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Transcript of Renewable energy resources
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RENEWABLE ENERGY
RESOURCES
RENEWABLE ENERGY
RESOURCES
BY
KANNAN.P
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contentscontents
• Types of sources• Solar power• Hydro power• Wind power• Biomass• Solar-hydrogen• Geothermal• sustainable energy• conclusion
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Renewable Energy Resources!
Renewable Energy Resources!
• Biomass• Hydroelectric power• Geothermal• Solar—passive and active• Wind generation• Hydrogen power
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Using Solar Energy to Provide Heat and ElectricityUsing Solar Energy to Provide Heat and Electricity
Passive solar heatingPassive solar heatingActive solar heatingActive solar heating
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Using Solar Energy to Provide High-Temperature Heat and Electricity
Using Solar Energy to Provide High-Temperature Heat and Electricity
Solar thermal systems Solar thermal systems
Photovoltaic (PV) cells Photovoltaic (PV) cells
Solar Cell Trade-OffsSolar Cell Trade-Offs
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Producing Electricity from Moving WaterProducing Electricity from Moving Water
Large-scale hydropower Large-scale hydropower
Small-scale hydropower Small-scale hydropower
50% of West Coast electricity50% of West Coast electricity7% of US electricity7% of US electricity20% of World’s electricity20% of World’s electricityMajor environmental impactsMajor environmental impactsHigh construction costsHigh construction costs
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Impacts of hydropower on salmon and other riverine spp. Impacts of hydropower on salmon and other riverine spp.
Pollution Pollution
Disruption of water flow
Disruption of water flow
Loss of biodiversity
Loss of biodiversity
Invasive species Invasive species
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Impacts of hydropower on Species and People_______________Impacts of hydropower on Species and People_______________
Dams can provide many human benefits but:
• Disrupts ecological services rivers provide; e.g. 119 dams on Columbia River have caused a 94% drop in wild salmon; removing hydroelectric dams will restore native spawning grounds
• Displaces millions of people worldwide as reservoirs flood traditional homelands
• No room for expansion in the US
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Producing Electricity from WindProducing Electricity from Wind
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Producing Energy from BiomassProducing Energy from BiomassBiofuelsBiofuels
Biomass plantationsBiomass plantations
Crop residuesCrop residues
Animal manureAnimal manure
Biogas Biogas
Ethanol Ethanol
MethanolMethanol
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The Solar-Hydrogen RevolutionThe Solar-Hydrogen Revolution
Extracting hydrogen efficientlyExtracting hydrogen efficientlyStoring hydrogenStoring hydrogenFuel cellsFuel cells
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Geothermal EnergyGeothermal Energy
Geothermal reservoirsGeothermal reservoirs
Dry steamDry steam
Wet steamWet steam
Hot waterHot water
Molten rockMolten rock
Hot dry-rock zonesHot dry-rock zones
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Geothermal ReservoirsGeothermal Reservoirs
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Creating a Sustainable Energy FutureCreating a Sustainable Energy Future
• Increase fuel efficiency standards for vehicle, appliances, buildings
• Tax and other financial incentives for energy efficiency
• Subsidize renewable energy use, research and development
• Internalize externalities for fossil fuels
• By 2050: – Increase renewable energy to 50%– cut coal use by 50%– phase out nuclear altogether
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Solutions: A Sustainable Energy StrategySolutions: A Sustainable Energy Strategy
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conclusionconclusion
Thus we see about the renewable energy sources , it’s types ,
applications , merits and demerits
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Any queriesAny queries
?
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Thank youThank you