The natural resources which are consumed/exhausted/depleted through continuous use and can be recovered by very hard efforts taken up for long periods are called Renewable Resources, for e.g. Soils, forests, groundwater etc. In other words we can say that all renewable resources are replenished through natural cycles or manually Jul 23, · Ideas for an Essay on Renewable Energy or Alternative Energy Essay. The natural resources of Earth continue to be used more and more each year throughout the world. Coal and oil, for example, are consumed with incredible speed. 28% of the total energy needs of the world are derived from coal. But coal mines become exhausted Apr 02, · Order custom essay Renewable Energy Persuasive Essay with free plagiarism report. The third reason is that renewable energy promotes energy security of supply and reduces dependence on imported fossil energy. It is widely recognised that explosion would be caused by fossil energy. Obviously,the safety of renewable energy is higher than fossil
Renewable Energy Essay Essay Example For FREE �� - New York Essays
The United States currently relies heavily on coal, oil, and natural gas for its energy. Fossil fuels are non-renewable, that is, they draw on finite resources that will eventually dwindle, becoming too expensive or too environmentally damaging to retrieve. In contrast, renewable energy resources- such as wind and solar energy-are constantly replenished and will never run out. Most renewable energy comes either directly or indirectly from the sun. Sunlight, or solar energy, can be used directly for heating and lighting homes and other buildings, for generating electricity, and for hot water heating, solar cooling, and a variety of commercial and industrial uses.
When this water vapor turns into rain or snow and flows downhill into rivers or streams, its energy can be captured using hydroelectric power. Along with the rain and snow, sunlight causes plants to grow. The organic matter that makes up those plants is known as biomass. Biomass can be used to produce electricity, transportation fuels, or chemicals. The use of biomass for any of these purposes is called bioenergy, essay on renewable resources. Hydrogen also can be found in many organic compounds, as well as water. Once separated from another element, hydrogen can be burned as a fuel or converted into electricity.
Not all renewable energy resources come from the sun. In fact, ocean energy comes from a number of sources. The sun also warms the surface of the ocean more than the ocean depths, creating a temperature difference that can be used as an energy source. All these forms of ocean energy can be used to produce electricity. Do you know what renewable sources of energy are and why we should think of these alternative energy sources? In the past century, it has been seen that the consumption of non-renewable sources of energy has caused more environmental damage than any other human activity. Electricity generated from fossil fuels such as coal and crude oil has led to high concentrations of harmful gases in the atmosphere. This has in turn led to many problems being faced today such as ozone depletion and global warming.
Vehicular pollution has also been a major problem. These sources, essay on renewable resources, such as the sun and wind, essay on renewable resources, can never be exhausted and therefore are called renewable. They cause less emissions and are available locally. Their use can, to a large extent, reduce chemical, radioactive, and thermal pollution. They stand out as a viable source of clean and limitless energy. These are also known as non-conventional sources of energy. Most essay on renewable resources the renewable sources of energy are fairly non-polluting and considered clean though biomass, a renewable source, is a major polluter indoors.
We know where the non-renewable energies — coal, oil and gas — are located and how these fuels are transported, combusted, and the power transmitted throughout the country over the power grid. Because of its location between the Tropic of Cancer and the Equator, India has an average annual temperature that ranges from 25°C — This means that India has huge solar potential. Solar energy has several applications; photovoltaic PV cells are placed on the roof top of houses or commercial buildings, and collectors such as mirrors or parabolic dishes that can move and track the sun essay on renewable resources the day are also used, essay on renewable resources. This mechanism is being used for concentrated lighting in buildings. Photovoltaic PV cells have a low efficiency factor, yet power generation systems using photovoltaic materials have the advantage of having no moving parts.
PV cells find applications in individual home rooftop systems, essay on renewable resources, community street lights, community water pumping, essay on renewable resources, and areas where the terrain makes it difficult to access the power grid. High efficiency cell with concentrators are being manufactured which can operate with low sunlight intensities. India has an expanding solar energy sector; 9 solar cell manufactures, 22 PV module manufactures, and 50 PV systems manufacturers. Therefore, essay on renewable resources, technology resources exist in country and a growing market would lead to job growth in country. By the mid s, essay on renewable resources, the subcontinent was installing more wind generating capacity than North America, Denmark, Britain, and the Netherlands.
The ten machines near Okha in the province of Gujarat were some of the first wind turbines installed in India. These meter Vestas wind turbines overlook the Arabian Sea. Now, inthere is an installed capacity of 4, MW; however, ten times that potential, or 46, MW, exists. vi The capital cost is comparable with essay on renewable resources power plants. For a wind farm, the capital cost ranges between 4. The essential requirements for establishment of a wind farm of optimal exploitation of the wind are the following:.
Wind energy generation has limitations which will influence the extent and type of role it will ultimately play in overall generation of electricity in India. ii Because winds do not blow strongly enough to produce power all the time. Therefore, electricity from wind farms must have a back-up supply from another source. iv Wind towers and turbine blades are subject to damage from high winds and lighting. Rotating parts, essay on renewable resources, which are located high off the ground can be difficult and expensive to repair. v Electricity produced by wind power sometimes fluctuates in voltage and power factor, which can cause difficulties in linking its power to utility system.
vii Some environmental groups have complained about aesthetics and avian mortality from wind machines. The hydroelectric power refers to the energy produced from water rainfall flowing into rivers, etc. Consequently, rainfall can be a good indicator to investors looking for a location to implement or build a new hydroelectric power plant in India. Most hydropower plants are situated in regions of the major rainfall. The most successful forms of biomass are sugar cane bagasse in agriculture, essay on renewable resources, pulp and paper residues in forestry and manure in livestock residues. It is argued that biomass can directly substitute fossil fuels, as more effective in essay on renewable resources atmospheric CO 2 than carbon sequestration in trees.
The Kyoto Protocol encourages further use of biomass energy. Biomass may be used in a number of ways to produce energy. India is very rich in biomass. It has a potential essay on renewable resources 19, MW 3,MW from bagasse based cogeneration and 16, MW from surplus biomass. Currently, India has MW commissioned and MW under construction. The facts reinforce the idea of a commitment by India to develop these resources of power production. Renewable energy technologies are clean sources of energy that have a much lower environmental impact than conventional energy essay on renewable resources. Renewable energy will not run out. Other sources of energy are finite and will someday be depleted.
Most renewable energy investments are spent on materials and workmanship to build and maintain the facilities, rather than on costly energy imports. Renewable energy investments are usually spent within the United States, frequently in the same state, and often in the same town. This means your energy dollars stay home to create jobs and fuel local economies, rather than going overseas. Meanwhile, renewable energy technologies developed and built in the United States are being sold overseas, providing a boost to the U. trade deficit. After the oil supply disruptions of the early s, our nation has increased its dependence on foreign oil supplies instead of decreasing it. This increased dependence impacts more than just our national energy policy.
From tothere was essay on renewable resources, MW of renewable grid-tied power planned, but the actual capacity addition exceeded 6, MW by essay on renewable resources A large share of this was the result of exceptional growth of wind energy in India. Wind energy is expected to add more than 10, MW of additional capacity byfollowed by small hydro 1, MWco-generation 1, MW and biomass MW. In the past five years, the government of India had withdrawn subsidies for grid-tied solar power because its costs were not considered viable. Plans for a MW Integrated Solar Combined Cycle plant at Mathania, Essay on renewable resources were cancelled after an unfavorable essay on renewable resources and commercial review.
But recently this sector has experienced a turn-around, with new technologies and manufacturing capacity in India See Scaling up Solar in India. With the success of grid-tied solar electricity in other countries, and new state-level initiatives for feed-in tariffs, the outlook for this segment is now positive. Financial assistance is available in various forms, such as direct installation subsidy, essay on renewable resources tariffs, tax rebates, and low interest loans. Increasingly Indians are seeing a shift away from subsidizing installed capacity and towards subsidizing power generation with feed-in tariffs and tax rebates.
Essay on renewable resources tariffs are being worked out at the state level. While the new framework for supporting renewable energy generation is evolving, most of the direct subsidy has thus far been designed for installed capacity. Some of the highest direct subsidy rates have been announced essay on renewable resources installation of grid-tied wind and small hydro, and off-grid solar photovoltaic PV projects. See the chart below for more information. Subsidy support is for firms with majority Indian stake.
In the past a significant proportion of allocated funds have gone underutilized, possibly due to lack of availability of suitable projects and procedural delays. One area of concern is the lack of essay on renewable resources projects in bagasse-based cogeneration and urban waste-to-energy space. With maturing technologies and integrated business models in renewable energy business, the suitability of projects is likely to improve, resulting in higher utilization of available government funds and faster market growth. This has been the case of wind energy in India. Integrated installation, operations and repair contracts are common in the wind energy business. This has provided a viable and investor-friendly business model.
Thin-film solar production is expected to lead to the development of PV-based electricity generation. Technologies in the wind, bio-mass, waste-to-energy and small hydro markets are at the venture capitalist stage, waiting for funding to begin commercialization and scaling up of their projects. Policies at state and local levels, like feed-in tariffs, tax incentives, technical training, financing mechanisms and revenue recovery can go a long way in building a successful renewable energy market in India. Improvements in energy efficiency can reduce recurring cost of energy using technology that is often priced even higher than the cost of renewable energy.
This will make investments in this sector attractive. Building renewable energy infrastructure also requires mapping the natural resource base. In a continuing effort to build the information infrastructure for renewable energy, GIS geographic information systems mapping of renewable sources will continue with government funding.
Essay on Renewable Energy - english essay - essay on energy
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Essay Renewable Resources Reflection: Renelierle Resource, Renewable Resources And Nonrenewable Resources. I will prompt class with inquiry-based Renewable Resources For Renewable Energy. Introduction In the most basic definition, energy is power that is harnessed A Study Case For Renewable Importance of Renewable Energy. Renewable resources refer to the source of unlimited natural energy that does not face the threat of depletion from overuse. Natural elements such as the wind, sea, and sun are sources of renewable energy. Today, the world is facing a major energy crisis. The quantity of fossil fuels has dipped dangerously low Feb 10, · 10 Lines On Renewable Energy Essay In English Sustainable power sources are delivered from inexhaustible sources. Several types of renewable energies are produced by different sources such as the sun, wind or water. Solar energy is inexhaustible in the sense that it will cease once the solar
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