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    Add as Friendgreen energy

    by: rama

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    1 :
    2 : Contents Introduction Renewable energy resources Different types of Renewable energy sources Solar energy Day to Day Life Solar energy in various fields Solar Ponds Solar energy in India Wind energy Wind energy in India Water energy & Tidal energy Geothermal energy Biomass Energy Importance of renewable Energy Advantages & disadvantages Recent trends renewable energy sources
    3 : Introduction Basically the energy sources are two types; they are conventional energy sources like coal, petroleum, natural gas etc. & non-conventional or Renewable energy sources like solar cells, fuel cells, thermo-electric generator, solar power generation, wind power etc.
    4 : Renewable energy is derived from natural processes that are replenished constantly. In its various forms, it derives directly from the sun, wind, ocean , biomass or from heat generated deep within the earth. Renewable energy resources
    5 : Different types of Renewable energy sources
    7 : Solar energy Day to Day Life Solar energy is used to meet our electricity requirements. Through Solar Photovoltaic (SPV) cells, solar radiation gets converted into DC electricity directly. This electricity can either be used as it is or can be stored in the battery. This stored electrical energy then can be used at night. SPV can be used for a number of applications such as: a. domestic lighting  b. street lighting  c. village electrification  d. water pumping  e. desalination of salty water 
    8 : Solar energy in various fields Agriculture and horticulture seek to optimize the capture of solar energy in order to optimize the productivity of plants. Green houses like these grow vegetables, fruits and flowers A solar vehicle is an electric vehicle powered by solar energy obtained from solar panels on the surface (generally, the roof) of the vehicle . Solar panels convert sunlight into electricity
    9 : Solar Ponds Solar ponds in action Solar ponds are currently used in Europe, USA, the Middle East and Australia. The heat they produce is used to warm swimming pools and glasshouses and for a range of industrial processes. We get Pure, fresh, potable water from solar ponds We create electricity from the solar pond. A solar pond is a pool of saltwater which acts as a large-scale solar thermal energy collector with integral heat storage for supplying thermal energy. Solar pond ,which is a serious player in the alternative energy stakes .
    10 : Solar energy in India India is one of the few countries with long days and plenty of sunshine. If the means to make efficient use of solar energy could be found, it would reduce our dependence on non-renewable sources of energy and make our environment cleaner. Architecture aims to create environment friendly & energy – efficient buildings. This entails actively harnessing Sun’s energy to do the daily work.
    11 : Wind energy The utilization of wind turbines can be a great way to harness the energy of the wind in a bid to convert this into useable electricity. Wind turbines can be installed as single installations or as part of a wind farm .Areas where winds are stronger and more constant, such as offshore and high altitude sites, are preferred locations for wind farms. The two main types of wind turbines are horizontal and vertical.
    12 : Wind energy in India As of 31 March 2011 the installed capacity of wind power in India was 16078MW, mainly Tamilnadu (6007 MW), Gujarat(2,884 MW), Maharashtra (2310.70 MW), Karnataka (1730.10 MW), Rajasthan (1524.70 MW). India is the world’s fifth largest wind power producer, with a generation capacity of 8,896 MW It is estimated that 6,000 MW of additional wind power capacity will be installed in India by 2012.
    13 : Water energy Water power is power or energy derived from water . Hydroelectric energy is the energy produced by falling water. It is used primarily to generate electricity. In a hydroelectric power station water is stored behind a dam in a reservoir. The water runs down pipes to turn the turbine .The turbine is connected to a generator to produce electricity Hydroelectric plants are more efficient at providing for peak power demands.
    14 : Tidal energy Tidal energy is a form of hydro power that converts the energy of tides into useful forms of power - mainly electricity .Tides are more predictable than wind energy and solar power. A tidal generator converts the energy of tidal flows into electricity. Greater tidal variation and higher tidal current velocities can dramatically increase the potential of a site for tidal electricity generation
    15 : Geothermal energy Geothermal energy  is the energy received from the earth’s natural heat. ‘’Geo’’ means earth. Geothermal energy is thermal energy generated and stored in the Earth. The heat produced inside the earth. is brought to the near-surface by thermal conduction and by intrusion into the earth's crust of molten magma originating from great depth. As groundwater is heated, geothermal energy is produced in the form of hot water and steam. Geothermal energy exists in the form of: 1)Volcanoes 2) Hot Springs 3) Geysers
    16 : Biomass Energy Biomass are all organic materials dead or alive. So Biomass energy is the energy given by either heating or fermenting Biomass. Biomass fuel sources are readily available in rural and urban areas of all developing countries. Biomass-based industries can provide appreciable employment opportunities and promote biomass re-growth through sustainable land management practices. The most common technique for producing both heat and electrical energy from biomass wastes is direct combustion
    17 : Renewable Power Grid Installed in India as on 31.03.2011 Biomass Power Waste to Energy Wind Power Small Hydro Power Solar Power Mega Watt/hour 2664.63 72.48 14155.85 3042.92 35.15
    18 : Importance of renewable Energy 1.It is green and thus reduces pollution and therefore improves our quality of life. 2.It is naturally replenished thus it will not be exhausted contrary to the conventional energy sources which have an expiry date. 3.It reduces our political and financial dependency on traditional non-renewable energy producing countries and multinational corporations.
    19 : Advantages 1. Renewable energies are renewable, or almost infinite sources of energy that are not perishable. 2. It is clean energy, most renewable energies do not negatively effect the environment. (Nuclear energy perhaps being one major exception) 3. The more technology grows, the easier these energies will be able to be harnessed by the individual, perhaps saving lots of money on electric bills 4. Very low maintenance costs, which will make renewable energy affordable for the individual.
    20 : 1. You can’t always rely on a consistent source of energy. (Atmospheric conditions will effect efficiency of renewable sources of energy) 2. Limitations in current technology makes for high start-up costs which significantly reduces the amount of people switching to more renewable sources. 3. Each individual renewable energy source will have its own limitations. (Could be geographical, or atmospheric ) 4. . Technology also limits efficiency of energy. This should be solved with greater research and understanding of the world around us. Disadvantages
    21 : Recent trends renewable energy sources Bio-diesel is the only opportunity for producing a renewable ecological transport fuel for next generation vehicles.. Bio-diesel can be made from any vegetable oil, including Soya, sunflower, canola, and even used cooking oil from fast food restaurants. :
    22 : Thank you
    23 : References: Presented By Swathi . T EEE – 3 / 4 G . Narayanamma Institute Of Technology And Sciences ( for Women), Hyderabad.
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