1. Start...

2. Power & Energy Technology Energy Sources
Shut off the lights. What if there were no forms of energy. Would you be here now? How did the bus move this morning? Did the lights come on in the house this morning? What about your alarm clock, did it wake you up? If there were no form of energy the world would come to a halt.
Mr. Huebsch

3. Behavioral Objectives
Student will know the 10 sources of energy
Students will understand how we measure energy
Students will get a concept of our current supply and demand of energy
Students will understand our energy flow
Energy Picture
The Future through 2010

4. I. Sources of Energy Renewable Sources Solar (sun) Wind Hydropower
U.S. produces 0.1% and uses 0.1%
Solar collectors PV
Wind
Windmills
Hydropower
U.S. produces 3.7% and uses 2.7%
Falling or Flowing water
Tides
Geothermal
U.S. produces .06% and uses 0.3%
Heating and cooling
Biomass
U.S. produces 3.9% and uses 2.9%
Fermentation (corn fuel, methane)
Burning (wood)
Bacterial Decay (methane from landfills)
Conversion (to gas or liquid with chemicals)

5. Sources of Energy Non-renewable sources Coal
U.S. produces 31.7% and uses 22.8%
Top producing states
WY, WV, KY, PA, TX
Natural Gas
U.S. produces 27.7% and uses 23%
TX, OK, NM, LA, WY
Oil
U.S. produces 18.3% and uses 38.3%
TX, AK, CA, LA, NM
Top importing countries
Saudi Arabia, Mexico, Canada, Venezuela, Nigeria
Nuclear Fuels
U.S. produces 11.4% and uses 8.3%
Uses uranium 235 to produce steam and create electricity
Propane
U.S. produces 2.5% and uses 1.9%

6. Sources of Energy

7. 2. Energy Units Barrel Btu (British thermal unit)
Liquid volume equal to 42 gallons or 159 liters
1 barrel of crude oil has about the same heat energy as 350 pounds of bituminous coal
Btu (British thermal unit)
Our way of measuring heat
Quantity of heat necessary to raise temp. of one pound of water one degree Fahrenheit
Average American uses 889,000 Btu’s daily

8. Energy Units Calorie Watt Metric unit of heat energy
Amount of heat needed to raise the temp. of one gram of water on degree Celsius = .0039Btu
Watt
Unit of measure for electrical power equal to the transfer of one joule of energy per second

9. Energy Units Kilowatt Quad
Measure of power, usually electrical power of heat flow. = 1,000 watts or 3,413 Btu
Quad
Unit for describing very large amounts of energy (1015 Btu)
Energy used by an entire country in a year.
U.S. uses 1 quad about every 4 days
Top three most populated in millions
pop. = 43.2 quads
pop. = 14 quads
288 pop. = 97.4 quads

10. 3. Supply vs. Demand Supply Demand Input to a system (what we Have)
Output to a system (what we need)
Supply and Demand must be equal or problem will arise

11. Supply vs. Demand Demand Sectors (where our energy goes)
Residential and Commercial
Energy used by homes, offices, schools, churches
39.4%
Industrial Sector
Produces goods and products we buy
Manufacturing, Construction, mining, farming, fishing, and forestry.
33.4%
Transportation
Energy uses by cars, trucks, buses, trains, ships, and airplanes.
27.2%

12. Supply vs. Demand 27.2% 33.4% 39.4% Transportation Industrial
Residential and Commercial
39.4%

13. 4. Energy Flow Chart show Input and Output Input = energy resources
Output = demand by sector
Compare old and newer charts

14. Energy Flow Conclusions about Energy Flow Compare old and new charts
If an oil shortage were to exist, the transportation sector would be most affected
When any energy resource is changed to electricity, the total efficiency is less
If a coal shortage were to exist all sectors would be affected except transportation
Society is using 51% of energy and wasting 49%
If N.G. ran short, the residential/commercial and industrial sectors would be affected
If you try to get all the water back in the bucket you can not do it.
Relate to other forms of energy. When you eat a candy bar, you don’t get 100% energy. Some of the candy bar is made into energy and some of the candy may not be used at all.

15. Energy Picture
OIL 2055 – reserves depleted – If consumption stays the same
N.G – depleted – no longer accurate
Coal 2250 – depleted – no longer accurate
Data collected in D.O.E website

16. The Future through 2010 Energy use increases 30%
Overall energy cost will increase 50%
Oil production drops 28%
Coal and N.G. will increase16 & 18%

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