Solar Panels for Your Home
Home solar panel installation in Ireland. SEAI grant up to €1,800 available. Generate 3,400–4,200 kWh/year from a 4kW system. Professional installation by Lumen Solar, Athlone.
Key Features
- SEAI grant up to €1,800 — confirmed for 2026
- 4kW system generates 3,400–4,200 kWh/year
- Payback in 5–8 years with battery
- BER upgrade — typically C to B2
- 25-year performance warranty
- Export surplus and earn 18.5–25c/kWh
Cut Your Electricity Bill by 50–80%
SEAI grant up to €1,800 — generate your own power for 25+ years
€1,800
max SEAI grant
4,200
kWh/year from 4kW
5–8yr
payback with battery
25yr
performance warranty
Home Solar in Ireland — The Real Numbers
A 4kW solar PV system on a typical Irish home in the Midlands generates 3,400–4,200 kWh per year. At today’s electricity price of approximately 42c/kWh, that’s €1,428–€1,764 worth of electricity — every single year, for 25+ years.
After the SEAI grant and with a battery, most homeowners see a full payback in 5–8 years. After that, it’s free electricity for the remaining 17–20 years of the system’s life. The maths isn’t even close.
The SEAI solar PV grant has been confirmed unchanged for 2026 by Minister O’Brien.
Up to €1,800 off your installation cost. Apply before works start — you have 8 months to complete once approved.
SEAI Solar PV Grant 2026 — Full Breakdown
| System Size | Grant Rate | Total Grant | Notes |
|---|---|---|---|
| First 2kWp | €700 per kWp | €1,400 | Higher rate for first 2kWp |
| 2kWp to 4kWp | €200 per kWp | €400 | Reduced rate above 2kWp |
| 4kWp system (max domestic) | — | €1,800 | Maximum available grant |
Grant Eligibility — The Rules
Home must be built and occupied before 2021
Must have an MPRN (Meter Point Reference Number)
Apply to SEAI before works start
8 months to complete from approval
Not available if solar was previously grant-aided at that MPRN
New builds and homes built after 2021 do not qualify
What Does Home Solar Cost in 2026?
Typical installed costs for a domestic solar PV system in Ireland, including panels, inverter, mounting, and all electrical work.
| Item | 2kW System | 4kW System | 6kW System |
|---|---|---|---|
| Panels (monocrystalline) | 5 panels | 10 panels | 15 panels |
| Roof area needed | ~8m² | ~15m² | ~23m² |
| Annual generation | 1,700–2,100 kWh | 3,400–4,200 kWh | 5,100–6,300 kWh |
| Install cost (before grant) | €3,500–€5,000 | €6,000–€9,000 | €8,500–€12,000 |
| SEAI grant | €1,400 | €1,800 | €1,800 |
| Net cost after grant | €2,100–€3,600 | €4,200–€7,200 | €6,700–€10,200 |
| Payback (with battery) | 4–7 years | 5–8 years | 6–9 years |
| Payback (without battery) | 6–9 years | 7–10 years | 8–11 years |
*All prices include VAT at 0% (solar PV qualifies for zero-rate VAT in Ireland). Costs vary by roof type, access, and equipment choice.
Monthly Solar Generation — What to Expect from a 4kW System
Real-world approximate monthly output for a 4kW system in the Irish Midlands, south-facing, 30–35° pitch.
| Month | Generation (kWh) | Value at 42c/kWh | Daylight Hours |
|---|---|---|---|
| January | 100–150 | €42–€63 | 7–8 hrs |
| February | 150–200 | €63–€84 | 9–10 hrs |
| March | 250–300 | €105–€126 | 11–12 hrs |
| April | 320–380 | €134–€160 | 13–14 hrs |
| May | 400–460 | €168–€193 | 15–16 hrs |
| June | 420–480 | €176–€202 | 16–17 hrs |
| July | 400–460 | €168–€193 | 15–16 hrs |
| August | 360–420 | €151–€176 | 14–15 hrs |
| September | 280–340 | €118–€143 | 12–13 hrs |
| October | 200–250 | €84–€105 | 10–11 hrs |
| November | 130–160 | €55–€67 | 8–9 hrs |
| December | 80–120 | €34–€50 | 7 hrs |
| Annual Total | 3,090–3,720 kWh | €1,298–€1,562 | — |
*Actual output varies with weather, orientation, and shading. Good years hit the upper range; cloudy years the lower. Over 25 years it averages out.
Self-Consumption — The Key to Maximum Savings
30–40%
Without battery
70–80%
With battery
42c
Saved per kWh used
2x
Savings boost with battery
Every kWh you use yourself saves you 42c. Every kWh you export earns you 18.5–25c. Use first, export the rest.
Clean Export Guarantee (CEG) — What You Earn for Surplus
Under the Microgeneration Support Scheme, you earn money for every kWh you export back to the grid. The first €200/year is tax-free; above that, income tax applies.
| Electricity Supplier | Export Rate (per kWh) | Annual Export (est. 2,000kWh) | Notes |
|---|---|---|---|
| Pinergy | 25c/kWh | €500 | Best rate currently available |
| SSE Airtricity | 19.5c/kWh | €390 | Established provider |
| Energia | 18.5c/kWh | €370 | Large provider, reliable |
Tax note: The first €200 of microgeneration income per year is tax-free. Above that, it’s treated as income and subject to income tax. For most domestic setups, annual export income stays within or close to the tax-free threshold.
Does Your Roof Suit Solar?
Ideal Conditions
- • Orientation: South, south-west, or south-east facing
- • Pitch: 30–45° (most Irish roofs are ideal)
- • Clear area: Minimum 15m² for a 4kW system
- • Shading: No chimneys, trees, or buildings casting shadows
- • Roof condition: Sound structure, good tiles/slates
Non-Ideal But Still Works
- • East/west facing: ~85% of ideal output (still worthwhile)
- • Flat roof: Ballasted mounting — no drilling needed
- • Partial shading: Microinverters or optimisers solve this
- • North-facing: Not recommended — poor economics
- • Old roof: Consider re-roofing first (cheaper when scaffold is up)
Panel & Inverter Technology — What We Install
Monocrystalline PERC
Standard — what most systems use
- • 20–22% efficiency
- • Excellent value for money
- • 25-year performance warranty
- • Proven, reliable technology
N-type TOPCon
Premium — higher output per panel
- • 22–24% efficiency
- • Lower degradation rate
- • Better low-light performance
- • Premium pricing
Bifacial Panels
Growing — captures reflected light
- • Generates from both sides
- • Best on flat/light-coloured roofs
- • 5–15% extra output
- • Ideal for ground mounts
Inverter Types
String Inverter
Standard for most installs. One unit, wall-mounted, converts DC to AC. Simple, reliable, cost-effective.
Hybrid Inverter ★
Our recommendation. Battery-ready from day one. Add storage now or later without replacing equipment.
Microinverters
One per panel. Essential for shaded roofs — one shaded panel doesn’t drag down the rest. Higher cost, excellent performance.
⚠️ Shading — The Performance Killer
With a standard string inverter, one shaded cell can reduce the output of an entire string of panels by 70%+. Solar cells in a string are like Christmas lights wired in series — one weak link brings the whole chain down.
The Problem
Chimneys, trees, satellite dishes, even a single dirty panel can cause disproportionate losses with string inverters.
The Solution
Microinverters or DC optimisers — each panel operates independently. Shading on one doesn’t affect the rest.
BER Improvement — Boost Your Home’s Energy Rating
Solar panels typically improve a home’s BER by 1–2 grades. A C-rated home commonly moves to B2 or better with a 4kW system.
C3 → B2
Typical improvement
+€20k
Added property value (est.)
Faster
Sale times for B-rated homes
Lower
Mortgage rates on green homes
Planning Permission
Domestic solar panels are generally exempt from planning permission in Ireland (exempted development under planning regulations). There are conditions: panels must not project more than 15cm above the roof surface, total panel area must not exceed 12m² or 50% of total roof area (whichever is less) — though these limits have been relaxed. For most typical domestic installs, no planning permission is required. We confirm this during our site survey.
Monitor Every Watt — From Your Phone
Every system we install includes real-time monitoring via a smartphone app and web dashboard. See exactly what your panels are generating, what you’re using, and what you’re exporting — live.
- Real-time generation — see output second by second
- Daily/weekly/monthly reports — track your savings
- Export tracking — know what you’re earning
- Fault alerts — instant notification if something’s wrong
- Degradation: panels lose approximately 0.5% per year — your monitoring confirms this
How Home Solar Installation Works
1. Free Survey
We assess your roof, shading, electrical setup, and usage. You get a detailed proposal within 48 hours.
2. SEAI Application
We help you apply for your SEAI grant. No works start until approval is received.
3. Installation
Typically 1–2 days for a domestic system. Minimal disruption. We clean up after ourselves.
4. Generating
System commissioned, monitoring set up, ESB Networks notified for microgeneration. You’re live.
Frequently Asked Questions
How much will I save on my electricity bill?
A 4kW system generates €1,428–€1,764 worth of electricity per year at 42c/kWh. Without a battery, you’ll use 30–40% directly (€430–€706 saved). With a battery, that jumps to 70–80% (€1,000–€1,411 saved), plus you earn export income on the rest.
Do solar panels work in Ireland’s climate?
Yes. Solar panels work on daylight, not direct sunshine. Germany — which gets similar or less sunlight than Ireland — is one of the world’s largest solar markets. Ireland gets approximately 1,000–1,100 kWh/m²/year of solar irradiance — plenty for effective solar generation.
Do I need planning permission for solar panels?
Generally no. Domestic solar panels are exempted development in Ireland. Panels must not project more than 15cm above the roof and total area limits apply, but the vast majority of domestic installs require no planning permission. We confirm this during our survey.
Should I get a battery with my solar panels?
If your budget allows, yes. A battery doubles your self-consumption from ~35% to ~75%, shortens payback by 2–3 years, and gives you backup power during outages. At a minimum, get a hybrid inverter so you can add a battery later without replacing equipment.
What happens to my solar panels at night?
They stop generating. At night, your home draws from the grid (or from your battery if you have one). This is why a battery is so valuable — it stores daytime solar for evening and night use. Without a battery, you use the grid at night at the standard rate.
How long do solar panels last?
25–30 years minimum. Panels degrade at approximately 0.5% per year — after 25 years, they’re still producing around 87% of their original output. All quality panels come with a 25-year performance warranty guaranteeing at least 80% output.
My roof faces east/west — can I still get solar?
Absolutely. East/west facing roofs produce approximately 85% of what a south-facing roof generates. Many homes have panels split across east and west roof faces — this actually spreads generation more evenly across the day, which can improve self-consumption.
What about flat roofs?
Flat roofs work well. We use ballasted mounting systems — heavy frames that hold panels at 10–15° tilt without drilling through the roof membrane. No structural penetration means no risk of leaks. Common on extensions, garages, and dormer roofs.
Can I get solar if I already have an immersion or heat pump?
Yes — and they’re a great combination. A solar diverter sends excess solar to your immersion heater (free hot water). If you have a heat pump, your solar panels can power it during the day, slashing heating costs. Solar + heat pump is the most efficient combination for Irish homes.
What’s the difference between the SEAI grant and the commercial NDMG?
The domestic SEAI grant (up to €1,800) is for homeowners only. The Non-Domestic Microgen Grant (NDMG) is for businesses, farms, schools, and community buildings — it covers larger systems up to 1000kWp with grants up to €162,600. Different application process and eligibility.
Ready to Start Generating Your Own Electricity?
Free site survey. SEAI grant up to €1,800. Typical payback 5–8 years.
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