| Overall Rating | Gold |
|---|---|
| Overall Score | 73.88 |
| Liaison | Audrey McSain |
| Submission Date | March 20, 2023 |
Lehigh University
OP-5: Building Energy Efficiency
| Status | Score | Responsible Party |
|---|---|---|
|
3.94 / 6.00 |
Douglas
Spengel Associate Director Utilities and Engineering Facilities Services |
"---"
indicates that no data was submitted for this field
Part 1. Site energy use per unit of floor area
Performance year energy consumption
| kWh | MMBtu | |
| Imported electricity | 64,610,267 Kilowatt-hours | 220,450.23 MMBtu |
| Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) | 5,228 Kilowatt-hours | 17.84 MMBtu |
Stationary fuels and thermal energy, performance year (report MMBtu):
| MMBtu | |
| Stationary fuels used on-site to generate electricity and/or thermal energy | 387,343 MMBtu |
| Imported steam, hot water, and/or chilled water | 0 MMBtu |
Total site energy consumption, performance year:
607,811.07
MMBtu
Performance year building space
4,941,155
Gross square feet
Floor area of energy intensive space, performance year:
| Floor area | |
| Laboratory space | 211,717 Square feet |
| Healthcare space | 6,101 Square feet |
| Other energy intensive space | 367,496 Square feet |
EUI-adjusted floor area, performance year:
5,744,287
Gross square feet
Performance year heating and cooling degree days
| Degree days | |
| Heating degree days | 5,358 Degree-Days (°F) |
| Cooling degree days | 1,072 Degree-Days (°F) |
Total degree days, performance year:
6,430
Degree-Days (°F)
Performance period
| Start date | End date | |
| Performance period | July 1, 2021 | June 30, 2022 |
Metric used in scoring for Part 1
16.46
Btu / GSF / Degree-Day (°F)
Part 2. Reduction in source energy use per unit of floor area
Baseline year energy consumption
STARS 2.2 requires electricity data in kilowatt-hours (kWh). If a baseline has already been established in a previous version of STARS and the institution wishes to continue using it, the electricity data must be re-entered in kWh. To convert existing electricity figures from MMBtu to kWh, simply multiply by 293.07107 MMBtu/kWh.
| kWh | MMBtu | |
| Imported electricity | 56,069,815 Kilowatt-hours | 191,310.21 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 | 599,974 MMBtu |
| Imported steam, hot water, and/or chilled water | 0 MMBtu |
Total site energy consumption, baseline year:
791,284.21
MMBtu
Baseline year building space
4,171,377
Gross square feet
Baseline period
| Start date | End date | |
| Baseline period | Jan. 1, 2007 | Dec. 31, 2007 |
A brief description of when and why the energy consumption baseline was adopted:
First year of complete available data
Source energy
3.14
Total energy consumption per unit of floor area:
| Site energy | Source energy | |
| Performance year | 0.12 MMBtu per square foot | 0.22 MMBtu per square foot |
| Baseline year | 0.19 MMBtu per square foot | 0.29 MMBtu per square foot |
Metric used in scoring for Part 2
24.09
Optional Fields
A brief description of the institution's initiatives to shift individual attitudes and practices in regard to energy efficiency:
The Eco-Rep Leadership Program was established in 2011. Eco-Reps are the voice for sustainability within their hall council and educate their peers living in their residential hall to be more aware of their behaviors. They help support campus sustainability efforts by embodying and promoting sustainable living within their residential halls. The Eco-Reps foster sustainable behavior among their peers through fun and educational programs focused on waste and recycling, water and energy conservation, transportation, sustainable food systems, and social equity. They make sure all hall council programs are sustainable and they are the recycling expert in their halls. The Eco-Reps are also the driving force during annual competitions including Energy Conservation Month (fall) and RecycleMania (now Campus Race to Zero Waste) (spring) helping to bring glory (and sometimes prizes) to their hall!
Most of Lehigh's buildings are individually submetered for electric, and these measurements are available to the entire Lehigh community through a dashboard system developed in-house and through Lehigh's partnership with OSISoft and the on-campus deployment of the OSISoft Pi System.
The University has a sustainability leadership team called the Lehigh Sustainability Council (LSC) that meets once a month to review and promote more sustainable behaviors through the faculty and staff departments.
Most of Lehigh's buildings are individually submetered for electric, and these measurements are available to the entire Lehigh community through a dashboard system developed in-house and through Lehigh's partnership with OSISoft and the on-campus deployment of the OSISoft Pi System.
The University has a sustainability leadership team called the Lehigh Sustainability Council (LSC) that meets once a month to review and promote more sustainable behaviors through the faculty and staff departments.
A brief description of energy use standards and controls employed by the institution:
The general space temperature settings are 72 to 76 for cooling and 68 to 72 for heating. Space temperatures in many buildings are monitored and adjusted remotely with the campus-wide building automation system (BAS). In general the BAS does not control lighting but most public areas like classrooms include occupancy, vacancy, or daylight sensors that locally turn off lighting when the spaces are vacant or too bright.
A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
Building lighting on all three campuses are being changed from a variety of existing lighting types to light-emitting diodes (LEDs). This is also occurring for street lighting throughout the three campuses, both for street lights maintained by the University and those maintained by the local power company. The local power company offers rebate incentives to encourage such projects to be completed, and the University has been taking advantage of the incentives program. More than a dozen buildings and two parking garages have undergone complete LED retrofits during the past three years. Many of these buildings, including the two parking garages, are also now equipped with new or additional lighting controls. More LED retrofits are planned for the coming year. Lehigh also conducted energy audits of 34 buildings during the 2020-2021 year, and is preparing to start implementing the energy-reduction recommendations.
A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:
Lehigh's architecture teams are designing some of these features into new buildings that are being planned for the campus. Lehigh has one building that is heated and cooled using geothermal wells. Lehigh has signed power purchase agreements to build a large-scale solar photovoltaic system offsite with a developer in collaboration with three other institutions and for an onsite solar array planned for 2022.
A brief description of co-generation employed by the institution:
The University does not use a cogeneration system on site at this time.
A brief description of the institution's initiatives to replace energy-consuming appliances, equipment, and systems with high efficiency alternatives:
All new construction and major renovations are commissioned, and all of these projects aim to be certified to a minimum LEED silver level. For current projects enhanced commissioning and building envelope commissioning are also being performed. Building automation system controls in Zoellner Arts Center (ZAC) were upgraded in 2018, and variable speed drives were added to fan motors at ZAC and in other campus buildings. An HVAC control system upgrade was performed at the STEPS laboratory building, the ATLSS/IMBT Building, other Mountaintop Campus buildings, and the Goodman Campus Stabler Athletic and Convocation Center. The STEPS laboratory building received two new exhaust heat recovery systems to replace defunct heat wheels. Future HVAC system upgrade projects are planned for the Mudd and Neville buildings during the next year.
Website URL where information about the institution’s energy conservation and efficiency program is available:
Additional documentation to support the submission:
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Data source(s) and notes about the submission:
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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.