Overall Rating	Silver
Overall Score	55.77
Liaison	Susan Kaspari
Submission Date	July 16, 2022

STARS v2.2

Central Washington University
OP-5: Building Energy Efficiency

Status	Score	Responsible Party
	3.75 / 6.00	Jeremiah Eilers Environmental Systems Specialist Faciliteis 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	38,832,434 Kilowatt-hours	132,496.26 MMBtu
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems)	10,814 Kilowatt-hours	36.90 MMBtu

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

	MMBtu
Stationary fuels used on-site to generate electricity and/or thermal energy	241,406.20 MMBtu
Imported steam, hot water, and/or chilled water	0 MMBtu

Total site energy consumption, performance year:

373,939.36 MMBtu

Performance year building space

Gross floor area of building space, performance year:

3,503,354 Gross square feet

Floor area of energy intensive space, performance year:

	Floor area
Laboratory space	294,446 Square feet
Healthcare space	11,438 Square feet
Other energy intensive space	21,641 Square feet

EUI-adjusted floor area, performance year:

4,136,763 Gross square feet

Performance year heating and cooling degree days

Degree days, performance year:

	Degree days
Heating degree days	5,765 Degree-Days (°F)
Cooling degree days	853 Degree-Days (°F)

Total degree days, performance year:

6,618 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, 2021	Dec. 31, 2021

Metric used in scoring for Part 1

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

13.66 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	54,434,275 Kilowatt-hours	185,729.75 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	249,050.20 MMBtu
Imported steam, hot water, and/or chilled water	0 MMBtu

Total site energy consumption, baseline year:

434,779.95 MMBtu

Baseline year building space

Gross floor area of building space, baseline year:

3,594,917 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, 2018	Dec. 31, 2018

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

Our baseline year was adopted in 2018 due to the lack of accurate data collection previously.

Source energy

Source-site ratio for imported electricity:

Total energy consumption per unit of floor area:

	Site energy	Source energy
Performance year	0.11 MMBtu per square foot	0.18 MMBtu per square foot
Baseline year	0.12 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:

18.68

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:

1. Set a new standard for our BD+C Leed Certification- Minimum Level Gold.
2. Use renewable energy sources on the site of all new projects.
3. Retro Commissioning of Control System Schedules to remove any over-ridden schedules.
4. Begin the addition of new sub metering and energy tracking in buildings over 50K GSF to work toward meeting the requirements of WA HB1257.
5. Hired a Sustainability Coordinator who planned community outreach events and spread awareness of the direction CWU is headed.

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

We have construction standards for all renovations and new buildings that include Lighting Controls, Building Automation, HVAC Automation, Occupancy Sensors, LED Lights, High Efficiency Equipment, and the Addition to alternative energy sources.

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

CWU has deployed standards for Renovations and New Construction that include the use of energy efficient, dimmable LED Lighting and a sophisticated NLight lighting control system. This lighting control system utilizes audio/motion occupancy sensors in all locations, sophisticated schedules to ensure lights do not operated during unnecessary times and the addition of Daylight Harvesting Sensors near any outdoor windows.

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

CWU is in the process of completing a geothermal feasibility study with an engineering consultant to look at the potential of adding geothermal to some of our existing buildings and/or new constructions. In the meantime we plan to work toward our end goal of net zero by expanding our low temp heating water loop in preparation for the addition of adding geothermal. Additionally all new buildings are being designed to operate on low temp heating water that can easily be produced by a water-side heat pump so we can add geothermal at any time. The addition of geothermal will depend on funds available from the State of Washington.

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

None.

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

We have multiple minor works projects associated with energy consuming equipment. Most are to reduce the energy use by energy intensive spaces. One example is digitizing Phoenix Chemical Hood Airflow Valves to ensure tightened control and proper airflow measurement of system. This project is projected to reduce energy by the Labs our Science 1 building by as much as 30%.

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.