Lights Out Across Campus

On October 9, KU participated in “Lights Out Across Campus”, a campaign encouraging faculty, staff, and students to shut off overhead lights and rely on the natural light streaming through the windows.  In buildings where electricity use dropped for the day (compared to a day in September with similar weather), we saved 4,900 kWh of electricity, the energy equivalent of 15,327 bulbs burning for 10 hours.

When looking at a $12 million utility budget, the $300 saved by those buildings doesn’t seem like much.  But add that up over the course of a year and get more people to participate, and we start to add some zeros behind that figure.  And every little bit counts – not only for the power bills but for the planet.

Don’t want to sit around in the dark?  You might be surprised just how much light you can get without flipping the switch.  With the exception of a few rainy days in October, I get by just fine all year without a single overhead light.  I have a lamp on my desk (with a CFL installed, by the way) that provides any light I need for reading, and if I move my chair closer to the window, I don’t even need that.

Give it a try and see what happens.  Who knows, that pest down the hall may even think you are gone and leave you alone for a change!

Super Shift: Really?!  What’s bigger than keeping the lights off all the time?

Goodnight Gigabytes

This morning when I got to work, I did something not everyone does: turned on my computer.  Seems like a basic step for all of us to get started with our work day, right?  But it is only necessary if you turned the computer OFF the night before.   Unfortunately, that isn’t always the case with computers at work or in our homes.  Whether for reasons of convenience (are you really going to get that much done with an extra 30 seconds?) or concerns that turning the computer off and on is hard on the hard drive, we seem to think the computer needs to be on 24 hours a day.

Here at KU, shutting down is recommended in the list of conservation measures sent out each year by the Office of the Provost.  It was even enough of a concern that the Governor of Kansas included a statement in her Executive Directive on Energy Conservation and Management calling for computers to be turned off any time they won’t be used for a period of 4 hours or more.

So why are we still leaving them on at night? I recently plugged my computer into a device that measures how much electricity is flowing through the power cord.  With my monitor on, it was running about about 100 watts.  So walking away from the computer without turning it off is like leaving a 100 watt lightbulb burning all day in the closet.  You wouldn’t do that would you?

So try saying “goodnight” to the gigabytes before you leave work or before you go to bed.  You’ll be amazed at how saving a little extra energy at night won’t even slow you down the next day.  And the planet will thank you for the good night’s sleep.

Super Shift: Already giving your CPU some Zs?  Try shutting down anytime you are going to be out of the office for more than an hour and change your power settings to turn the monitor off after 5 minutes of inactivity and the system to go into standby (or better yet hibernate) after 30 minutes.