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energy is energy generated from resources that are naturally refilled on a human timescale such as rain, geothermal heat, waves, sun, and wind (Harvey and Brown 41).
The cost of generating hydropower is low making it the most preferable source of the world’s renewable energy. Further, hydroelectric plants are said to have long economic lives with some plants having the ability to be in service for over 50 years. The cost of operation is not high since plants are automated and have few people on site during normal operations. In addition, hydro energy is more flexible source of power or electricity because plants can be ramped or inclined up and down to adapt to transforming energy needs. Once a hydropower dam is constructed, the project generates no direct waste to the ecosystem and has low production of greenhouse gases than fossil fuels (Somma 46).
It is vital to note that many nations recommend energy sources such as hydropower, wind and sun because they do not emit any harmful chemicals and gases such as carbon dioxide and it is not a major contributor to global warming via carbon dioxide. Energy source such as hydropower is a renewable source of energy or power because rivers and streams are naturally available. Further, hydropower is not expensive as compared to energy produced from nuclear energy or fossil fuels. The advantage of hydroelectric reservoirs is that they are able to tackle daily, seasonal, and peak loads. For instance, when the demand of electric falls, the reservoirs or dams store water while some installed electricity generators are used to store excess energy (Harvey and Brown 33).
Biofuel production revolves around the fact that biofuel is a renewable source of energy. Biofuels have a source material and unlike oil, which often takes thousands of years for the fossil fuels to be produced, the biofuels are renewable because new crops can often be grown and the waste material collected for production of oil. Biofuel production has helped
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Renewable energy is the energy that is generated from such natural resources as wind, rain, sunlight, geothermal heat and tides that can be replenished naturally. Approximately 16% of all energy that was consumed in the world was generated from these renewable sources. 3% came from new renewables like small hydro, wind and bio fuels
The essay describes main renewable energy sources - wind energy, solar energy, geothermal energy, hydroelectric power, and biomasses. The shortage of fossil fuels is a great problem now, therefore it also analyzes the problems and disadvantages of renewable energy sources usage and if they can be used in order to replace the older ones.
The types of renewable energy include solar, wind, hydroelectric and wave power. Introduction Energy is the main driving force of nature and human civilization. The world is even known to have a high level of energy consumptions which even increased during the industrial revolution.
Arguably, energy is an indispensable prerequisite for causing change or performing work. Renewable and none-renewable forms of energy are the two known forms of energy that have been in use for century. The none-renewable energy source is the natural energy source that is in limited supply.
The recent issue of the Independent newspaper states, that 'British people waste more energy than the inhabitants of any other major Western European nation, hastening climate change and adding 2.5bn to annual fuel bills according to research'. (Hickman, 2006) It means that for Britain the problem of developing the renewable sources of energy and the technologies for their domestic use acquire special meaning and should be thoroughly considered.
2. Assess the suitability of the most appropriately oriented part of your roof for installing a solar water heater. How will this affect the performance of the proposed solar water heaters (If you live in an apartment with a flat roof I guess you'll have to pretend that you live on the top floor!
been going to replace silica with a mixture of other cheaper elements thereby providing us with a low cost alternative to silica based photovoltaic panels. Moreover solar powered homes can sell the extra electricity back to grid at a good price. The use of solar energy also
ught about by the continuing increase in levels of greenhouse gases at unprecedented pace, scientists all over the world drastically made efforts to inform the international organizations in charge of environmental protection, and to focus on measures to utilize renewable