Greenhouse Gas Overview and Inventory
MORNING AND AFTERNOON SESSIONS
GHG Emissions Overview
The GHG Protocol defines emissions in three scopes to help organizations understand the boundaries of their emissions
Scope 1 Emissions
Scope 1 emissions are caused by the emitter burning fuels and releasing gases in day-to day operations
Stationary Combustion
Emissions from fossil fuel combustion at stationary emissions sources such as buildings or generators
Mobile Combustion
Emissions from burning diesel or gasoline in vehicles with internal combustion engines
Fugitive Emissions
Greenhouse gases leaking from processes like refrigeration and manufacturing
Forest, Land, and Agricultural (FLAG) Emissions
Emissions from changes in land use or management and land-based carbon sinks
�Emissions
=
��Fuel used (gal, therms, etc.)
��Emission Factor (mtCO2e/unit)
X
CO2e
�Emissions
=
��Refrigerant leakage (lbs)
��Emission Factor (Global Warming Potential)
X
CO2e
�Emissions
=
��Fuel used (Gallons)
��Emission Factor (mtCO2e/unit)
X
CO2e
�Emissions
=
Activity Data (e.g. kg of fertilizer)
��Emission Factor (mtCO2e/unit)
X
CO2e
Lafayette’s main Scope 1 emission sources
Scope 2 Emissions
Scope 2 emissions are indirect emissions caused by the purchase of electricity or steam from a third party. There are two
methodologies to calculate these emissions, location-based (utilizing grid average emission factors) and market-based
(incorporating market instruments and residual mix emission factors).
4
��Metered electricity consumption (MWh)
X
��eGRID emission factor (MTCO2e/MWh)
��Organization’s Scope 2 Emissions
=
Represents grid average emissions factor without factoring any contractual purchase and is not supplier-specific
X
Organization’s Scope 2 Emissions
=
Represents emission factor associated with grid after all RE has been claimed. RE purchases are removed to avoid double-counting. This can vary based on the data hierarchy
RECs purchased
(MWh)
Residual mix factor
�Metered electricity consumption (MWh)
-
Location Based
Market Based
*REC = Renewable Energy Credit, certifies 1 MWh of RE usage. A REC is a type of Environmental Attribute Credit (EAC)
Scope 3 Emissions
Scope 3 emissions are the most difficult to quantify, so the GHG protocol provides guidance on how to define emissions in an organization’s value chain
CATEGORY 3 Fuel & energy-related activities (not included in scopes 1 or 2) Upstream emissions of purchased fuels and electricity (extraction, production, & transportation of fuels consumed by the emitter).
CATEGORY 1 Purchased goods and services Emissions from activities up to manufacturing of raw materials, parts & containers / packaging materials.
CATEGORY 2 Capital goods Extraction, production, and transportation of capital goods purchased or acquired
CATEGORY 4 Upstream transportation & distribution Transportation and distribution of products and services purchased by the organization between the organization’s major suppliers and its own operations (in vehicles and facilities not owned or controlled by the organization).
CATEGORY 5 Waste generated in operations Disposal and treatment of waste generated during operations (in facilities not owned or controlled by the emitter).
CATEGORY 6 Travel Transportation of employees for business-related activities in non- organization owned vehicles.
CATEGORY 7 Employee commuting Transportation of employees between their homes and their worksites (in vehicles not owned or operated by the organization).
CATEGORY 8 Upstream leased assets Operation of assets leased by the organization in the reporting year and not included in scope 1 and scope 2.
Upstream
Indirect GHG emissions occurring before organization’s operations
Relevant to Lafayette
Partially included already
Although Second Nature only requires Commuting and Air Travel categories to be reported, a significant portion of Lafayette’s emissions come from other categories. Inclusion in GHG inventory ensures alignment with best practices
Scope 3 Emissions
Scope 3 emissions are the most difficult to quantify, so the GHG protocol provides guidance on how to define emissions in an organization’s value chain
CATEGORY 9 Downstream transportation & distribution Transportation and distribution of products sold by the emitter between its operations and the end consumer (if not paid for by the emitter)
CATEGORY 10 Processing of sold products Processing of intermediate products sold by downstream companies (e.g., manufacturers).
CATEGORY 11 Use of sold products End use of goods and services sold by the organization.
CATEGORY 12 End-of-life treatment of sold products Waste disposal and treatment of products sold by the company at the end of their life.
CATEGORY 15 Investments Operation of investments (including equity and debt investments and project finance), not included in scope 1 or scope 2.
Downstream
Indirect GHG emissions occurring after an organization’s operations
Relevant to Lafayette
Partially included already
CATEGORY 14 Franchises Operation of franchises, not included in scope 1 and scope 2 – reported by Franchisor.
CATEGORY 13 Downstream leased assets Operation of assets owned by the emitter (lessor) and leased to others, not included in scope 1 and scope 2 – reported by lessor.
Although Second Nature only requires Commuting and Air Travel categories to be reported, a significant portion of Lafayette’s emissions come from other categories. Inclusion in GHG inventory ensures alignment with best practices
Lafayette’s GHG Emissions Over Time
Highlights
*2024 Scope 3 calculations are in progress, will increase significantly
Lafayette Market-Based Emissions
Source: Lafayette Office of Sustainability; Lafayette SIMAP
Lafayette uses a reporting platform called SIMAP, which is used by higher education institutions to report against a global accounting framework (World Resources Institute)
Lafayette Scope 1 & 2 GHG Emissions
As part of CAP 2.0, Lafayette addressed Scope 2 emissions with a Virtual Power Purchase Agreement
Scope | Emission Source | Data Type | Notes |
Scope 1 | Natural Gas - stationary combustion | Activity Data (MMBtu of Natural Gas) | Emissions from combustion of natural gas in Lafayette owned assets |
Scope 1 | Distillate Oil - stationary combustion | Activity Data (gallons of fuel) | Emissions from combustion of diesel in Lafayette owned assets |
Scope 1 | Propane - stationary combustion | Activity Data (gallons of fuel) | Emissions from combustion of propane in Lafayette owned assets |
Scope 1 | University Fleet – mobile combustion (B5, diesel, gasoline & propane) | Activity Data (gallons of fuel) | Emissions from combustion of fuels in Lafayette owned vehicles |
Scope 1 | Refrigerants – fugitive emissions (HCFC-22, HFC-134a, R-408a, R-404a) | Activity Data (pounds of refrigerant) | Emissions associated with the leakage of HFCs, extremely potent greenhouse gases, from Lafayette owned assets |
Scope 1 | Fertilizer – FLAG emissions | Activity Data (pounds of fertilizer, Nitrogen %) | Emissions associated with the release of the GHG gas nitrous oxide (N2O) formed from the nitrogen within fertilizers used by Lafayette |
Scope 2 | Purchased Electricity | Activity Data (kWh of electricity) | Lafayette purchases unbundled RECs to the amount of electricity it consumes such that Scope 2 market-based emissions are zero |
Lafayette Scope 3 GHG Emissions
Lafayette utilizes SIMAP, a GHG accounting platform developed for higher education institutions
Scope 3 Category | Completeness Estimate | Historical Scope 3 Estimates | Updates to FY24 Scope 3 Estimates |
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(3) Fuel- and energy-related activities | |
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(4) Upstream Transportation & Distribution | |
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(5) Waste Generated in Operations | |
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(6) Business Travel | |
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New Category |
Significant Gaps |
Mostly Complete |
Lafayette Scope 3 GHG Emissions
Lafayette utilizes SIMAP, a GHG accounting platform developed for higher education institutions
Scope 3 Category | Completeness Estimate | Historical Lafayette Provided Data | Updates to FY24 Scope 3 Estimates |
(7) Employee Commuting | |
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(12) End-of-life Treatment of Sold Products* | |
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(15) Investments* | |
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*The SIMAP calculation methodologies for Category 12 and 15 are extremely limited. SIMAP indicates that it will add more data entry options for these categories in the future.
New Category |
Significant Gaps |
Mostly Complete |
Calculation Maturity of Scope 3
Scope 3 emissions are difficult to quantify, but there are higher levels of calculation maturity to which Lafayette can aspire
Principles
Increasing Complexity
Increasing Certainty
Use actual activity
data and full cradle
to gate life cycle
data provided by
others in the supply
chain. Often
requires supply
chain engagement
Use actual activity
data and generic
emission factors
from relevant
sources to calculate
emissions
Use spend as proxy
for activity data and
applies generic
emissions factors –
referred to as
“economic
environmentally
extended input
output” (EEIO)
analysis
Screening
Average
Use higher quality data for
activities where more accurate
data can be easily obtained.
Variety of approaches may be
used across GHG inventory.
Specific
Use higher quality data for
activities that are most
significant in size, risks and
opportunities.
Lafayette’s current maturity
GHG Inventory Improvements
Calculating GHG inventories is an iterative process, with many guidelines and methodologies constantly in flux. It is best practice to review methodologies and assumptions every year, and view this process with a growth mindset
GHG Protocol Revisions
The GHG protocol provides the foundation for GHG accounting and reporting
Workstream | 2025 | 2026 | 2027 | 2028 |
Corporate Standard | | | Final Standard | |
Scope 2 Guidance | | | Final Guidance | |
Scope 3 Guidance | | | Final Guidance | |
Actions and Market Instruments | | | | Final Guidance |
Land Sector and Removals | Final Guidance | | | |
Lafayette Impact: As we work through CAP 3.0 decarbonization strategy, we will continue monitoring GHG protocol revisions that may impact long-term applicability (i.e., solution geography/durability, interim carbon targets)
Emissions Compared to Peers
Lafayette’s emissions are higher than their peers, but others are not reporting Scope 3 category 1 emissions
Emissions Category | Lafayette | Bucknell | Villanova | Colgate | Dickinson | Denison | Harvey Mudd | Richmond | Hamilton |
Co-gen Electricity |
| 7,686 | 2,533 |
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Co-gen Steam |
| 17,241 | 3,149 |
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Other On-Campus Stationary | 8,226 | 941 | 16,154 | 5,614 | 3,023 | 7,617 | 2,224 | 10,408 | 5,603 |
Direct Transportation | 327 | 479 | 760 | 443 | 187 | 290 | 39 | 335 | 319 |
Refrigerants & Chemicals | 49 | 1,273 | 839 | 156 | 142 |
|
|
| 365 |
Fertilizer & Animals | 2 |
| 15 | 14 | 67 | 43 | 1 |
| 6 |
Purchased Electricity | - | 229 | 15,704 |
| 557 | 8,253 | 1,551 | 1,044 | 3,056 |
Faculty Commuting | 354 | 180 | 1,264 | 1,351 |
|
| 496 | 584 | 251 |
Staff Commuting |
| 1,800 | 3,910 |
| 559 | 1,260 |
| 2,285 |
|
Student Commuting |
| 11 | 5,001 |
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|
|
| 500 |
|
Directly Financed Air Travel | 241 | 1,900 | 5,385 | 380 | 57 | 2,351 | 1,646 | 1,555 | 172 |
Other Directly Financed Travel |
| 22 | 355 | 696 | 13 |
| 11 | 298 | 165 |
Study Abroad Air Travel | 1,683 | 156 | 3,300 |
| 55 |
| 228 | 4,101 |
|
Student Travel to/from Home |
|
| 5,049 |
|
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|
| 644 |
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Solid Waste | 623 | 154 | 19 | 504 | 33 | 358 | 231 | 213 | 164 |
Wastewater | 356 |
|
|
| 21 | 85 |
| 187 | 23 |
Paper Purchasing |
| 99 |
|
| 57 | 37 |
| 79 |
|
T&D Losses | 451 | 56 | 844 |
| 221 | 515 | 78 | 701 | 166 |
FERA | 3,304 |
| 8,819 |
|
| 3,126 | 898 | 4,205 |
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Food |
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Other Purchases / Services | 14,411 |
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Total | 30,025 | 7,298 | 67,419 | 9,158 | 4,992 | 23,937 | 7,405 | 27,140 | 10,289 |
Scope 1
Scope 2
Scope 3