2011 Project Lead The Way Inc Gateway Energy and the Environment Exhaustible Any source of energy that is limited and cannot be replaced when it is used such as oil coal and natural gas ID: 476956
Download Presentation The PPT/PDF document "Energy Sources" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
Energy Sources
© 2011 Project Lead The Way, Inc.
Gateway – Energy and the EnvironmentSlide2
Exhaustible Any source of energy that is limited and cannot be replaced when it is used, such as oil, coal, and natural gas.Slide3
Exhaustible Energy SourcesLimited availabilityCannot be replacedCurrently provides 85% of energy consumed in USExamplesFossil fuels - fuels produced by deposits of ancient plants and animals (Oil, coal and natural gas)Slide4
Exhaustible Energy SourcesEffect on the Environment Burning fossil fuel produces air pollutionAcid rain is rain contaminated by the by-products of combustion which condense in our atmosphere. Acid rain kills plants and trees and pollutes ponds and lakes, killing fish and altering the ecosystem.Air pollution can cause lung cancer in humans. Slide5
Exhaustible Energy SourcesEffect on the EnvironmentGreenhouse effect – Greenhouse gases surround our planet, which prevents heat produced by the sun from escaping the earth’s atmosphere as easily as it once did.The greenhouse effect leads to climate change, which could cause melting of ice caps and changing weather patterns.Slide6
Renewable A resource that can be replaced when needed.
©iStockphoto.com
©iStockphoto.com Slide7
Renewable Energy SourcesEthanol – Plants such as corn, soybeans, seaweed, sugar beets, and sugar cane can be used to make ethanol.Methanol is made from coal or renewable sources like wood, plants, and manure.Methanol and Ethanol can be used as a substitute for gasoline.Slide8
Renewable Energy SourcesBiomass – Waste products like trees, plants, grains, algae, manure, garbage, sewage, and paper can be converted into energy.Biomass conversion creates petroleum substitutes and methane gas.Slide9
Renewable Energy SourcesEffect on the EnvironmentSubstituting biomass for fossil fuels reduces emissions of greenhouse gases.Combustion of biomass produces air emissions. The amount of emissions varies widely depending upon the technology being used.Slide10
Inexhaustible An energy source that will never run out.Currently provides 3.5% of energy consumed in USSlide11
Inexhaustible ExamplesSolar energyHydroelectric Energy Geothermal Energy Wind Energy Slide12
Inexhaustible Energy SourcesEffect on the EnvironmentMinimal pollution or hazardous waste producedReadily available, without mining or drillingSlide13
So Why Don’t We Use More Renewable and Inexhaustible Energy?Renewable energy tends to be far away from where the electricity is needed, it has to travel far Renewable energy impacts the environment because of the amount of land it uses Many renewable resources are limited and are not always available when the electricity is needed (example: No sunlight at night for lighting homes and businesses).Slide14
Draw and Color These Diagrams on Page 33 of your NotebookRenewable Energy