Solar hot water is created by using energy from the sun and converting it to electricity to heat the water for your house. The first recorded use of solar hot water was in the ninteen twenties in Florida and Southern California. Spain requires people to use solar hot water. Australia also requires the use of solar hot water in new construction. You can find alot of information online about solar power and its many uses. Solar energy is efficent and alot better for the enviroment. Solar energy can be used and stored for long days and for when the sun is not out, during the night or times of storms. The use of eveacuated tube solar hot water makes it easier to keep your water warm when it is cold outside and/or cloudy outside. You can find information on solar hot water panel and solar hot water panels online and you can even find out how to do an install online.