Solar thermal is a technology that captures sunlight to produce heat. This heat can be used for various applications, such as heating water for residential use, swimming pools, or even for industrial processes. Solar thermal systems typically consist of solar collectors, which absorb sunlight, and a heat transfer system that moves the collected heat to where it is needed. There are different types of solar thermal systems, including flat-plate collectors and evacuated tube collectors. These systems are often used in conjunction with solar photovoltaic systems, which convert sunlight into electricity, to enhance energy efficiency and reduce reliance on fossil fuels.