This is a non-issue and non-concern. Running that unit 24/7/365 might cost you an extra $10 on your power bill per year. Modern computers are incredibly power-efficient.
To use the machine in a normal fashion for eight hours a day, every single day, would result in 905.20 KW over the course of a year. The average cost of a kilowatt hour in the US right now is 10.2 cents, so that is an extra $10 or so over the course of a year.
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