Find a Cheaper Electricity Provider and Save Money in 2025!
Call our Selectra agents today for expert and trusted advice on switching electricity providers and make sure that you are getting the cheapest deal on electricity prices. Figures quoted are only available for direct debit payment.
38% Variable Discount
32% Discount
Variable Rate
Solar panel installation for a 3-bed, semi-detached house in Ireland costs on average between €6,200 - €6,600. This cost includes an SEAI grant designed to help homeowners with the costs of solar panel installation. Solar batteries cost between €1,700 - €2,400 while EV Chargers cost between €1,000 - €1,500.
Solar panels can be an expensive investment with an average cost of between €4,800 to €8,700.
This is due in part to rising wholesale costs and the high cost of electricity, but there are SEAI grants available to help with the cost of installing solar panels. This can help those interested in making savings on their energy consumption.
Here’s a quick table that provides an overview of the cost of solar panels for different size houses:
| House Size | No. of Panels | Solar System Size | Cost After Grant |
|---|---|---|---|
| Small terraced | 4 solar panels | 1.76 kWp | €4,800 |
| 2-Bed terraced | 8 solar panels | 3.5 kWp | €6,200 |
| 3-Bed Semi-Detached | 10 solar panels | 4.4 kWp | €6,600 |
| 4-Bed Detached | 12 solar panels | 5.3 kWp | €7,400 |
| 6-Bed Detached | 16 panels | 7 kWp | €8,700 |
Source: Energy Efficiency
Last Updated: May 2025
Solar panels can cost anywhere from between €5,000 to €16,000 to install. This makes them one of the cheaper renewable energy solutions for your home, less expensive than an electric car or a hybrid car.
This pricing is generally based on the rate capacity offered by the solar panels, so the higher capacity you need, the more expensive your solar panels will be.
Here’s a graph to show you how the prices increase with more capacity:
Source: Energyd
Last Updated: May 2025
A solar battery is usually an added cost on top of the cost of solar panels. Depending on the capacity, you might be looking at paying an extra €1,700 to €2,400 on top of what you pay for the installation.
Solar batteries allow you to store the energy produced by your solar panels for later use, but you can also get paid for exporting any excess energy your solar panels generate through the microgeneration scheme.
By selling your excess energy back into the national grid, you can offset some costs incolved in installing solar panels.
There are several solar panel cost calculators available online that can help you estimate the potential costs, savings, and payback period for installing solar panels in Ireland.
Here are a few options:
These calculators typically ask for information about your property, energy consumption, and location to provide a more personalised estimate.
Keep in mind that these are estimations, and the actual cost and savings can vary depending on the specific details of your installation and energy usage.
It's always recommended to get quotes from multiple certified solar panel installers for a more accurate assessment.
The SEAI solar grants scheme offers significant funding to make the cost of the solar panels more affordable. However, the grant only applies to photovoltaic solar panels, so if you want to install a different type you’ll have to pay for it yourself.
The amount that you receive for the solar panel grant depends mainly on the peak output of your new solar panel system.
This means that the amount of power that your solar panel generates at peak times will determine how much you’ll receive in the grant:
| Kilowatt Peak (kWp) | Grant Amount |
|---|---|
| 1 kWp | €700 |
| 2 kWp | €1,400 |
| 3 kWp | €1,800 |
| 4 kWp | €1,800 |
Source: Citizen Information
Last Updated: May 2025
The solar panel grant will cover both the labour and the material for the solar panels to be installed in your property.
For many of the grants, the maximum amount is lower than the average price for PV solar panels (around €4,000) so the grant is intended to foot part of the bill for the over costs.
The grant doesn't cover any solar panel repairs or the individual cost of replacement parts.
While there are DIY solar kits available, we recommended contracting a professional solar panel installation company.
Grant Amount Capped 2025
In 2025, the grant is capped at €1,800. The Government plans to reduce the grant by up to €300 every year, as it expects the cost of solar panel systems to reduce over time. It is intended that the grant will end in 2029.
Looking To Make Energy Savings With Your Home Energy Upgrades in 2025?
Our energy specialists can get you discounted rates with a 100% green energy supplier!
Call Today to Switch Energy Providers and Save On Your Energy Bills
We're currently closed but please leave us your number and we'll give you a free call as soon as we're open!
As with any investment, it takes time to earn the money back, and it can be frustrating having to wait to see the real savings from having the panels installed.
On average, whatever size solar panels, it will take around 4 to 6 years for your investment to pay off.
However, the more solar panels you invest in, the larger your return will be:
| House Size | Rated Capacity | Return on Investment | Time |
|---|---|---|---|
| 2-Bed Terraced | 3.52 kWp | 11.6% | 6 years 4 months |
| 3-Bed Semi-Detached | 4.4 kWp | 13.4% | 5 years 6 months |
| 4-Bed Detached | 5.28 kWp | 14.6% | 5 years 1 month |
| 6-Bed Detached | 7.04 kWp | 16.3% | 4 years 7 months |
Source: Purevolt
Last Updated: May 2025
The number of solar panels needed for a home can vary a lot depending on the capacity you need and how big your home is.
For example, a 2-bed terrace would need a lot less than a 6-bed terrace for example. Here’s a table that shows you the different rated capacities for each house size:
| House Size | Rated Capacity | kWh per Year |
|---|---|---|
| 2-Bed Terraced | 3.48 kW | 3,029 kWh |
| 3-Bed Semi-Detached | 4.35 kW | 3,782 kWh |
| 4-Bed Detached | 5.22 kW | 4,820 kWh |
| 6-Bed Detached | 6.96 kW | 6,036 kWh |
Source: Purevolt
Last Updated: May 2025
To find out how many solar panels you require for your home, have a look at our solar panel companies article and get a quote for your property.
Example of Solar Panel Capacity If we have a solar panel with a capacity rating of 1kW. This means that for every square metre of sun, the solar panel will generate 1000 watts.
Taking into account their manufacturing costs, their installation costs, as well as solar panel repairs, the amount you have to pay for having your own solar panels can be quite challenging
Here are some of the factors that might influence the cost your solar panels in Ireland:
So are solar panels worth the cost in Ireland? There are a lot of pros and cons surrounding solar panels.
On one side, they’re the ideal investment for today since we’re all moving towards renewable energy sources and need to keep the green transition going. They're also a great choice and alternative to getting electric cars, for instance.
South-facing roofs in Ireland maximize sunlight capture for best energy generation, with east and west producing less, while north is generally unsuitable.
Shading from any source (trees, buildings, etc.) can significantly reduce panel output, even with modern systems.
Most high-quality solar panels are designed to last for at least 25 to 30 years.
During this time, their energy production will gradually decrease with good quality panels typically degrading by about 0.5% per year. So, after 25 years, you can still expect them to operate at around 87.5% of their original capacity.
The services and products mentioned on this website may only represent a small selection of the options available to you. Selectra encourages you to carry out your own research and seek advice if necessary before making any decisions. We may receive commission from selected partner providers on sales of some products and/or services mentioned within this website. Our website is free to use, and the commission we receive does not affect our opinion or the information we provide.
Looking for Lower Energy Bills in 2025?
