power conversion help

Discussion in 'Lighting' started by GrowMassGrass, Nov 1, 2012.

  1. In ny its 10-16 cents per kilowatt hour. If i ran 150 watts for 24 hours a day, what would the sum be after a month..... Whats confusing me is the kilowatt hour, is that just a normal hour?
     
  2. 1kWh = 1000 watts per hr.

    So, a 150wat system uses 0.150 kWh of electricity every hour. Times 16c maximum, is 2.4c/hr of usage.

    So, per month, you're looking at $17.28 per month.
     
  3. Thank you. Exactly what i need to know.
     

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