What are solar thermal panels and how do they work?

How do Solar Thermal Panel works

Solar thermal panels, unlike photovoltaic solar panels that generate electricity, take a different approach. Are you curious by How do Solar Thermal Panels work and transform sunlight into hot water? Be with us to be familiar with inner workings of solar thermal panels and discover how they bring sunshine to your daily tasks.

What are the Solar Thermal Panels?

Thermal solar panels, specifically, are an important tool in utilizing solar energy for heating purposes. These panels can be used to generate hot water for residential or commercial buildings, as well as for space heating or even industrial processes. By capturing the sun’s energy and converting it into heat, thermal solar panels can provide a reliable and cost-effective source of renewable energy. This not only is helpful in reducing the demand for fossil fuels but also contributes to energy independence and security. Overall, the importance of thermal solar panels cannot be overstated in the transition towards a more sustainable and environmentally friendly energy future.

 Additionally, solar thermal panels require minimal maintenance and have a long lifespan, further reducing the overall cost of ownership.

Solar thermal panels, which are also known as solar collectors, are devices designed to harness the heat energy that has been emitted from the sun and convert it into usable thermal energy. These panels use the sun’s rays to heat a fluid that is then circulated through a system to provide hot water, space heating, or even electricity generation. The functioning of solar thermal panels is based on the simple principle of absorbing sunlight and converting it into heat energy, making it a sustainable alternative to traditional fossil fuel-based heating systems.

How do Solar Thermal Panels work

solar Thermal Panels working

Here in this part, we have provided you with a step-by-step explanation of how solar thermal technology works:

1- Solar collectors:

Flat-plate or evacuated tube solar collectors are installed on rooftops or in open areas with direct sunlight exposure. These collectors are made of dark, heat-absorbing materials that capture the sun’s heat.

2- Heat transfer fluid:

A heat transfer fluid, usually a type of oil or water, circulates through the solar collectors and absorbs the heat energy from the sun.

3- Heat exchanger:

The heat transfer fluid then flows through a heat exchanger, where it transfers its heat energy to a separate loop of water or fluid that is used for heating or hot water purposes.

4- Storage tank:

The heated water or fluid is stored in a well-insulated storage tank, where it can be used when needed for heating or hot water applications.

5- Distribution system:

A pump or circulation system moves the heated water or fluid from the storage tank to the desired location, such as radiators, underfloor heating systems, or hot water faucets.

6- Backup systems:

In case of insufficient sunlight or high demand for heating or hot water, backup systems like gas or electric heaters can be used to supplement the solar thermal system.

7- Monitoring and control:

Sensors and controllers are used to monitor the temperature, flow rate, and overall performance of the solar thermal system, ensuring optimal efficiency and performance.

Overall, solar thermal technology harnesses the heat energy from the sun to provide heating and hot water in an environmentally friendly way. To get more details about Growatt Hybrid inverter dubai, call our technicians.

10 Benefits of using solar panels thermal energy

  1. Clean and renewable energy source
  2. Reduces greenhouse gas emissions
  3. Provides energy independence
  4. Low operating costs
  5. Relatively low maintenance requirements
  6. They are efficient in converting sunlight into usable energy
  7. Can be used for heating water, space heating, and cooling
  8. Helps reduce reliance on fossil fuels
  9. Long lifespan of up to 25 years or more
  10. Increases property value and can qualify for government incentives and rebates

Different types of solar thermal panels

Solar Thermal Panels work

1- Flat panels:

These are the most common type of solar thermal panels used for capturing and converting sunlight into heat energy. They are typically made up of an insulating box with a dark absorber plate inside, which absorbs sunlight and converts it into heat. The heat is then transferred to a fluid (such as water or antifreeze) circulating through the panel via pipes. Flat panels are generally less expensive and easier to install than evacuated tubes.

2- Evacuated tubes:

These panels consist of a series of parallel glass tubes with an absorber plate inside, which absorbs sunlight and converts it into heat. The tubes are evacuated (i.e., the air is removed) to minimize heat loss and increase efficiency. The heat is transferred to a fluid circulating through the tubes via a heat exchanger. Evacuated tubes are more efficient in colder climates and can produce more heat energy per square foot compared to flat panels. However, they are typically more expensive and may require more maintenance.

All you need to know about solar panels’ thermal energy production level

Solar panels use thermal energy production to convert sunlight into electricity. The efficiency of this process can vary depending on various factors, such as the quality of the panels, the angle at which they are placed, and the amount of sunlight available. The thermal energy production level of solar panels can be measured by the amount of heat that is generated and converted into usable electricity. While solar panels have the potential to generate a significant amount of thermal energy, there are still challenges to overcome in terms of cost and efficiency. Overall, solar panels continue to be a promising source of renewable energy with the potential to significantly reduce our reliance on fossil fuels. Check Off grid inverter, in our site.

Most Suitable Applications for Solar Thermal Systems

solar thermo panel


Solar thermal systems are ideal for residential settings looking to reduce energy bills, as well as commercial facilities with high energy demands. The technology is simple to integrate into existing hot water systems, improving efficiency and lasting over twenty years. Components of a standard solar water heating system include solar thermal panels, heat transfer fluid, a coil heat exchanger within a water cylinder, a pump for circulating the fluid, insulated pipes, a system control panel, and a heat flow generation meter.

The solar thermal system, comprised of components such as panels, heat transfer fluid, and a pump, can significantly reduce energy costs by utilizing renewable energy sources. By installing a solar thermal system, households and businesses can enjoy improved efficiency in their hot water systems, ultimately saving money and reducing their carbon footprint. Installation and maintenance of these systems are relatively straightforward, making them a practical and cost-effective choice for those looking to embrace renewable energy solutions.

What size should my solar thermal system be?

The most suitable size for your solar thermal system depends on your household’s hot water demand and usage pattern. As a general guideline, about 1m² of collector per person living in the building is recommended. Most panels are 2m² to 3m² in size, so a small household might only need one panel, while a larger home with four or more people would typically require two panels. It’s important to consider your specific needs and consult with a professional to determine the ideal size for your solar thermal system to ensure efficient and cost-effective hot water production.


Igrowatt, the best energy supplier in Dubai

If you want more information about On grid 5 kw inverter, you can call us. Igrowatt company provides the best quality solar inverter and solar panels. You can contact our expert experts to get prices and information.

5/5 - (1 vote)

Leave a Reply

Your email address will not be published. Required fields are marked *