For example, a house may be built to direct the sun onto a thick masonry wall that then stores the heat for later distribution. Active solar systems require the use of mechanical collectors to absorb the heat of the sun. This energy is then stored or distributed using fans, pumps, or other equipment. Wind Energy is another type of renewable energy source with much potential. Wind is produced as the sun heats the air.
Warmer air rises and cooler air sinks.
This air motion is the wind. Windmills were used until the late 1930s to produce electricity. Today's wind turbines look like airplane propellers and can be used to generate energy in areas with steady winds that average at least 12 to 15 miles per hour. Louisiana, therefore, is not an area that can produce much wind power. Hydropower is created by the flow of water.