Should you worry about how much electricity/money your MBP is using?

Discussion in 'MacBook Pro' started by piatti, Jul 17, 2010.

1. piatti macrumors 6502a

Joined:
Jun 9, 2010
Location:
USA
#1
Is the amount of electricity your MBP is using enough for you to worry about whether you should use free electricity available outside somewhere? or is it negligible?

2. BobbyCarbn macrumors regular

Joined:
Jun 21, 2009
#2
These stats are a little old, so your mileage will vary:

Generic Energy Star Compliant Laptop 15.4 inch screen
Standymode: 1.7 W
Turned On: 22 W
Running on Max: 65W
kWh consumed per day = 0.4564
kWh consumed per year = 166.57
Running Cost per year: \$17.76

Joined:
Sep 20, 2009
Location:
Bay Area
4. piatti thread starter macrumors 6502a

Joined:
Jun 9, 2010
Location:
USA
#4
How much hours per day using the MBP?

Also how much money does other Macs use?

5. TheIguana macrumors 6502a

Joined:
Sep 26, 2004
Location:
#5
Apple's environment reports would be a good place for you to start. These reports detail the power usage of different Macs under certain circumstances in Watts.

As for determining how much a Mac actually costs to run you will have to perform a conversion of the Macs power usage from Watts to kiloWatt-hours (kWh) as kWh is the unit system power companies charge by. This conversion will require taking into consideration the number of hours your Mac is being used and at what power load.

Finally, comparing the kWh value you determine and comparing it to the rate per kWh from your electricity provider you will be able to approximate how much it will cost to run a specific Mac.

6. kgeier82 macrumors 65816

Joined:
Feb 18, 2008
#6
MAX USAGE PER YEAR: 85watt adapter x 24hrs * 365 * .12 (cents/kwh)= 90\$/yr

NORMAL USAGE PER YEAR: 25-50\$

So no.

7. lionheartednyhc macrumors 65816

Joined:
Jul 13, 2009
#7
If you are worrying about it, you either need to lay off the porn or get a better job.

Joined:
Apr 10, 2010
Location:
#8
LOL:

9. demonsavatar macrumors regular

Joined:
Jun 26, 2010
#9
Take a look at how much your water heater, A/C, or heating are using. It will be orders of magnitude larger.

I became kind of fanatic in reducing my desktop's power consumption, but after getting a kill-a-watt meter I noticed my electric bills are dominated by my water heater. Unless you have a really crazy desktop or multiple desktops in your home, they aren't using too much.

btw my Desktop uses ~125W idle and has a Core i7 920, a GTX260 graphics card, and 4 7200RPM hard drives. Most laptops use less than 125W when max loaded...

Haven't measured the usage on my new MBP yet (see signature).