after seeing my last 2 electric bills creep up to near $70, I decided to see what exactly I was spending my money on. I ordered the Kill-A-Watt measuring device from Newegg for $20. It was delivered today, and I started measuring things.
My quad core desktop with dual hard drives runs about 70 watts at idle, and bounces up to about 140 watts with various loads (I didn't full load test it, more so real usage), when put into sleep mode, 2 watts.
I plugged in my home theater power strip with everything off. 25 watts with everything off, wtf? Something is amiss here. Turns out it's my Directv receiver that is drawing 25 watts 24/7, I'm guessing to keep the guide up to date. I wish there was a way to shut it off totally. I will just flip the power strip off and see if it has to rebuild the guide every time or not. Disappointing to say the least. I didn't test it with everything on, I might have to do that tomorrow to see. I wouldn't be surprised to see 200+ watts.
I then put it on my laptop, a Latitude E4300. During normal usage, 11-14 watts, under heavy load (booting VM's), I saw it spike to 21 watts. So my laptop turned on and under load uses less power than my Directv receiver does when turned off. Brilliant.
I took it downstairs and plugged it into the power strip serving my home server, 2 battery backups, switch, router, and wireless ap. 160 watts. yikes. if I turn off the home server, it drops to about 28 watts. I might have to look into replacing the 'server' with an old laptop or something.
I didn't think much of any of this, but over time I'm guessing it really adds up. When I get some more time I'm going to test my fridge and all that stuff out of curiosity.
Here and I thought it was my new tv sucking the juice all the time, when it was the stupid tv receiver and home server. This device is really cool, you can program it with the cost of a kw/hr of electricty, and let it poll for a length of time, and it will tell you the cost to run that device.