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1. Alternative Energy Resources Essays
The energy that is used today comes from fossil fuels, which is a nonrenewable limited resource that will eventually be used up. Alternative energy
sources such as solar, hydroelectric, geothermal and wind energies can be used, to conserve the planets limited natural resources. Alternative energy
is the use of another energy without the burning of fossil fuels and break up on atoms. Solar energy can be used to operate cars and provide
electricity for homes and businesses. Hydroelectric energy can be used to provide electric power to small towns and cities. Geothermal energy can be
used to heat buildings or water and to power turbines to make power. Wind energy can be used to pump water and generate electricity. Solar energy is of
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The most common type of hydroelectric power comes from using a dam on a river or lake. Water is discharged from the reservoir, which spins the
turbine, which activates a generator to get electricity. Hydroelectric power does not require a large dam. Some hydroelectric power plants just use a
small canal to channel the river water through a turbine. (Union of Concerned Scientists) Third, geothermal energy is heat from the earth that is used
directly as hot water or steam, or used to produce electricity. Geothermal energy is contained in underground reservoirs of steam, hot water, hot dry
rocks and hot spots. Geothermal hot spots are volcanic features which are found all around the world. Basically a hotspot is an area of reduced
thickness in the mantle which transmits excess internal heat from the interior of the earth to the outer crust. These hot spots are well known for their
unique effects on the surface, such as the volcanic islands of Hawaii, the mineral deposits and geysers in Yellowstone National Park, or the hot springs
in Iceland. These geothermal hot spots can easily be used to generate electricity. (Alternative Energy Sources)
They are used at electric generating facilities, hot water or steam extracted from geothermal reservoirs in the Earth's crust is supplied to steam turbines
at electric utilities that drive generators to produce electricity. Moderate to low
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2. Alternative Energy Essay
Every day, many fossil fuel consuming contraptions spew out gases that pollute the environment. However, when the fuel supplies for these devices
run out, they will grind to a halt. To prevent this, the United States needs to find an alternative to unstable and polluting energy sources before it's too
late (Rouge). It also needs to advance in technological status in order to stay above advancing third–world countries, and retain its current level of
hegemony (Glaser). Space Based Solar Power Satellites, which are satellites that collect the sun's energy and beam it down to the Earth, solve for all
these concerns (Rouge). Thus, the United States Federal Government should provide grants for research, development, and implementation of Space
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In other words, even though other energy sources could solve the energy crisis, none boast the advantages and flexibility that Space Based Solar
Power can provide. For example, Solar Power Satellites are extremely useful to the military, as they are capable of beaming energy down to any
location on the world, and are able to support military operations all over the world. People may argue that the United States does not have the
technology to develop Space Based Solar Power, and that it will never get into space (Mankins). However, the technology required is already
available. According to Rouge, "Space Based Solar Power is a complex engineering challenge, but [it] requires no fundamental scientific
breakthroughs or new physics to become a reality (Rouge)." If the United States is to prepare for a future energy crisis, it must act now and begin
development on Space Based Solar Power.
The United States is currently the most powerful nation in the world due to its economy and technological dominance, but may not stay in that position
for much longer if the United States doesn't substantially increase the money being spent for research and development of new technologies. Every
year, more and more countries pour money into research, and they begin to develop technology that rivals that of the United States, which reduces the
United States' technological
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3. Alternative Sources of Energy Essay
As the population continues to increase day after day, so does the demand for oil and other natural resources. Eventually we will get to a point where
we will need to find different ways of efficiently producing energy at a low cost. Twenty to thirty years ago it was hard to imagine what sources of
energy (other than obvious possibilities like solar panels and windmills) that could efficiently supply the world. The advancement of technology today
is opening new doors in the energy field that are likely to change the way we think about energy. With so many different sources of energy that are
prevalent around the world, the challenge is found in harvesting and securing the energy at its source, and doing so in an efficient...show more content...
Clearly there are many difficulties that would have to be addressed including maintenance, air space issues, safety, etc, but flying wind farms are a
potential source of future energy. wind.png Another form of energy that could become very useful and resourceful in the near future is the
transformation of human waste into energy. An article by Janet Zimmerman describes a process being developed by an engineering firm named UC
Riverside. The new process "uses heat and pressure to turn human waste into clean energy," saving millions of dollars and reducing pollution in the
process. This idea has the potential to change the energy industry since there will never be a shortage of human waste. The first step of the process
"pumps a combination of municipal sewage, sawdust and water into a pressurized reactor that is heated to almost 1,400 degrees." (Zimmerman). A
senior development engineer with UC Riverside, Junior Castillo, explained that the extreme heat transforms the mixture into different gasses like
carbon dioxide, methane, and carbon monoxide. In the later stages, these gasses are converted into substitutes for natural gasses. The goal is to
eventually use the gas product to heat the reactor to increase efficiency. Although this process is still under development, they plan to have a
functioning plant running within the next five
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4. Alternative Energy Essay
Alternative Sources for Energy
Millions and millions of barrels of oil, coal, and natural gases are being pumped out of the ground on a daily basis. These fuels are being used to
heat homes, run machines, and take people from place to place. It has become a part of everyday living; just as essential as food and water. The
more resources that is being pumped, the more people want it. Society has an insatiable thirst for this form of energy that is unyielding. It is a never
ending cycle of supply and demand. The demand is high, but the supply is limited. One day the earth will be sucked dry of all its resources, yet
people will continue to demand. What will happen then? What will take place of the current resources? Due to this crisis,...show more content...
This concept of solar energy can also be used in refrigeration systems as well. An adsorption chiller has been manufactured that can achieve
temperatures of 0ВЎГ†F (Henkel, pars.41). Solar energy has enormous potential in reducing gas usage in homes. In fact, one day it may even replace
any need for gas at all.
Solar energy has its functions; however, it is not the only alternative energy source. Wind can be transformed into practical energy as well.Wind power
is one of the fasting growing sources of energy and it doesnВЎВЇt seem to be slowing down. As technology advances, wind turbines are getting bigger
and more efficient. A wind turbine in the United States has a 104 meter blade producing 3.6 megawatts of electricity (Talbot, pars.2). The blade span
alone is longer than a football field and generates enough power for 1,000 homes. General Electric is currently attempting to design an even bigger
wind turbine with a blade span of 140 meters and could produce as much as 7 megawatts according to Jim Lyons, chief technologist at GE wind.
Although there is potential to tap into a vast amount of energy, it is not 100% reliable. Wind is not guaranteed to be always blowing and with these
huge turbines, if one fails many users will be affected until the problem is fixed (Talbot, pars.4). Furthermore, there is no guarantee for the amount of
energy produced due to constant changes in directions of the wind, which in turn affects the
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5. Alternative Energy Sources
Alternative Energy Sources
"In United States around half of million deaths each year are attributed to air pollution. It is estimated that air pollution each day kills three people in
the city of Hong Kong. Air pollution also contributes to soil and water pollution. More than 15,000 people in the world die each day because of water
pollution" (pollutionfacts.com). With these statistics, it is no wonder people are coming up with alternative energy sources. From energy to gasoline,
there are many different ways to reduce these statistics. Some alternatives to energy sources are solar and wind power, alternative vehicle fuels and
hybrid cars. Photovoltaic solar electricity, or more commonly known as solar power, is an alternative energy...show more content...
"There is considerable interest in electric and hybrid cars because of environmental and climate change concerns, tougher fuel efficiency
standards, and increasing dependence on imported oil" (Deal). Hybrid and electric cars are a way to reduce our carbon footprint. Many vehicle
manufacturers are beginning to jump into the hybrid car craze. Some of the most popular hybrid cars are the Toyota Prius, Honda Insight and Ford
Fusion. There is also the electric car that relies solely on electricity to get from point A to point B. the downside to these cars however is that they
only get about 100 miles before needing to be recharged. Hybrids are different because they rely on a mixture of two sources, electricity and
gasoline. Hybrids can get further than electric cars because of this reason. Electric and hybrid cars have a special braking system called regenerative
braking. Regenerative braking causes the car to recharge the battery whenever the car is coasting or completely stopped. this helps maintain the car's
battery life. Charging these batteries can take a while, some even take more than eight hours!
While the popularity of hybrids and electric vehicles are on the rise, many people still drive a good– old fashioned gasoline car. Whereas driving a
normal car will not be as environmentally friendly as the hybrid of electrics,
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