· There are five major alternative energy sources

· Solar power, wind power, geothermal power, tide power, and hydroelectric power.

· To see definitions for all of these power sources, click here.

· Solar power is becoming very popular as more people are becoming aware of alternative energy, to see more on solar power go to this website.

· Windmills used for wind power are used more often in our communities. To see more on wind power see this website.

· The next alternative energy source, that is not as popular as either solar power or wind power, is geothermal power. Geothermal is a process of using the earth’s heat to conduct electricity; to see more about geothermal energy go here.

· Tide power is also not as popular, but it is becoming more popular near coasts and areas with a lot of water. To see pictures and more information on tidal power see this page.

· The fifth renewable energy source, hydroelectric power, is closely related to the renewable energy source tide power. It is much more popular. To see an animated diagram and more information on hydroelectric power see this web page.