day or adding battery storage, improves your return.
Yes. Under the Clean Export Guarantee (CEG), all electricity suppliers with more than a certain number of customers must offer a payment for exported solar electricity. Rates vary by supplier but typically range from 15 to 24 cent per kWh. Your installer registers you with your supplier as part of the installation process. The income is currently tax-free up to €200 per year for domestic households.
Rooftop solar panels on houses are generally exempt from planning permission in Ireland, provided they do not extend more than 15cm above the roof surface and do not cover more than 50% of the total roof area. There are exceptions for protected structures, buildings in Architectural Conservation Areas, and some apartment developments. Ground-mounted systems may require planning permission depending on size and location. Your installer should confirm exemption status.
For a standard 4kWp system after the SEAI grant, the typical payback period is 4 to 6 years, depending on your electricity usage pattern and how much you self-consume versus export. After payback, the system generates essentially free electricity for its remaining lifespan of 20 to 25+ years. Adding battery storage extends the payback period slightly (by 1-2 years) but increases total lifetime savings.
Solar panels are designed to last 25 to 30 years and come with manufacturer output guarantees (typically 80% of original output at 25 years). The inverter has a shorter lifespan of 10 to 15 years and will likely need replacing once during the system's life (cost approximately €1,000 to €1,500). Panels require minimal maintenance: an annual visual inspection and occasional cleaning if they get heavily soiled.
The ideal roof faces south at an angle of 30 to 40 degrees, with no shading from trees, chimneys, or neighbouring buildings. South-east and south-west facing roofs work well, losing only 5-10% compared to due south. East and west-facing roofs lose 15-20% but are still viable. North-facing roofs are generally not recommended. Your roof must be structurally sound and in good condition, as panels will be in place for 25+ years.
Yes, and this is an excellent combination. Solar panels generate free electricity during the day, which can power your heat pump. If you run the heat pump during peak solar hours, you are effectively heating your home for free. Adding a battery further improves this, as it stores excess solar for evening heating. Many homeowners who install both as part of a retrofit see heating costs drop by 60-80%.
Solar Panel Installation Quotes by County
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