The Resource Efficiency Program (REP) is a peer education program based in Harvard's undergraduate Houses and Dorms.

REPs are peer educators, trained to become environmental change agents. These students will educate their peers about environmental issues and encourage them to live more sustainably. Goals of the program include enhancing students’ knowledge and skills to communicate sustainability to their peers, increasing overall student awareness of environmental actions and ways to effect individual and group change on campus, and institutionalizing environmental stewardship within the Harvard College student body. The program also works with the administration to make facilities and operations more sustainable. If you have an idea or just want to get involved contact your House or Yard REP.

REP Programs and Campaigns

Green Cup Competition for the Houses

Green Cup is an inter-House competition that runs throughout the academic year. There are three categories that each carry a cash prize—Participation, Resource Conservation, and Greenest House Committee (Green HoCo)—plus an awesome, giant trophy for the overall winner.


Electronic waste recycling includes batteries, phones, chargers, light bulbs—anything to do with electricity. Find blue e-waste tubes to recycle your e-waste in:

  • House Building Manager’s office
  • Yard trash/recycling rooms
  • Academic, administrative, and lab buildings

Learn more


Top 5 energy-reducing tips for Houses and Dorms

  1.  Use an LED in your desk lamp—FREE from REP! 
  2. Take shorter showers. 
  3. Wash your laundry in cold water (Bright Colors setting). 
  4. Report leaky windows, broken storm windows, and broken radiator controls. 
  5. Power down and unplug electronics when not in use, and turn off lights when you leave your room.

Learn More

REP Energy Quiz

Free LEDs

REP distributes free LED light bulbs to all undergrads for desk lamps and other task lighting. LED stands for light-emitting diode, and is the most energy-efficient bulb on the market! LEDs are 90% more efficient than incandescent bulbs, and about 15% more efficient than fluorescents. They contain no harmful gases, and can last up to 20 years! Contact your REP to request one!

Pre-break pledge

Make sure to keep your carbon footprint in check while you’re away by pledging to take energy saving actions. 

Shut down for the holidays

Shorter showers campaign

Did you know reducing your shower by one minute every day for one week will save 1,355 watts of energy used to heat the water. That's 249 iPhone charges! Would you use a shower timer if one were provided? More information about shower timers coming soon!

Green Laundry

Forget darks and lights! Every load can be GREEN! After you’ve sorted your laundry colors from whites (just kidding about forgetting to sort), fill your washer with a full load and select “Bright Colors” (regular cycle with cold water) or “Woolens” (gentle cycle with cold water). In addition to saving energy, your clothes colors will stay crisper and last longer!