Authored by Stephanie Boyd, Director of the Zilkha Center for Environmental Initiatives at Williams College. Re-posted with permission from the Sustainability at Williams blog.
For the second year in the college’s experiment, we closed our doors on December 24th, shuttered up buildings, turned down the heat, turned off computers, refrigerators, photocopiers, and all sorts of other electrical equipment in an effort to save energy, minimize spending on utilities, and reduce greenhouse gas emissions during a relatively slow period in the academic calendar. When the doors to the campus opened again on January 4th, the college had succeeded in saving $100,000 in avoided utility costs; 430,000 kilowatt hours of electricity; and 4,840 million British Thermal Units of heating energy. To give an understanding of scale, about 2600 houses would use this amount of electricity in a 10 day period.
This avoided energy use represents 528 metric tonnes of greenhouse gas emissions (GHG), a 26% increase in emissions savings compared to last year, and 2.7% of FY09 total annual emissions of 19,600 tonnes.