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Sustainability at ITS
Overview of this Website
Current Sustainable Practices
What ITS is doing now
Paper Saving Practices
Downloadable instructions for ways to save paper electronically
Energy Saving Practices
List of ways to reduce energy use on campus
Campus Statistics
Current figures of paper and energy useage
Help
Desk
Humanities 314
651-696-6525
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Campus Statistics
Computer Energy Use
Energy Equivalents
- You will always use less energy by putting your computer to sleep or shutting it down. It does NOT hurt your computer to turn it on or off multiple times per day.
- Power use per computer in Watts (from UPenn Information Systems and Computing)
Computer |
Moderate Use |
Sleep Mode |
Off |
| Apple iMac 20" |
112 |
4 |
1 |
| Apple MacBook Pro 2006 |
26-38 |
2 |
1 |
| Apple MacBook Pro 2008 |
52-58 |
1 |
1 |
| Dell Latitude D420 |
23-26 |
3 |
3 |
| Dell OptiPlex 745 |
108-138 |
3 |
1 |
- For tips on reducing energy use, click on the "Energy Saving Practices" link on the left
Paper Use at Macalester
About 15,000 sheets of paper are printed each day at Macalester.
During Wasteless Wednesday on February 25, 2009, reams of paper were displayed that show the amount of paper printed each day on campus.
This totals to about 105,000 sheets per week, and 3,150,000 sheets per year, costing about $26,000 each year to provide students with printed copies of articles, assignments and more.
The amount of paper printed per year would stand 1,050 feet high if it was stacked up, which is the height of 10 Macalester wind turbines on top of each other!
This is an average of 1,700 sheets, or 3.5 reams, per student per year.
In the Humanities Resource Center, an average of 930 pages are printed per day, which is 6,500 sheets per week!
In the library, an average of 5,383 pages are printed per day, which is 37,700 sheets per week!
This is what a typical week of Macalester printing in the library looks like.
Day |
Total Pages |
Double-Sided |
Single-Sided |
| February 18 |
4,846 |
4,574 |
272 |
| February 19 |
5,189 |
4,534 |
655 |
| February 20 |
5,741 |
5,031 |
710 |
| February 21 |
2,044 |
1,986 |
58 |
| February 22 |
4,224 |
3,985 |
239 |
| February 23 |
4,770 |
4,672 |
98 |
| February 24 |
6,628 |
5,988 |
640 |
Energy Use at Macalester
To view reports on Macalester's energy use and greenhouse gas emissions, check out the following documents created by Environmental Studies Senior Seminar students and data compiled by Curt Stainbrook, the heating plant manager.
Energy use statistics for 2007-2008, click here.
Macalester Greenhouse Gas Emissions Inventory 1990-2006, click here.
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