- Overall energy use per square foot increased by 11% in 2013 due primarily to an increase in thermal use attributable to a 16% increase in heating degree days from 2012 to 2013.
Electrical use per square foot increased by 1.8. Increased hours of operation and equipment demands continue to counteract gains made through energy conservation projects.
- Energy projects in 2013 included lighting retrofits (including LED lighting in Torrey Hall and exterior LED lighting), continued installation of occupancy sensors, replacement of burner controls at the Central Heating Plant and attic sealing and insulation in North Mandelle.
- Greenhouse Gas (GHG) emissions are 9.1 % higher than 2012 levels, attributable to the causes described above for energy use increase.
- GHG emissions are 5.5% below 1990 emission levels, our goal for 2020 is 10% below 1990 levels..
- Unlike 2012, when we burned only natural gas, #6 oil comprised 5.5% of the total thermal BTUs in 2013. Our natural gas vendor required we switch to #6 for 6 days.
- Since neither fuel choice nor degree days can be relied upon to maintain or reduce emission levels, work remains to reduce emissions through reduction in campus energy use.
- Recycling as a percentage of total discards remains above 50%.
- Routine trash disposal is 15% below 2006 levels with recycled materials as a percentage of discarded materials increasing 13% over the same period.
- Not included in these numbers are construction debris, which is recycled, and Equestrian Center waste, which is composted. Both are excluded because their volume would mask variability of other discards.
- Capturing and treating storm water to remove sediments is an important component of maintaining and restoring the health of Upper and Lower Lakes and Stony Brook.
- Prior to 2001, we did not treat any captured storm water. Treatment structures are installed during major construction.
- The percentages remain unchanged from 2012 as no projects afforded the opportunity to redirect more drains to treatment structures.
- This indicator reflects the percentage of the 714 acre contiguous campus that has impervious surfaces. The percentage remains unchanged from 2012.
- Impervious surfaces include all campus buildings and surrounding terraces, roads, sidewalks, and parking lots.
- Sustainable purchases include food that is locally grown, locally sourced, locally processed, or organic.
- The increase in purchases from FY 11 to FY12 was due to adding/identifying more locally sourced/processed food items with the help of our primary vendor, increased local produce purchases, and our commitment to purchase local cage-free eggs and locally grown ground and stew beef.