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A comment on 14-Year-Old Boy Arrested for Bringing Homemade Clock to School. Parent comment

Re:14-Year-Old Boy Arrested for Bringing Homemade Clock to S... by sean13013 on Wednesday September 16, 2015 @11:36AM (#10227381)
If the machines were awake for 12 extra hours a day, and drew 100 watts, that's 0.1kW * 5000machines * 12hours = 6000kWh per day.

Where I live, electricity costs about 20 cents per kWh. 0.2dollars * 6000kWh * 365days * 9years = $3.94 million.

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