Overall Rating	Gold
Overall Score	76.57
Liaison	Katie Koscielak
Submission Date	April 11, 2023

STARS v2.2

Cal Poly Humboldt
OP-5: Building Energy Efficiency

Status	Score	Responsible Party
	3.32 / 6.00	Andrea Alstone Energy Planner & Analyst Facilities Management

"---" 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	13,670,466 Kilowatt-hours	46,643.63 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems)	40,799.90 Kilowatt-hours	139.21 MMBtu

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

	MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy	86,901.74 MMBtu
Imported steam, hot water, and/or chilled water	0 MMBtu

Total site energy consumption, performance year:

133,684.58 MMBtu

Performance year building space

Gross floor area of building space, performance year:

2,013,068 Gross square feet

Floor area of energy intensive space, performance year:

	Floor area
Laboratory space	42,130 Square feet
Healthcare space	10,402 Square feet
Other energy intensive space	41,453 Square feet

EUI-adjusted floor area, performance year:

2,159,585 Gross square feet

Performance year heating and cooling degree days

Degree days, performance year:

	Degree days
Heating degree days	5,666.30 Degree-Days (°F)
Cooling degree days	16.30 Degree-Days (°F)

Total degree days, performance year:

5,682.60 Degree-Days (°F)

Performance period

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

	Start date	End date
Performance period	Jan. 1, 2022	Dec. 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:

10.89 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	10,989,168.68 Kilowatt-hours	37,495.04 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems)	9,114.15 Kilowatt-hours	31.10 MMBtu

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

	MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy	134,717.40 MMBtu
Imported steam, hot water, and/or chilled water	0 MMBtu

Total site energy consumption, baseline year:

172,243.54 MMBtu

Baseline year building space

Gross floor area of building space, baseline year:

1,994,400 Gross square feet

Baseline period

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

	Start date	End date
Baseline period	July 1, 2005	June 30, 2006

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

This is the same baseline year that was used to report on this credit when Cal Poly Humboldt, then HSU, submitted its first STARS report in 2013. We continue to use this baseline to track progress in our building energy consumption.

Source energy

Source-site ratio for imported electricity:

Total energy consumption per unit of floor area:

	Site energy	Source energy
Performance year	0.07 MMBtu per square foot	0.11 MMBtu per square foot
Baseline year	0.09 MMBtu per square foot	0.12 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:

9.05

Optional Fields

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

Cal_Poly_Humboldt_STARS_Energy_and_Water_data_2022.xlsx

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

Cal Poly Office of Sustainability oversees the Green Campus program, a student organization working to reduce energy use on campus primarily through education and outreach.

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

All major buildings (Approximately 40) use a computerized building control system to regulate equipment and temperature set points based on predefined schedules. Additionally 6 campus buildings have undergone pneumatic to DDC controls conversions during the reporting year.
https://facilitymgmt.humboldt.edu/building-controls-system-replacement

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

Cal Poly Humboldt has made good progress in retrofitting LED lights on campus. Since our last report we have replaced all exterior lighting with LEDs, including bi-level lighting that further reduces energy use when areas are unoccupied. Additionally several buildings had interior LED retrofits, many funded by the Humboldt Energy Independence Fund are discussed below. Additionally the library has largely been converted to LED, the remaining south wing has identified funding and is in the project queue.

Additionally we no longer purchase T8 lamps, we have remaining stock on our warehouse that is being used, when they are gone all T8 lamps will be replaced with TLED upon failure.

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

None

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

Cal Poly no longer hosts any cogeneration facilities. Our last cogen unit failed in 2018 and has been decommission. There are no plans for any cogeneration facilities on campus.

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

Cal State University Executive Order 987 sets energy conservation goals for sustainable building practices and physical plant management, which includes utilizing life cycle costing procedures, instead of first capital cost only, as the basis for equipment selection.

The Humboldt Energy Independence Fund (HEIF) a student lead, student-fee funded program, funds sustainability projects on campus. Several energy efficiency projects that were funded in our last reporting period were installed since our last report including:
1. Heat pump conversions for space and water heating at the Campus Center for Appropriate Technology. This student demonstration house is now all electric.
2. Fisheries pumps retrofit, which replace two aged single speed water pumps with a single energy efficient pump with VFD.
3. Telonchier Marine Lab LED conversion included all interior and exterior lamps
4. Field house high bay lights. This conversion saves energy not just with the lamps but also in the operating hours and the new LED can be switched on and off without damaging the lamps. The previous HID lights were left on for 16-18 hours per day to ensure the lights were ready when needed.
5. Alistar McCrone Hall (formally Science D) all interior lamps have been replaced with TLED lamps.

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

https://heif.humboldt.edu/sustainability-projects?title=&field_sustainability_category_tid=16&field_sustainability_status_tid=All&field_sustainability_students_value=

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.