Solar water heating systems comprise several innovations and many mature renewable energy technologies that have been well established for many years. SWH systems are designed to deliver hot water for most of the year. However, in winter there sometimes may not be sufficient solar heat gain to deliver sufficient hot water. In this case a gas or electric booster is normally used to heat the water. Hot water heated by the sun is used in many ways. While perhaps best known in a residential setting to provide domestic hot water. Designs suitable for hot climates can be much simpler and cheaper, and can be considered an appropriate technology for these places.
Some features of Solar water heaters are :
Some advantages of Solar water heaters are highlighted below: