Are you wondering how much does a 4 bedroom solar panel cost in Ireland?
Well, the price of solar panels for a four bedroom home depends on a few things, like how much energy you use, the size of your roof, and the type of panels you choose.
On average, a 4.92 kW system with 11 panels is usually enough to meet the energy needs of a typical four bedroom house.
In this blog, we’ll look into the costs, look at what affects the price, and help you see how solar energy can lower your electricity bills.
How Much Does a 4 Bedroom Solar Panel Cost in Ireland?
The cost of a four bedroom solar system can vary. Here’s a quick look at what you might expect, after applying the SEAI grant:
Estimated Cost for a Smaller Four Bedroom Home:
This is a good choice if your home uses moderate amounts of energy.
- 4.92 kW system: Around €6,170
Estimated Cost for a Larger Four Bedroom Home:
These systems are better suited for homes with energy-hungry appliances, heating systems, or electric vehicle (EV) chargers.
- 6 kW system: Around €6,709
- 6.9 kW system: Around €7,176
These prices can change depending on the brand of the panels, whether you add battery storage, and the specifics of your installation. But with the SEAI grant and modern panel efficiency, solar has never been more affordable!
What Affects the Cost of Your Solar Panel System?

There are a few things that influence the cost of your solar panel system. Let’s take a look at them:
1. System Size (Number of Panels)
The bigger the system, the more power it generates. If you’ve got high-energy appliances like heat pumps or EV chargers, you’ll need a bigger system, which will cost more.
2. Quality of Installation
How well your system is installed matters a lot. Good installation ensures that your system will work properly for years to come. Always go for certified installers with a good reputation.
3. Panel Efficiency & Brand
Higher-quality panels tend to cost more at first, but they are more efficient and last longer. Choosing a trusted brand can help you save in the long run.
4. Battery Storage
Adding a battery allows you to store extra energy for later. This means you’ll rely less on the grid, saving you even more on your bills. While it adds to the initial cost, it can be a smart investment in the long run.
5. Power Diverter
A power diverter sends any extra solar power to your hot water system. This way, you get the most out of your solar energy without a huge additional cost.
6. Inverter Selection
The inverter changes the energy from your panels into usable electricity. If you pick a high-quality inverter, like ones from Fronius, Enphase, or SMA, your system will work better and last longer.
How Much Energy Does a Four Bedroom House Use?
Typically, a four bedroom house in Ireland uses between 4,000 kWh and 5,000 kWh of electricity each year. This covers your lighting, appliances, and heating.
A 4.92 kW solar system, which usually comes with 11 standard panels, can cover this energy use. However, the amount of energy your system will produce can vary depending on how much sunlight your area gets.

How Many Solar Panels Do You Need?
If you’re wondering how many panels you need, here’s a rough guide:
- Standard 450W panels: You’ll need about 11 panels to make up a 4.92 kW system.
- High-efficiency panels (500W+): If you have limited roof space, these are a great option as you’ll need fewer panels.
How to Calculate the Number of Solar Panels You Need?
To figure out how many panels you need, follow these simple steps:
Step 1: Determine Daily Energy Usage
- Check your annual kWh consumption on your electricity bill.
- Divide by 365 to get average daily usage.
Step 2: Establish Panel Baseline
- Note that a 4.92 kW system generally needs about 11 standard panels.
- Use this as your starting point.
Step 3: Adjust for Local Sunlight
- Research your area’s average peak sun hours.
- Fewer sun hours → more panels; more sun hours → fewer panels.
Step 4: Factor in Battery Storage
- Decide if you want a battery for extra savings.
- Remember: batteries increase upfront cost but reduce grid reliance and boost long‑term savings.
What Are the Benefits of Having Solar Power?
Here are the top benefits of going green with solar panels:
1. Generate Your Own Power
Every kilowatt your panels produce is one less you buy from the grid—watch your electricity bills drop from day one.
2. Earn with Feed‑in Tariffs
Any surplus electricity you don’t use can be exported under Ireland’s micro‑generation scheme, putting money back in your pocket.
3. Fast Payback
With the SEAI grant and Ireland’s decent sun levels, most homeowners break even in just six to seven years.
4. Reduce Your Carbon Footprint
Each kWh of solar energy you produce avoids tons CO₂.
Ready to Explore Your Solar Options?
Don’t miss out on the chance to save on your electricity bills and make your home more sustainable. Start your solar journey today!
Get a free quote and find out how solar power can work for your home. Contact My Power now for a greener, more cost-effective future!
Conclusion
The 4 bedroom solar panel cost in Ireland can vary depending on your home’s energy needs, the system size, and the efficiency of the panels you choose.
By investing in solar, you can lower your electricity bills, boost your home’s value, and reduce your carbon footprint.
Get in touch with My Power today to discover the best solar solution for your home!
Frequently Asked Questions
1. How much does a 4 bedroom solar panel system cost in Ireland?
The price for a 4 bedroom solar panel system in Ireland ranges from around €6,170 for a 4.92 kW system to €7,176 for a 6.9 kW system, depending on your home’s energy needs and the type of system you choose.
2. What factors influence the cost of a solar panel system?
The main factors include system size, installation quality, panel efficiency, brand, and whether you include battery storage or a power diverter.
3. How many solar panels are needed for a 4 bedroom home?
A typical 4 bedroom home requires around 11 standard 450W panels for a 4.92 kW system. High-efficiency panels (500W+) can reduce the number of panels needed.
4. What is the payback period for a 4 bedroom solar system?
With the SEAI grant and average Irish sunlight, most homeowners recoup their investment in about 6-7 years.
5. Do I need a battery with my solar system?
While not essential, adding a battery allows you to store excess energy, reducing your reliance on the grid and providing long-term savings.
6. How does solar power affect my electricity bills?
Solar panels help you generate free energy, reducing your electricity bills by lessening your dependency on the grid.