Solar hot water is a way to use the energy from the sun to make hot water. Solar energy is free and better for the environment than using energy from burning fossil fuels. It works by using solar panels to collect energy from the sun. The energy from the sun is converted into heat which is used to heat up the water in a tank. It is called solar hot water because it uses the power of the sun to heat the water. Every day, the sun provides enough energy to heat the water in the tank so it is always warm and ready when you need it.