The cost of solar panels in Ireland has reduced significantly in recent years. A solar PV system typically costs between €4,000 and €16,000, depending on its quality and how many panels are installed.

The cost of installing solar panels has never been more attractive to homeowners, and with financial incentives such as SEAI grants and low interest loans, many are now actively considering solar PV panels in Ireland.

But how much will solar panels cost for your home? Let’s find out!

consider installing solar panels as a cost-saving measure

The Average Price of Solar Panels

The cost of solar PV panels in Ireland will depend on different factors such as your energy needs: i.e. how much electricity you wish to generate through your solar power system.

Most homeowners in Ireland will pay less than €10,000 for their array of solar panels, and see a return on their investment in well under 10 years!

SEAI solar panel grants are also available for most homeowners, which can significantly reduce costs.

cost of solar PV panels in Ireland will depend on many factors

How Much Solar Panels Cost in Ireland

One simple way you can estimate the cost of solar panels in Ireland in 2024 is to multiply each kW by €1,200 – €1,600. This means that a 5kW high quality solar panel system could cost somewhere between €6,000 and €8,000.

This is far from a golden rule, of course, but it is a simple and straightforward way of estimating the cost of the solar panels and installation, after the SEAI’s grant of up to €2,100 has been factored in.

Type of house Number of panels Solar system size Estimated cost
2 bed terraced 8 solar panels ~3.5kWp €5,500 – €5,900
3 bed semi-detached 10 solar panels ~4.4kWp €5,900 – €6,300
4 bed detached 12 solar panels ~5.3kWp €6,400 – €6,700
6 bed detached 16 solar panels ~7kWp €7,400- €7,700

These estimates can be affected by a number of factors which can influence the overall costs, including the power output of the solar panels. The figures in the table above are based on high quality LONGi 435W solar panels.

Different installation rates can also affect the overall cost, and the only way to get a truly accurate picture of costs is to get a quote from a trusted solar panel installer.

Solar Panels’ Cost, Size and Payback Period

Another thing that you must bear in mind before deciding on the right solar system size for you is your annual electricity consumption and the amount of electricity that you want your solar PV system to produce. 

Let’s look at the examples above in more detail, along with the amount of electricity they could generate each year, their size in square meters (m2), and their payback period. We also have a helpful and easy to use electricity output calculator where you can see how many panels you will need for your energy needs.

Solar Panels for a Two Bedroom Terraced House

  • Homeowners in a terraced house, with adequate space for an array of eight 435W solar PV panels, could expect to pay around €5,650 after the SEAI grant of €1,975 is factored in.

  • The size of an array of 8 panels would be around 3.5kWp and take up 17m2 of roof space.
  • A 3.5kWp solar panel system could generate over 3,000 kWh every year for over 25 years on south-facing roofs, paying for themselves in just over 6 years.
3.5 kWp Solar Panel System (8 Panels) – Payback Overview

Solar Panels for a 3 Bedroom Semi-detached House

  • For a typical three bedroom semi-detached house, a 10 panel solar system might be ideal, which could cost around €6,000 after the maximum grant of €2,100 is deducted.
  • A high quality 10 panel solar system of ~4.4kWp would require around 20m2 of roof space.
  • This could generate up to 3,800 kWh per year on south-facing roofs, meaning they have a payback period of under 6 years.
4 kWp Solar Panel System (10 Panels) – Payback Overview

Solar Panels for a 4 Bedroom Detached House

  • A detached house with four bedrooms, such as a dormer bungalow or a 2-storey house, could avail of a solar system consisting of 12 individual solar panels, with potential installation costs of between €6,500 and €7,000 post grant.
  • This 5.3kWp solar panel system of 12 panels would take up around 25m2 of roof space.
  • A PV system of this size on a south facing roof could potentially generate 4,800 kWh each year, with a payback period of under six years.

5 kWp Solar Panel System (12 Panels) – Payback Overview

Solar Panels for a 5+ Bed Detached House

  • Slightly larger houses with five or six bedrooms might have more roof space for more panels. A system of 16 solar panels for a stand-alone house may cost between €7,250 and €7,650.
  • This 7Wp solar panel system of 17 panels of 435kWp would require just under 35m2 of roof space.

  • A PV system of this size on a south facing rood could generate 6,000 kWh every year, with a rapid payback period of under five years.
7 kWp Solar Panel System (16 Panels) – Payback Overview

How much is a solar battery in Ireland?

Adding a standard-sized solar storage battery would cost around €2,350 to €2,850 more, including a hybrid inverter which is necessary for the battery. Solar batteries store excess electricity generated by solar panels for use later at a different time. 

Whether Lithium-Ion or Lead-Acid, solar storage batteries can store a significant amount of electricity, meaning that they make solar PV systems even more energy efficient. Solar batteries essentially ensure that the electricity generated by a solar PV system doesn’t go to waste. Find out more here on our page dedicated to solar batteries in Ireland.

excess electricity is diverted to your battery to charge it to capacity

Get a Quote for Rooftop Solar

Take our 90-second online assessment and we’ll determine if your home is well suited to solar. It only takes 90 seconds and it’s 100% cost and commitment free.

What are the different types of solar panels?

Solar PV converts the sun’s energy into electricity, which can be used in your home.

Solar thermals use solar radiation to heat water, which can also save you money on your electricity bills. These solar panels will meet about 50 to 60% of a household’s annual hot water usage.

For the vast majority of homeowners looking to install a solar energy system in Ireland, they will opt for a PV solar panel system.

Solar PV Panels or Solar Thermal

The Three Categories of PV Solar Panels

  • Monocrystalline panels are recognisable for their intense dark colour and trimmed corners. They can be up to 25% more efficient than other models. Monocrystalline panels are also more durable – they can last up to 25 years.

  • Polycrystalline or multicrystalline panels are placed in the mid-price range, and have a dark blue colour. They are a cheaper option, but also less effective than monocrystalline panels.

  • Thin layer models are different to the others as they are not made from individual cells, but a custom-cut sheet. They are simpler, which explains their lower price. They are very flexible and adaptable, and are becoming increasingly popular in homes.

Grants for Solar Panels in Ireland

The Sustainable Energy Authority of Ireland provides grants of up to €2,100 for those who wish to install solar panels.

These grants are available to all homeowners, including private landlords, where the homes were built and occupied prior to 2021.

For the vast majority of people, who will opt for a photovoltaic solar panel system over a thermal system, the SEAI provides grants of up to €2,100.

These grants reduce how much you will have to pay, so take this into consideration in your initial calculations of how much solar panels cost.

To find out more about the grants that are available for solar PV in Ireland, check out our extensive guide to solar panel grants here.

Grants available for solar panels

What components are involved in a Solar Power system?

There are a few different parts that will make up your solar PV system, including the panels themselves, an inverter, and a battery bank – which is optional.

Solar Panels

These are the PV panels made up of cells which contain semiconductor materials such as silicon. Solar power works when the sun’s rays interact with electrons in the silicon, creating DC electricity.

Solar Inverter

Solar inverters are a device which converts this direct current electricity into accelerating current (AC) electricity which can can be used in homes and businesses.

Solar Battery

Solar batteries can store excess electricity which can then be utilised at night, or in winter when there is less sunlight. Batteries are optional, and can be included or left out depending on your energy needs.

Are Solar Panels Worth the Investment?

Installing solar panels is a long-term investment and the initial costs shouldn’t be viewed in isolation.

And as well as saving money on your energy costs, having a solar PV system will increase the price of your property and improve its BER energy rating.

Installing even 2 kW of panels will be advantageous.

Find out how much money you can save by taking our FREE online assessment today.

The Benefits of Solar Power

It is no secret that solar panels save money on energy bills, but there are a number of other benefits of installing solar panels that shouldn’t be overlooked.

Solar panels are a renewable energy source, which will help offset your carbon footprint. By harnessing power generated by our nearest star, you are reducing your reliance on fossil fuels.

While the initial investment may seem expensive, there are little to no recurring costs associated with solar panels. This means that once your PV system is fitted, you can sit back and watch the savings with minimal effort.

Solar panels will also increase the BER energy rating of your home. A and B rated dwellings used 42 kWh of electricity per square metre in Ireland in 2021, compared with 79 kWh per square metre for D and for E. For F and G rated homes, 67 kWh were used per square metre.

It is a requirement that BER ratings are made known to any potential renters or buyers in the future.

Solar panels are a long term investment

7 Years

A typical solar installation is fully paid back within 7 years. All solar panels we recommend are under warranty for 25 years, so you will enjoy at least 17 years of free energy generation.

0% VAT

As of 10 May 2023, the government has removed all VAT on solar installation and solar panel supply. This means solar has never been more affordable!

Government Grants

There is a range of government grants available for all new solar installations. Our team will guide you through the application process.

What type of home can have a solar system installed?

Almost any home can have solar panels installed. The size of your home, i.e. the available roof space, will however determine how many solar panels you can have fitted.

Households can now cover their entire roof with a solar system without the need for planning permission.

In some isolated cases, planning permission is still necessary. For example, homes located in a protected area, i.e, in an area of architectural conservation.

How do solar panels work?

Solar panels work by converting the sun’s rays into thermal or electrical energy.

A PV solar panel is made up of solar cells which contain silicon, or other semiconductor materials.

These contain electrons which create an electrical current when they interact with photons from the sun.

A solar inverter then converts this into AC electricity, which can be used in your home.

Solar panels work by converting the sun's energy into electricity

What does the solar panel installation process look like?

First, The solar panels are installed on the roof of your home.

Then the solar inverter is installed. This can be indoors or outdoors – but it is advised that it is installed indoors, in a cool and well-ventilated location.

To generate AC electricity, the inverter must be hooked up to the household unit. A meter will accompany the inverter so that electricity usage can be monitored.

The solar battery is next; this stores excess solar energy that can be used in less favourable weather conditions.

The last stage in the installation process is a diagnostics test, to ensure the solar panel system is working properly.

Get a Quote for Rooftop Solar

Take our 90-second online assessment and we’ll determine if your home is well suited to solar. It only takes 90 seconds and it’s 100% cost and commitment free.

Getting The Most Out of Your Home Solar PV System

You will get the most out of your solar panels by having a south facing roof.

As Ireland is located north of the equator, the sun shines from the south at all times.

And the more sunlight exposure your solar panels have, the more electricity they will generate.

The panels should be angled at around 35 degrees for optimum output. Luckily, in Ireland, most homes are built with roofs between 30 and 35 degrees.

Cleaning your solar panels and ensuring there are no trees or other obstacles in the way of direct sunlight will also maximise the electricity produced by your solar panels.

PV solar panels

How long do solar panels last?

Something to keep in mind when evaluating how much solar panels cost is their longevity. Modern solar panels generally last from 20 to 25 years with very little maintenance.

With the most common silicon solar panels, 1 sq. m of panels could generate 150W of power on a clear sunny day (that’s enough to power a laptop computer).

A solar PV system sized at 20 square metres (3kW) could potentially generate around 2,600 kWh of electricity.

This equates to around half of the annual electricity demand of an average Irish home.

lifespan of solar panels is 25 - 30 years

Get a Quote for Solar Panels Today

So now that you know how much solar panels cost in Ireland and how to get the most out of your it’s important to explore your options.

Take a FREE assessment on what is the best solar power option for you personally today.

consider getting solar panels installed on your home or business

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