Australia could be powered by waves

45,000 gigawatt-hours/year could be generated by wave power

Just how much electricity is this and where does this number come from? Doing some simple arithmetic we get:

1000 watt-hours is 1 unit of electricity as billed by utilities which is one kilowatt-hour (kWh)

45,000 gigawatt-hours = 45,000,000,000,000 Watt-hours (Wh). The average Australian household uses 16 kilowatt-hours (kWh) per day. If the number of households is 8.1 million. 16Kwh multiplied by 8.1 million is 129,600,000 kWh which is 129,600 mWh. This figure is per day, so we multiply by 365 to get 47 304 000 000 mWh per year, or 47,304 gWh per year. So our answer a little larger than the 45,000 gWh, but not too bad for an estimate.

Incidentally, the 16 kWh per day is about 480 kWh per month which comes to 5,840 kWh or 5.8 mWh per year. It might be useful to look at your energy bills and see how you could reduce your consumption.

Save Money on Energy and Electricity

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  • magsx2  On August 24, 2010 at 16:35

    Yes it all sounds very good, but when the powers that be built the wave generator at Port Kembla, Sydney, Australia, they had a grand opening in March 2010, and it sank in May 2010.
    If you would like to read about it, here is the link:-

    • wjrobert  On August 24, 2010 at 19:38

      Thanks, magsx2

      Of course the engineering has to work and last for a long time. There is no need to put all the eggs in one basket, either. It would probably be better to have many (competing) companies with their own generators.

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