How to Get Solar Panels in Ireland: A Beginner's Step-by-Step Guide
Rising electricity prices and bigger SEAI grants have made solar panels a mainstream home upgrade in Ireland. Ireland has some of the highest electricity prices in Europe, so every unit your roof makes is worth a lot, and with the grant and 0% VAT on panels most homes get their money back in 5–8 years. This guide is for first-timers: what to check before you ask for a quote, how to compare installers, and what to do once the panels are on the roof.
Quick Answer
Getting solar panels in Ireland takes three stages. First, research: check your annual electricity use, whether your roof suits solar, and what size system you need. A system of at least 4 kWp qualifies for the full €1,800 SEAI grant, plus €600 for a battery of 5 kWh or more, if your home was built and occupied before 2025. Second, get at least three quotes with site visits and have the grant approved before work starts. Third, once installed, confirm the NC6 form went to ESB Networks, register for export payments and switch to a tariff with a cheap night rate. Payback is 5–8 years for most homes.
Is solar right for your home?
Solar pays back best for homes that use a lot of electricity, especially with a heat pump or an electric car, and bigger systems usually pay back faster than small ones because the fixed costs (scaffolding, inverter, labour) are spread over more panels. Panels also improve your BER, which can add to the value of your home, and cut how much fossil-fuel electricity you buy.
A typical 10-panel, 4.4 kWp system costs €6,500–€7,200 after the grant. See solar panel costs for every size and are solar panels worth it for the full case for and against.
The setup most owners end up with
- PanelsAs many as your roofs take, ideally sized up front
- BatterySized to your evening and overnight use
- TariffA smart or EV plan with a cheap night rate
- Hot waterAn immersion timer or diverter to use spare solar
Each part is covered below. The tariff matters as much as the hardware: without a cheap night rate, a battery earns far less.
Step 1: Do your research
Know how much electricity you use
Add up the kWh on a year of bills. The CRU's typical Irish home uses about 4,200 kWh a year. If you have a smart meter, download your half-hourly readings file from your ESB Networks online account and upload it to our electricity price comparison tool. It shows when in the day you use power, then runs solar panels and a battery against that real usage to estimate your new bill, how much solar you would use yourself and the payback. The file is read in your browser and never uploaded.
Think about how your usage will change
A growing family, teenagers, working from home, a heat pump or an electric car all push usage up. An EV is mostly charged from the grid overnight on a cheap EV rate, so leave it out of your panel and battery sums, but let it decide your tariff. Heating water can be up to a third of a home's energy use, so how you heat it matters too.
Check your roof (or garden)
South-facing roofs produce the most: a 4.4 kWp system makes about 3,900 kWh a year in Ireland, roughly 890 kWh for every kWp of panels. East and west roofs make around 15 to 20% less, but spreading panels across both gives a longer, flatter output through the day. North-facing roofs are rarely worth it. If you have space in a garden or field, ground-mounted panels can face due south at the ideal tilt. Free sun-path apps show where shadows from trees, chimneys and neighbouring houses fall across the year.
Size the system for the full grant
The SEAI solar grant is €700 per kWp for the first 2 kWp and €200 per kWp for the next 2, so it tops out at €1,800 at 4 kWp. With today's 440 to 470W panels that is 9 or 10 panels. The home must have been built and occupied before 2025. See how many solar panels you need and the solar calculator for your own figures.
Many owners advise fitting as many panels as your roofs will take in one go, up to around 20 (9.7 kWp at the top of our price table is 22 panels). Each extra panel is cheap once the scaffolding is up, and adding panels later means matching a model that may no longer be made.
Decide on a battery
Most installers now recommend a battery, and prices have fallen. A battery stores spare daytime solar for the evening and, on a smart tariff, charges from the grid at the cheap night rate in winter. Size it to your evening and overnight use, not your total daily use: most Irish homes land on 5 to 10 kWh. A battery of 5 kWh or more gets a €600 SEAI grant. Fitted with the panels, a battery pays back in about 7–8 years; added later it takes 13–21 years. See what size battery and solar battery prices.
Hot water: timer or diverter
A diverter sends spare solar to your immersion instead of exporting it. With a battery and a cheap night rate, a smart immersion timer (around €100) that heats water on the night rate is often the better buy. Our solar diverter guide compares the two.
Power cuts, EV chargers and shading
- Backup power: a standard system switches off in a power cut. If you live rurally, work from home, rely on medical equipment or get frequent outages, ask about a backup gateway or changeover switch (see battery backup for power cuts). These have become far more popular since Storm Éowyn and usually go with a bigger battery.
- EV charger: solar and electric cars work well together. Fitting a charger at the same time saves a second call-out, and SEAI gives a separate €300 home charger grant. See solar EV charging.
- Shading: if part of your roof is shaded, read about optimisers and microinverters, which stop one shaded panel dragging down the rest.
Step 2: Get quotes and choose an installer
Get at least three quotes, and insist on a site visit for each. Local installers with a long track record are usually the safest choice. Ask who will actually do the work, because some firms pass jobs to subcontractors. Experience and reputation matter more than the lowest price. Our installer comparison guide covers what to check, and you can browse installers by county.
Understand the inverter
Quotes will differ most on the inverter, the “brains” of the system. Some brands only work with their own batteries (for example Sigenergy and Huawei), which can cost more. Others such as Solis, FoxESS and Growatt work with a wider range of batteries, so you have more choice now and later. See the inverter comparison and battery brands.
Ask for three prices
- Panels only, no battery
- Panels with a battery fitted at the same time
- Panels now, with a battery added later
This shows you what the battery really costs and whether the inverter is ready for one. Owner groups on Facebook and Reddit are a good place to sanity-check quotes before you sign.
Check the terms
| Question | What to look for |
|---|---|
| Is the price net of the grant? | Best if the installer claims the grant and you pay the net price |
| Is the BER included? | SEAI needs a post-works BER to pay the grant; it should be in the price |
| What deposit? | Deposits of up to 50% are common; know what you get back if things go wrong |
| Where will the inverter and battery go? | Attics are hard to reach and get hot and cold; sheds and outside walls get cold in winter, which hurts battery performance |
Once you have agreed terms, apply for the grant (or have your installer do it) and wait for SEAI's approval before any work starts: work done before approval does not qualify. See how to apply for the SEAI grant. Then agree the installation date.
Step 3: After installation
Make sure the NC6 was sent
Your installer should send an NC6 form to ESB Networks. You are only paid for exports from the date ESB processes it, and you need a smart meter, so ask for the date it was sent.
Register for export payments
Check with your supplier that you are set up for the Clean Export Guarantee. Standard export rates run from 15.20 c/kWh to 19.50 c/kWh (checked 4 November 2026). The first €400 a year of export income is tax-free for each person named on the electricity bill, and Budget 2027 announced a rise to €600. Adding a second name to the bill can double the tax-free amount. See export rates by supplier.
Pick the right tariff
This is where many new owners leave money on the table. With a battery, charging it overnight on a cheap night or EV rate and using that power at the dearer day and peak times is a big part of the saving, especially in winter when the panels make little. Compare plans with the price comparison tool, or read tariffs for home batteries and EV tariffs.
Watch your data
Your inverter app shows what the panels make, what the house uses and what goes to the grid. You will learn a lot in the first couple of weeks, and most owners tweak their battery and immersion settings as the seasons change. If output looks low, see solar panels not generating.
Beginner's checklist
- Find your annual usage in kWh on your bills
- Download your smart meter file from ESB Networks
- Work out which way your roof faces and whether anything shades it
- Aim for at least 4 kWp (about 9 to 10 panels) to get the full €1,800 grant
- Decide on a battery and, if you get power cuts, a backup gateway
- Get at least three quotes, each with a site visit
- Ask for prices without a battery, with one, and with one added later
- Check the quote is net of the grant and includes the BER
- Agree where the inverter and battery will go
- Have the SEAI grant approved before any work starts
- Confirm your installer has sent the NC6 form
- Register for export payments with your supplier
- Pick a tariff that suits a battery
Getting solar panels: FAQ
What is the first step to getting solar panels in Ireland?
Find out how much electricity you use. Add up the kWh on a year of bills, or download your smart meter file from ESB Networks. That figure, plus which way your roof faces, decides what size system and battery make sense.
How many solar panels do I need for the full SEAI grant?
The grant reaches its €1,800 maximum at 4 kWp, which is 9 or 10 panels at 440 to 470W each. The home must have been built and occupied before 2025.
Is there a grant for a solar battery?
Yes. SEAI pays €600 for a battery of 5 kWh or more in a home built and occupied before 2025. It can be claimed with the solar panel grant or on its own.
How long do solar panels take to pay back in Ireland?
5–8 years for most homes after the SEAI grant. A typical 4.4 kWp system costs €6,500–€7,200 after the €1,800 grant. Higher usage, a battery used with a night-rate tariff and a south-facing roof all shorten it.
Can I start the installation before the SEAI grant is approved?
No. Work done before SEAI approves your grant does not qualify. Apply, wait for approval, then book the installation.
Do I need to tell ESB Networks about my solar panels?
Yes. Your installer sends an NC6 form to ESB Networks. You are only paid for exported electricity from the date ESB processes it, and you need a smart meter.
Is export income from solar panels taxed?
The first €400 a year is tax-free for each person named on the electricity bill. Budget 2027 announced a rise to €600. Income above the limit is taxed at your marginal rate.
Should I get a battery straight away or add one later?
Fitting it with the panels is cheaper: no second call-out and the inverter is already suited to it. On our figures a battery fitted with the panels pays back in about 7–8 years, against 13–21 years as a later add-on. Ask installers to price both so you can compare.
Related Guides
How Many Solar Panels Do I Need?
System sizing by home size, roof space guide, and panel count calculator.
Compare Top Installers
Side-by-side comparison of top rated solar installers by reviews and ratings.
SEAI Solar Grants
Grants up to €1,800, eligibility, and how to apply.
The NC6 Form
Registering solar with ESB Networks: who submits it, how long it takes, NC6 vs NC7.
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy
John Rooney is the editor of Solar Info and has been covering the Irish solar energy market since 2023. He fact-checks all content against official SEAI data and maintains relationships with SEAI-registered installers across Ireland.
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