Overall Rating Silver
Overall Score 54.61
Liaison Daniela Beall
Submission Date March 3, 2022

STARS v2.2

University of Wisconsin-Green Bay
OP-5: Building Energy Efficiency

Status Score Responsible Party
Complete 4.86 / 6.00 Mark Wenzel
Heating Plant Superintendent
Facilities
"---" indicates that no data was submitted for this field

Part 1. Site energy use per unit of floor area

Performance year energy consumption

Electricity use, performance year (report kilowatt-hours):
kWh MMBtu
Imported electricity 14,406,206 Kilowatt-hours 49,153.97 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 111,751.25 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, performance year:
160,905.22 MMBtu

Performance year building space

Gross floor area of building space, performance year:
184,628.64 Gross square meters

Floor area of energy intensive space, performance year:
Floor area
Laboratory space 4,528.74 Square meters
Healthcare space 0 Square meters
Other energy intensive space 0 Square meters

EUI-adjusted floor area, performance year:
193,686.13 Gross square meters

Performance year heating and cooling degree days 

Degree days, performance year:
Degree days
Heating degree days 4,114.06 Degree-Days (°C)
Cooling degree days 412.28 Degree-Days (°C)

Total degree days, performance year:
4,526.33 Degree-Days (°C)

Performance period

Start and end dates of the performance year (or 3-year period):
Start date End date
Performance period July 1, 2019 June 30, 2020

Metric used in scoring for Part 1

Total site energy consumption per unit of EUI-adjusted floor area per degree day, performance year:
56.65 Btu / GSM / Degree-Day (°C)

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.

Electricity use, baseline year (report kWh):
kWh MMBtu
Imported electricity 16,558,599 Kilowatt-hours 56,497.94 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 132,481.23 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, baseline year:
188,979.17 MMBtu

Baseline year building space

Gross floor area of building space, baseline year:
142,969.82 Gross square meters

Baseline period

Start and end dates of the baseline year (or 3-year period):
Start date End date
Baseline period July 1, 2013 June 30, 2014

A brief description of when and why the energy consumption baseline was adopted:
This was the baseline established by the prior sustainability coordinator.

Source energy

Source-site ratio for imported electricity:
3

Total energy consumption per unit of floor area:
Site energy Source energy
Performance year 0.87 MMBtu per square meter 1.40 MMBtu per square meter
Baseline year 1.32 MMBtu per square meter 2.11 MMBtu per square meter

Metric used in scoring for Part 2

Percentage reduction in total source energy consumption per unit of floor area from baseline:
33.53

Optional Fields 

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:
The energy management system at the campus heating/cooling plant directs temperature regulation from the distribution point. Heating/cooling run time of the air handler are based on occupancy hours. Night set-back.

A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
LED lighting is being used in track lighting and display cabinets in the University Union, Kress Events Center, Laboratory Sciences, Instructional Services, and Weidner Center for the Performing Arts. LED lighting has also been installed in all exterior path lighting (245 path lights) as well as in the University Union's Cloud Commons dining facility. Working on converting parking lot & street lights to LEDs (60 fixtures of 330 will be swapped out in 2022). The Mary Ann Cofrin Hall renovation incorporated LED lighting into all the classrooms.

A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:
N/A

A brief description of co-generation employed by the institution:
N/A

A brief description of the institution's initiatives to replace energy-consuming appliances, equipment, and systems with high efficiency alternatives:
All appliances are Energy Star.

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 electricity and natural gas data (and sq ft) is for the academic buildings and auxillary buildings on the main campus. Still working on acquiring data for housing, which is owned and accounted for separately. Unsure why imported steam/hot water/chilled water was listed previously. According to our heating plant superintentendent, we generate our own steam and chilled water through our purchased electricity and natural gas - we do not purchase it from another party. This error has been corrected in this report.

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.