Today, because of the variety of energy choices and differing goals of their advocates, defining some energy types as “alternative” is highly controversial. There are many alternative sources of energies that harness natural forces and resources such as solar power, wind power, and geothermal energy. [ 29] Commercial fuel synthesis companies suggest they can produce synthetic fuels for less than petroleum fuels when oil costs more than per barrel. Alternatively, mirrors in the shape of a dish can be also used to concentrate the sun’s heat onto a receiver. But at what price is this costing us, our environment. 2012 Alternative Energy Sources In the world today, alternative energy sources are becoming more and more of a necessity. For example, imagine a winter without a heater and a summer without air-conditioning, and day-to-day life without televisions, cars, washing machines, even lights. In order to take advantage of this vast and continuous energy supply, we learned to convert solar energy into forms of energy that we can use for heating and transportation. Even our bodies are made up and made from energy and we can also produce energy but it takes energy to do so. About alternative sources of energy “. This method is called the dish/engine system. Renewable energy sources such as burning biomass are sometimes regarded as an carbon neutral alternative to fossil fuels.
8 trillion watts of power, (Pearce, 2002). Powerful Essays: Alternate Sources of Energy – Energy has become an important aspect of our life. Most hot water geothermal reservoirs are located in the western states, Alaska, and Hawaii. What are Various Sources of Alternate Energy;. Active systems use pumps or fans. Renewable energy sources can be replenished in a short period of time. The emission of carbon dioxide (CO2) and other greenhouse gases (GHG) has become an important issue, Governments and industries are therefore increasingly on the lookout for technologies and alternatives source of energy that will allow for more efficient and cost-effective waste treatment while minimizing GHG. Toyota is leading the pack in terms of producing a usable, affordable Hybrid car. , Q-Cells), this creates a low barrier to entry for companies that want to manufacture solar modules, which in turn can create an irrational pricing environment. Alternate energy sources essaysALTERNATIVE SOURCES OF ENERGYINTRODUCTION :. Biogas digesters are used to process methane gas by having bacteria break down biomass in an anaerobic environment.
Great persuasive essay sample about sources of alternative energy for free. The advantages and disadvantages of the energy source will be discussed, in relation to its technological, economical, viability factors. [ 44] Carbon-neutral fuels offer relatively low cost energy storage, alleviating the problems of wind and solar intermittency, and they enable distribution of wind, water, and solar power through existing natural gas pipelines. Registered office: Venture House, Cross Street, Arnold, Nottingham, Nottinghamshire, NG5 7PJ. The heat can be used to power building systems (such as heat process water) or to produce energy. PV solar energy is perhaps the only energy technology whose electricity generation cost could be reduced by half or more over the next 5 years. Solar cells, primarily made of silicon, absorb sunlight which contains photons, the energy by-products of the nuclear reaction in the sun. For technologies and alternatives source of energy that will allow for more efficient. The earth contains a molten rock called magma.
Solar and wind energy can also have significant benefits for local and national economies from the development of energy-producing industries that create jobs within a country. The solar furnace takes the sunlight from a large area and by the use of lenses and mirrors can focus the light into a very small area. , a solar development company backed by German corporation Siemens, announced that they had developed the world’s most efficient solar panel. We have only really been looking at the possibility of solar power seriously for the past fifty years, and fossil run machines and power plants have been researched for the past century. Wood still remains the most common source to produce biomass energy. It would take about 20 years until enough electricity would be generated to make up for the investment. Dams around the world have been built for this purpose only. It is usually available with other elements and have to separated before we can make use of it.
It is hard to live without Energy, but it is impossible to find another planet to live in. [ 44] Carbon-neutral fuels offer relatively low cost energy storage, alleviating the problems of wind and solar intermittency, and they enable distribution of wind, water, and solar power through existing natural gas pipelines. This requires a high-energy input, making commercial hydrogen very inefficient. They know that the ozone layer has a hole in it which is constantly increasing in size. There are two kinds of solar energy the active solar energy and the passive solar energy. Despite being currently still quite expensive, and showing negative effects to the environment if implemented in a large centralised scale, there is no doubt that solar energy will continue to grow and slowly replace the fossil-fuelled world around it. So why not use them as a power source.
The financial savings of solar-powered homes is an extra benefit for consumers who know that their homes are helping to preserve our environment. Wind is a around all the time and has no limit to it. These heliostats concentrate the heat onto a receiver on top of the towers. The George Olah carbon dioxide recycling plant operated by Carbon Recycling International in Grindavík, Iceland has been producing 2 million liters of methanol transportation fuel per year from flue exhaust of the Svartsengi Power Station since 2011. Apart from wood, the other products that are used to create biomass energy include crops, plants, landfills, municipal and industrial waste, trees and agricultural waste. The nature of what constitutes an alternative energy source has changed considerably over time, as have controversies regarding energy use.
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Several academic programs have focused on solar research in recent years. The sun’s rays are not constant on earth due to weather, location, and season. ALTERNATIVE SOURCES OF ENERGYINTRODUCTION :Biomass is a renewable energy resource derived from the carbonaceous waste of various human and natural activities. They are also used to operate electric dams in areas that cannot be supplied by power lines. Lloyd 1 Alternative Energy Sources Energy is all around us. Additionally, the benefits of algae biofuel are that it can be produced industrially, as well as vertically (i. Due to steadily rising gas prices in 2008 with the US national average price per gallon of regular unleaded gas rising above . Alternative energy sources are readily available, environmentally friendly, and cost effective. It was the first way to convert sunlight directly into electricity. This is one of the energy sources that have been in use for a very long time and for centuries. This requires a high-energy input, making commercial hydrogen very inefficient. [ 33] A 250 kilowatt methane synthesis plant was constructed by the Center for Solar Energy and Hydrogen Research (ZSW) at Baden-Württemberg and the Fraunhofer Society in Germany and began operating in 2010.
[ 27] Recently, alternatives to such undesirable sustainable fuels are being sought, such as commercially viable sources of cellulosic ethanol. The video shows Japan as a country which is educating their people about the risks of keeping the current resources and providing information on renewable energy sources, like solar power. Solar powered objects have started to appear quite commonly in many consumer items such as watches, radios, calculators, rechargeable batteries, flashlights, etc. Most of our other forms of electricity generation are at a lower efficiency than this. 9% of the sunlight that hits it to electricity, more than double the previous high-end conversion rate. Another well-known incident is the BP oil leak in the Gulf of Mexico, which spilled over a million cubic meters of crude oil. Biomass has become one of the most commonly used renewable sources of energy in the last two decades, second only to hydropower in the generation of electricity.
Using solar energy does not imply releasing greenhouse gases into the atmosphere; the energy production process is free from any gas, smoke or other chemical waste. The kill’s two birds with one stone as it decreases garbage levels and creates power at the same time. Many companies are pursuing algae bio-reactors for various purposes, including scaling up biofuels production to commercial levels. Also, the areas where this energy is harnessed are prone to earthquakes and volcanoes. Today, because of the variety of energy choices and differing goals of their advocates, defining some energy types as “alternative” is highly controversial. A third method of concentrating the sun’s energy is through the use of power towers which provide a centralized power supply with the ability to store energy. 2013 Alternative Energy Source: Solar Energy Scientist, researchers, politicians, and economists are interested in creating and establishing an alternative to fossil fuels. [ 115] Much of this research focuses on improving the overall per acre oil yield of Jatropha through advancements in genetics, soil science, and horticultural practices. Thermal storage technologies allow heat or cold to be stored for periods of time ranging from diurnal to interseasonal, and can involve storage of sensible energy (i. Through phase changes of a medium (i.
The solar panels generate “low grade” heat, that is, they generate low temperatures for the amount of heat needed in a day. In the 1970s, President Jimmy Carter’s administration advocated coal gasification as an alternative to expensive imported oil. As every day is more and more difficult to get stamps, some years ago I started a new collection in order to get traditional letters addressed to me in which my goal was to get at least 1 letter from each country in the world. Each of these four segments involve very different technologies and investment concerns. The water vapor then turns into rain or snow and flows down to sea or oceans through rivers or streams. These heliostats concentrate the heat onto a receiver on top of the towers. The latter transfers the solar energy to a heat engine, converting the heat into mechanical energy which drives a generator to produce electricity. Its advantage is that it can be used to generate electricity with the same equipment or power plants that are now burning fossil fuels.
Carbon-neutral fuels are synthetic fuels (including methane, gasoline, diesel fuel, jet fuel or ammonia[ 28] ) produced by hydrogenating waste carbon dioxide recycled from power plant flue-gas emissions, recovered from automotive exhaust gas, or derived from carbonic acid in seawater
Significant generation of offshore wind energy already contributes to electricity needs in Europe and Asia and now the first offshore wind farms are under development in U. No doubt, many terrorist organizations are getting sympathy and support from those who are unhappy about theUnited States military presence in oil-producing Islamic nations. In addition to its projected high yield, algaculture— unlike food crop-based biofuels — does not entail a decrease in food production, since it requires neither farmland nor fresh water. From environmental prospective solar power is the best alternative source of energy. We have past the days of wind-up clocks and toys, foot-pedaled big wheels, and hand-cranked cars. Alternative energy is often referenced as: any energy source that is an alternative to fossil fuel. Solar energy is the oldest type of energy found on earth, as it is as old as the sun.
Due to the predicted shortage of fossil fuels and other non-renewable energy sources, research is now looking at alternatives. Terms of Service | Privacy. From environmental prospective solar power is the best alternative source of energy. [ 37] Other commercial developments are taking place in Columbia, South Carolina,[ 38] Camarillo, California,[ 39] and Darlington, England. This process is known as biological hydrogen production. Wood still remains the most common source to produce biomass energy. Solar-powered devices rely on the steady delivery photon to keep the electricity generating process going, as discussed previously. Alternative Energy Essay by Shannon Roselli.
It is grown in tall cylinders, and then cut in thin segments. As every day is more and more difficult to get stamps, some years ago I started a new collection in order to get traditional letters addressed to me in which my goal was to get at least 1 letter from each country in the world. Just like the geothermal and solar energy, which have long been used in heating homes and lighting as well when harnessed. It does not take away or directly conflict with the food supply because it is produced from wood, grasses, or non-edible parts of plants. In the second sense, biomass includes plant or animal matter that can be converted into fibers or other industrial chemicals, including biofuels. Another idea is the “solar farm. Alternative Energy Sources In our homes, at our workplaces, and in our leisure, humans.
For instance, in the river Niger Delta, an ongoing irresponsible and excessive oil extraction can be witnessed. [ 96] The NREL wind projects are centered on improving wind plant power production, reducing their capital costs, and making wind energy more cost effective overall. On the Federal level, the USDA conducts a large amount of research regarding ethanol production in the United States. After the initial cost is covered, the customer is still saving thousands of dollars in utilities compared to electricity and gas usage. It is hard to live without Energy, but it is impossible to find another planet to live in. By the end of 2008 there were 35,000 filling stations throughout Brazil with at least one ethanol pump. Thorium is a fissionable material used in Thorium-based nuclear power. This is one of the energy sources that have been in use for a very long time and for centuries.
That reasons also supports the conservation program of the major energy that is most used today, petroleum, oil and gas and other natural resources that are limited in amount and cannot be renewable. Historians of economies have examined the key transitions to alternative energies and regard the transitions as pivotal in bringing about significant economic change. Each of these four segments involve very different technologies and investment concerns. Essays from BookRags provide great ideas for Future energy development essays and paper topics like Essay. The Hybrid car would solve these problems and decrease the pressure on the ozone layer. A third method of concentrating the sun’s energy is through the use of power towers which provide a centralized power supply with the ability to store energy. Alternative Energy Essay by Shannon Roselli. With the current consumption rate of non-renewable energy, this scenario may very well be the state of the planet in future years.
However, as solar energy becomes more and more competitive due to shortages facing other sources of power, prices are expected to come down
Several entities, such as the National Renewable Energy Laboratory[ 119] and Sandia National Laboratories[ 120] are conducting research toward the goal of establishing a proven science around geothermal energy. Today, because of the variety of energy choices and differing goals of their advocates, defining some energy types as “alternative” is highly controversial. More recently, they have powered small electric generators. 5 EJ), about half of which is already harvested as agricultural crops and forest products. Wind energy research dates back several decades to the 1970s when NASA developed an analytical model to predict wind turbine power generation during high winds. This is commonly know as wind farms and has been in use for many years all round the world. Also, the areas where this energy is harnessed are prone to earthquakes and volcanoes.