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Eco-friendly Technologies

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Jonas Linke

on 15 January 2014

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Transcript of Eco-friendly Technologies

Eco-friendly Technologies
1.) Wind Power
2.) Photovoltaic
3.) Hydroelectricity
Wind Power
• technically and technologically methods to protect the environment and restoration of damaged eco systems
Main Topics
• disposal
• technical measures for water, -soil, -noise protection
• decrease of air pollution
• efficient use of renewable energies
• registration/monitoring of pollutants & environmental damage

• conversion of wind energy into a useful form of energy
--> wind turbines to make electrical power
--> windmills for mechanical power
--> windpumps for water pumping or drainage
• generation of electricity with wind power stations most important form of use of energy with wind
• no wind --> no energy
• other power stations necessary
• just little place necessary
• profitable
• no emission
• more off shore wind parks --> no noise pollution for population
1.) Defintion/Main Topics
2.)Types of technology
2.1.) Wind Power
2.2.) Photovoltaic
2.3.) Hydroelectricity
3.) Future

method of generating electrical power by converting solar radiation into direct current electricity
• solar rays are striking on a photovoltaic cell, the solar cells, the radiation begins to move the electrons --> thus there is a current conduction
• produced energy --> stored in accumulators or applied to the power supply system
• since 1958: used in aerospace as awning
• usage on Earth: generation of electricity (installed on rooftops, in calculators and in open areas)
• electricity generated by hydropower, most widely used form of renewable energy
• water is moved between reservoirs at different elevations
• times of low electrical demand: excess generation capacity is used to pump water into higher reservoir
• times of high electrical demand: water released into lower reservoir through turbines --> electricity is generated
• very effective, ~90% of water power can be converted to electricity
• usually to be found at big lakes and gorges (Hohenwarte, 3-Gorges-Dam)
• produces much energy
• investing in photovoltaic is a gainful money investment
• regenerative, economic, environment-friendly, clean
• coal, gas and oil are saved --> less greenhouse gas emission
• price of a solar module is rather expensive
• doesn’t produce any energy during night
• temperature optimum --> decreases efficiency if the temperature is beneath or above the optimum
• no CO2 emission --> renewable kind of energy
• flood prevention through reservoir power stations
• produced energy independent from weather and time
• population transfer
• intervention in groundwater regime
• fishes die due to turbines and pumps
• climate-damaging gases when organic depositions decay
Future of this technologies
• Will develop/ get more efficient
• Usage will increase
• Necessary to restore damaged eco systems
• Use of renewal technologies to save natural resources (oil, coal)
Full transcript