“Sleep On” is an optional Energy Conservation Computer Power Management program offered to University departments that will reduce the energy consumption of campus computers.
Computer power management features automatically place computers into a low-power "sleep mode" after a period of inactivity. Simply touching the mouse or keyboard "wakes" the computer in seconds (or less!). Think of computer power management as a sort of “occupancy sensor” for your computer, similar to the ones that control overhead lights in some offices and restrooms.
The “sleep” settings offered through “Sleep On” fall within Energy Star recommendations and are 5 minutes for monitors and 20 minutes for computers in offices.
Did you know a PC monitor switched off overnight saves enough energy to microwave six dinners!
93% of users said it had no impact on their work flow and 81% of users said the sleep settings were completely unnoticeable after the pilot program in Carruth O'Leary.
Contact us to have these sleep settings installed in your department & start saving energy!
These departments have jumped on board and are saving energy with their new sleep settings:
- Campus Administration & Operations Shared Service Center
- Education, Social & Biobehavioral Shared Service Center
- Hilltop Child Care
- Human Resource Management
- KU Comptroller's
- Sexual Assault Prevention and Education Center
- Visitor's Center
*The Center for Sustainability continues to encourage the shutdown of computers. These sleep settings are in place in case you forget to power down your computer or are away from your desk for an extended period of time. Interested in encouraging your department to power down their computers? Check out the “Turn Off before Take Off” program.
Why should I have opt-in to this program and have these settings installed on our department computers?
- Save money & electricity. Free savings estimates are available via a number of online calculators such as the one offered by Energy Star’s Low Carbon IT Campaign website (look under the “Quick Links” sidebar.
- Use less air conditioning. CPM features reduce office cooling loads, which can save an additional $5-10 per computer annually, and as much as $10-25 or more in warm climates. This is because computers and monitors generate a considerable amount of heat when in full operation.
- Enhance data security. CPM features reduce the chance that sensitive information is displayed on unattended computers.
- Prevent pollution & minimize greenhouse gas emissions. Saving energy prevents pollution associated with generating electricity and lowers your carbon footprint.
Don’t I save more energy by leaving it on rather than turning it on and off?
Though there is a small surge in energy when a computer starts up, this small amount of energy is still less than the energy used when a computer is running for long periods of time. Most PCs reach the end of their "useful" life due to advances in technology long before the effects of being switched on and off multiple times have a negative impact on their service life. Spending a large portion of time in low-power mode not only saves energy but helps equipment run cooler and last longer. Some helpful guidelines are:
- Turn off the monitor if you aren't going to use your PC for more than 20 minutes.
- Turn off both the CPU and monitor if you're not going to use your PC for more than 2 hours.
Won’t turning my computer on and off every day damage it or decrease its usable lifetime?
No harm will come from shutting your computer down when it is not needed. Manufacturers report that turning a computer on and off will have no detrimental effects over the useful lifetime of the equipment.
Doesn’t my screen saver save energy?
Skip the screensaver. Screen savers do not reduce the use of power by your computer; once your screen saver kicks in, your monitor will draw its full power load. Enabling power management is the only means of consuming less energy when your computer is turned on but is not being actively used.
Should I use a power strip?
Yes, make sure your monitors, printers, and other accessories are on a power strip/surge protector. When this equipment is not in use for extended periods, turn off the switch on the power strip to prevent them from drawing power even when shut off. If you don't use a power strip, unplug extra equipment when it's not in use.
What about classroom and laboratory computers?
We have settings for those through Sleep On as well! Check out the details here.