1. RENEWABLE ENERGY SOURCES Environment And Pollution

2. Pelamis Wave Power Pelamis Wave Power Ltd is the manufacturer of a unique system to generate renewable electricity from ocean waves. The Pelamis Wave Energy Converter is a revolutionary concept, the result of many years of engineering development by PWP. It was the world’s first commercial scale machine to generate electricity into the grid from offshore wave energy and the first to be used in commercial wave farm projects. Environment And Pollution

4. For energy companies, utilities and their customers, Pelamis machines offer the ability to unlock an immense clean energy resource with limitless potential Environment And Pollution

5. Biofuel is defined as solid, liquid or gaseous fuel derived from relatively recently dead biological material and is distinguished from fossil fuels, which are derived from long dead biological material. Theoretically, biofuels can be produced from any (biological) carbon source; although, the most common sources are photosynthetic plants. Various plants and plant-derived materials are used for biofuel manufacturing.fuelbiological materialfossil fuelsderived from long dead biological materialbiologicalphotosynthetic plants Environment And Pollution

6. Some cars works with biofuel Enviroment And Pollution

7. Wind power is the conversion of wind energy into a useful form, such as electricity, using wind turbines. At the end of 2008, worldwide nameplate capacity of wind-powered generators was 120.8 gigawatts. Although wind produces only about 1.5% of worldwide electricity use, it is growing rapidly, having doubled in the three years between 2005 and 2008.wind turbinesnameplate capacity gigawatts Enviroment And Pollution

8. In several countries it has achieved relatively high levels of penetration, accounting for approximately 19% of electricity production in Denmark, 10% in Spain and Portugal, and 7% in Germany and the Republic of Ireland in 2008. However, the wind is not easy to predict and matching supply and demand of electricity is difficult. Conventional thermal power stations are still needed to back up the power supply. Most wind power projects are subsidised by government owing to the high capital costs of installationDenmarkSpain PortugalGermanyRepublic of Irelandthermal power stationscapital costs Enviroment And Pollution

9. Environment And Pollution

10. Hydroelectricity is electricity generated by hydropower, i.e., the production of power through use of the gravitational force of falling or flowing water. It is the most widely used form of renewable energy. Once a hydroelectric complex is constructed, the project produces no direct waste, and has a considerably lower output level of the greenhouse gas carbon dioxide (CO2) than fossil fuel powered energy plants. Worldwide, hydroelectricity supplied an estimated 715,000 MWe in 2005. This was approximately 19% of the world's electricity (up from 16% in 2003), and accounted for over 63% of electricity from renewable sourceshydropowerrenewable energygreenhouse gascarbon dioxidefossil fuelMWe Environment And Pollution

13. Geothermal power (from the Greek roots geo, meaning earth, and thermos, meaning heat) is energy generated from heat stored in the earth, or the collection of absorbed heat derived from underground. Prince Piero Ginori Conti tested the first geothermal generator on 4 July 1904, at the Larderello dry steam field in Italy. The largest group of geothermal power plants in the world is located at The Geysers, a geothermal field in California, United States. The Philippines and Iceland are the only countries to generate a significant percentage of their electricity from geothermal sources; in both countries 15-20% of power comes from geothermal plants.undergroundLarderellopower plantsThe GeysersCaliforniaUnited StatesThe PhilippinesIceland Environment And Pollution

14. As of 2008, geothermal power supplies less than 1% of the world's energy. The most common type of geothermal power plants (binary plants) are closed cycle operations and release essentially no Greenhouse gas emissions; geothermal power is available 24 hours a day with average availabilities above 90% (compared to about 75% for coal plants).geothermalbinary plants Greenhouse gas Environment And Pollution

16. Solar energy is the radiant light and heat from the Sun that has been harnessed by humans since ancient times using a range of ever- evolving technologies. Solar radiation along with secondary solar resources such as wind and wave power, hydroelectricity and biomass account for most of the available renewable energy on Earth. Only a minuscule fraction of the available solar energy is used.lightheatSunancient timesradiationwindwave powerhydroelectricitybiomassrenewable energy Environment And Pollution

17. Solar power technologies provide electrical generation by means of heat engines or photovoltaics. Once converted its uses are only limited by human ingenuity. A partial list of solar applications includes space heating and cooling through solar architecture, potable water via distillation and disinfection, daylighting, hot water, thermal energy for cooking, and high temperature process heat for industrial purposes.heat engines photovoltaicssolar architecture potable waterdistillationdisinfection daylightinghot waterenergy for cooking Environment And Pollution

18. A parabolic dish and Stirling engine system, which concentrates solar energy to produce useful solar powerStirling engineconcentrates solar energy Environment And Pollution

20. PREPARED BY ; Altuğ Uludağ 10/A 159 Serkan Özkan 10/A 138 Deniz Kağıt 10/A 14 Environment And Pollution