Overall Rating	Gold - expired
Overall Score	67.57
Liaison	Juliana Goodlaw-Morris
Submission Date	Dec. 18, 2020

STARS v2.2

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

Status	Score	Responsible Party
	4.99 / 6.00

"---" 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	14,759,531.40 Kilowatt-hours	50,359.52 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems)	114,000 Kilowatt-hours	388.97 MMBtu

Stationary fuels and thermal energy, performance year (report MMBtu):

	MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy	81,222.51 MMBtu
Imported steam, hot water, and/or chilled water	0 MMBtu

Total site energy consumption, performance year:

131,971.00 MMBtu

Performance year building space

Gross floor area of building space, performance year:

2,741,173 Gross square feet

Floor area of energy intensive space, performance year:

	Floor area
Laboratory space	117,529 Square feet
Healthcare space	20,000 Square feet
Other energy intensive space	46,657 Square feet

EUI-adjusted floor area, performance year:

3,062,888 Gross square feet

Performance year heating and cooling degree days

Degree days, performance year:

	Degree days
Heating degree days	1,428 Degree-Days (°F)
Cooling degree days	629 Degree-Days (°F)

Total degree days, performance year:

2,057 Degree-Days (°F)

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:

20.95 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	16,069,379.84 Kilowatt-hours	54,828.72 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	30,811 MMBtu
Imported steam, hot water, and/or chilled water	0 MMBtu

Total site energy consumption, baseline year:

85,639.72 MMBtu

Baseline year building space

Gross floor area of building space, baseline year:

1,263,548 Gross square feet

Baseline period

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

	Start date	End date
Baseline period	Jan. 1, 2014	Dec. 31, 2014

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

The baseline was chosen as this is a plateau period for building additions.

Source energy

Source-site ratio for imported electricity:

3.14

Total energy consumption per unit of floor area:

	Site energy	Source energy
Performance year	0.05 MMBtu per square foot	0.09 MMBtu per square foot
Baseline year	0.07 MMBtu per square foot	0.16 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:

45.56

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:

Staff attempts to reach out through student clubs, staff meetings and individual education to explain the importance of each person’s role in reducing energy use. The use of marketing materials on bulletin boards and common spaces serves as a resource for the campus community to understand energy consumption practices.

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

-Temperature comfort zones set to 68 degrees (winter) and 78 degrees (summer)
-All classrooms spaces and most offices are equipped with occupancy and/or vacancy sensors.
-Common spaces are on lighting control panels that can be dimmed or turned off in naturally lite areas or during curtailment events.

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

LED fixtures are used to replace fixtures as needed. The campus has a full scale LED and control upgraded planned, both internally and externally.

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

Many of the buildings on campus have large windows, these are our only PSH.

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

A fuel cell became operational in December 2015 through PPA. Waste heat is used to preheat boiler water and power absorption chiller to supplement cooling. The campus pays for the electricity produces and natural gas to supply fuel cell.

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

---

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

http://www.csusm.edu/sustainability/docs/SustainabilityMasterPlan.pdf

Additional documentation to support the submission:

---

Data source(s) and notes about the submission:

Note: There is a discrepancy with our baseline reporting and current reporting of Stationary fuels used on-site to generate electricity and/or thermal energy. In 2015 a fuel cell was installed which runs completely off of natural gas, roughly quadrupling our natural gas consumption. Therefore, you see a jump from our baseline year, which is reporting zero, to our current year reporting due to this installation.

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.