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Joxer · 15-01-2009, 21:10

What xpod suggests is the easiest option - a computer doesn't use the same amount of power all the time. You could get a rough guess of the maximum by using the rated power of the PSU, so if you have a 500w PSU (nice easy sums) it will use 1/2kwh per hour or 12 kwh a day, find out from your supplier how much they charge per kwh (it may change throughout the day) and multiply it by 12 (on a pro rata basis).

---------- Post added at 20:10 ---------- Previous post was at 20:07 ----------

The heater and heating thread suggest 14p/kWh so that would be Â£1.68 a day - this is with the monitor off, don't forget to check the power consumption of that too.

15-01-2009, 21:10	#3
Joxer Inactive Join Date: Jan 2008 Location: Sunny Cumbernauld Services: 20Mb BB, phone Posts: 651	Re: Power Cost Calculations for a PC What xpod suggests is the easiest option - a computer doesn't use the same amount of power all the time. You could get a rough guess of the maximum by using the rated power of the PSU, so if you have a 500w PSU (nice easy sums) it will use 1/2kwh per hour or 12 kwh a day, find out from your supplier how much they charge per kwh (it may change throughout the day) and multiply it by 12 (on a pro rata basis). ---------- Post added at 20:10 ---------- Previous post was at 20:07 ---------- The heater and heating thread suggest 14p/kWh so that would be Â£1.68 a day - this is with the monitor off, don't forget to check the power consumption of that too.