Overall Rating	Gold - expired
Overall Score	72.07
Liaison	Katie Koscielak
Submission Date	May 7, 2020

STARS v2.2

Cal Poly Humboldt
OP-5: Building Energy Efficiency

Status	Score	Responsible Party
	2.55 / 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	13,927,245 Kilowatt-hours	47,519.76 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems)	31,607.41 Kilowatt-hours	107.84 MMBtu

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

	MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy	112,042 MMBtu
Imported steam, hot water, and/or chilled water	0 MMBtu

Total site energy consumption, performance year:

159,669.60 MMBtu

Performance year building space

Gross floor area of building space, performance year:

1,999,609 Gross square feet

Floor area of energy intensive space, performance year:

	Floor area
Laboratory space	41,964 Square feet
Healthcare space	10,630 Square feet
Other energy intensive space	29,513 Square feet

EUI-adjusted floor area, performance year:

2,134,310 Gross square feet

Performance year heating and cooling degree days

Degree days, performance year:

	Degree days
Heating degree days	4,916 Degree-Days (°F)
Cooling degree days	6 Degree-Days (°F)

Total degree days, performance year:

4,922 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, 2018	June 30, 2019

Metric used in scoring for Part 1

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

15.20 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 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	0.08 MMBtu per square foot	0.13 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:

Optional Fields

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

HSU_STARS_energy_and_water_data-FY1819.xlsx

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

HSU Office of Sustainability oversees the Green Campus program, a student organization working to reduce energy use on campus primarily through education and outreach. One of Green Campus's primary programs is Power Down HSU, during which the campus community is encouraged to conserve energy during the day.

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:

In the reporting period Facilities Management committed to stop the bulk purchase of T8 fluorescent lamps to stock in its warehouse, stocking TLED lamps instead. Facilities is still working through its stock of fluorescent T8. The Humboldt Energy Independence Fund (HEIF) has also approved funding for several LED conversions throughout campus including exterior building lighting, cobrahead street lighting and inside the Student Recreation Center field house.

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:

Housing has a 350 kW natural gas engine co-generation plant. Process heat is used to heat a building heating loop that services two residential building complexes and the Jolly Giant Commons (JGC). The plant generates electricity for the JGC and two residential building complexes. When electricity output is greater than usage in these areas, excess goes onto the main campus grid.
In August 2018, the cogen engine failed and has been off line since. Currently there not plans to repair, but the data are included here since it was in operation during part of the reporting period.

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. In the reporting period HEIF approved funding for several energy efficiency projects including:
-LED lighting retrofit for Student Recreation Center field house (mentioned previously)
-Retrofit of water pumps and control system at fish hatchery, which will replace older constant speed pumps with more efficient variable speed pumps and an updated control system which will save energy and allow for better operation of the fish hatchery.
-Mini-split heat pump at the Campus Center for Appropriate Technology (CCAT) which will demonstrate the technology on a residential scale and set CCAT up to be an all electric building.

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

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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.