Emissions factors version information

Emissions factors are released each year as versions. Each year's version includes the most up to date emissions factors available. You can select which version you would like to use on the 'Data Mgmt' tab. And remember, Tier 1 users can always customize their emissions factors on the 'Data Entry' tab.

Version 2017 2018 Coming soon - 2019 version
Date released November 2017 April 2019 To be released February 2020
 Scope 1
Stationary combustion On-campus stationary changes, new NOx emissions factors Unchanged from 2017 version Updated to current year
Transport fuels Unchanged from CCC, new NOx emissions factors Unchanged from 2017 version

Updated to current year

CH4 and N2O update for gasoline and diesel vehicles

Fertilizer Unchanged from CCC and NFT Unchanged from 2017 version Updated to current year
Animals Unchanged from CCC, n/a for NFT Unchanged from 2017 version Updated to current year
Refrigerants & chemicals Unchanged from CCC, n/a for NFT Unchanged from 2017 version

Updated to current year

Will likely offer both 100-year and 20-year GWP options

 Scope 2
Utility consumption  eGrid 2016 report (factors updated through 2014), Custom fuel mix changes from CCC eGrid 2018 report (factors updated through 2016) eGrid 2018 report (factors updated through 2016)
   Residuals for CO2 for 2013-2015 Residual emission factors for CO2 added for 2016 Residual emission factors for CO2 in 2017 by eGrid region
 Scope 3
Commuting Unchanged from CCC, new NOx emissions factors Unchanged from 2017 version

Updated to current year

CH4 and N2O update for gasoline and diesel vehicles

Business travel & study abroad Air travel CO2, new NOx emissions factors Unchanged from 2017 version

Updated to current year

CH4 and N2O update for gasoline and diesel vehicles

Student travel to/from home Air travel CO2, new NOx emissions factors Unchanged from 2017 version

Updated to current year

CH4 and N2O update for gasoline and diesel vehicles

Food New to SIMAP with GHG emissions factors. Unchanged from NFT Unchanged from 2017 version

Updated with newly available data sets

No planned changes

Paper Unchanged from CCC. N/A for NFT Unchanged from 2017 version

No planned changes

Waste & wastewater Unchanged from CCC, new nitrogen loss factors Unchanged from 2017 version

Updated to current year

No planned changes

 Sinks and offsets
Compost Unchanged from CCC. Nitrogen update for average compost N content Unchanged from 2017 version No planned changes
Non-additional sequestration Unchanged from CCC, new for nitrogen Unchanged from 2017 version No planned changes
Offsets Unchanged from CCC, new for nitrogen Unchanged from 2017 version No planned changes

Note: This table is specific to US emissions factors. The Canadian electricity emissions factors (regional and residuals) were also updated in the 2017 and 2018 versions.

 

CCC = Campus Carbon Calculator, which was the Excel version of the campus carbon footprint tool

NFT = Nitrogen Footprint Tool, which was the original Excel version of the campus nitrogen footprint tool