Power To The People#1

812 views
699 views

Published on

Where does our electricity come from?

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
812
On SlideShare
0
From Embeds
0
Number of Embeds
52
Actions
Shares
0
Downloads
19
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Power To The People#1

  1. 1. Power To The People How Power Plants Make Electricity
  2. 2. When a coil of wire is wrapped around a metal post and it spins next to magnets, it creates a flow of electrons called an electric current. This turbine generator is at the heart of any electric power plant. The turbine can spin by using the momentum of moving water, wind, steam or other mass.
  3. 3. Electric motors are built like turbine generators, but instead of being pushed to spin, they use electricity to spin and do work.
  4. 4. Wind Turbines • Spin a turbine generator to make electricity. (Image Credit: njcleanenergy.com)
  5. 5. Hydro Power Plants • Use moving water to spin the turbine. (Image Credit: esd.ornl.gov)
  6. 6. Coal, Oil, Natural Gas, Wood, and nuclear power plants all heat water, and pressurized steam spins the turbine. (Image :eas.asu)
  7. 7. Nuclear Plants use “hot” radioactive isotopes, which give off enough heat to turn water to steam to spin a turbine generator. (Image: NRC.gov)
  8. 8. Solar Concentrators Solar concentrators focus sunlight to heat water to produce steam, to spin a turbine generator. Image Credit: solarpanelsdot.com
  9. 9. What are the advantages of each of the following electrical energy Sources? Advantages Disadvantages Wind Hydro Fossil Wood Biomass Nuclear Solar
  10. 10. What are the advantages of each of the following electrical energy Sources? Advantages Disadvantages Wind : no pollution Aesthetics(?), Intermittent Hydro : no pollution, consistent Flooding habitat Fossil : existing CO2, H2O produced, nonrenewable Wood : renewable, use waste CO2, H2O produced Biomass: renewable, use waste CO2, H2O produced Nuclear : no air pollution water pollution, radioactive waste for 500,000 years, terror target Solar : no pollution, renewable dependent on clear weather
  11. 11. The End

×