Overall Rating Silver
Overall Score 50.03
Liaison Caroline Bruno
Submission Date May 28, 2019
Executive Letter Download

STARS v2.1

Williams College
OP-1: Greenhouse Gas Emissions

Status Score Responsible Party
Complete 5.36 / 10.00 Amy Johns
Director
Zilkha Center for Environmental Initiatives
"---" indicates that no data was submitted for this field

Has the institution conducted a GHG emissions inventory that includes all Scope 1 and 2 emissions? :
Yes

Does the institution’s GHG emissions inventory include all, some or none of its Scope 3 GHG emissions from the following categories?:
All, Some, or None
Business travel Some
Commuting Some
Purchased goods and services None
Capital goods None
Waste generated in operations None
Fuel- and energy-related activities not included in Scope 1 or Scope 2 None
Other categories None

A copy of the most recent GHG emissions inventory:
A brief description of the methodology and/or tool used to complete the GHG emissions inventory, including how the institution accounted for each category of Scope 3 emissions reported above:

The GHG emissions inventory was completed using data collected from all relevant college operating departments. The calculations were conducted using the Clean Air - Cool Planet Campus Carbon Calculator.


Has the GHG emissions inventory been validated internally by personnel who are independent of the GHG accounting and reporting process and/or verified by an independent, external third party?:
Yes

A brief description of the internal and/or external verification process:

The report has been validated internally by senior staff and the campus environmental advisory committee. We use the sustainability indicator management & analysis platform(SIMAP) to keep track of our emissions.


Documentation to support the internal and/or external verification process:
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Does the institution wish to pursue Part 2 and Part 3 of this credit? (reductions in Scope 1 and Scope 2 GHG emissions):
Yes

Gross Scope 1 and Scope 2 GHG emissions:
Performance Year Baseline Year
Gross Scope 1 GHG emissions from stationary combustion 12627.60 Metric Tons of CO2 Equivalent 13382 Metric Tons of CO2 Equivalent
Gross Scope 1 GHG emissions from other sources 405 Metric Tons of CO2 Equivalent 576 Metric Tons of CO2 Equivalent
Gross Scope 2 GHG emissions from purchased electricity 5555.13 Metric Tons of CO2 Equivalent 6438 Metric Tons of CO2 Equivalent
Gross Scope 2 GHG emissions from other sources 0 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent
Total 18587.73 Metric Tons of CO2 Equivalent 20396 Metric Tons of CO2 Equivalent

Start and end dates of the performance year and baseline year (or three-year periods):
Start Date End Date
Performance Year July 1, 2017 June 30, 2018
Baseline Year July 1, 1990 June 30, 1991

A brief description of when and why the GHG emissions baseline was adopted (e.g. in sustainability plans and policies or in the context of other reporting obligations):

We adopted 1991 as our baseline because that's the earliest year that we have comprehensive records.


Figures needed to determine total carbon offsets:
Performance Year Baseline Year
Third-party verified carbon offsets purchased (exclude purchased RECs/GOs) 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 sequestration due to land that the institution manages specifically for sequestration 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 offsets included above for which the emissions reductions have been sold or transferred by the institution 0 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent
Net carbon offsets 0 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent

A brief description of the offsets in each category reported above, including vendor, project source, verification program and contract timeframes (as applicable):
---

Emissions reductions attributable to Renewable Energy Certificate (REC) or Guarantee of Origin (GO) purchases:
Performance Year Baseline Year
Emissions reductions attributable to REC/GO purchases 0 Metric Tons of CO2 Equivalent 0 Metric Tons of CO2 Equivalent

A brief description of the purchased RECs/GOs including vendor, project source and verification program:
---

Adjusted net Scope 1 and 2 GHG emissions:
Performance Year Baseline Year
Adjusted net Scope 1 and 2 GHG emissions 18587.73 Metric Tons of CO2 Equivalent 20396 Metric Tons of CO2 Equivalent

Figures needed to determine “Weighted Campus Users”:
Performance Year Baseline Year
Number of students resident on-site 1966 1925
Number of employees resident on-site 106 124
Number of other individuals resident on-site and/or staffed hospital beds 70 0
Total full-time equivalent student enrollment 2073 2056
Full-time equivalent of employees (staff + faculty) 1125 818
Full-time equivalent of students enrolled exclusively in distance education 0 0
Weighted campus users 2986.50 2667.75

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 6.22 Metric Tons of CO2 Equivalent 7.65 Metric Tons of CO2 Equivalent

Percentage reduction in adjusted net Scope 1 and Scope 2 GHG emissions per weighted campus user from baseline:
18.59

Gross floor area of building space, performance year:
2996585 Gross Square Feet

Floor area of energy intensive building space, performance year:
Floor Area
Laboratory space 247000 Square Feet
Healthcare space 13000 Square Feet
Other energy intensive space 24707 Square Feet

EUI-adjusted floor area, performance year:
3541292 Gross Square Feet

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

Scope 3 GHG emissions, performance year:
Emissions
Business travel 4191 Metric Tons of CO2 Equivalent
Commuting 1380 Metric Tons of CO2 Equivalent
Purchased goods and services ---
Capital goods ---
Fuel- and energy-related activities not included in Scope 1 or Scope 2 ---
Waste generated in operations ---
Other categories ---

A brief description of the institution’s GHG emissions reduction initiatives, including efforts made during the previous three years:

Williams actively invests in energy conservation and efficiency projects in campus buildings. We burned lower emitting fossil fuels in our central heating plant.


The website URL where information about the programs or initiatives is available:
---

Additional documentation to support 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 and complete the Data Inquiry Form.