| Joined: | Mon Apr 2nd, 2012 |
| Location: | South Lakeland, UK |
| Posts: | 4066 |
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I have separate meters for my computers and shed.
I have just created a portable Watt hour meter to test individual items. We are having great fun going round testing the individual items of equipment to see what range of consumption they have.
My 'office' has a dedicated supply from the circuit board and I have a meter on that. I take weekly meter readings of the suppliers meter and my own sub circuit meters. I only became acutely aware of the computers apparent thirst after my last(summer) bill, which has raised my concern and led to my investigation.
The Mac Pro 5.1 seems to consume between 200 and 300 Watts. The 28" LED screen 22-25 Watts and my 25"LCD Samsung screen about 45-50 Watts That alone is going on for 350-400 Watts. The Mac Pro consumes ~1 Watt in sleep mode.
I also have an ageing UPS, I am wondering if that is becoming inefficient and wasting power. It must be at least ten years old. It's an APC 1500 I bought new because I was suffering with brown outs at my last place.
By comparison my G5 21" iMac is consuming between 95 and 130 Watts depending on idle or working, 4.7 asleep.
Over the last three weeks my main computer consumed 26, 24 and 30 kWh respectively.
This is an Excel graph of my allocated usage this year in kWh. The computer proportion up to week 25 is estimated from the average since week 25 to last week.
Higher usage correlates with school holidays... I do have a TV which the boys like to watch but is only used by them. That will account for some of the unallocated usage.
I am considering reviving one of my Mac mini's which have fallen into disuse since the Mac Pro came along. Use the Mac mini for the casual use, internet etc and keep the Mac Pro exclusively for image and video processing.
I don't rule out a newer iMac perhaps next year for the casual use and internet...
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Robert.