Overall Rating Silver
Overall Score 49.64
Liaison Adam Maurer
Submission Date March 31, 2021

STARS v2.2

Seattle Central College
OP-2: Greenhouse Gas Emissions

Status Score Responsible Party
Complete 3.76 / 8.00 Adam Maurer
District Sustainability Coordinator
Office of Sustainability
"---" indicates that no data was submitted for this field

Gross Scope 1 and Scope 2 greenhouse gas (GHG) emissions:
Performance year Baseline year
Gross Scope 1 GHG emissions from stationary combustion 953.01 Metric Tons of CO2 Equivalent 801 Metric Tons of CO2 Equivalent
Gross Scope 1 GHG emissions from other sources 64.72 Metric Tons of CO2 Equivalent 98.20 Metric Tons of CO2 Equivalent
Gross Scope 2 GHG emissions from imported electricity 159.29 Metric Tons of CO2 Equivalent 180 Metric Tons of CO2 Equivalent
Gross Scope 2 GHG emissions from imported thermal energy 1,046.89 Metric Tons of CO2 Equivalent 1,865 Metric Tons of CO2 Equivalent
Total 2,223.91 Metric Tons of CO2 Equivalent 2,944.20 Metric Tons of CO2 Equivalent

Figures needed to determine net carbon sinks:
Performance year Baseline year
Third-party verified carbon offsets purchased 0 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent
Institution-catalyzed carbon offsets generated 0 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent
Carbon storage from on-site composting 0 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent
Carbon storage from non-additional sequestration 0 Metric Tons of CO2 Equivalent ---
Carbon sold or transferred 0 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent
Net carbon sinks 0 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent

A brief description of the carbon sinks, including vendor, project source, verification program and contract timeframes (as applicable):
---

Adjusted net Scope 1 and Scope 2 GHG emissions:
Performance year Baseline year
Adjusted net GHG emissions 2,223.91 Metric Tons of CO2 Equivalent 2,944.20 Metric Tons of CO2 Equivalent

Start and end dates of the performance year and baseline year (or three-year periods):
Performance year Baseline year
Start date Jan. 1, 2019 Jan. 1, 2008
End date Dec. 31, 2019 Dec. 31, 2008

A brief description of when and why the GHG emissions baseline was adopted:

As a state agency, the Seattle Colleges (including Seattle Central College) are required to report annual greenhouse gas emissions in compliance with the State Agency Climate Leadership Act. This act, passed in 2008, established greenhouse gas baseline dates and greenhouse gas reduction targets for all state agencies (2005 baseline for Seattle Colleges). However, we have set our GHG and energy baseline as 2008 for STARS considering the following; 1) this act was not passed until 2008, 2) we did not actively track or take any significant actions to mitigate our GHG emissions or utility usage until 2008, and 3) data reporting and tracking was not systematized until 2008.


Figures needed to determine “Weighted Campus Users”:
Performance year Baseline year
Number of students resident on-site 0 0
Number of employees resident on-site 0 0
Number of other individuals resident on-site 0 0
Total full-time equivalent student enrollment 4,728.30 6,213.60
Full-time equivalent of employees 902.50 911.20
Full-time equivalent of students enrolled exclusively in distance education 39.10 26.80
Weighted Campus Users 4,193.78 5,323.50

Adjusted net Scope 1 and 2 GHG emissions per weighted campus user:
Performance year Baseline year
Adjusted net Scope 1 and 2 GHG emissions per weighted campus user 0.53 Metric Tons of CO2 Equivalent 0.55 Metric Tons of CO2 Equivalent

Percentage reduction in adjusted net Scope 1 and Scope 2 GHG emissions per weighted campus user from baseline:
4.12

Gross floor area of building space, performance year:
1,029,832 Gross Square Feet

Floor area of energy intensive building space, performance year:
Floor area
Laboratory space 17,380 Square Feet
Healthcare space 0 Square Feet
Other energy intensive space 42,052 Square Feet

EUI-adjusted floor area, performance year:
1,106,644 Gross Square Feet

Adjusted net Scope 1 and 2 GHG emissions per unit of EUI-adjusted floor area, performance year:
0.00 MtCO2e / GSF

A brief description of the institution’s GHG emissions reduction initiatives:

Seattle Central completed a significant ESCO project with McKinstry on the heels of other significant projects at Seattle Central in 2016-2017, which included a sophisticated energy management system to monitor utility usage in real-time and operate all buildings at maximum efficiency.

Installed 2 new EV charger stations in early 2018.

A major LED retrofit project was complete in Broadway Edison building (457,017 sq. ft.). The project estimated 624,132 kWh savings annually. (2018)

Installed a 72kW solar PV system with made in Washington panels on the Broadway Edison building. PV solar system was estimated to produce 68,400 kWh annually. (2018)

Hot water had not been provided to the existing Mammoth unit AHU-10, a constant volume air handler with terminal hot water duct coils and space mounted electric unit heaters. Air to water heat pump was provided to the existing heating coil located in AHU-01. This measure also connected the heat pump to the Broadway Edison chilled water loop, which used to be used as a heating water loop five months of the year during which time the chiller plant was shut down. This project estimated 193,435 kWh and 1,800 klbs. savings annually. (2018)

Provided envelope air sealing to reduce air infiltration and associated steam usage in Broadway Edison. This project estimated 434 klbs. savings annually. (2018)

Several Seattle Central buildings participated and completed City of Seattle Building Tune Ups in 2019 (Broadway Edison, Science and Math, Mitchell Activity Center/Bookstore, Seattle Vocational Institute, Fine Arts Building, and Wood Construction Center). These Tune Ups require buildings more than 50,000 square feet of nonresidential space to identify and implement zero to low-investment energy-saving actions related to building operations and maintenance.

Energy and Water reduction actions taken:
Seattle Vocational Institute- rebuilt pumps (i.e. replaced bearings)
Fine Arts- a) vacuumed AHU interiors b) replaced filters, and c) restored economizer function to rooftop unit
Wood Construction Center- a) configured holiday schedule, b) reviewed building pressure control sequence and adjusted loop timing, c) reviewed spray booth sequence and adjusted timing, d) reviewed set points of radiant floor heating and adjusted sequence, e) Repaired AHU heating coil at HWS temperature when valve commanded off.


Website URL where information about the institution's GHG emissions is available:
Additional documentation to support the submission:
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CO2e emissions were calculated using the Washington State Department of Ecology Greenhouse Gas Calculator.

http://www.ecy.wa.gov/climatechange/WAleadership.htm

report run by District Business Office includes all travel expenses paid by the institution (faculty, staff, and students). It does not include institution-related activities that were not paid for by the institution and were not included in business travel.

As a state agency, Seattle Colleges must complete a Commute Trip Reduction Employer Survey and report every other year. However, we do not currently include student commuter related emissions in our GHG report.

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.