Energy Resources

What is energy?

Energy makes change possible!Energy makes change possible!

The ability to do work. The ability to do work.

Do we use energy everyday?Do we use energy everyday?

Forms of Energy

PotentialPotential

ChemicalChemical

MechanicalMechanical

NuclearNuclear

KineticKinetic

Thermal Thermal

Mechanical (motion)Mechanical (motion)

SoundSound

Electrical EnergyElectrical Energy

Sources of Energy

HydropowerHydropower

NuclearNuclear

WindWind

SolarSolar

Fossil FuelsFossil Fuels

Resources- Renewable vs. Nonrenewable

Nonrenewable- Supplies Nonrenewable- Supplies are limited.are limited.

92% of energy 92% of energy consumed in the US consumed in the US comes from comes from nonrenewable sources.nonrenewable sources.

Oil (petroleum)Oil (petroleum)

Natural gasNatural gas

CoalCoal

UraniumUranium

Renewable- they are Renewable- they are naturally replenished naturally replenished everyday!everyday!

8% of energy consumed 8% of energy consumed in the US comes from in the US comes from this sourcethis source

BiomassBiomass

HydropowerHydropower

SolarSolar

WindWind

What is your energy IQ?

How much do you know about energy? Let’s How much do you know about energy? Let’s take the a quiz to see! take the a quiz to see!

http://205.254.135.24/kids/energy.cfm?page=quiz

Hydropower (hydro electrical)

RENEWABLE SOURCERENEWABLE SOURCE

Relies on the water cycleRelies on the water cycle

Mechanical energy from moving waterMechanical energy from moving water

First hydroelectric plant opened in 1882 in WisconsinFirst hydroelectric plant opened in 1882 in Wisconsin

Most of US hydropower comes from west, such as the Most of US hydropower comes from west, such as the Grand Coulee DamGrand Coulee Dam

Hoover Dam is another famous DamHoover Dam is another famous Dam

Quebec, Canada

Nuclear• NONRENEWABLENONRENEWABLE

Nuclear energy is energy from atomsNuclear energy is energy from atoms

Energy is released from the atoms before it becomes Energy is released from the atoms before it becomes electricityelectricity

Fission- splitting atomsFission- splitting atoms

Fusion- atoms are combined, this is the Sun produces energyFusion- atoms are combined, this is the Sun produces energy

Uranium is used- common metal found in rocksUranium is used- common metal found in rocks

When it is split, it creates heat, which is used to produce When it is split, it creates heat, which is used to produce electricityelectricity

Perry Nuclear Plant, OHIO

Diablo Canyon, California

Wind

RENEWABLE SOURCE- energy from moving airRENEWABLE SOURCE- energy from moving air

Wind is caused by uneven heating- hot air rises Wind is caused by uneven heating- hot air rises (convection)(convection)

Old fashioned windmills are now called wind Old fashioned windmills are now called wind turbines turbines

The fans of the turbine move with the wind, and The fans of the turbine move with the wind, and turn the generator to make electricityturn the generator to make electricity

In the US, only 2% of energy comes from windIn the US, only 2% of energy comes from wind

Solar

RENEWABLE SOURCE- found wherever the sun shinesRENEWABLE SOURCE- found wherever the sun shines

• Solar energy converted to thermal energySolar energy converted to thermal energy

– Heat water, heat spaces, heats fluidsHeat water, heat spaces, heats fluids

• Converted in two ways:Converted in two ways:

– Solar cells- change sunlight directly to electricity. Solar cells- change sunlight directly to electricity. (EXPENSIVE)(EXPENSIVE)

– Solar thermal/electric power plants- solar energy to heat Solar thermal/electric power plants- solar energy to heat a fluid and produces steam that powers a generator. a fluid and produces steam that powers a generator. • 13 plants in the US 13 plants in the US

Fossil Fuel

• NonrenewableNonrenewable

• Oil (petroleum products-gasoline, diesel fuel Oil (petroleum products-gasoline, diesel fuel and propane), natural gas, coaland propane), natural gas, coal

• Come through ground as liquids, gases, and Come through ground as liquids, gases, and solidssolids

• Burn fossil fuels for heat to generate Burn fossil fuels for heat to generate electricityelectricity

Burning Fossil Fuels

U.S. Energy Consumption (2010)• Biomass-4.4% (wood, Biomass-4.4% (wood,

crops, manure, crops, manure, garbage)garbage)

• Hydropower- 2.6%Hydropower- 2.6%

• Geothermal- 0.2%Geothermal- 0.2%

• Wind- 0.7%Wind- 0.7%

• Solar- 0.1%Solar- 0.1%

• Petroleum- 36.7%Petroleum- 36.7%

• Natural Gas-25.1%Natural Gas-25.1%

• Coal-21.2%Coal-21.2%

• Uranium- 8.6%Uranium- 8.6%