Overall Rating Gold
Overall Score 68.47
Liaison Ryan Todd
Submission Date March 1, 2021

STARS v2.2

California State University, Sacramento
OP-5: Building Energy Efficiency

Status Score Responsible Party
Complete 3.80 / 6.00 Kristina Cullen
Sustainability Analyst
Facilities Management—Sustainability
"---" indicates that no data was submitted for this field

Electricity use, performance year (report kilowatt-hours):
kWh MMBtu
Imported electricity 41,216,301 Kilowatt-hours 140,630.02 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) 861,580 Kilowatt-hours 2,939.71 MMBtu

Stationary fuels and thermal energy, performance year (report MMBtu):
MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy 122,446 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, performance year:
266,015.73 MMBtu

Gross floor area of building space, performance year:
6,059,245 Gross Square Feet

Floor area of energy intensive space, performance year:
Floor area
Laboratory space 279,805 Square Feet
Healthcare space 210,645 Square Feet
Other energy intensive space 877,934 Square Feet

EUI-adjusted floor area, performance year:
7,918,079 Gross Square Feet

Degree days, performance year:
Degree days
Heating degree days 2,367 Degree-Days (°F)
Cooling degree days 1,268 Degree-Days (°F)

Total degree days, performance year:
3,635 Degree-Days (°F)

Start and end dates of the performance year (or 3-year period):
Start date End date
Performance period July 1, 2018 June 30, 2019

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

Electricity use, baseline year (report kWh):
kWh MMBtu
Imported electricity 43,081,246.83 Kilowatt-hours 146,993.21 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) 800,350 Kilowatt-hours 2,730.79 MMBtu

Stationary fuels and thermal energy, baseline year (report MMBtu):
MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy 110,087 MMBtu
Imported steam, hot water, and/or chilled water 0 MMBtu

Total site energy consumption, baseline year:
259,811.01 MMBtu

Gross floor area of building space, baseline year:
5,166,951 Gross Square Feet

Start and end dates of the baseline year (or 3-year period):
Start date End date
Baseline period Aug. 1, 2013 July 31, 2014

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

The performance year was chosen based on the most recent 12 month period prior to starting work on the STARS report. The baseline year was determined by choosing the 12 month period prior to completing the first STARS assessment.


Source-site ratio for imported electricity:
3

Total energy consumption per unit of floor area:
Site energy Source energy
Performance year 0.04 MMBtu / GSF 0.09 MMBtu / GSF
Baseline year 0.05 MMBtu / GSF 0.11 MMBtu / GSF

Percentage reduction in total source energy consumption per unit of floor area from baseline:
15.73

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:

Facilities Management takes the following steps to efficiently utilize natural gas and electricity to meet the heating and cooling needs of the campus:
• Interior building temperatures will be maintained at 68 degrees F in the winter and 78 degrees F in the summer.
• Domestic hot water temperatures will not be set above 115 degrees F.
• All air conditioning equipment and fans will be shut off on weekends, holidays, and nightly, wherever appropriate.
• During working hours, ventilation will be maintained to meet health and safety standards.
• Windows and doors should remain closed at all times to prevent loss of conditioned air. It is impossible to maintain controlled conditions if windows are open in offices or classrooms.
• Heat generating equipment and large items of furniture, such as bookshelves or cabinets, should not be set in front of thermostats to prevent false temperature readings and cause over-cooling or under-heating.
• Use of portable electric heaters and fans is not allowed unless authorized by the campus Energy Coordinator. Approval is dependent upon medical need or failure of the building heating and ventilating systems.


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

LED Street Lighting Project:
Sac State has replaced all the old High Pressure Sodium cobra head street lighting fixtures with energy efficient LED street lights. The project has resulted in 54% energy savings, reduced maintenance costs, and better lighting quality, color, and improved security.
Gym LED Lighting Retrofit:
Sac State replaced 30 existing High Pressure Sodium lights in Yosemite Hall’s North Gym with 20 LED lamps with individual occupancy sensors that resulted in 73% energy savings, reduced maintenance cost due to longer lamp life, and better lighting quality and color.
The campus conducted a LED lighting retrofit in Mendocino Hall which reduced lighting consumption by 85% and has an estimated energy savings of $22,247 a year.


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:

The water energy savings grant project funded by the Department of Water Resources (DWR), facilitated the replacement of countless commercial and residential grade appliances throughout campus with energy star certified appliances.


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

Additional documentation to support 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 and complete the Data Inquiry Form.