Overall Rating	Silver
Overall Score	54.32
Liaison	Emma Parsley
Submission Date	Dec. 12, 2022

STARS v2.2

Texas State University, San Marcos
OP-5: Building Energy Efficiency

Status	Score	Responsible Party
	3.61 / 6.00	James Vollrath Director Office of Sustainability

"---" 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	117,702,350 Kilowatt-hours	401,600.42 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	371,306 MMBtu
Imported steam, hot water, and/or chilled water	0 MMBtu

Total site energy consumption, performance year:

772,906.42 MMBtu

Performance year building space

Gross floor area of building space, performance year:

8,667,399 Gross square feet

Floor area of energy intensive space, performance year:

	Floor area
Laboratory space	445,707 Square feet
Healthcare space	29,241 Square feet
Other energy intensive space	189,191 Square feet

EUI-adjusted floor area, performance year:

9,806,486 Gross square feet

Performance year heating and cooling degree days

Degree days, performance year:

	Degree days
Heating degree days	1,401 Degree-Days (°F)
Cooling degree days	3,551 Degree-Days (°F)

Total degree days, performance year:

4,952 Degree-Days (°F)

Performance period

Start and end dates of the performance year (or 3-year period):

	Start date	End date
Performance period	Sept. 1, 2021	Aug. 31, 2022

Metric used in scoring for Part 1

Total site energy consumption per unit of EUI-adjusted floor area per degree day, performance year:

15.92 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.

Electricity use, baseline year (report kWh):

	kWh	MMBtu
Imported electricity	120,707,738.40 Kilowatt-hours	411,854.80 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	342,851 MMBtu
Imported steam, hot water, and/or chilled water	0 MMBtu

Total site energy consumption, baseline year:

754,705.80 MMBtu

Baseline year building space

Gross floor area of building space, baseline year:

7,102,422 Gross square feet

Baseline period

Start and end dates of the baseline year (or 3-year period):

	Start date	End date
Baseline period	Sept. 1, 2011	Aug. 31, 2012

A brief description of when and why the energy consumption baseline was adopted:

"Baseline year selected based on the context of the State Energy Conservation
Office (SECO) mandated SB 898 report"

Source energy

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	0.18 MMBtu per square foot
Baseline year	0.11 MMBtu per square foot	0.22 MMBtu per square foot

Metric used in scoring for Part 2

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

18.18

Optional Fields

Documentation to support the performance year energy consumption figures reported above:

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A brief description of the institution's initiatives to shift individual attitudes and practices in regard to energy efficiency:

Energy Conservation Committee (ECC) consists of student(s) and staff that work together to disseminate useful energy conservation techniques to the San Marcos community members. Currently, the ECC is working with University Seminar (freshman requisite course) to create talking points addressing this that can be inserted in the course's existing syllabi.

A brief description of energy use standards and controls employed by the institution:

Automatic light sensors on new buildings, buildings minimum and maximum temperatures set to energy efficient temperatures.

A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:

All new and future buildings are fitted with LED lighting and all parking garages and
some classrooms were retrofitted with LEDs. Use LEDs when replacing lighting all around campus.

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

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:

Two building were retrofitted and data indicates that they are now more efficient.

Website URL where information about the institution’s energy conservation and efficiency program is available:

http://www.txstate.edu/roster/standing/vpfss/energy-conservation.html

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.