Solar panels are absolutely worth it in Ireland despite many people thinking we don’t get enough sunshine. In fact Ireland has a great climate for solar, and the country surprisingly gets 1,100 – 1,600 hours of sunshine each year!
Solar panels in Ireland are a great investment for a many reasons – the most obvious being huge savings on energy bills. These savings mean solar panels pay for themselves in around 6-7 years.
There are other great benefits of solar PV too, such as increasing property values and making a positive impact on the environment.
In this guide we’ll debunk the myth that Ireland is too cloudy, calculate the savings you could make, the cost of solar in Ireland, and outline the many other benefits of going solar in 2024!
The key takeaways:
Table of Contents
Do solar panels work well in Ireland
The most common misconception about solar energy in Ireland is that our climate isn’t suitable. That’s understandable, as it’s absolutely true that we get a lot of cloudy days compared to most of Europe. But if it wasn’t worth it, why would 100,000+ Irish homes have installed solar panels on their rooftops?
The answer is simple. Solar panels work in Ireland because even on cloudy days, there is plenty of sunlight to generate more than enough electricity to justify the investment.
Diffuse sunlight is all that’s needed and the sun rises each morning whether we can see it or not! This means solar panels generate electricity every single day until they eventually begin to lose efficiency after around 3 decades.
Even in winter they will still produce electricity (but less than summer because of fewer daylight hours.)
In fact, Ireland’s climate is actually ideal for solar panels as our climate is heavily moderated by the Atlantic, meaning we don’t have to worry about extreme temperatures affecting the efficiency of our solar panels.
Why Solar Panels are Worth it in Ireland
Solar panels are an excellent investment that can help you save money every single day, while also achieving energy independence.
There are huge savings to be made with solar PV panels, and we recommend trying to get 50% – 70% of your electricity from solar.
The average household in Ireland consumes 4,200 kWh per year, meaning 10 solar panels could achieve this target.
Solar panels also pay themselves off in 6 or 7 years, and they generate free electricity for at least two decades after that, with enough excess power to sell back to the grid on good days.
Declining Cost of Solar Panels
Installing a solar panel system used to be out of reach for many households due to high costs, but upfront costs have fallen significantly over the past few years.
Technological advances have led to much cheaper and more efficient panels, and government incentives like grants and tax reductions have helped ease the burden of the initial investment.
Lower solar panel costs have led to an ever-shorter payback period in Ireland – the time it takes for solar panels to pay themselves off through savings on bills.
| Number of Panels | Installation Costs* | Estimated Annual Generation* |
| 8 panels | €6,500 | 3,000 kWh |
| 10 panels | €7,500 | 3,750 kWh |
| 12 panels | €8,500 | 4,500 kWh |
*Figures in this table are estimates based on 2024 solar PV panel prices, south-facing roof, average electricity consumption, and SSE Airtricity’s 24-hr Smart Rate (33.31c per kWh). Costs and savings vary depending on a number of factors.
0% VAT on Solar Panels
Solar panel installations have become cheaper in recent years as the solar panels themselves have become cheaper. These declining costs were boosted by the abolition of VAT on solar panels in May 2023.
The 0% VAT rate brought down the average cost of installing rooftop solar panels by as much as €1,000.
Solar Panel Planning Permission
Smaller, but still valuable savings have also come from the fact that Irish homeowners and businesses are no longer required to seek planning permission for solar panels in the vast majority of instances. Other than in specified Solar Safeguarding Zones located around airports, helipads, and other airstrips, no planning permission is needed for rooftop solar panel installation.
These savings, along with SEAI grant funding, make buying solar panels more affordable than ever before.
Where is the sun coming from in Ireland?
Solar panels work by converting sunlight into electricity, and for that reason it is necessary to know where the sun is coming from in Ireland to take full advantage of it. As we are in the northern hemisphere, the sun is always to the south of us, meaning south-facing solar panels will produce the most power overall.
Yearly Sunshine
Ireland typically receives between 1,100 and 1,600 hours of sunshine each year according to data from Met Éireann, with May and June as the sunniest months. During this time the country receives an average of 5 to 6.5 hours of sunshine each day.
Sunniest Regions
The south and south east regions of Ireland are the sunniest parts of the country, receiving up to 200 hours of direct sunshine during the summer months. The least sunny region is the northwest.
Solar Panel Orientation
The angle and orientation of solar PV panels have an impact on electricity production.
An east-west facing PV system will produce more energy in the morning and evening, while a south facing solar panel array will tend to have a higher output overall. It is a good idea to consider what time of day you have the highest demand for electricity when installing solar panels.
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.
Solar Panel Temperature v Efficiency
As solar panels work by converting sunlight into electricity, some people might think that hotter days are better. This is understandable – sunshine and warmth go hand in hand, after all.
However, a solar system is designed to work best within a certain temperature range, and solar panel efficiency will actually drop after it exceeds 25°C, which is the temperature of the Standard Test Conditions.
For every one degree Celsius over 25°C, the power production efficiency of your solar panels will be reduced by roughly 0.35%. A 28°C day (3 degrees above the perfect temperature), would see efficiency be reduced by over 1%.
Ireland’s cool climate is therefore ideal, with solar panels operating with greater efficiency than warmer countries like Spain or Italy.
How Much Can You Save on Energy With Solar Panels in Ireland?
By installing solar panels on your property you can potentially save more than 50% on your electricity bills, and this can be bumped up with additional investment.
Adding a solar battery will further increase the amount of electricity a solar system can create for your home depending on your usage patterns.
*Electricity Prices Based on Electric Ireland Standard Unit Price of 35.83c.
**Energy Production based on south-facing roof.
Solar PV Panels or Solar Thermal
There are two main types of solar panels, photovoltaic, better known as solar PV, or solar thermal.
Both solar PV panels and solar thermal have the potential to deliver significant savings, but a solar PV system is increasingly the better choice for a multitude of reasons.
Solar heat collectors can only be used to heat water for use in your home, but generating electricity through Solar PV can be used for many functions, including water by installing a power diverter to send excess energy to the immersion.
Cutting Your Energy Bills
The primary purpose of having rooftop solar panels installed is to reduce your energy bills, both for hot water and your business or household electricity bill.
Having just 20 sqm of solar panels installed on your rooftop can produce 2,600 kWh of electricity each year, more than 50% of a household’s annual average consumption.
The average household electricity usage in Ireland 4,200kWh according to the Commission for Regulation of Utilities but not all homes are average and detached homes will use far more than this.
Installing a power diverter for hot water, and battery storage system can potentially bring that up to as much as 70% of your annual electricity needs, though that will require additional investment.
As energy prices have gone through the roof in Ireland in the past two years, using rooftop solar to produce energy can help future proof against further cost increases in the years ahead.
Solar power can also make a huge impact on heating bills, as the vast majority of newly built homes favour electricity for heating ahead of oil and gas. CSO figures show that 89% of new builds between 2020 and 2023 use electricity for their main space heating. Just 11% made use of gas for heating and oil doesn’t factor at all anymore.
Electric Vehicle Charging
A solar system can be used not only to provide electricity for your home but also to help charge an electric car. Electric vehicles are becoming increasingly popular and affordable, and need to be charged from a reliable electricity supply.
Charging straight from the grid is already cheaper than fossil fuels, but setting up your solar system to charge the car is free energy in the tank. Many popular solar monitoring systems have interfaces which allow you to control how electrical energy is distributed.
How much does it cost to have solar panels installed in Ireland?
The average cost of solar panel installation in Ireland is between €4,000 – €16,000 after taking into account SEAI grants, with the exact price dependent on multiple factors.
The cost to install solar panels in Ireland depends on the size of the roof of your businesses or home, and how many solar panels you wish to have.
Other elements such as a Solar Battery can add €2,500 or more to the cost of a solar PV system. Additions such as this or a power diverter will also necessitate investing in a more expensive hybrid power inverter to allow the electricity to be split.
Grants for Solar Panels
While you might be put off by how much solar panels cost up front to install on your home, fortunately the Sustainable Energy Authority of Ireland offers grants to help make the change easier.
There are grants of up to €2,100 available to install solar PV panels on your home or business. The size of the grant depends on the scale of the solar PV system being installed.
In addition, an SEAI grant of €1,200 is also available for installing solar thermal panels.
Other grants and financial supports are available to help farms, businesses and others make the shift to renewable energy.
Solar Panels as an Investment
Solar panels are worth it in Ireland not only for their ability to cut down energy bills, but also as an excellent long term investment that can increase property values, and generate income once you have broken even on their cost.
With solar PV all of the cost is upfront, but it continues to pay dividends long after you have recouped the cost.
| Pros | Cons |
| Grants can offset some of the cost | High upfront cost of installation |
| Improves value of property | Dependent on weather and sunlight |
| Reduces electricity bills | Batteries/Inverters may need replacing in lifespan of solar system |
Selling Surplus Electricity
Since July of 2022 Irish homeowners, businesses and more have been able to sell any extra electricity generated by their solar panels back to the grid through the Micro-generation Support Scheme.
The amount that is paid for excess power is set by the utility company which is purchasing, and they each have their own rates for what you supply back to the grid. These are the feed-in-tariff rates as of September 2024.
You can only sell your surplus electricity back to the same utility company you are buying it from, so how much excess solar energy you produce versus how much electricity you use has to be taken into consideration.
Selling surplus energy back to the grid will also help to pay back the initial installation cost even faster, and once that has been paid off, not only are you getting free electricity, but also easy money from what you sell back.
As of 2024 the government has increased the amount of money which can be earned tax-free from selling surplus electricity to €400 a year. This is up from €200 when the scheme was first introduced in 2022.
Note: A smart meter must be installed on your home in order to get an accurate reading of how much electricity is being exported. Otherwise the energy provider will provide an estimate.
Increasing your Property Value
Adding solar panels to your home won’t just reduce your electricity bills, but it will also increase the value of your property.
Your home’s Building Energy Rating (BER) is an increasingly important factor in the value of a property if you’re looking to sell.
The BER scale rates homes from A to G in terms of their energy efficiency. This is determined by multiple factors such as insulation, and home heating, and also having green renewable energy such as solar panels.
Improving your property’s BER can yield significant increases in its list price.
Reducing your Carbon Footprint
On top of saving you money, or adding to property values, installing solar panels on your home or business is a good way for to reduce your carbon footprint, and help end reliance on fossil fuels.
Waiting for large scale wind or solar developments to wean Ireland off coal or gas could take years, while having home solar installed is something that can reduce emissions now.
The Intergovernmental Panel on Climate Change found in 2014 that rooftop solar power generates 41 grams of CO2 equivalent per kWh of electricity generated across its entire lifecycle.
All of that comes from the construction, transport, and installation process, with zero emissions once the solar panels are up and running.
Once you have a solar panel system installed, it can offset huge amounts of CO2 which would otherwise have been emitted by gas or oil heating, or by replacing the use of electricity from the grid derived from fossil fuels.
Having any solar system installed on your home, even one on the smaller size, can offset 1,000kg of CO2 emissions each year or more.
Find Out How Much You Can Save with Solar Panels
If you’re asking yourself are solar panels worth it in Ireland then check today to see how much you could save.
Get a free quote for solar energy today!
