Can You Heat a House With Solar Panels in Ireland? The Future of Energy is Here

Raj Singh
May 21, 2023

Are you worried about the rising cost of heating your home in Ireland? You're not alone. The increasing energy prices have led many Irish homeowners to seek alternative, more sustainable ways to keep their homes warm. But is there a solution? Can you heat a house with solar panels in Ireland? The short answer is yes! Let’s delve into the details and explore the exciting world of solar energy.

The Basics of Solar Energy

Firstly, it's crucial to understand the basics of solar energy. Solar power is a clean, renewable energy source harnessed from the sun's rays. It converts sunlight into electricity using photovoltaic (PV) cells. These cells are typically found in solar panels installed on rooftops or other open areas.

How Do Solar Panels Work?

Solar panels work by converting sunlight into electricity. They are made up of several solar cells consisting of silicon, phosphorous, and boron layers. When sunlight hits the panels, it energises the electrons, creating an electric current. This is then converted from DC to AC electricity for use in your home.

Even on cloudy days, solar panels can absorb energy. They don't need direct sunlight to function, just daylight. This makes them effective even in Ireland's often cloudy and rainy climate.

Can Solar Panels Provide Heat?

Solar panels can provide heat through two primary methods: solar thermal panels and photovoltaic (PV) panels.

Solar Thermal Panels

When considering solar energy for heating, the first technology that comes to mind is solar thermal panels. These panels absorb heat from the sun and use it to warm up water stored in a hot water cylinder. You can then use this hot water for showers, washing dishes, or even central heating.

Photovoltaic Panels and Heat Pumps

Another way to heat your home using solar panels is by combining photovoltaic panels with a heat pump. The photovoltaic panels generate electricity, which can then power a heat pump. Heat pumps extract heat from the air, ground, or water and use it to heat your home and provide hot water.

Can You Heat a House with Solar Panels in Ireland?

The answer is a resounding yes. Solar energy can effectively heat your home, and it's an increasingly popular option in Ireland. However, some considerations come into play.

Solar Radiation in Ireland

Despite Ireland not being the sunniest country, it receives enough solar radiation to make solar panels a viable option. On average, Ireland gets about 3.2 hours of sunlight per day throughout the year, which is more than enough for solar panels to generate useful heat.

Optimal Panel Placement

To harness maximum solar energy, panels should ideally be south-facing and installed at an angle of 30-40 degrees. This positioning ensures optimal exposure to sunlight throughout the day.

Seasonal Considerations

While solar panels work year-round, their output is significantly higher during the sunny summer months compared to the shorter, cloudier winter days. Therefore, you may need to supplement your solar heating with a conventional heating system during winter.

Energy Storage

If your solar panels produce more energy than you can use during the day, you can store the excess in a battery for use when the sun isn't shining. This capability allows you to extend the use of solar energy into the night or during cloudy periods.

Government Supports and Incentives

The Irish government supports the transition to renewable energy sources, offering several incentives for homeowners who install solar panels.

The SEAI Solar Panel Grant

The Sustainable Energy Authority of Ireland (SEAI) provides grants for installing solar panels and battery energy storage systems. NuSolas Energy can guide you through the application process, ensuring you get the maximum grant available.

The Micro-generation Support Scheme

This scheme, proposed by the Irish government, aims to pay micro-generators for excess electricity they export back to the grid. While it's still in the consultation stage, it promises to be a game-changer for homeowners with solar panels.

How to Heat Your Home with Solar Panels in Ireland?

Heating your home with solar energy involves a few key steps:

Assessment and Planning

First, it's essential to assess your home's suitability for solar panels. This assessment includes considering the amount of sunlight your property receives, roof orientation and angle, and space for potential panel installation.

Choosing the Right Solar Panels

As mentioned earlier, there are two main types of solar panels – photovoltaic and solar thermal. The best choice depends on your specific needs and circumstances. If you're unsure, NuSolas Energy can provide expert advice to help you make an informed decision.


The next step is the installation of the solar panels. This process should be carried out by professionals to ensure safety and efficiency. At NuSolas Energy, we take care of this for you, providing high-quality installation services with minimal disruption to your daily routine.

Integration with Home Heating System

Once the solar panels are installed, they need to be integrated with your home's heating system. This integration allows the energy captured by the panels to be used to heat your home effectively.


After installation, solar panels require minimal maintenance. However, it's essential to keep them clean and free from shading to ensure they continue to work effectively.

The Benefits of Heating Your Home with Solar Panels

Lower Energy Bills

The most direct benefit of using solar panels for heating is the significant reduction in energy bills. Once you've paid for the initial installation, the energy you get from the sun is absolutely free. This can save you a considerable amount of money over the lifespan of the system.


Solar panels produce clean, green renewable energy. Unlike traditional fossil fuels, they do not release harmful carbon dioxide or other pollutants. By choosing to heat your home with solar energy, you are contributing to the reduction of greenhouse gas emissions and helping to combat climate change.

Energy Independence

With solar panels, you can produce your own heat and electricity, reducing your dependence on energy suppliers. This not only shields you from fluctuating energy prices but also enhances your home's self-sufficiency.

Ready to Harness Solar Power in Your Home?

Harness the power of the sun and significantly cut down your energy bills. At NuSolas Energy, we're ready to help you explore how you can heat your house with solar panels in Ireland. Don't wait! Contact us today to start your journey towards sustainable living. Your perfect solar solution is just a call away!

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Frequently Asked Questions

Can solar panels be used to heat a house?

Yes, solar panels can be used to heat a house. There are two main types of solar panels for this purpose: solar thermal panels and photovoltaic (PV) panels. Solar thermal panels heat water that can be used for radiators or underfloor heating systems, while PV panels generate electricity that can power electric heaters.

Can solar panels heat radiators?

Absolutely! Solar thermal panels are particularly effective in heating radiators. They work by absorbing heat from the sun to heat water in a hot water cylinder. This hot water can then be circulated through radiators to heat your home.

How many solar panels does it take to heat a house?

The number of solar panels needed to heat a house depends on various factors, including the size of the house, its insulation, and the local climate. On average, it might take between 17 to 21 solar panels to effectively heat a typical house in Ireland.

How many solar panels does it take to run a heater?

The number of solar panels required to run a heater depends on the power of the heater. A small, energy-efficient heater might require the energy produced by approximately 3 solar panels. However, this could vary based on the heater's usage and the efficiency of the solar panels.

How long does a solar heater take to heat?

The time a solar heater takes to heat can depend on several factors such as the size of the system, the amount of sunlight, and the initial water temperature. On average, it might take about 5-6 hours of good sunlight for a solar water heater to heat water to a usable temperature.

What is the highest temperature a solar heater can reach?

Solar water heaters can typically heat water to temperatures around 60-80°C. However, the exact maximum temperature will depend on the specific system and the amount of sunlight it receives. Always ensure that your system has a temperature control feature to prevent overheating.

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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.