What is a solar thermal system?
Solar thermal is a renewable energy source that uses the sun’s energy to heat water for use in kitchens and bathrooms. Capable of meeting around 50 per cent of a UK property’s annual hot water demand, solar thermal systems deliver significant annual savings, which will only increase if energy prices continue to rise.
Solar thermal energy is harnessed from roof-mounted tubes or panels called solar collectors, with the hot water generated stored in a large cylinder or tank until needed. Solar thermal is different to Solar PV (PhotoVoltaic), which is designed to generate electricity.
Whilst electricity from solar PV systems can be used to heat water, solar thermal systems are more efficient, needing less roof space to generate the same amount of energy. That’s why some properties use a combination of solar thermal and solar PV systems.