Not only are these sources of energy nonrenewable and in dwindling quantities, they can also be polluting to the environment. There are other sources of energy, called renewable energy sources, that are abundant and do not damage the environment. Based on information from DOE public information fac sheet. Answer the following questions about the chart on the previous page. Show all conversions.
Solar energy can provide electricity and heat.
While the cost of solar energy has been much more than conventional energy sources in the past, these costs are becoming more competitive. Passive solar energy requires no special equipment and takes advantage of such things as sun shining directly onto a thick masonry wall. Active solar energy requires the use of mechanical collectors to absorb heat and other equipment to store and distribute it. A second type of renewable energy that is becoming more common is wind energy. This source of energy has been around for centuries but has become more popular during the 1980s.