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Electric Power Consumption and Generation

Electric Power Consumption and Generation. EES 306. US Energy Consumption: 100 QBtu. 30% of US Energy  Transportation. 40% of US Energy  Electricity. Electricity End Use. Power & Energy. 15 Watt bulb consumes 15 W of power continuously. 15 Watt bulb on for 1000 hours consumes

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Electric Power Consumption and Generation

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  1. Electric Power Consumption and Generation EES 306

  2. US Energy Consumption: 100 QBtu

  3. 30% of US Energy  Transportation

  4. 40% of US Energy  Electricity

  5. Electricity End Use

  6. Power & Energy 15 Watt bulb consumes 15 W of power continuously. 15 Watt bulb on for 1000 hours consumes 15 W x 1000 hours = 15,000 Wh of energy. 15,000 Wh x 0.001 kWh/Wh = 15 kWh kWh is the standard unit of electric energy.

  7. Electric Energy Cost We pay for the electric energy that we consume. We don’t pay for power. So, we pay for kWh. The cost of electric energy in CT is about 20 cents per kWh

  8. Electric Energy ($) The cost of running a 15 W bulb for 2000 hours: Energy = 15 W x 2000 hours = 30,000 Wh = 30,000 Wh x 0.001 kWh/ Wh = 30 kWh Cost = 30 kWh x 20 cents/kWh = $6

  9. Electricity Generation

  10. Electric Power Plant

  11. Fuel

  12. Coal-Burning Power Plant:Bridgeport Harbor Generating Station

  13. Coal Mine

  14. Coal Train

  15. Coal Pile

  16. Coal-Fired Boiler

  17. Steam Turbine

  18. Electric Generator

  19. Electric Generator

  20. Plant Output

  21. AC Power

  22. Voltage and Current

  23. Electric Grid

  24. Grid = Transmission & Distribution

  25. High Voltage Transmission

  26. Power Substation

  27. Power Pole

  28. Kilowatt-Hour Meter • .

  29. End Use • .

  30. Issue #1 - Efficiency

  31. Efficiency Electric Power Out Efficiency = ----------------------------- Thermal Power In So, if a power plant releases thermal energy (by burning coal) at the rate of 1,500 MW and produces 500 MW of electric power, then 500 MW Efficiency = ----------------- = 1/3 = 33% 1500 MW

  32. Issue #2 – Air Pollution

  33. Cap and Trade

  34. Issue #3 – Global Warming

  35. Carbon Capture and Storage

  36. Conservation

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