Since 2013, in partnership with Wes to Wes, all residential energy savings have gone directly to the financial aid raise the cap fund. From 2007-2014, the Sustainability Interns ran Do It in the Dark (DIITD), an energy competition between student residences. Over time, this competition lost effectiveness, so the Sustainablity Interns are piloting energy-conserving alternatives for Winter 2015-16.
If you're looking for ways to conserve your energy use, the most impactful thing you can do is to reduce your use of heat and air conditioning. There are a lot of other ways to reduce your energy use, which you can read on the DIITD blog.
Stay tuned for more information!