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The costs of solar panels in Ireland varies substantially and changes over time.
Below, you’ll see how much solar panels cost in Ireland in 2025.
Plus, we reveal 5 tips to reduce these costs.
Also included is a Solar Panel Payback Period Calculator and Solar Panel Grant Calculator to help you estimate how long it’ll take you to recoup costs.
Key takeaways:
Related: Are Solar Panels Worth It In Ireland?
Solar panels cost between €5,000 and €20,000 in Ireland.
While there are outliers, this is the typical cost range.
| Home size | Solar Panels Cost Range |
| Small to medium | €5,000 – €10,000 |
| Larger homes | €10,000+ |
Small to medium homes would generally fall into the €5,000 – €10,000 cost range. While larger homes would typically see costs of €10,000 and above.
Less energy efficient homes would typically have higher costs too. This is because they require more energy to run, and therefore, more solar panels to meet energy demands.
But every home is different and household energy demands vary.
Complete short form below to get a free, no-obligation quote for a bespoke solar panel installation.
So let’s get specific with an example.
Let’s say a 2 bedroom, 3 occupant household, consumes 3,200 kWh of electricity annually. 2 occupants work from home so they primarily consume energy during the day. The home is a typical 1980’s Dublin terraced house, that was rewired in 2010. The occupants are seeking peace of mind with future proofed premium products and the highest installation standards.
Related: see how much electricity is generated, by area, from solar panels in Dublin.
A free site survey reveals that a 2.6kWp system (without a battery but with the option to easily add one in future), is recommended.
6 solar panels (435W each) would be installed along with a hybrid inverter and all required system components. A 5-year workmanship warranty is included along with a 30 year solar panel performance warranty.
In this example, the cost would be approx. €6,480 after the 2025 SEAI grant is applied.
The upfront costs would be lower.
Typically solar panel installers would require a deposit before commencing work. 20% – 50% is common.
Assuming a 50% deposit, the upfront cost in this example would be €3,240.
However, if finance was arranged there’d be no upfront costs. Assuming an APR of 7.96% and a 5-year term, the total cost would be approx. € 7,794. The monthly repayment cost for the solar system would be around € 127.40.
The table below summarises the solar panels cost by category.
| System Size | Solar Panels | Cost | Cost before grant | Upfront cost | Estimated cost if financing |
| 2.6kWp | 6 x 435W bifacial tier 1 panels | €6,480 | €8,000 | €3,240 | €7,794 |
These are estimated costs. To see how much a high quality, bespoke, future proofed solar panels solution costs, get a free, no-obligation quote below.
As mentioned, costs vary.
And there are ways to reduce the costs of solar panels.
So let’s get to that, right after a brief look at the key factors that impact how much solar panels cost.
The 3 key factors impacting the cost of solar for Irish homeowners are:
Without going into too much detail (e.g., manufacturing and importation costs), these are the main categories that the costs fall into that are most relevant to Irish homeowners.
Let’s briefly take a look at each.
The larger the system the higher the cost.
A 10.4kWp solar system costs more than a 2.6kWp system.
This is simply because there’s more product and installation costs required.
A 10.4kWp solar system would require the purchase and installation of 24 solar panels, while the 2.6kWp system would need just 6 solar panels, which would be quicker to install.
The size of the system depends on many factors including household energy demand, customer goals, available space for the panels and the overall solar potential (i.e., how much electricity can be generated from the system in the specific location, incl. direction of the home, angle of the panels, shading, etc.).
Other factors, like system losses, also impact system size.
System features and quality impact the cost of a solar system.
System features include battery storage, hot water diverters, EV chargers and so on.
These are optional additions to a solar panel system.
They aren’t always required and may not suit everyone.
If they are suitable and included, they add an extra cost to the system.
Ultimately, this added cost can be recouped in the long term as they help Irish homeowners get the most of the power generated.
Quality refers to the products installed and also workmanship standards.
Cheaper solar products tend to be less efficient and have a shorter lifespan. Premium solar products tend to come with long warranties (both product and performance warranties).
Lower quality products can be cheaper initially, but due to maintenance and replacement costs, they can be more expensive over time.
Premium products will have higher initial costs but can be more cost-effective over a longer period of time.
This is similar to workmanship quality.
Rapid installs can have cheaper initial costs. But corners can be cut. Low quality workmanship can result in massive problems, e.g., roof leaks.
High quality workmanship typically results in longer and more expensive installations. But experience and specialisation can reduce installation time and costs too.
Workmanship warranties can be a good indication of workmanship standards.
For example, Ohk energy offers a 5-year workmanship warranty as standard.
Government incentives impact the cost of installing solar in Ireland.
The current SEAI grant for domestic solar panels is capped at €1,800. The grant value depends on the size of the solar system being installed.
And not all homes are eligible for this grant.
Get a quote below to see if you can avail of this grant – our in-house grant coordinators manage the entire grant process.
This government incentive reduces upfront installation costs.
But grants are reducing.
The max SEAI grant for solar panels has been dropping by €300 each year.
Another government incentive (introduced in 2023) is the 0% VAT rate on the supply and installation of solar panels. The intention being to lower the cost of solar in the entire Irish market.
So, with these incentives and the unique factors that impact solar costs for each home, the question now is: How long does it take to recoup these costs?
Let’s take a look at this next.
Typically, it takes 5-7 years to recoup the costs of solar panels in Ireland.
The electricity generated after this period is free.
We can work out how long it takes for a solar system to pay for itself by dividing installation costs with the value of the annual electricity expected to be generated. The value should be based on the rate you currently pay per kWh.
Let’s take our example above.
It cost us €6,480 for our solar panel installation. And we use 3,200 kWh of electricity annually (we matched our system to generate roughly the same).
If we pay 43 cents per kWh, our annual electricity value works out to €1,376.
€6,480 / €1,376 = 4.7.
So it would take us 4.7 years until we recouped our costs.
This is somewhat of an oversimplification. Standing charges on bills, system losses, etc., haven’t been included and we’re assuming we consumed exactly what we generated. Many additional factors come into play.
But it still gives us a good time estimate. We’d fall in or near the typical 5-7 year payback period for Irish homeowners.
For convenience, the calculator below will do the maths for you.
Estimate how long until your solar panel installation pays for itself.
Simply enter your solar quote (or how much you paid for your install), your estimated annual power generation (in kWh) and the price you pay per kWh (available on your electricity bill).
Time to recoup your solar investment.
Please note: results are intended to provide a rough estimations only. Results do not include utility standing charges, selling electricity back to the grid, etc. Your actual payback period will be slightly different.
So, now that you have a sense of what your payback period might be, let’s take a look at how you can reduce the costs of installing solar.
There are several ways to reduce the cost of solar panel installations.
Here are 5 key ways (some are often overlooked):
Let’s briefly jump into each.
Reducing your energy consumption before installing solar panels will reduce installation costs.
This is because you’ll need less solar panels to meet your demand.
There’ll also be less cabling, MC4 connectors, and other equipment required. And the installation time will be lower.
These can all lead to savings on installation costs.
That’s only if you can reduce your energy consumption sufficiently.
Reducing clothes dryer usage, washing machine and dishwasher loads, and reducing shower time can deliver quick and substantial energy savings.
Government grants can reduce upfront and overall costs when it comes to solar.
Grants in Ireland are available from the SEAI.
The grant value depends on the system size being installed.
Use this SEAI grant calculator to see the grant value for different system sizes. Simply enter the solar system size (i.e., the kWp) and see how much your solar panels cost with drop.
Estimated grant for 0.0kWp solar system.
The grant for solar panels is reducing every year.
You can lock in the current higher grant value for 8 months (as of writing) before it drops. You just need to apply and be approved – complete the solar quote form at the bottom of this page to lock in the higher grant value.
You can reduce the costs of a solar installation by shopping around and negotiating.
The SEAI recommend getting several quotes before choosing an installer.
Make sure they’re registered solar installers, check their reviews, see if they offer workmanship warranties, etc., beforehand.
And remember cheaper now isn’t always cheaper in the long term.
If you find a premium installer delivering premium products, but you’ve received a cheaper quote, consider getting in touch with their sales reps again. Maybe there’s space to negotiate a little.
If possible and applicable, reduce shading.
This may mean trimming a tree or two that’ll obstruct direct sunlight to the panels.
This can reduce installation costs because you may need less equipment to meet your power demands.
But it shouldn’t be a deal-breaker. The panels can be installed elsewhere.
The goal is to find the optimal position for both you and the system itself.
Referral programmes can help recoup solar installation costs.
Some installers, like Ohk energy, reward customers that refer a friend or family member.
If their installation goes ahead, we say thank you for helping us grow and making Ireland greener, with a €200 gift voucher.
Each customer gets a unique link after their installation that they can share.
There’s no limit on the number of referrals.
The best way to find the cost of a solar panel installation is to get a quote, with a free site survey, for a bespoke system.
Costs need to take into account your home, household energy usage and more.
To get a free, no-obligation, site survey and quote, simply complete this short form now:
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