| Overall Rating | Silver |
|---|---|
| Overall Score | 45.28 |
| Liaison | Nina Bisbee |
| Submission Date | Sept. 22, 2023 |
Bryn Mawr College
OP-5: Building Energy Efficiency
| Status | Score | Responsible Party |
|---|---|---|
|
2.84 / 6.00 |
James
McGaffin Associate Director for Project Management and Energy Facilites Services |
Electricity use, performance year (report kilowatt-hours):
| kWh | MMBtu | |
| Imported electricity | 15,915,349 Kilowatt-hours | 54,303.17 MMBtu |
| Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) | 0 Kilowatt-hours | 0 MMBtu |
Stationary fuels and thermal energy, performance year (report MMBtu):
| MMBtu | |
| Stationary fuels used on-site to generate electricity and/or thermal energy | 58,008.85 MMBtu |
| Imported steam, hot water, and/or chilled water | 0 MMBtu |
Total site energy consumption, performance year:
Gross floor area of building space, performance year:
Floor area of energy intensive space, performance year:
| Floor area | |
| Laboratory space | 185,000 Square feet |
| Healthcare space | 0 Square feet |
| Other energy intensive space | 11,200 Square feet |
EUI-adjusted floor area, performance year:
Degree days, performance year:
| Degree days | |
| Heating degree days | 3,458 Degree-Days (°F) |
| Cooling degree days | 1,330 Degree-Days (°F) |
Total degree days, performance year:
Start and end dates of the performance year (or 3-year period):
| Start date | End date | |
| Performance period | June 1, 2021 | May 31, 2022 |
Total site energy consumption per unit of EUI-adjusted floor area per degree day, performance year:
Electricity use, baseline year (report kWh):
| kWh | MMBtu | |
| Imported electricity | 16,416,962.13 Kilowatt-hours | 56,014.67 MMBtu |
| Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) | 0 Kilowatt-hours | 0 MMBtu |
Stationary fuels and thermal energy, baseline year (report MMBtu):
| MMBtu | |
| Stationary fuels used on-site to generate electricity and/or thermal energy | 69,304 MMBtu |
| Imported steam, hot water, and/or chilled water | 0 MMBtu |
Total site energy consumption, baseline year:
Gross floor area of building space, baseline year:
Start and end dates of the baseline year (or 3-year period):
| Start date | End date | |
| Baseline period | June 1, 2007 | May 31, 2008 |
A brief description of when and why the energy consumption baseline was adopted:
Source-site ratio for imported electricity:
Total energy consumption per unit of floor area:
| Site energy | Source energy | |
| Performance year | 0.09 MMBtu per square foot | 0.17 MMBtu per square foot |
| Baseline year | 0.09 MMBtu per square foot | 0.18 MMBtu per square foot |
Percentage reduction in total source energy consumption per unit of floor area from baseline:
Documentation to support the performance year energy consumption figures reported above:
A brief description of the institution's initiatives to shift individual attitudes and practices in regard to energy efficiency:
A brief description of energy use standards and controls employed by the institution:
All building thermostats are set for a range of 68-70 degrees in the heating season and 73-75 degrees during the cooling season. Temperature ranges are set back further on a daily basis during low occupancy hours and during academic year breaks.
A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
All new lighting fixtures are installed with LED technology. With advances in energy technology new lighting LED lamps are now available of existing fixtures with or without minor retrofits. Where technology is available all re-lamping employs LED lamps.
The College is now entering its third generation of LED lighting on the campus. The campus interior lighting systems have a LED utilization above 90%. The College is just beginning to actively replace exterior lighting with LED equipment.
A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:
In 2012, Bryn Mawr College installed its first solar panels on the southern slopes of Cambrian Row. Of the two solar panels, the large 12-panel set has a maximum power of 2820 watts and a smaller two-panel set has the potential power of 570 watts. The solar energy is currently being used to light the safety lights of the SGA house on Cambrian Row. We also have a demonstration wind mill on site.
A brief description of co-generation employed by the institution:
A brief description of the institution's initiatives to replace energy-consuming appliances, equipment, and systems with high efficiency alternatives:
Bryn Mawr College has an ongoing program to replace or refurbish older HVAC equipment to improve efficiency. The College has recently replaced the chiller & pumps within its largest chiller plant with magnetic chillers and VFD pumps. This plant also has a demand optimization program to manage equipment to optimize chiller output with the least energy consumption. The College is currently replacing two boiler plants with condensing boiler increasing the overall efficiency of the plants by 10%. The College has been and continues to install direct outside air units with energy recovery system where possible.
Website URL where information about the institution’s energy conservation and efficiency program is available:
Additional documentation to support the submission:
Data source(s) and notes about the submission:
The information presented here is self-reported. While AASHE staff review portions of all STARS reports and institutions are welcome to seek additional forms of review, the data in STARS reports are not verified by AASHE. If you believe any of this information is erroneous or inconsistent with credit criteria, please review the process for inquiring about the information reported by an institution or simply email your inquiry to stars@aashe.org.