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 Milage of Typical Cars  (Milage Lookup)

The vehicle above gets about 12 miles/gallon.

Heat generated by burning various fuel sources:

Energy consumption for hot water use:

  • Colby showers run at 2 gal/min
  • Average "hot" water temperature: 105 °F
  • Average ground water ("cold"): 55 °F
  • Steam generation/water heating is approximately 85% efficient at the Colby steam plant

Electricity generation/use:

  • Electricity generation is approximately 60% efficient at the Colby steam plant

Manufacturing: The Secret Cost

What is Life Cycle Analysis?

Life Cycle Analysis for Transportation  (see selected figures below)


Life Cycle Analysis of consumer Products

  • Production of PET plastic (number 1 recyclable plastic) uses about 80MJ per kilogram of raw polymer, including feedstock and energy for production. (Source)
  • 81%  of a computers energy consumption over the lifetime of the product is due to the energy costs of production!  (Link)

Energy Conversions

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