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Power Problem

  1. Sep 21, 2007 #1
    A hydroelectric dam has 1.21 x 10^5 W of power available.

    Suppose the efficiency of the plant is 0.75 (i.e., 75% of the ideal power can be realized) and the price of electricity is 10 cents per kilowatt hour. Calculate the value of energy generated in one year, in dollars.

    (1kWh = 3.6 x 10^6 J)
  2. jcsd
  3. Sep 21, 2007 #2


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    How much energy is delivered by the plant in 1 year?
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