Energy Resources.

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Presentation transcript:

Energy Resources

Where does our electricity, heat, and fuel come from?

Nonrenewable Resources Resources that are used up more quickly than they can naturally be replaced.

Non-Renewable -examples

Renewable Resources Any natural resource that is recycled or replaced constantly by nature.

Renewable Resources -examples

U.S. Energy Use Totals 2009

Make electricity by turning a generator

Fossil Fuels the fuel is burned to boil water to make steam the steam makes a turbine spin the spinning turbine turns a generator which produces electricity the electricity goes to the transformers to produce the correct voltage

Fossil Fuels (Oil, Coal, Natural Gas) Advantages Inexpensive Currently widely available Disadvantages Non-renewable Polluting Dangerous to mine (coal)

Nuclear Energy

Nuclear Energy Advantages Disadvantages Less polluting than fossil fuels Provides a great amount of energy inexpensively Disadvantages Non-renewable Radioactive waste (dangerous)

Solar Energy

Solar Energy Advantages Disadvantages Non-polluting Inexhaustible Expensive technology Must have sunny area

Wind Energy

Wind Energy Advantages Disadvantages Non-polluting Renewable Visual pollution (large windmills) Windy area needed

Hydroelectric Energy

Hydroelectric Energy Advantages Disadvantages Non-polluting Renewable Flooding (destroys land/habitats) Destroys fish migration routes

Geothermal Energy

Geothermal Energy Advantages Disadvantages Non-polluting Inexhaustible Costly to dig deep into Earth

Biomass –garbage, wood

Biomass Energy Advantages Disadvantages Quick to replace Renewable Inexpensive Disadvantages Pollution produced when products are burnt

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