Solar Thermal – Solar Thermal Panels

solar thermal - a greener alternative

In a time when renewable energy and environmental protection are becoming more and more vital, solar thermal water heating is becoming more and more significant. 

Let’s examine the benefits of solar thermal energy in more detail:  

  • They are very effective at capturing heat from the sun.  

  • The actual technique is extremely simple. 

  • the ideal method for warming water.  

  • They are also very valuable to enterprises. 

With solar thermal technology, sunlight is captured, converted to heat that is then stored, and finally converted into electricity as the name says.  

The low maintenance of solar thermal systems is well recognised, especially when compared to traditional heating systems like gas or oil. To ensure that a solar thermal hot water system operates well and without issues, simple maintenance is advised. In this article, we go over some of the annual maintenance procedures for a solar thermal system.   

What is the mechanism of solar thermal energy? 

Although the fundamentals of solar thermal technology are quite simple, building a system that effectively absorbs solar energy and converts it to hot water requires cutting-edge technology. The initial step in this process, which converts solar energy into a usable resource, is the installation of solar panels. 

Domestic solar thermal hot water systems function by capturing solar radiation through collectors on the roof. The fluid that is circulated through a sealed circuit, past the collectors, and into a coil inside a specially-made hot water cylinder is heated by this energy. After that, the hot water is kept in the cylinder until it is required. 


What Is the Process of Solar Thermal Panels? 

Solar thermal panels, also known as solar collectors, are fixtures that are put on your roof and use solar energy to heat water that is kept in a cylinder. Water and antifreeze are both present in the fluid that is passing through the panels. These technologies are mostly used for space and water heating.  

Similar to solar PV, solar thermal panels perform best on south-facing roofs, though they can also be used on south-west and south-east-facing rooftops. Additionally, if the roof is unsuitable, you can install it on the ground as long as it receives direct, unobstructed sunshine. 


Solar thermal panels come in two primary categories: 

  • These objects, known as flat-plate collectors, resemble solar PV panels in appearance. A fluid that transfers heat from the absorber to a water tank makes up the majority of its components, along with a dark absorbing surface, a transparent cover, a heat-insulating backing, and a back. Steel, copper, aluminium, polymers, or other metals can all be used to make the absorber. The most costly conductor is copper, which is also the best and most resilient. 

  • Evacuated (or vacuum) tube collectors: unlike solar panels, these collectors are made up of several glass tubes through which the transfer fluid flows. These systems are more efficient than flat-plate panels, especially in cold climates, but lose efficiency in warm weather due to the risk of overheating. That is because vacuum tubes avoid heat loss, while flat panels tend to lose some heat. The evacuated tube structure, with gaps between the tubes, allows snow to fall down and thus minimises its impact on efficiency since the lack of radiated heat makes it impossible for the snow to melt. 


How to care for solar thermal equipment

There are various reasons why homeowners like Solar Thermal Panels. First, the systems use free solar energy that is available to them to heat water. Second, a solar thermal system can substantially lower a family’s fuel expenses. Thirdly, because solar thermal maintenance is straightforward, there is little need for intervention when it comes to servicing and maintaining it. 


What you’ll need to use solar thermal in your home: 

  • In order to install solar panels, you will need a position that is acceptable for the panels themselves as well as a location for a special solar cylinder that has the technology required to convert the solar energy captured into useful heating energy for your hot water. 

  • The solar system needs to get enough sunlight to function consistently. Solar energy can be captured all year long, contrary to popular belief that it can only be done during the summer. Shade from trees and buildings, however, will significantly reduce a solar collector’s efficiency, thus it should be avoided to maintain a solar collector’s efficiency. 


 Here at a Greener Alternative, we can guide you through the process and ease any fears or apprehensions that you may have with Solar thermal panels by selecting what is best for you.