Overall Rating Gold - expired
Overall Score 68.95
Liaison Jenny McNamara
Submission Date June 30, 2016
Executive Letter Download

STARS v2.0

Portland State University
OP-8: Building Energy Consumption

Status Score Responsible Party
Complete 3.94 / 6.00 Noel Mingo
Utility Manager
"---" indicates that no data was submitted for this field

Total building energy consumption, all sources (transportation fuels excluded):
Performance Year Baseline Year
Total building energy consumption 281,211 MMBtu 487,980 MMBtu

Purchased electricity and steam:
Performance Year Baseline Year
Grid-purchased electricity 170,156 MMBtu 164,451 MMBtu
District steam/hot water 0 MMBtu 0 MMBtu

Gross floor area of building space::
Performance Year Baseline Year
Gross floor area 5,328,723 Gross Square Feet 4,666,918 Gross Square Feet

Floor area of energy intensive space, performance year::
Floor Area
Laboratory space 197,424 Square Feet
Healthcare space 4,780 Square Feet
Other energy intensive space

Degree days, performance year (base 65 °F)::
Degree days (see help icon above)
Heating degree days 3,367
Cooling degree days 686

Source-site ratios::
Source-Site Ratio (see help icon above)
Grid-purchased electricity 3.14
District steam/hot water 1.20

Start and end dates of the performance year and baseline year (or 3-year periods)::
Start Date End Date
Performance Year July 1, 2014 June 30, 2015
Baseline Year July 1, 2004 June 30, 2005

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

First year we have data for.

A brief description of any building temperature standards employed by the institution:

"Energy Conservation Guidelines adopted in 2014 call for Conditioned spaces will be heated to a temperature range of 67-70 in the winter and cooled, where applicable, to a temperature range of 72-76. Plan for the season and dress appropriately".

A brief description of any light emitting diode (LED) lighting employed by the institution:

Parking Garages have been converted to LED lighting, Lighting Retrofit Project for converting Hoffman Hall to LED lighting was approved by the Green Revolving Fund in FY 14, as was an exterior LED lighting and daylight control project for Science Building 1. All street lighting along the park blocks running through campus are also LED.

A brief description of any occupancy and/or vacancy sensors employed by the institution:

A variety of sensor are used including motion, infrared, and daylight sensors. Inside buildings as well as parking structures.

A brief description of any passive solar heating employed by the institution:

A brief description of any ground-source heat pumps employed by the institution:

Engineering Building Heat Pump System uses extraction and injection wells to provide high efficiency cooling and heating.

A brief description of any cogeneration technologies employed by the institution:

A brief description of any building recommissioning or retrofit program employed by the institution:

Millar Library and UCB underwent RX projects funded through the Green Revolving Fund (GRF). Market Center Building had an extensive retrocommissioning and building tune up

A brief description of any energy metering and management systems employed by the institution:

PSU tracks the usage through Siemens InfoCenter Suite. We also track all consumption data in UMS (Utility Manager Server). This incorporates all the billing data for water/sewer/natural gas/electricity.

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

Campus Steam Loop replaced one 1950s era boiler with two High Efficiency Steam Boilers. 6 remaining 1950s/1960s era boilers remain in place but are used only as back up systems.

A brief description of any energy-efficient landscape design initiatives employed by the institution:

Ecoroofs on Cramer Hall, ASRC, Broadway Residence Hall, and Native American Student and Community Center help cool in summer and warm in winter.

A brief description of any vending machine sensors, lightless machines, or LED-lit machines employed by the institution:

All Coca-Cola vending machines on the PSU campus are Energy STAR Efficient machines. All Coca-Cola retail coolers on the PSU campus are Energy STAR Efficient machines with EMS-55 (Energy Management System) built in. EMS-55 'smart' controllers can sense changes in the local environment and react to usage patterns, reducing energy consumption by up to 35%. Implemented in 2004, our EMS-55 is used in every piece of new equipment with a capacity of 250L and above.

Now that EMS-55 retro-fit field kits are available Coke is working to place these kits on their Energy STAR Efficient vending machines in high traffic locations throughout the PSU campus.

A brief description of other energy conservation and efficiency initiatives employed by the institution:

The website URL where information about the institution’s energy conservation and efficiency initiatives is available:

Baseline year - FY2005
Source:Utility Manager

Performance year - FY2015
Source:data PSU's Utility Manager Noel Mingo

The square footage represents all University owned properties, and includes square footage for Retail spaces in PSU fully owned and operated buildings but not utility usage for those spaces when they pay their own electricity and/or natural gas bills.

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.