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Understanding Energy, Power, and Electricity Generation

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emerald-mills
25 diapositives · 395 Views · Nov 18, 2014

Discover the fundamental concepts of energy, power, and electricity in this informative guide. Learn the definitions of energy and power, how they are measured, and the laws governing them. Explore various electricity generation methods, including hydro, wind, thermal, geothermal, and solar power. Understand how energy is quantified in Joules and kilowatt-hours, and see practical examples of energy consumption. This overview will equip you with a better understanding of how electricity is generated and its significance in our daily lives.

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  1. Electricity Generation- energy & power

  2. What is energy? What is power? What is electricity? How is electricity generated? Today we will learn …

  3. What is Energy ? … What is Power ??? Energy is what makes things happen! • Electricity is a very useful type of energy that we use every day to make things happen. Power is (basically) how fast energy is used. • We can use energy quickly, or we can use it more slowly.

  4. Energy & Power. Energy is what makes things happen. Measured in Joules (or Calories). Law of Energy (energy can neither be created or destroyed, it can only be transformed). Power is how much energy is transformed in 1 second. Measured in Joules per second, Watts or kilo-Watts. Electricity industry measures and charges for energy in kilowatt hours (kWh).

  5. Example Toaster: Power rating = 2 kW Time on = ¼ hour Energy used = 2 x ¼ = 0.5 kWh Light bulb: Power rating = 100 W = 0.100 kW Time on = 5 hour Energy used = 0.1 x 5 = 0.5 kWh

  6. Electricity is … a type of energy

  7. Where does our Electricity come from in NZ?

  8. How is Electricity Generated? - Types of Power Station -

  9. Hydro (spilling excess water)

  10. Hydro

  11. Hydro (pipes dropping down to turbines)

  12. Francis turbine (right) and inlet scroll (left)

  13. Turbine spins a generator

  14. Hydro (Pelton turbine)

  15. Pelton turbine and generator

  16. Make your own Pelton Turbine - Generator

  17. Wind

  18. Enercon E126 wind turbine: • Tower 135m, • Blades 126m diameter, • Power output 7MW.

  19. Thermal (Fossil fuels)

  20. Geo-thermal

  21. Solar Farm

  22. Solar (Photo-voltaic)