### Re: cost estimation methods for SCR cost estimation methods for SCR Don_ Shepherd Shepherd Shepherd to: david.hurlbut 09/27/2011 07:13 AM Cc: Anita Lee, Patricia_F_Brewer 2 attachments

updated NPS SCR modified Cost manual approach for NGS #1.xlsx updated NPS SCR modified Cost manual approach for NGS #1.xlsx CCM workbook explanation.docx CCM workbook explanation.docx

David,

I have atached a new and improved version fo the in fo i sent last week:

(See attached file: updated NPS SCR modified Cost m anual approach for NGS #1.xlsx)(See attached file: CCM workbook explanatio n.docx)

Don

Don Shepherd/DENVER/N PS To David J. Hur lbut 09/21/2011 05:33 cc PM Patricia_F_B rewer@nps.gov, Lee.Anita@ep amail.epa.gov Subject cost estimat ion methods for SCR

David,

As requested, I am enclosing a hurried draft of my latest Excel workbook for estimating NGS SCR costs along with an attempt to explain what i have done:

[attachment "updated NPS SCR modified Cost Manual a pproach for NGS #1.xlsx" deleted by Don Shepherd/DENVER/NPS] [attachment "CC M workbook explanation.docx" deleted by Don Shepherd/DENVER/NP S]

I am out until next week.

Don Shepherd National Park Service Air Resources Division 12795 W. Alameda Pkwy. Lakewood, CO 80228Phone : 303

- 969

- 2075

Fax: 303-969-2822 E-Mail: don_shepherd@nps.gov

### cost estimation methods for SCR
Don_ Shepherd Shepherd Shepherd to: david.hurlbut, Anita Lee,

Patricia_F_Brewer 09/29/2011 03:51 PM

1 attachment

updated NPS SCR modified Cost manual approach for NGS #2.xlsx

Folks,

Here is my SCR cost estimation method applied to NG S#2:

(See attached file: updated NPS SCR modified Cost m anual approach for NGS #2.xlsx)

The only difference is that i used CAM data for 200 0 - 2009 because the combustion controls were added in 2010.

Don Shepherd National Park Service Air Resources Division 12795 W. Alameda Pkwy. Lakewood, CO 80228 Phone: 303-969-2075 Fax: 303-969-2822 E-Mail: don_shepherd@nps.gov

### Re: cost estimation methods for SCR cost estimation methods for SCR Don_ Shepherd Shepherd Shepherd to: david.hurlbut, Anita Lee,

Patricia_F_Brewer 09/29/2011 03:30 PM

1 attachment

updated NPS SCR modified Cost manual approach for NGS #1.xlsx

I think that the previous version used SRP's 9.8% i nterest rate instead of the Cost Manual 7% interest rate, so here is the 7% solution:

(See attached file: updated NPS SCR modified Cost m anual approach for NGS #1.xlsx)

Don Shepherd National Park Service Air Resources Division 12795 W. Alameda Pkwy. Lakewood, CO 80228 Phone: 303-969-2075 Fax: 303-969-2822 E-Mail: don_shepherd@nps.gov

Don Shepherd/DENVER/N PS To david.hurlbu t@nrel.gov 09/27/2011 08:08 cc AM Lee.Anita@ep amail.epa.gov, Patricia_F_B rewer@nps.gov Subject Re: cost est imation methods for SCR (Document li nk: Don Shepherd)

David,

I have atached a new and improved version fo the in fo i sent last week:

[attachment "updated NPS SCR modified Cost manual a pproach for NGS #1.xlsx" deleted by Don Shepherd/DENVER/NPS] [attachment "CC M workbook explanation.docx" deleted by Don Shepherd/DENVER/NP S]

DonDon

Shepherd/DENVER/N PS To David J. Hur lbut 09/21/2011 05:33 cc PM Patricia_F_B rewer@nps.gov, Lee.Anita@ep amail.epa.gov Subject cost estimat ion methods for SCR

David,

As requested, I am enclosing a hurried draft of my latest Excel workbook for estimating NGS SCR costs along with an attempt to explain what i have done:

[attachment "updated NPS SCR modified Cost Manual a pproach for NGS #1.xlsx" deleted by Don Shepherd/DENVER/NPS] [attachment "CC M workbook explanation.docx" deleted by Don Shepherd/DENVER/NP S]

I am out until next week.

Don Shepherd National Park Service Air Resources Division 12795 W. Alameda Pkwy. Lakewood, CO 80228 Phone: 303-969-2075 Fax: 303-969-2822 E-Mail: don_shepherd@nps.gov