How Much Do Solar Panels Cost in Ireland? (2024 Updated)

Joe Brennan
May 1, 2023

Are you considering installing photovoltaic panels for your home or business in Ireland? Understanding the cost of installing solar panels in Ireland can be challenging. This comprehensive guide on solar panel cost in Ireland will break down everything you need to know about PV solar panels prices in Ireland, the average cost, and how much solar panels are in Ireland for residential and commercial use. Let’s get started!

How Much Do Residential Solar Panels Cost?

The average cost of solar panels in Ireland varies based on the system size, panel type, and installation factors. Typically, a residential solar PV system ranges from €6,000 to €13,000, including installation. This range covers systems from 2kW to 6kW, the most common residential property size.

Commercial Solar Panel Cost in Ireland

The cost of commercial PV panel installations depends on the size and complexity of the project. The price per watt may decrease for larger systems due to economies of scale. Commercial solar PV installations in Ireland cost between €15,000 and €200,000 or more, depending on the project’s size and requirements.

Solar Panel Costs in Ireland (Before and After Grants)

For a small system with a rated capacity of 2kW, producing an annual output of 2,856 kWh, the cost before the grant is €5,700. After applying the SEAI grant:

  • The net cost becomes €3,900
  • The estimated annual output is 2,856 kWh

Moving on to a medium-sized system with a rated capacity of 5kW and producing 3,573 kWh annually, the cost before the grant is €10,000. After factoring in the SEAI grant:

  • The net cost reduces to €7,600
  • The estimated annual output is 3,573 kWh

Considering a large system with a rated capacity of 9kW and an annual output of 4,323 kWh, it costs €18,000 before the grant. Once you apply the SEAI grant:

  • The net cost is €15,600
  • The estimated annual output is 4,323 kWh

Solar Panel Costs and Performance for Different House Sizes

The cost of solar panels can vary depending on the size of your home and the number of panels required. Here’s a comparison of different solar array sizes, cost, generation, CO2 saved, and ROI for different house sizes after the SEAI grant:

For a 2-bed terraced house with a solar array size of 2 kWp (5 x 400w panels), the cost after the SEAI grant is €3,900. With this setup:

  • The annual output is 2,856 kWh
  • CO2 savings are up to 770 kg
  • The ROI is 18.0%

For a 3-bed semi-detached house with a solar array size of 3 kWp (7 x 429w panels), the cost after the SEAI grant is €5,880. In this case:

  • The annual output is 3,000 kWh
  • CO2 savings are up to 900 kg
  • The ROI is 20.5%

In the case of a 4-bed detached house with a solar array size of 5 kWp (12 x 417w panels), the cost after the SEAI grant is €7,600. Here’s what you can expect:

  • An annual output of 3,573 kWh
  • CO2 savings of up to 1,500 kg
  • An ROI of 23.3%

Finally, for a 6-bed detached house with a solar array size of 7 kWp (16 x 438w panels), the cost after the SEAI grant is €13,000. With this setup:

  • The annual output is 4,800 kWh
  • CO2 savings are up to 2,100 kg
  • The ROI is 25.2%

Factors Influencing Photovoltaic Panel Prices

When determining the cost of installing solar PV panels in Ireland, several factors contribute to the overall price. These factors include

Type and Size

The cost of a solar energy system depends on the size and type of the system you choose. Larger systems with higher capacities will be more expensive than smaller systems.


The quality of the panels you choose will impact the price. Higher-quality panels typically have a higher price tag but can offer better efficiency and longer-lasting performance.

Installation Costs

Solar panel installation prices in Ireland can vary depending on the project’s complexity, location, and the solar installer you choose. These costs may include labour, permits, and equipment.

Incentives and Grants

The Sustainable Energy Authority of Ireland (SEAI) offers grants to significantly reduce the cost of solar PV installations in Ireland. The grant amount depends on the size and capacity of your solar PV system.

Savings and Return on Investment (ROI)

Photovoltaic panels can help homeowners and businesses save money on electricity bills by generating clean, renewable energy. The ROI for renewable energy in Ireland depends on the size and cost of the system and the amount of power generated and used.

Here’s a breakdown of potential savings and earnings for different system sizes:

Small system (2 kW rated capacity):

    • Annual Savings: €400
    • Annual Earnings: €100
    • Total Annual Benefit: €500

Medium-sized system (5 kW rated capacity):

    • Annual Savings: €800
    • Annual Earnings: €200
    • Total Annual Benefit: €1,000

Large system (9 kW rated capacity):

    • Annual Savings: €1,200
    • Annual Earnings: €300
    • Total Annual Benefit: €1,500

On average, it takes about 7-10 years for a solar PV system to pay for itself through savings on energy bills. This makes solar energy not only an environmentally friendly choice but also a financially sound investment.

Feed-in Tariffs

Besides savings on energy bills, solar PV owners in Ireland can earn money through feed-in tariffs. Feed-in tariffs are payments made to solar PV system owners for the excess energy they generate and feed back into the grid. This additional income can further improve the ROI of your investment.

Increased Property Value

Photovoltaic panels can also increase the value of your property. According to studies, homes with solar PV systems sell faster and at a higher price than homes without. This added value can be an essential factor to consider when assessing the overall ROI of your investment.

Solar Storage Battery Costs in Ireland

In addition to the cost of solar panels, some homeowners may also consider investing in a solar storage battery. These batteries allow excess solar energy to be stored for later use when the sun isn’t shining. The cost of a typical solar storage battery that can store about 5.1kWh of power can add around €3,600 to €4,000 to the cost of a PV solar panel installation.

While solar storage batteries can be a significant upfront cost, they can also provide additional benefits regarding energy independence and greater control over electricity usage. For example, if you are mostly away from home during the day when your panels produce most of their electricity, a battery can store some of that power when you return later. However, storage may be less of a priority if your home is normally occupied during the day.

Get a Customized Quote Today!

Now that you understand the cost of installing solar panels in Ireland and the potential savings, it’s time to take the next step. At Going Solar, we offer competitive pricing and expert installation services for both residential and commercial systems. Contact us today for a free, no-obligation quote tailored to your specific needs and start enjoying the benefits of solar energy!

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Frequently Asked Questions

How much does it cost to install a PV panel in Ireland?

The cost of installing solar panels in Ireland typically ranges from €4,000 to €10,000 for residential systems and €15,000 to €200,000 or more for commercial installations, depending on the system size and complexity.

Is solar power worth it in Ireland?

Yes, solar power can be a worthwhile investment in Ireland, given the savings on energy bills and available government incentives. The return on investment can be as short as 7 to 10 years, making solar power an attractive option for homeowners and businesses.

How many solar panels do I need to run my house in Ireland?

The number of panels you need depends on your household’s energy consumption and the panels’ efficiency. A typical Irish home may require a 4kW to 6kW solar system, usually 12 to 20 panels.

How much is a 2kW solar panel in Ireland?

A 2kW solar PV system in Ireland costs approximately €4,000 to €6,000, including installation. This price may vary depending on the type of panels, installation complexity, and additional equipment needed.

How much does a 5kW solar system cost in Ireland?

The cost of a 5kW solar system in Ireland can vary depending on factors such as installation complexity and equipment quality, but it typically ranges between €7,000 and €10,000.

How long do solar panels last in Ireland?

Solar panels in Ireland generally have a lifespan of 25 to 30 years, although their efficiency may gradually decrease over time. Regular maintenance and cleaning can help maximize their longevity.

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*FYI, parts of this blog post were drafted by artificial technlogy. But rest assured, it's been thoroughly researched, edited, reviewed and me & my team.
Author Fahad Zahid
Founder @ Going Solar

Joe Brennan, the founder of Going Solar, is dedicated to making solar power mainstream in Ireland and meet SEAI objectives. With a focus on affordability and sustainability, he is bringing renewable energy solutions to homes, reducing costs & environmental impact.