EC Enterprise: Importing and assigning updated GHG Emission Factors
Posted by Matthew Heinz, Last modified by Barry Kroeker on 18 August 2017 09:23 AM
Issue: Importing and assigning updated GHG emission factors
Resources for updated GHG emission factors:
o eGRID2010 - State Aggregation Table
o eGRID2010 - Subregion Aggregation Table
GHG Update Process:
1. Download the XML files by visiting the EnergyCAP downloads site and use the following credentials:
Username: energycap62 Password: upgradeto62
2. Navigate by expanding the respective folders: EnergyCAP Enterprise --> GHG Emission Factors. Download the desired XML file or the GHG Emission Factor XMLs zip folder. The zip folder contains all of the individual XML files.
GHG XML file notes:
b. GHG_Canada_NIR 1990-2009.xml
c. GHG_Emission Factors_Direct emissions.xml
d. GHG_Emission Factors_eGRID2010_by State.xml
e. GHG_Emission Factors_eGRID2010_by Subregion.xml
f. GHG Emission Factor XMLs.zip
3. Import the downloaded XML files(s) into EnergyCAP by navigating to the Facility Manager and selecting Import GHG Factors from the Greenhouse Gas top menu.
4. Complete the following steps where applicable:
a. Set Default GHG Reporting Scope and Factor Type
b. Globally Update Scope and Factor Type for Meters/Counters
After entering new factors, please close EnergyCAP to save them. Please note that old factors are not able to be deleted.
Notes Regarding the Latest eGRID Emission Factors:
EnergyCAP, Inc. (ECI) added the greenhouse gas tracking module in 2007. During the development of the GHG module the decision was made to provide EnergyCAP users with the ability to assign emission factors by using the state address of the place, meter, or account. This feature was useful for clients having facilities spread across many different regions. The only way to add that feature was to utilize the eGRID State aggregation tables and create an emission factor for each individual state. At that time there was no means of mapping address fields (zip code, state abbreviation) to the eGRID subregions.
While an automated mapping tool for place address to eGRID subregion is currently not available in EnergyCAP, we have created an eGRID by subregion XML file for clients to import if desired. Please keep in mind that the Use Place State (or meter or account state) applications will only select emission factors from the eGRID State aggregation table NOT from the subregion aggregation table.
Notes Regarding the Latest GHG Emission Intensities Released by Environment Canada:
Shortly after the initial release of the GHG module ECI began to work on an XML import file specifically for the Canadian GHG emission factors. At that time the most current Canadian GHG emission factor data was published in the National Inventory Report (NIR) 1990-2006 (May 2008). The table shown below is an example of how the data was presented in the NIR 1990-2006. There is an individual column of data for every year from 1990 through 2006. The NIR contains a GHG emission intensity table for each province and one that is a national summary.
Figure 1: Table A9-1 from the Canadian National Inventory Report 1990-2006
In May of 2011, Environment Canada published the National Inventory Report 1990-2009. In addition to the updates and changes to the GHG emission factors themselves, one of the most notable changes was to the format of the data provided. The initial XML file imported into EnergyCAP for clients needing to calculate emissions for Canadian facilities, contained yearly data from 1990 through 2006 and only contained GHG emission factors for generation intensities. In subsequent NIR releases the Environment Canada has averaged the 1990 to 1999 emission data into one value for the 1990's decade rather than providing a factor for each year. An equally significant change is that the NIR 1990-2009 contains consumption intensity GHG emission factor values as well as the generation intensity GHG value.
Figure 2: Table A13-1 from the Canadian National Inventory Report 1990-2009
Due to the omission of emission factors for years 1991-1999 and to the addition of the consumption intensity emission factor values, it was necessary to create new GHG applications for the Canadian emission factors. ECI has created two new sets of emission factors derived from the NIR 1990-2009 publication. One set of GHG emission factors is for the consumption intensities (CI) and the other is for the generation intensities (GI). Each set of GHG factors contains data for the following years: 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 and 2009. It is for the EnergyCAP user to decide whether to use the CI GHG factors or the GI GHG factors. If an EnergyCAP user wants to assign the GHG emission factor for a site in Nova Scotia and they want to apply the consumption intensity value, they would select the NS [CI] emission factor and run the GHG processor in EnergyCAP. Conversely they would select the NS [GI] if the generation intensity emission factor was desired.
Written By: Scott Bair, 07/21/2011