IPM Analyses of the Cross-State Air Pollution Rule (CSAPR)
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Analysis of the Final Cross-State Air Pollution Rule
On July 6, 2011, the EPA Administrator signed a Notice of Final Rulemaking for the Cross-State Air Pollution Rule (CSAPR). EPA analyzed the impact of the final CSAPR on the U.S. electric power sector using version 4.10_FTransport of the Integrated Planning Model (IPM). From this page you can download documentation for IPM v4.10_FTransport, the NEEDS database of electric generation unit records used in the modeling, and the IPM run results files.
Documentation: EPA Base Case v.4.10_FTransport
EPA Base Case v.4.10_FTransport is the IPM version that EPA used to analyze provisions considered for inclusion in the Final CSAPR as a result of comments EPA received on the CSAPR proposal, issued on July 6, 2010, and the Notice of Data Availability, announced September 1, 2010. To learn more about the v.4.10_FTransport assumptions, click the link in the first bulleted item below. It provides access to a documentation supplement which focuses on the new features and revisions found in EPA Base Case v.4.10_FTransport.
Since EPA Base Case v.4.10_FTransport builds on the last major update to the IPM model (EPA Base Case v.4.10) links to the comprehensive documentation for that version of the model are provided under the second bulleted item below.
- Download Documentation Supplement for EPA Base Case v.4.10_FTransport - Updates for the Final Cross-State Air Pollution Rule (CSAPR)
- Download Documentation for EPA Base Case v.4.10:
- Chapter 1: Introduction (PDF 260 K)
- Chapter 2: Modeling Framework (PDF 363 KB)
- Chapter 2: Appendix 2-1 Data (Excel 12.76 MB) | Appendix 2-1 Graphics (PDF 1.76 MB)
- Chapter 3: Power System Operation Assumptions (PDF 1.27 MB)
- Chapter 3: Appendix 3-9 (Excel 1.83 MB)
- Chapter 4: Generating Resources (PDF 469 K)
- Chapter 5: Emission Control Technologies (PDF 1.26 MB)
- Chapter 5: Appendix 5-1A Wet FGD (PDF 336 KB) | Appendix 5-1B SDA FGD (PDF 314 KB) | Appendix 5-2A SCR (PDF 148 KB) | Appendix 5-2B SNCR (PDF 237 KB)
- Chapter 6: Carbon Capture, Transport and Storage (PDF 419 KB)
- Chapter 7: Set-Up Parameters and Rules (PDF 108 KB)
- Chapter 8: Financial Assumptions (PDF 135 KB)
- Chapter 9: Coal (PDF 1.31 MB)
- Chapter 9: Appendix 9-3 (Excel 149 KB) | Appendix 9-4 Data (Excel, 665 KB) | Appendix 9-4 Graphics (PDF 166 KB)
- Chapter 10: Natural Gas (PDF 1.48 MB)
- Chapter 11: Other Fuels and Fuel Emission Factors (PDF 272 KB)
- Chapter 11: Appendix 11-1 (Excel 283 KB)
National Electric Energy Data System (NEEDS) v.4.10_FTransport
The National Electric Energy Data System or "NEEDS" database contains the generation unit records used to construct the "model" plants that represent existing and planned/committed units in EPA modeling applications of IPM. NEEDS includes basic geographic, operating, air emissions, and other data on these generating units.
IPM Results: IPM Run Files and Parsed Files
Download IPM run files and parsed files for the Cross-State Air Pollution Rule analysis using the links in the table below. Click on the IPM run name in the first column of the table below to download a file. The files are posted in one of two formats, a zipped archive or an excel spreadsheet, and contain the following:
- Detailed IPM input and output files (i.e., .DAT, System Summary Report, .RPE, .CAR, and TAC files) for the listed runs. Guide to content of IPM input and output files (PDF 123 KB)
IPM Run Files and Parsed Files*
IPM Run Name
IPM Run Description
TR_Base_Case_Final (Zip 4.2 MB)
Base case model run, which includes the national Title IV SO2 cap-and-trade program; NOX SIP Call regional ozone season cap-and-trade program; and settlements and state rules. This run represents conditions without the proposed CSAPR and without the rule it replaces (CAIR).
TR_Remedy_Final (Zip 1.2 MB)
This run models the air quality-assured trading final remedy described in the CSAPR Preamble.
*On August 2, 2011, EPA updated these web files to include additional information on projected regional wholesale electricity prices and unit-level electricity generation. While these are outputs of the IPM model, EPA did not rely on these specific parameters in its promulgation of the Cross-State Air Pollution Rule. However, in response to subsequent public interest, EPA is making these outputs available in these updated files.