1. PSC 4011 Electricity: What’s the connection?

2. PSC 4011 Energy: Transformations & Uses

3. E p transformed into E k E k transformed into E mechanical E mechanical transformed into E electrical

4. PSC 4011 Energy: Transformations & Uses Hydroelectric generating station FirstPotential energy of water (at reservoir) is transformed into kinetic energy SecondKinetic energy of water is transformed into mechanical energy (turbine) ThirdMechanical (rotary) energy is transformed into electrical energy (generator)

5. PSC 4011 Energy: Transformations & Uses Disadvantages (Hydro)  Risk of flooding  Change in water levels  Fish habitats affected Advantages (Hydro)  Clean energy  Renewable energy  Low cost energy

6. PSC 4011 Energy: Transformations & Uses Chemical energy transformed into E k E k transformed into E mechanical E mechanical transformed into E electrical

7. PSC 4011 Energy: Transformations & Uses Conventional Thermal generating station FirstChemical energy of fuel is transformed into kinetic energy (at boiler) SecondKinetic energy of water is transformed into mechanical energy (turbine) ThirdMechanical (rotary) energy is transformed into electrical energy (generator)

8. PSC 4011 Energy: Transformations & Uses Disadvantages (Thermal)  Pollution  Not renewable energy  Human health Advantages (Thermal)  Job creation  Improves economy  Low cost energy

9. PSC 4011 Energy: Transformations & Uses Nuclear energy transformed into E k E k transformed into E mechanical E mechanical transformed into E electrical

10. PSC 4011 Energy: Transformations & Uses Nuclear generating station FirstNuclear energy of fuel is transformed into kinetic energy (at reactor) SecondKinetic energy of water is transformed into mechanical energy (turbine) ThirdMechanical (rotary) energy is transformed into electrical energy (generator)

11. PSC 4011 Energy: Transformations & Uses Disadvantages (Nuclear)  Radioactive waste  Safety risk  Very expensive Advantages (Nuclear)  High yield  Pollution (GHG’s) free  Near location

12. PSC 4011 Energy: Transformations & Uses E k transformed into E mechanical E mechanical transformed into E electrical Wind energy transformed into E k

13. PSC 4011 Energy: Transformations & Uses Wind generating station FirstWind energy of fuel is transformed into kinetic energy (at blades) SecondKinetic energy of water is transformed into mechanical energy (gear) ThirdMechanical (rotary) energy is transformed into electrical energy (generator)

14. PSC 4011 Energy: Transformations & Uses Disadvantages (Wind)  Low yield  Cannot be stored  Sound pollution Advantages (Wind)  Clean energy  Renewable energy  Free energy