A typical residential solar PV installation in Ireland costs between €6,000 and €18,000 before the SEAI grant. After the grant (up to €1,800), most homeowners pay €4,200–€16,200. Solar panel supply and installation also qualifies for 0% VAT (reduced from 13.5% since May 2023), saving several hundred euros more. The average payback period is 6–9 years.
Solar Panel Prices by System Size
The biggest factor in the cost of solar panels is the size of the system, measured in kilowatt-peak (kWp). Here are typical installed costs in Ireland in 2026:
| System Size | No. of Panels | Gross Cost | After SEAI Grant | Est. Annual Saving |
|---|---|---|---|---|
| 2kWp | 5–7 | €3,500–€6,000 | €2,100–€4,600 | ~€500–€700 |
| 3kWp | 8–10 | €6,000–€8,500 | €4,400–€6,900 | ~€750–€1,000 |
| 4kWp | 10–14 | €8,000–€11,000 | €6,200–€9,200 | ~€1,000–€1,300 |
| 5kWp | 14–17 | €10,000–€14,000 | €8,200–€12,200 | ~€1,200–€1,600 |
| 6kWp+ | 18+ | €13,000–€18,000 | €11,200–€16,200 | ~€1,500–€2,000+ |
Prices are indicative averages. Actual costs depend on installer, location, roof type, and specification. SEAI grant for solar PV is capped at €1,800 (€700/kWp for first 2kWp, €200/kWp for 2–4kWp).
What Is Included in the Installation Cost?
A full solar PV installation quote from a reputable installer should include:
- Solar panels (modules)
- Inverter (converts DC to AC electricity)
- Mounting frames and fixings
- DC and AC cabling
- Generation meter
- System monitoring (usually app-based)
- Installation labour
- Electrical connection and safety certification (RECI cert)
- SEAI grant application assistance
- DNO (ESB Networks) notification
Some installers quote a lower price that excludes VAT, electrical certs, or DNO connection. Always ask for a fully inclusive quote and check that the installer is SEAI-registered before agreeing to any work.
Battery Storage Cost in Ireland
Adding a battery storage system allows you to store surplus solar electricity for use in the evening, significantly increasing the amount of solar power you can self-consume. Note: the previous SEAI battery storage grant has been discontinued. However, batteries installed as part of a solar contract qualify for 0% VAT.
| Battery Capacity | Cost (Supplied & Installed) | SEAI Battery Grant |
|---|---|---|
| 5kWh | €3,000–€4,500 | None (discontinued) |
| 10kWh | €4,500–€7,000 | None (discontinued) |
| 15kWh | €6,500–€9,500 | None (discontinued) |
Factors That Affect Solar Panel Prices in Ireland
1. System Size (kWp)
The most significant cost factor. Larger systems cost more but also save more. The cost per kWp generally decreases as system size increases.
2. Panel Quality and Type
Monocrystalline panels are the most efficient and most commonly installed in Ireland. Premium brands (SunPower, LG, Panasonic) cost more but often offer better warranties and performance guarantees.
3. Roof Type and Condition
A standard pitched roof with south-facing tiles is the cheapest to work with. Flat roofs, metal roofs, or roof access issues can add €500–€2,000 to the cost. If your roof needs repair before installation, this is an additional cost.
4. Location
Labour costs vary slightly by county. Urban areas (Dublin, Cork) tend to have more competition and more competitive pricing. Rural areas may have additional travel costs factored in by some installers.
5. Inverter Type
Standard string inverters are cheapest. Microinverters or power optimisers cost more but can improve output on partially shaded roofs.
Solar Panel Payback Period in Ireland
With electricity prices in Ireland averaging over 35c/kWh — the highest in Europe according to Eurostat — the payback period for solar is:
| System Size | Net Cost After Grant | Annual Saving | Payback Period |
|---|---|---|---|
| 3kWp | ~€6,100 | ~€850 | ~7–8 years |
| 4kWp | ~€7,700 | ~€1,100 | ~7–8 years |
| 5kWp | ~€10,200 | ~€1,400 | ~7–9 years |
After payback, you benefit from essentially free electricity for the remaining lifespan of the panels (typically 25+ years).
0% VAT on Solar Panels in Ireland
Since 1 May 2023, a zero rate of VAT applies to the supply and installation of solar panels on or adjacent to private dwellings in Ireland. This rate is in effect until at least 2027. At the previous rate of 13.5%, a €10,000 installation would have carried €1,211 in VAT. That saving is now built into every installer quote you receive.
Combined with the SEAI grant of up to €1,800, Irish homeowners benefit from two significant government incentives that are automatically applied when you use an SEAI-registered installer.
How to Get the Best Solar Panel Price in Ireland
- Get multiple quotes — Prices can vary by 20–30% between installers. Always get at least 3 quotes.
- Only use SEAI-registered companies — Required to qualify for the grant, and gives you additional consumer protection.
- Compare like for like — Make sure all quotes include the same components (panel brand, inverter, monitoring, certificates).
- Ask about warranties — Good installers offer 25-year panel performance warranties and at least 5-year workmanship warranties.
- Don't choose on price alone — Check reviews, ask for references, and confirm SEAI registration.
Use our free quote comparison service to get up to 4 quotes from SEAI-registered installers in your county. It takes less than 60 seconds and there is no obligation.