In addition to these solar cells, there are more green energy possibilities that may be utilized in houses. Instead of solar energy panels on the roof, people can now use solar roofing tiles that look like regular roofing tiles but capture the energy of the sun and direct it to the home. These green energy possibilities can be coupled with a solar powered water heater to help with the hot water supply in the home. Lots of energy is used to heat and supply hot water to the toilets, garments washing machines and kitchen gadgets. This cost can be balanced by a solar water heater which is generally mounted on the roof of the home to capture the daylight. There are other green energy possible choices that are employed in the home. There are outside lighting systems that may run only on solar energy. There are even some indoor lights that will run on solar electricity.