4Kw Solar System Price in Ireland

Raj Singh
July 27, 2023

Homeowners in Ireland are turning their attention towards solar power, but how much does it cost to install a 4kw solar system? Reports suggest that these systems typically range between €8,000 and €10,000.

This comprehensive guide is designed to shed light on the 4kW Solar System Price in Ireland and highlight its potential savings. Join us as we dive into the world of solar energy, helping you make an informed choice towards a sustainable future.

Key Takeaways

  • The cost of installing a 4kw solar system in Ireland typically ranges between €8,000 and €10,000.
  • Factors that influence the cost include the type and quality of solar panels, the number of panels required, battery system inclusion, and inverter quality and features.
  • Government grants and incentives are available to help lower the cost of installing a 4kw solar system in Ireland.
  • Installing a 4kw solar system offers benefits such as reduced electricity bills, access to renewable energy, and positive environmental impact through reduced CO2 emissions.

Factors Affecting the Cost of a 4kw Solar System in Ireland

The type and quality of solar panels, the number of solar panels, battery system, inverter quality and features, as well as government grants and incentives are all factors that can affect the cost of a 4kw solar system in Ireland.

Type and quality of solar panels

High-quality solar panels typically deliver more power and longer-lasting performance. They are more efficient, meaning they generate more energy from the same amount of sunlight compared to lower quality panels.

In Ireland, 4kw solar systems often include top-tier solar panels made with advanced technologies. These premium options also come with improved warranties, assuring a return on investment in case repairs or replacements become necessary over time.

However, higher-quality does not always mean better suitability for every home; it's crucial to take into account your household electricity requirements and available roof space too.

Ultimately, the type and quality of your solar panel play pivotal roles in determining your system's efficiency and durability.

Number of solar panels

The number of solar panels plays a crucial role in determining the overall cost and performance of a 4kw solar system in Ireland. On average, a 4kw solar system requires around 12 to 16 solar panels, depending on their capacity and efficiency.

Each panel is typically able to generate about 250 watts of electricity.

It's important to consider the size and layout of your roof when determining the number of panels needed for your system. Homes with limited roof space may require higher efficiency panels or fewer panels than those with larger roofs.

Additionally, factors such as shading from nearby trees or buildings can also impact the number of panels required.

Battery system

Installing a battery system with your 4kw solar system is an excellent way to maximize the benefits of renewable energy in Ireland. By storing excess electricity generated by your solar panels, you can have power even when the sun isn't shining.

This means greater energy independence and potential savings on electricity bills. Additionally, a battery system allows you to reduce reliance on the Irish grid and potentially sell any excess electricity back to the grid.

With government grants and incentives available, investing in a battery system for your solar setup can provide long-term financial and environmental benefits for Irish homeowners.

Inverter quality and features

The quality and features of the inverter are crucial considerations when installing a 4kw solar system in Ireland. The inverter is responsible for converting the direct current (DC) electricity generated by the solar panels into usable alternating current (AC) electricity for your home.

A high-quality inverter ensures efficient energy conversion, maximizing the system's performance and reducing any potential power losses. Additionally, advanced features such as MPPT (Maximum Power Point Tracking) technology can optimize energy production even under partial shading or suboptimal conditions.

Investing in an inverter with good quality and modern features will enhance the overall effectiveness and reliability of your 4kw solar system.

Government grants and incentives

The government of Ireland offers grants and incentives to encourage homeowners to invest in solar energy systems. These grants can significantly lower the cost of installing a 4kw solar system, making it more affordable for homeowners.

The Sustainable Energy Authority of Ireland (SEAI) provides support and grants for solar PV installations, helping homeowners reduce their reliance on non-renewable energy sources and contribute to a greener future.

Taking advantage of these grants and incentives can make installing a 4kw solar system even more financially beneficial for Irish homeowners.

The Average Cost of Installing a 4kw Solar System in Ireland

The average cost of installing a 4kw solar system in Ireland varies depending on factors such as the type and quality of solar panels, battery system, inverter quality and features, as well as government grants and incentives.

Price range

The price range for a 4kw solar system in Ireland largely depends on various factors, including the type of solar panels used, the quality of the inverter, and the inclusion of a battery system.

Type: Price Range (€)

  • Basic 4kw Solar System: €8,000 - €10,000
  • 4kw Solar System with Battery: €10,500 - €14,000
  • 4kw Solar System with Premium Inverter: €10,000 - €12,000
  • 4kw Solar System with Government Grant: €3,200 - €15,600
  • Smaller Solar Systems: €5,000 - €8,000
  • Larger Solar Systems: €8,000 - €15,000

It's also worth mentioning that support from the Sustainable Energy Authority of Ireland (SEAI) can significantly reduce the cost of installing a 4kw solar system. In fact, their grants can bring the total cost down to between €3,200 and €15,600, depending on the specifics of your solar PV system. And over time, the reduction in electricity bills and environmental benefits of using a solar system can make this an investment that pays for itself.

Benefits of Installing a 4kw Solar System

Installing a 4kw solar system in Ireland offers homeowners several benefits such as reduced electricity bills, access to a renewable energy source, and positive environmental impact through reduced CO2 emissions.

Reduced electricity bills

Installing a 4kw solar system in Ireland can lead to reduced electricity bills. By generating clean and renewable energy from the sun, homeowners can rely less on traditional sources of power, thus reducing their monthly electricity costs.

On average, a 4kw solar system in Ireland can generate around 4,520 kWh of electricity per year. This means that homeowners can offset a significant portion of their energy consumption and potentially lower their reliance on the Irish grid.

With rising energy prices, investing in a solar system offers long-term savings and financial benefits for Irish households.

Renewable energy source

A 4kw solar system in Ireland serves as a renewable energy source for homeowners. By harnessing the power of the sun through photovoltaic panels, this system generates electricity that can be used to power homes.

This means less dependency on traditional fossil fuels and a reduction in carbon dioxide emissions. Switching to a renewable energy source like solar power not only benefits the environment but also decreases reliance on non-renewable resources, making it a sustainable and cost-effective choice for homeowners in Ireland.

Environmental benefits

Installing a 4kw solar system in Ireland offers numerous environmental benefits. One of the key advantages is a significant reduction in carbon dioxide (CO2) emissions. By generating clean and renewable energy from sunlight, homeowners can reduce their reliance on fossil fuels and decrease their carbon footprint.

In addition to reducing greenhouse gas emissions, solar power also helps conserve valuable natural resources. Unlike traditional electricity generation methods that rely on the burning of fossil fuels or nuclear energy, solar panels harness the power of the sun to produce electricity without depleting finite resources or producing harmful waste products.

Furthermore, by installing a 4kw solar system at home, Irish homeowners contribute to the country's overall sustainability goals. Solar power plays an integral role in transitioning towards cleaner and more sustainable energy sources while decreasing dependence on imported fuels.

Embracing renewable energy not only benefits individual households but also contributes to creating a greener future for Ireland as a whole.


In conclusion, investing in a 4kw solar system in Ireland can be a cost-effective and environmentally friendly choice for homeowners. With the potential to reduce electricity bills, generate renewable energy, and contribute to a reduction in CO2 emissions, the benefits of installing a solar system are clear.

Plus, with government grants and incentives available, now is the perfect time to make the switch to solar power. Don’t wait any longer, contact NuSolas Energy today to start your journey towards a greener future!

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Frequently Asked Questions

How much does a 4kw solar system cost in Ireland?

The price of a 4kw solar system in Ireland can vary depending on factors such as the brand, quality of materials, installation fees, and any additional features or components. It is best to contact local solar installers for specific pricing information.

Are there any government incentives or grants available for installing a 4kw solar system in Ireland?

Yes, the Irish government offers various incentives and grants to promote renewable energy adoption, including solar PV systems. These incentives can help offset the cost of installing a 4kw solar system. It is recommended to check with relevant authorities or consult with a professional installer for detailed information on available schemes.

What factors should I consider when comparing prices for a 4kw solar system in Ireland?

When comparing prices for a 4kw solar system in Ireland, it is important to consider factors such as the quality and efficiency of the panels and inverters, warranty periods offered by manufacturers and installers, the reputation and experience of the installer, as well as any additional services included in the package (e.g., maintenance).

Can I expect savings on my electricity bills by installing a 4kw solar system?

Yes, installing a 4kw solar system can lead to significant savings on electricity bills over time. The amount of savings will depend on factors such as your household's energy consumption patterns, sunlight availability in your area, the orientation and tilt angle of the panels, and any feed-in tariff or net metering programs offered by your utility provider. A professional installer can provide more accurate estimates based on your specific circumstances.

How much electricity does a 4kW solar system produce?

A 4kW solar system can produce an average of 3,400 kWh of electricity annually in Ireland. This figure, however, can vary based on your location, roof orientation, shading, and weather conditions.

How long does a 4kW solar system last?

A well-maintained 4kW solar system can last for about 25 years. Regular cleaning and maintenance can help ensure the system continues to perform optimally throughout its lifespan.

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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.
About Author
Raj Singh

A seasoned professional in the solar industry, Raj Singh is dedicated to illuminating Ireland with the power of the sun. His passion for renewable energy and commitment to sustainability shine through his work in the solar industry.