180 watts average per day is 4.3 kilowatt-hours per day. This is a pretty common question in PV - "how many kilowatt-hours will I need if I use 100 watts a day average?" 100 watts is power; the answer they want is 2.4 kilowatt-hours per day, which is a measure of energy.[/QUOTE]
I strongly disagree with you. WATT is a measurement of power in a given time frame. Watt hour or Watt day is a measurement of total work done.
So a circujit consumes 15 amps per day at 12 volts; How many watts are used?
I guess my engineering course (EE and BBC) was different to yours.
I strongly disagree with you. WATT is a measurement of power in a given time frame. Watt hour or Watt day is a measurement of total work done.
So a circujit consumes 15 amps per day at 12 volts; How many watts are used?
I guess my engineering course (EE and BBC) was different to yours.
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