ENERGY!

Renewable vs. Non-Renewable

Non-Renewable Renewable

Defined: Defined:

Examples: Examples :

Limited supply – may run out and will not be replaced in our lifetimes.

May never run out, or it can be replenished in a human lifetime.

Fossil Fuels• Oil (Petroleum)• Coal• Natural Gas

Nuclear

SolarWindWater (hydroelectric)GeothermalBiomass / Ethanol

Humans ;)

Hydrogen Fuel Cells…

Energy Usage In the United States, each person

averages 10,000 watts of energy use continuously

—24 hours per day, 365 days per year

Energy Resources(for electricity)

Coal, natural gas, and nuclear power plants together account for about 90 percent of current U.S. electricity production.

Make a pie-graph with this data:Coal: 49%Natural Gas: 20%Nuclear: 20%Hydroelectric: 7%Petroleum: 1.5%Other Renewables (remainder)

It will look something similar to…

Coal49%

Energy Resources(not just for electricity)

History of Consumption

For the majority of the history of the United States, the predominant fuel source has been wood.

OPEC = Organization of Petroleum Exporting Countries

The use of Coal as a fuel rose in the late 1800’s.

Coal is widely used around the world because:

a. coal is plentifulb. resources are relatively easy to exploitc. coal is easily transportedd. coal needs little refininge. Coal has a high energy density

The drop in the use of coal as a fuel in the 1940s was caused by a rise in the use of natural gas. In 2000, natural gas provided about as much energy as coal.

However… the use of coal is continuing to rise world wide due to the increased use of coal in developing countries such as China and India.

Energy Usage