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
Complete 3.75 / 6.00 Jeremiah Eilers
Environmental Systems Specialist
Faciliteis Management
"---" indicates that no data was submitted for this field

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

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

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)

Start and end dates of the performance year (or 3-year period):
Start date End date
Performance period Jan. 1, 2021 Dec. 31, 2021

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

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

Gross floor area of building space, baseline year:
3,594,917 Gross Square Feet

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-site ratio for imported electricity:
3

Total energy consumption per unit of floor area:
Site energy Source energy
Performance year 0.11 MMBtu / GSF 0.18 MMBtu / GSF
Baseline year 0.12 MMBtu / GSF 0.22 MMBtu / GSF

Percentage reduction in total source energy consumption per unit of floor area from baseline:
18.68

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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