MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

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MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Transcript of MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Page 1: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

MARAMA Training on NSR/PSD/GHGMarch 27, 2012Himanshu Vyas

Page 2: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

PSD Terms Subject to Regulation‐ Any pollutant subject to regulation under the Act, except Hazardous Air Pollutants (CAA Section 112)

Baseline Actual Emissions (BAE)‐ The emissions before the change to the facility takes place. 

Significant‐ A rate of emissions (TPY) that would equal or exceed any of the rates listed in 40 CFR 52.21 b(23)

Electric Utility Steam Generating Units (EGUs)‐ any steam electric generating unit that is constructed for the purpose of supplying more than one‐third of its potential electric output capacity and more than 25 MW electrical output to any utility power distribution system for sale.  52.21b(31). 

Page 3: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

How is PSD Triggered? In order to trigger PSD:

1.  Pollutant must be subject to regulation*&

2.  Facility is major (250/100 tpy)**&

3.  Significant increase (step 1)&

4.  Significant NET emissions increase (step 2)

*Important for GHGs!**unless modification itself > 250/100 TPY

Page 4: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

What is Step 1? Step 1 for PSD compares emissions before the change to 

emissions after the change

Step 1: first half of the  “Applicability Equation”: 

Post‐Change Emissions – Baseline Actual Emissions =           Emissions  Increase or  Decrease.

If  the increase is not significant   here.

If the increase is significant then                  to step 2

Page 5: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Baseline Actual Emissions (BAE)

Average of any consecutive 24‐month period in last 10 years (5 for EGUs*) selected by owner/operator

Calculated on a unit‐by‐unit basis

*can be extended to 10 years if facility demonstrates it is more representative of normal source operation

Page 6: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

BAE: Important Points BAE DOES include:

Startup, Shutdown, and Malfunction emissions Fugitive emissions* Adjusted emissions for new applicable requirements (except for 

EGUs)

BAE DOES NOT include: Emissions in excess of a legally enforceable limit

* All major sources must include fugitive emissions when calculating whether a physical change or change in operations constitutes a "major modification" subject to NSR requirements, regardless if they are section 302(j) sources

Page 7: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Fugitive Emission Notes: On March 8, 2011, the U.S. Environmental Protection Agency (EPA) 

issued an interim rule to stay a December 2008 rule known as “ the Fugitive Emissions Rule.”

The Fugitive Emissions Rule required fugitive emissions to only be included in an applicability determination when sources are  within industries that have been designated through rulemaking under section 302(j) of the Act (so‐called “section 302(j) sources")

As a result, the stay reverts the requirements back to those in the NSR Rules that existed prior to the December 2008 rule:  

Presently, all major sources must include fugitive emissions when calculating whether  a physical change or change in operations constitutes  a "major modification" subject to NSR requirements, regardless if they are section 302(j) sources.

Page 8: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

BAE: Important Points (cont’d) When a project involves multiple emissions units the same 24‐month period must be used to determine BAE, however, a different 24‐month period can be used for each pollutant.

Where federal NANSR rules not incorporated by reference (IBR’d), state rules may differ.  

Page 9: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Establishing a 24‐month period for one pollutant 

2011 2010 2009 2008 2007 2006 2005 2004 2003 2002Emissionunit A

Emissionunit B

Emissionunit C

Emissionunit D

Baseline Actual Emissions Example: Multiple emissions units/one pollutant

“Look back" for EGUs (5YRS)“Look back” for non‐EGUs

For  EGUs: Any desired 24 month period past  the 5 year look back must be justified

Page 10: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Establishing a 24‐month period for individual pollutants Emissionunit 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002

A

B

C

D

Baseline Actual Emissions Example: Multiple emissions units/ one pollutant

“Look back" for EGUs (5YRS)“Look back” for non‐EGUs

For  EGUs: Any desired 24 month period past  the 5 year look back must be justified

Page 11: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Establishing a 24‐month period for individual pollutants Emissionunit 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002

A

B

C

D

Baseline Actual Emissions Example: Multiple emissions units/ one pollutant

“Look back" for EGUs (5YRS)“Look back” for non‐EGUs

For  EGUs: Any desired 24 month period past  the 5 year look back must be justified

Page 12: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Baseline Actual EmissionsNon‐EGUs

Establishing a 24‐month period for  each different pollutant 

Pollutant 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002

A. NOx

B. VOC

C. SO2

D. PM‐10

Page 13: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Baseline Actual EmissionsNon‐EGUs

Establishing a 24‐month period for  each different pollutant 

Pollutant 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002

A. NOx

B. VOC

C. SO2

D. PM‐10

Page 14: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Example – PSD Step 1Unit 1 Actual NOx Emissions

Year 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002

(TPY) 80 20 45 30 65 50 75 60 40 3524monthavg

Calculate 24‐month averages 

Will the facility want to pick a high BAE or low BAE?

Page 15: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Example (cont’d)Unit 1 Actual NOx Emissions

Year 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002

(TPY) 80 20 45 30 65 50 75 60 40 3524monthavg 50

Page 16: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Example (cont’d)Unit 1 Actual NOx Emissions

Year 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002

(TPY) 80 20 45 30 65 50 75 60 40 3524monthavg 50 32.5

Page 17: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Example (cont’d)Unit 1 Actual NOx Emissions

Year 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002

(TPY) 80 20 45 30 65 50 75 60 40 3524monthavg 50 32.5 37.5

Page 18: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Example (cont’d)Unit 1 Actual NOx Emissions

Year 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002

(TPY) 80 20 45 30 65 50 75 60 40 3524monthavg 50 32.5 37.5 47.5

Page 19: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Example (cont’d)Unit 1 Actual NOx Emissions

Year 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002

(TPY) 80 20 45 30 65 50 75 60 40 3524monthavg 50 32.5 37.5 47.5 57.5

Page 20: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Example (cont’d)Unit 1 Actual NOx Emissions

Year 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002

(TPY) 80 20 45 30 65 50 75 60 40 3524monthavg 50 32.5 37.5 47.5 57.5 62.5

Page 21: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Example (cont’d)Unit 1 Actual NOx Emissions

Year 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002

(TPY) 80 20 45 30 65 50 75 60 40 3524monthavg 50 32.5 37.5 47.5 57.5 62.5 67.5

Page 22: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Example (cont’d)Unit 1 Actual NOx Emissions

Year 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002

(TPY) 80 20 45 30 65 50 75 60 40 3524monthavg 50 32.5 37.5 47.5 57.5 62.5 67.5 50

Page 23: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Example (cont’d)Unit 1 Actual NOx Emissions

Year 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002

(TPY) 80 20 45 30 65 50 75 60 40 3524monthavg 50 32.5 37.5 47.5 57.5 62.5 67.5 50 37.5

Page 24: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Example (cont’d)Unit 1 Actual NOx Emissions

Year 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002

(TPY) 80 20 45 30 65 50 75 60 40 3524monthavg 50 32.5 37.5 47.5 57.5 62.5 67.5 50 37.5

Highest:   67.5 TPY (2004‐2005)Lowest:     32.5 TPY (2009‐2010)

Page 25: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

In general, a facility will want BAE to be the highest of the consecutive 24‐month periods…..

??Why??

Page 26: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Example (cont’d)If a units emissions after the change are 80 TPY:

80 TPY – 67.5 TPY = 12.5 TPY…does not trigger PSD for NOx

80 TPY – 32.5 TPY = 47.5 TPY…DOES trigger PSD for NOx before netting (step 2)

A higher BAE means a lower emissions increase.

Page 27: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Important Points

24‐month average does not need to be based on calendar  years, used in example for simplicity.

Page 28: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

STEP 1Now you know how to calculate emissions BEFOREthe change, but how do you calculate emissions 

AFTER the change?

…that’s in the next presentation!

Page 29: MARAMA Training on NSR/PSD/GHG March 27, 2012 Himanshu Vyas

Questions/Comments/DiscussionHimanshu Vyas215‐814‐2112