Solar Energy Research Paper

1274 Words 6 Pages
I think solar energy would be the most effective energy for the United States to develop. The energy cost has dropped because the technology improved. Although some still argue that solar energy is costly, it is beneficial to the environment because it is efficient, it will not give off harmful gases, and it is easily accessible. Solar energy is powered by sunlight, which converts it into solar heating and electricity. There are two types of solar heating systems, active and passive power; solar energy uses this to make electricity. “The passive solar heating system relies largely on the greenhouse effect and, as noted, traps heat inside a building much as a clos

ed automobile traps heat when parked in a shaded area on a sunny day,” (Mongillo
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“This system can distribute heat more effectively throughout a dwelling because of its pumps and fans,” (Mongillo 42). The Active Solar Heating System requires three difficult solar subsystem steps that explain the process of how to convert energy from the sun in the simplest form (Mongillo 41). The Active and Passive Solar Heating systems have many tools that are involved in the long process, but a solar photovoltaic cell helps to speed up the process (Mongillo 41).
Another type of energy device is solar photovoltaic cell, also known as PV, converts sunlight directly into electricity. In 1954, the photovoltaic cell was founded, scientist found that silicon produced an electric charge while it was in direct sunlight (Mongillo 42). PVs are normally found in calculators and watches to give them power. PVs are usually flat,efficient, and usually found on top of houses to give them power and water. Today, the cost for Solar PVs are very expensive, however, in the future if it becomes affordable, many countries will probably use solar PV’s for
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There are three factors of solar power that work together to power homes and buildings. The visual panel on the roof of a house,the first factor called a Parabolic Trough, uses a mirror to collect the sunlight ( ). It has a mirror panel that receives sunlight and gives energy through tubes near the mirror. The tubes on the side of the panels contain charged liquid heated by the sunlight. That charged energy is sent to a central receiver, or solar tower located in open fields (Union of Concerned Scientists 38). The second factor to make the system work happens at the central receivers or solar towers, located in fields. The towers have the similar mirror panels, called heliostats, that are found on the roofs of the houses. Their job is to receive and change the sunlight to thermal energy, which is powered by a generator (Union of Concerned Scientists 40). The last piece that completes the solar energy process requires a parabolic dish, which uses a saucer to collect the energy ( ) on top of buildings or houses. It gets the sunlight and converts it into energy in the center of the dish ( ). The receiver then uses the sun’s rays to heat the fluids and gases to make electricity for the building (Union of Concerned Scientists 40). Both the parabolic dish and parabolic trough function to get energy from the sun, but in different forms.

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