Author: Abt Associates Inc.

Date Created: 8/27/2008

Date Modified: 3/30/2011

Purpose: Monetizes Benefits/Costs from Changes in tCO2eq Emissions as a result of Proposed Existing Facilities Rule. (CBI)

File Contents:

Worksheet Contents

Variables Lists assumed constants used throughout the cost and economic impacts analysis model as well as various adjustment indexes for dollar 

years adjustments.

Table_ByYr Contains a summary table of SCC by year for three regulatory options.

SumTable_SocCost_DR Contains a summary table of annualized SCC values for three regulatory options.

SCCValsByYr

Contains SCC values in $2007/Ton CO2 and $2009/Ton CO2 from the 2010 Technical Supporting Document (2010 TSD) titled Social 

Cost of Carbon for Regulatory Impact Analysis-Under Executive Order 12866 developed by the U.S. Government Interagency Work 

Group on Social Cost of Carbon.

Option1 Contains SCC calculations by year for Option 1 (IM Everywhere)

Option2 Contains SCC calculations by year for Option 1 (IM Everywhere and EM for Facilities with DIF>125MGD)

Option3 Contains SCC calculations by year for Option 1 (I&E Mortality Everywhere)

CO2ByYr Contains IPM-based change in emissions (tCO2eq) by year for each of the three regulatory options.

IPMCO2 Containcs IPM-based Change in emissions (tCO2eq) for each IPM run year and each of the three regulatory options.

Input Files:

External data used in calculations/analysis:

EPA302ABT_PC_2b_ParsedSummary_Analysis.xls

EPA302ABT_PC_1b_ParsedSummary_Analysis.xls

EPA302ABT_PC_3c_ParsedSummary_Analysis.xls

GDP_Deflator.xls (not linked)

The original version of this file contains, or is linked to a file that contains, confidential business information (CBI), or information that could be used to 

reveal CBI. As a result, the values for any variables determined by EPA to be CBI, or that could be used to reveal CBI, have been concealed.

FileInfo 1 of 31
General Variables for Monetization of Benefits from Reductions in GHG Emissions

DollarYr 2009

Variable

Social Cost of Carbon ($/t CO2, $2006)EO 12866 Support Doc

DR Option 1: Discount Rate of 2.5%

Low

Med $36.3

High

DR Option 2: Discount Rate of 3.0%

Low

Med $22.1

High $67.1

DR Option 3: Discount Rate of 5.0%

Low

Med $4.9

High

DR Option 4

Low

Med

High

Discount Rate Values Excel Name Value Notes/Sources

DR Option 1: Discount Rate of 2.5%DR_1 2.5% Analysis option 1 is framed for a constant discount rate over time

DR Option 2: Discount Rate of 3.0%DR_2 3.0% Analysis option 2 is framed for a constant discount rate over time

DR Option 3: Discount Rate of 5.0%DR_3 5.0% Analysis option 3 is framed for a constant discount rate over time

Other Analysis Parameters

Global SCC Annual Growth Rate SCC_GR Accounts for real change in SCC due to incresed CO 2 concentrations in the atmosphere over time (IPCC)

U.S. SCC Annual Growth Rate SCC_GR_US Accounts for real change in SCC due to incresed CO 2 concentrations in the atmosphere over time (IPCC)

SCC Base Year SCC_BASE 2010 Base emissions year applicable to initial SCC values

Rule PV Year PV_YEAR 2012 Determines which year to discount back to for present value calculation

Rule Last Year LAST_YEAR 2056 Last year of emissions changes for the selected regulatory action

Rule Promulgation Year PROMULG_YEAR 2012

Discount Rate - Social DISCRATE_SOC 3.0%

Discount Rate - Prvt DISCRATE_PRIV 7.0%

Number of Years NYEARS 50 Number of years in analysis

Select Regulatory Actions

Option 1: IM-Only 2013 First year of emissions for this rule

Option 2: CT for Facilities with DIF>125 DIFMGD, Else IM-Only 2013 First year of emissions for this rule

Option 3: CT Everywhere 2013 First year of emissions for this rule

2007 GDP_Adjustment_2007_to_2009 1.033

mton_to_ston 1.10231

AnalysisYear 2015

Select Regulatory Action: Option 2: CT for Facilities with DIF>125 DIFMGD, Else IM-Only 2

Variables 2 of 31
IPMDollarYear 2006

IPM_Yr1 2015

IPM_Yr2 2020

IPM_Yr3 2025

IPM_Yr4 2028

EIA_Yr1 2003

EIA_Yr2 2004

EIA_Yr3 2005

EIA_Yr4 2006

EIA_Yr5 2007

ComplYr_IM 2015

ComplYr_CTNonNuc 2020

ComplYr_CTNuc 2025

Option 1 IM Everywhere

Option 2 IM Everywhere and EM at Facilities with DIF>125 MGD

Option 3 I&E Mortality Everywhere

Variables 3 of 31
2 8 18 21 28 2 8 18 21 28

2.5% 3.0% 3.0% 5.0% 2.5% 3.0% 3.0% 5.0%

Year

Emissions 

(tCO2eq) Average Average High Average

Emissions 

(tCO2eq) Average Average High Average

2012 0.0 $0.0 $0.0 $0.0 $0.0 0.0 $0.0 $0.0 $0.0 $0.0

2013 -0.2 -$7.2 -$4.4 -$13.5 -$1.0 -2.0 -$77.8 -$48.0 -$146.4 -$11.1

2014 -0.2 -$7.3 -$4.5 -$13.8 -$1.1 -2.0 -$79.3 -$49.0 -$149.8 -$11.6

2015 -0.2 -$7.4 -$4.6 -$14.1 -$1.1 -2.0 -$80.8 -$50.1 -$153.1 -$12.0

2016 -0.2 -$7.5 -$4.7 -$14.4 -$1.1 -2.0 -$82.0 -$51.1 -$156.5 -$12.4

2017 -0.2 -$7.7 -$4.8 -$14.7 -$1.2 -2.0 -$83.5 -$52.2 -$159.9 -$12.8

2018 0.4 $16.0 $10.0 $30.7 $2.5 34.5 $1,440.6 $902.2 $2,763.5 $224.6

2019 0.4 $16.2 $10.2 $31.3 $2.6 34.5 $1,462.0 $920.0 $2,820.6 $231.8

2020 0.4 $16.5 $10.4 $31.9 $2.7 34.5 $1,486.9 $937.8 $2,877.6 $242.5

2021 0.4 $16.8 $10.7 $32.7 $2.8 34.5 $1,515.5 $962.8 $2,945.4 $253.2

2022 0.4 $17.2 $10.9 $33.5 $2.9 34.5 $1,547.6 $984.2 $3,016.7 $263.9

2023 -1.4 -$61.9 -$39.7 -$121.2 -$10.8 56.3 $2,572.4 $1,647.0 $5,034.1 $448.1

2024 -1.4 -$63.1 -$40.5 -$123.9 -$11.1 56.3 $2,618.9 $1,681.9 $5,144.7 $459.8

2025 -1.4 -$64.3 -$41.5 -$126.7 -$11.5 56.3 $2,671.3 $1,722.7 $5,261.1 $477.2

2026 -1.4 -$65.4 -$42.3 -$129.3 -$11.9 56.3 $2,717.8 $1,757.6 $5,371.7 $494.7

2027 -1.4 -$66.6 -$43.3 -$132.0 -$12.3 56.3 $2,764.4 $1,798.3 $5,482.3 $512.1

2028 -1.4 -$70.7 -$46.0 -$140.5 -$13.3 41.4 $2,071.5 $1,348.2 $4,117.3 $389.5

2029 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,105.7 $1,373.9 $4,198.6 $402.3

2030 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,140.0 $1,403.8 $4,280.0 $415.2

2031 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,178.5 $1,429.5 $4,365.6 $428.0

2032 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,212.7 $1,459.5 $4,446.9 $440.8

2033 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,247.0 $1,485.1 $4,528.2 $453.7

2034 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,285.5 $1,515.1 $4,613.8 $466.5

2035 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,319.7 $1,540.8 $4,695.1 $479.4

2036 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,354.0 $1,570.7 $4,776.4 $492.2

2037 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,392.5 $1,596.4 $4,862.0 $505.0

2038 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,426.7 $1,622.1 $4,943.4 $517.9

2039 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,461.0 $1,652.1 $5,024.7 $530.7

2040 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,499.5 $1,677.7 $5,106.0 $543.6

2041 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,525.2 $1,703.4 $5,178.8 $556.4

2042 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,555.1 $1,729.1 $5,251.5 $569.2

2043 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,585.1 $1,750.5 $5,324.3 $582.1

2044 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,610.8 $1,776.2 $5,397.0 $594.9

2045 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,640.7 $1,801.9 $5,469.8 $607.8

2046 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,670.7 $1,823.3 $5,538.3 $620.6

2047 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,696.4 $1,848.9 $5,611.0 $633.4

2048 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,726.3 $1,874.6 $5,683.8 $646.3

2049 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,756.3 $1,900.3 $5,756.6 $659.1

2050 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,782.0 $1,921.7 $5,829.3 $672.0

Social Cost of Carbon as of 2012 (Millions; $2009) Social Cost of Carbon as of 2012 (Millions; $2009)

Discount Rate Discount Rate

Table_ByYr 4 of 31
Year

2012

2013

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026

2027

2028

2029

2030

2031

2032

2033

2034

2035

2036

2037

2038

2039

2040

2041

2042

2043

2044

2045

2046

2047

2048

2049

2050

28 18 21 28

2.5% 3.0% 3.0% 5.0%

Emissions 

(tCO2eq) Average Average High Average

0.0 $0.0 $0.0 $0.0 $0.0

-2.0 -$78.0 -$48.1 -$146.8 -$11.2

-2.0 -$79.5 -$49.1 -$150.2 -$11.6

-2.0 -$81.0 -$50.2 -$153.5 -$12.0

-2.0 -$82.3 -$51.2 -$156.9 -$12.4

-2.0 -$83.7 -$52.3 -$160.3 -$12.9

35.8 $1,496.2 $937.0 $2,870.2 $233.3

35.8 $1,518.4 $955.5 $2,929.5 $240.7

35.8 $1,544.4 $974.0 $2,988.7 $251.8

35.8 $1,574.0 $999.9 $3,059.1 $262.9

35.8 $1,607.3 $1,022.2 $3,133.1 $274.1

57.5 $2,626.6 $1,681.7 $5,140.3 $457.6

57.5 $2,674.1 $1,717.4 $5,253.2 $469.5

57.5 $2,727.6 $1,759.0 $5,372.0 $487.3

57.5 $2,775.2 $1,794.6 $5,484.9 $505.1

57.5 $2,822.7 $1,836.2 $5,597.8 $522.9

42.4 $2,119.0 $1,379.1 $4,211.8 $398.4

42.4 $2,154.1 $1,405.4 $4,295.0 $411.5

42.4 $2,189.1 $1,436.0 $4,378.2 $424.7

42.4 $2,228.5 $1,462.3 $4,465.8 $437.8

42.4 $2,263.5 $1,493.0 $4,548.9 $451.0

42.4 $2,298.6 $1,519.2 $4,632.1 $464.1

42.4 $2,338.0 $1,549.9 $4,719.7 $477.2

42.4 $2,373.0 $1,576.1 $4,802.9 $490.4

42.4 $2,408.0 $1,606.8 $4,886.1 $503.5

42.4 $2,447.4 $1,633.1 $4,973.6 $516.6

42.4 $2,482.4 $1,659.3 $5,056.8 $529.8

42.4 $2,517.5 $1,690.0 $5,140.0 $542.9

42.4 $2,556.9 $1,716.3 $5,223.2 $556.0

42.4 $2,583.1 $1,742.5 $5,297.6 $569.2

42.4 $2,613.8 $1,768.8 $5,372.0 $582.3

42.4 $2,644.4 $1,790.7 $5,446.5 $595.4

42.4 $2,670.7 $1,816.9 $5,520.9 $608.6

42.4 $2,701.3 $1,843.2 $5,595.3 $621.7

42.4 $2,732.0 $1,865.1 $5,665.4 $634.8

42.4 $2,758.3 $1,891.4 $5,739.8 $648.0

42.4 $2,788.9 $1,917.6 $5,814.2 $661.1

42.4 $2,819.6 $1,943.9 $5,888.7 $674.2

42.4 $2,845.8 $1,965.8 $5,963.1 $687.4

Social Cost of Carbon as of 2012 (Millions; $2009)

Discount Rate

Table_ByYr 5 of 31
2.5% 3.0% 3.0% 5.0% 2.5% 3.0% 3.0% 5.0%

Year

Emissions 

(tCO2eq) Average Average High Average

Emissions 

(tCO2eq) Average Average High Average

Social Cost of Carbon as of 2012 (Millions; $2009) Social Cost of Carbon as of 2012 (Millions; $2009)

Discount Rate Discount Rate

2051 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,807.9 $1,943.3 $5,903.0 $685.0

2052 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,834.1 $1,965.2 $5,977.6 $698.4

2053 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,860.5 $1,987.4 $6,053.2 $712.0

2054 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,887.1 $2,009.7 $6,129.7 $725.9

2055 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,914.0 $2,032.4 $6,207.1 $740.0

2056 0.0 $0.0 $0.0 $0.0 $0.0 41.4 $2,941.2 $2,055.3 $6,285.6 $754.4

NPV 3% -$231.5 -$149.6 -$456.6 -$41.9 $45,022.0 $29,852.9 $91,007.7 $9,222.2

Annualized, 3% -$9.0 -$5.8 -$17.7 -$1.6 $1,749.8 $1,160.2 $3,537.1 $358.4

NPV 7% -$139.7 -$90.1 -$275.0 -$25.1 $20,217.7 $13,250.9 $40,435.9 $3,929.8

Annualized 7% -$10.1 -$6.5 -$19.9 -$1.8 $1,465.0 $960.2 $2,930.0 $284.8

Table_ByYr 6 of 31
Year

2012 2051

2052

2053

2054

2055

2056

NPV 3%

Annualized, 3%

NPV 7%

Annualized 7%

2.5% 3.0% 3.0% 5.0%

Emissions 

(tCO2eq) Average Average High Average

Social Cost of Carbon as of 2012 (Millions; $2009)

Discount Rate

42.4 $2,872.3 $1,987.9 $6,038.5 $700.8

42.4 $2,899.1 $2,010.3 $6,114.8 $714.4

42.4 $2,926.1 $2,033.0 $6,192.1 $728.3

42.4 $2,953.4 $2,055.9 $6,270.3 $742.5

42.4 $2,980.9 $2,079.0 $6,349.6 $757.0

42.4 $3,008.7 $2,102.4 $6,429.8 $771.7

$46,137.9 $30,589.9 $93,255.4 $9,447.0

$1,793.2 $1,188.9 $3,624.4 $367.2

$20,746.1 $13,595.4 $41,487.9 $4,030.2

$1,503.3 $985.1 $3,006.2 $292.0

Table_ByYr 7 of 31
Summary of Global Monetized Benefits from Changes in tCO2eq Emissions, $Millions (Based on Literature-selected SCC values)

Option 2: CT for Facilities with DIF>125 DIFMGD, Else IM-Only (2012 - 2056)*

DR Option 1: 

Average Unit SCC 

Price

DR Option 2: Average Unit SCC 

Price

DR Option 2: High Unit SCC 

Price

DR Option 3: Average Unit SCC 

Price

Option

Emissions Change 

(tCO2eq)

Global Measure of 

SCC

3% Discount Rate, Global Measure of 

SCC

3% Discount Rate, Global Measure 

of SCC

5% Discount Rate, Global Measure of 

SCC

Discounted and Annualized at 3%

Option 1: IM-Only (7) ($9) ($6) ($18) ($2)

Option 2: CT for Facilities with DIF>125 DIFMGD, Else IM-Only 1,645 $1,750 $1,160 $3,537 $358

Option 3: CT Everywhere 1,685 $1,793 $1,189 $3,624 $367

Discounted and Annualized at 7%

Option 1: IM-Only ($10) ($7) ($20) ($2)

Option 2: CT for Facilities with DIF>125 DIFMGD, Else IM-Only $1,465 $960 $2,930 $285

Option 3: CT Everywhere $1,503 $985 $3,006 $292

changes used for the analysis of selected rule. For present value and 

SumTable_SocCost_DR 8 of 31
Annual ACC Values

23456789

Discount Rate 5% 3% 2.50% 3% 5% 3% 2.50% 3%

Year Avg Avg Avg 95th Avg Avg Avg 95th

2010 $4.70 $21.40 $35.10 $64.90 $4.86 $22.12 $36.28 $67.07

2011 $4.90 $21.90 $35.70 $66.50 $5.06 $22.63 $36.90 $68.73

2012 $5.10 $22.40 $36.40 $68.10 $5.27 $23.15 $37.62 $70.38

2013 $5.30 $22.80 $37.00 $69.60 $5.48 $23.56 $38.24 $71.93

2014 $5.50 $23.30 $37.70 $71.20 $5.68 $24.08 $38.96 $73.58

2015 $5.70 $23.80 $38.40 $72.80 $5.89 $24.60 $39.69 $75.24

2016 $5.90 $24.30 $39.00 $74.40 $6.10 $25.11 $40.31 $76.89

2017 $6.10 $24.80 $39.70 $76.00 $6.30 $25.63 $41.03 $78.54

2018 $6.30 $25.30 $40.40 $77.50 $6.51 $26.15 $41.75 $80.09

2019 $6.50 $25.80 $41.00 $79.10 $6.72 $26.66 $42.37 $81.75

2020 $6.80 $26.30 $41.70 $80.70 $7.03 $27.18 $43.10 $83.40

2021 $7.10 $27.00 $42.50 $82.60 $7.34 $27.90 $43.92 $85.37

2022 $7.40 $27.60 $43.40 $84.60 $7.65 $28.52 $44.85 $87.43

2023 $7.70 $28.30 $44.20 $86.50 $7.96 $29.25 $45.68 $89.40

2024 $7.90 $28.90 $45.00 $88.40 $8.16 $29.87 $46.51 $91.36

2025 $8.20 $29.60 $45.90 $90.40 $8.47 $30.59 $47.44 $93.43

2026 $8.50 $30.20 $46.70 $92.30 $8.78 $31.21 $48.26 $95.39

2027 $8.80 $30.90 $47.50 $94.20 $9.09 $31.93 $49.09 $97.35

2028 $9.10 $31.50 $48.40 $96.20 $9.40 $32.55 $50.02 $99.42

2029 $9.40 $32.10 $49.20 $98.10 $9.71 $33.17 $50.85 $101.38

2030 $9.70 $32.80 $50.00 $100.00 $10.02 $33.90 $51.67 $103.35

2031 $10.00 $33.40 $50.90 $102.00 $10.33 $34.52 $52.60 $105.41

2032 $10.30 $34.10 $51.70 $103.90 $10.64 $35.24 $53.43 $107.38

2033 $10.60 $34.70 $52.50 $105.80 $10.95 $35.86 $54.26 $109.34

2034 $10.90 $35.40 $53.40 $107.80 $11.26 $36.59 $55.19 $111.41

2035 $11.20 $36.00 $54.20 $109.70 $11.57 $37.21 $56.01 $113.37

2036 $11.50 $36.70 $55.00 $111.60 $11.89 $37.93 $56.84 $115.34

2037 $11.80 $37.30 $55.90 $113.60 $12.20 $38.55 $57.77 $117.40

2038 $12.10 $37.90 $56.70 $115.50 $12.51 $39.17 $58.60 $119.37

2039 $12.40 $38.60 $57.50 $117.40 $12.82 $39.89 $59.43 $121.33

2040 $12.70 $39.20 $58.40 $119.30 $13.13 $40.51 $60.36 $123.29

2041 $13.00 $39.80 $59.00 $121.00 $13.44 $41.13 $60.98 $125.05

2042 $13.30 $40.40 $59.70 $122.70 $13.75 $41.75 $61.70 $126.81

2043 $13.60 $40.90 $60.40 $124.40 $14.06 $42.27 $62.42 $128.56

2044 $13.90 $41.50 $61.00 $126.10 $14.37 $42.89 $63.04 $130.32

2045 $14.20 $42.10 $61.70 $127.80 $14.68 $43.51 $63.77 $132.08

2046 $14.50 $42.60 $62.40 $129.40 $14.99 $44.03 $64.49 $133.73

2047 $14.80 $43.20 $63.00 $131.10 $15.30 $44.65 $65.11 $135.49

2048 $15.10 $43.80 $63.70 $132.80 $15.61 $45.27 $65.83 $137.25

2049 $15.40 $44.40 $64.40 $134.50 $15.92 $45.89 $66.56 $139.00

2050 $15.70 $44.90 $65.00 $136.20 $16.23 $46.40 $67.18 $140.76

$2007/Ton CO2 $2009/Ton CO2

SCCValsByYr 9 of 31
Discount Rate 5% 3% 2.50% 3% 5% 3% 2.50% 3%

Year Avg Avg Avg 95th Avg Avg Avg 95th

$2007/Ton CO2 $2009/Ton CO2

2051 $16.01 $45.41 $65.61 $137.92 $16.54 $46.93 $67.80 $142.54

2052 $16.32 $45.92 $66.22 $139.66 $16.86 $47.45 $68.43 $144.34

2053 $16.64 $46.43 $66.83 $141.43 $17.19 $47.99 $69.07 $146.17

2054 $16.96 $46.96 $67.46 $143.22 $17.53 $48.53 $69.71 $148.01

2055 $17.29 $47.49 $68.08 $145.03 $17.87 $49.08 $70.36 $149.88

2056 $17.63 $48.02 $68.72 $146.86 $18.22 $49.63 $71.02 $151.78

AGR 3.1% 1.9% 1.6% 1.9% 3.1% 1.9% 1.6% 1.9%

SCCValsByYr 10 of 31
Monetization of Benefits from Changes in tCO2eq Emissions Using a Global Measure of the Social Cost of Carbon (2009 dollars)

Option 1: IM-Only

DR Option 1: Discount Rate of 2.5%

2 2.5% Discount Rate, Global Measure of SCC

Low Mid High

Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC

Emissions 

Year (tCO2eq)

Option1 11 of 31
2

Emissions 

Year (tCO2eq)

Monetization of Benefits from Changes in tCO2eq Emissions Using a Global Measure of the Social Cost of Carbon (2009 dollars)

Option 1: IM-Only

DR Option 2: Discount Rate of 3.0%

3% Discount Rate, Global Measure of SCC

Low Mid High

Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC

Option1 12 of 31
2

Emissions 

Year (tCO2eq)

Monetization of Benefits from Changes in tCO2eq Emissions Using a Global Measure of the Social Cost of Carbon (2009 dollars)

Option 1: IM-Only

DR Option 3: Discount Rate of 5.0%

5% Discount Rate, Global Measure of SCC

Low Mid High

Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC

Option1 13 of 31
Monetization of Benefits from Changes in tCO2eq Emissions Using a Global Measure of the Social Cost of Carbon (2009 dollars)

Option 1: IM-Only

DR Option 1: Discount Rate of 2.5%

2 2.5% Discount Rate, Global Measure of SCC

Low Mid High

Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC

Emissions 

Year (tCO2eq)

Option1 14 of 31
2

Emissions 

Year (tCO2eq)

Monetization of Benefits from Changes in tCO2eq Emissions Using a Global Measure of the Social Cost of Carbon (2009 dollars)

Option 1: IM-Only

DR Option 2: Discount Rate of 3.0%

3% Discount Rate, Global Measure of SCC

Low Mid High

Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC

Option1 15 of 31
2

Emissions 

Year (tCO2eq)

Monetization of Benefits from Changes in tCO2eq Emissions Using a Global Measure of the Social Cost of Carbon (2009 dollars)

Option 1: IM-Only

DR Option 3: Discount Rate of 5.0%

5% Discount Rate, Global Measure of SCC

Low Mid High

Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC

Option1 16 of 31
1 2 3 4 5 6 7 8 9 10 11 12 # 14

Monetization of Benefits from Changes in tCO2eq Emissions Using a Global Measure of the Social Cost of Carbon (2009 dollars) Monetization of Benefits from Chan

Option 2: CT for Facilities with DIF>125 DIFMGD, Else IM-Only Option 2: CT for Facilities with DIF>

DR Option 1: Discount Rate of 2.5%

3 2.5% Discount Rate, Global Measure of SCC

Low Mid High

Year Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC

Emissions 

(tCO2eq)

Option2 17 of 31
1 2

3

Year

Emissions 

(tCO2eq)

15 16 17 18 19 20 21 22 # 24 25

Monetization of Benefits from Changes in tCO2eq Emissions Using a Global Measure of the Social Cost of Carbon (2009 dollars) Monetization of Benefits from Changes in tCO2eq Emi

Option 2: CT for Facilities with DIF>125 DIFMGD, Else IM-Only Option 2: CT for Facilities with DIF>125 DIFMGD, Els

DR Option 2: Discount Rate of 3.0%

3% Discount Rate, Global Measure of SCC

Low Mid High Low

Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC

Option2 18 of 31
1 2

3

Year

Emissions 

(tCO2eq)

26 27 28 29 30 31 32

Monetization of Benefits from Changes in tCO2eq Emissions Using a Global Measure of the Social Cost of Carbon (2009 dollars)

Option 2: CT for Facilities with DIF>125 DIFMGD, Else IM-Only

DR Option 3: Discount Rate of 5.0%

5% Discount Rate, Global Measure of SCC

Mid High

PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC

Option2 19 of 31
Monetization of Benefits from Changes in tCO2eq Emissions Using a Global Measure of the Social Cost of Carbon (2009 dollars) Monetization of Benefits from Chan

Option 2: CT for Facilities with DIF>125 DIFMGD, Else IM-Only Option 2: CT for Facilities with DIF>

DR Option 1: Discount Rate of 2.5%

3 2.5% Discount Rate, Global Measure of SCC

Low Mid High

Year Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC

Emissions 

(tCO2eq)

Option2 20 of 31
3

Year

Emissions 

(tCO2eq)

Monetization of Benefits from Changes in tCO2eq Emissions Using a Global Measure of the Social Cost of Carbon (2009 dollars) Monetization of Benefits from Changes in tCO2eq Emi

Option 2: CT for Facilities with DIF>125 DIFMGD, Else IM-Only Option 2: CT for Facilities with DIF>125 DIFMGD, Els

DR Option 2: Discount Rate of 3.0%

3% Discount Rate, Global Measure of SCC

Low Mid High Low

Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC

Option2 21 of 31
3

Year

Emissions 

(tCO2eq)

Monetization of Benefits from Changes in tCO2eq Emissions Using a Global Measure of the Social Cost of Carbon (2009 dollars)

Option 2: CT for Facilities with DIF>125 DIFMGD, Else IM-Only

DR Option 3: Discount Rate of 5.0%

5% Discount Rate, Global Measure of SCC

Mid High

PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC

Option2 22 of 31
1 2 3 4 5 6 7 8 9 10 11 12 # 14

Monetization of Benefits from Changes in tCO2eq Emissions Using a Global Measure of the Social Cost of Carbon (2009 dollars) Monetization of Benefits from Changes in tCO2eq E

Option 3: CT Everywhere Option 3: CT Everywhere

DR Option 1: Discount Rate of 2.5%

4 2.5% Discount Rate, Global Measure of SCC

Low Mid High

Year Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC

Emissions 

(tCO2eq)

Option3 23 of 31
1 2

4

Year

Emissions 

(tCO2eq)

15 16 17 18 19 20 21 22 # 24 25

Monetization of Benefits from Changes in tCO2eq Emissions Using a Global Measure of the Social Cost of Carbon (2009 dollars) Monetization of Benefits from Changes in tCO2eq Emissions Using a G

Option 3: CT Everywhere Option 3: CT Everywhere

DR Option 2: Discount Rate of 3.0%

3% Discount Rate, Global Measure of SCC

Low Mid High Low

Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC

Option3 24 of 31
1 2

4

Year

Emissions 

(tCO2eq)

26 27 28 29 30 31 32

Monetization of Benefits from Changes in tCO2eq Emissions Using a Global Measure of the Social Cost of Carbon (2009 dollars)

DR Option 3: Discount Rate of 5.0%

5% Discount Rate, Global Measure of SCC

Mid High

PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC

Option3 25 of 31
Monetization of Benefits from Changes in tCO2eq Emissions Using a Global Measure of the Social Cost of Carbon (2009 dollars) Monetization of Benefits from Changes in tCO2eq E

Option 3: CT Everywhere Option 3: CT Everywhere

DR Option 1: Discount Rate of 2.5%

4 2.5% Discount Rate, Global Measure of SCC

Low Mid High

Year Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC

Emissions 

(tCO2eq)

Option3 26 of 31
4

Year

Emissions 

(tCO2eq)

Monetization of Benefits from Changes in tCO2eq Emissions Using a Global Measure of the Social Cost of Carbon (2009 dollars) Monetization of Benefits from Changes in tCO2eq Emissions Using a G

Option 3: CT Everywhere Option 3: CT Everywhere

DR Option 2: Discount Rate of 3.0%

3% Discount Rate, Global Measure of SCC

Low Mid High Low

Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC

Option3 27 of 31
4

Year

Emissions 

(tCO2eq)

Monetization of Benefits from Changes in tCO2eq Emissions Using a Global Measure of the Social Cost of Carbon (2009 dollars)

DR Option 3: Discount Rate of 5.0%

5% Discount Rate, Global Measure of SCC

Mid High

PV SCC Unit SCC Total SCC PV SCC Unit SCC Total SCC PV SCC

Option3 28 of 31
Summary of Changes in tCO2eq Emissions for Selected Regulatory Actions

Change in Emissions (tCO2eq)

Year Option 1: IM Everywhere

Option 2: IM Everywhere and EM 

for Facilities with DIF>!25 MGD Option 3: I&E Mortality Everywhere

2010

2011

2012

2013

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026

2027

2028

2029

2030

2031

2032

2033

2034

2035

2036

2037

2038

2039

2040

2041

2042

2043

2044

2045

2046

2047

2048

2049

2050

2051

CO2ByYr 29 of 31
Year Option 1: IM Everywhere

Option 2: IM Everywhere and EM 

for Facilities with DIF>!25 MGD Option 3: I&E Mortality Everywhere

2052

2053

2054

2055

2056

CO2ByYr 30 of 31
CO2 Total (Tons) 12 13 14 15

1 2 3 4 5

CO2Tones

Variable 2015 2020 2025 2028

Option 1

Option 2

Option 3

Year

PC Less BC

IPMCO2 31 of 31