We average and get 140 watts. We add 40 watts, which the display “eats” - 180 watts / hour comes out. If we take the same 5 hours a day, 180 * 5 * 30 = 27 kW / h gets into the monthly payment. Testing confirms that, unlike a gaming computer, a 400 W PSU is enough for an office PC. If this annoys you, here is a great option to save money
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