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An Introduction ppt - Saurabh Mehta

Renewable Energy Technologies in Power Generation. An Introduction ppt - Saurabh Mehta. Contents. Introduction Wind Energy Solar Energy. Contents. Introduction Wind Energy Solar Energy. Introduction.

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An Introduction ppt - Saurabh Mehta

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  1. Renewable Energy Technologies in Power Generation An Introduction ppt - Saurabh Mehta

  2. Contents Introduction Wind Energy Solar Energy

  3. Contents Introduction Wind Energy Solar Energy

  4. Introduction • Renewable Energy – “any sustainable energy source that comes from natural environment.” • Some Aspects of Renewable Energy • It exists perpetually and in abundant in the environment • Ready to be harnessed, inexhaustible • It is a clean alternative to fossil fuels • “energy that is derived from natural process that are replenished constantly” -- defined by the RENEWABLE ENERGY WORKING PARTY of the INTERNATIONAL ENERGY AGENCY

  5. Introduction • Contribution of Renewable Energy in World Electricity Production

  6. Introduction • Major Renewable Energy Sources • Hydro Energy • Wind Energy • Solar Energy • Biomass Energy • Tidal Energy • Geothermal Energy • Wave Energy • Bio-fuel • Bagasse

  7. Present Installed Capacity of Renewable Energy Sources in India Source: Ministry of New & Renewable Energy Sources (MNRE)

  8. Introduction Solar Panels Wind Turbine Generators

  9. Contents Introduction Wind Energy Solar Energy

  10. P = 0.5 X ρ X A X V3 P  Power ρ  Air Density (kg/m3) A  Blade Area -turbine (m2) V  Wind velocity (m/s) Wind Energy - Technology • Differential heating of the earth’s surface and atmosphere induces vertical and horizontal air currents that are affected by the earth’s rotation and contours of the land and generates WIND. • A wind turbine obtains its power input by converting the force of the wind into a torque (turning force) acting on the rotor blades. • The amount of energy which the wind transfers to the rotor depends on the density of the air, the rotor area, and the wind speed. • PLF of Wind Farm is normally in the range of 20 % to 30% depending upon the site conditions and WTG rating.

  11. Wind Energy - Technology • Major Components of Wind Turbine

  12. Wind Energy – Present Scenario • Wind Power – Fastest growing renewable energy source • Globally, it grew at the average rate of 27 % pa over the past 10 years. • While in India it grew at the average rate of 33% over the past 9 years. • Presently, India is ranked 4th in the world in terms of Wind Energy Installed Capacity • Drivers of growth • Environmental Awareness and Sustainable Development • Growing Global Energy Demand • Improving Competitiveness of renewable energy • Security of Supply Concerns • New Markets (e.g. India, China etc) • Carbon Trading • Fiscal Benefits by Govt. (PTC, feed in tariffs, etc)

  13. Contents Introduction Wind Energy Solar Energy

  14. Solar Energy - Technology • Solar power is by far the Earth's most available energy source, easily capable of providing many times the total current energy demand. • Solar power is the conversion of sunlight into electricity. • Two main commercial ways of conversion of sunlight into electricity. • Concentrating Solar Thermal Plant (CSP) • Photovoltaic Plants (PV) • CSP and PV both have their markets. PV is very successful in decentralized applications, whereas CSP offers advantages for central and large-scale applications. CSP power plants are the most cost-efficient way to generate and to store dispatch able CO2-free electricity. However, there is no competition between both. Rather, they have to be seen as complementary technologies. • PLF of CSP – In the range of 20 % to 30 % PLF of PV – In the range of 15 % to 20 %

  15. Solar Energy - Technology • Concentrating Solar Thermal Plant (CSP) It contains; • Collector Field • Turbine • Generator • Cooling Tower • Transformer Courtesy: ESP Solar

  16. Solar Energy - Technology • Solar Photovoltaic Plants (PV) It contains; • Solar Arrays • Inverter • Transformer

  17. Solar Energy - Technology • In both CSP and PV technologies, solar resources plays major role. • Maps are available to calculate solar resource of a particular region. However, for both CSP and PV technologies different solar radiations are taken into account. • Basically two types of solar radiations are there; • Global Horizontal irradiations (GHI) • Direct Normal Irradiation (DNI) • For PV technologies GHI is considered. GHI consists of diffuse radiations and direct horizontal radiations (beam). Minimum GHI – 1000 kwh/m2 pa • For CSP, DNI is considered. DNI is the amount of radiation received by a surface which is permanently aligned perpendicular to the incoming beam. Minimum DNI – 1900 kwh/m2 pa

  18. A typical GHI irradiation Map for India which is used to find a feasible site for PV Plant. A typical DNI irradiation Map for India which is used to find a feasible site for CSP Plant. Solar Energy - Technology

  19. The total installed capacity of solar power (Both CSP and PV) as of 2008 is 2826 MW. In India the total installed capacity of solar power is around 2 MW. In India, various government and private players have entered into CSP and PV markets. MNRE has set a target to establish at least 50 MW of solar projects during the 11th plan. Solar Energy – Current Scenario

  20. Welcome to the World of Renewable Enegy....

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