Facility Name:Walter Scott Jr. Energy Center
Facility Identifier:
Facility Reporting Year:2020
Facility Location:
Address: 7215 NAVAJO ST
City: COUNCIL BLUFFS
State: IA
Postal Code: 51501

Facility Site Details:
CO2 equivalent emissions from facility subparts C-II, SS, and TT (metric tons):5,016,445.3
CO2 equivalent emissions from supplier subparts LL-QQ (metric tons):
Biogenic CO2 emissions from facility subparts C-II, SS, and TT (metric tons):0
Cogeneration Unit Emissions Indicator:N
GHG Report Start Date:2020-01-01
GHG Report End Date:2020-12-31
Description of Changes to Calculation Methodology:
Plant Code Indicator:Y
Primary NAICS Code:221112
Second Primary NAICS Code:

Parent Company Details:
Parent Company Name:NEW HAMPTION MUNICIPAL LIGHT PLANT
Address:921 North Canty Avenue, North Hampton,  IA 50659
Percent Ownership Interest:0.28
Parent Company Name:ATLANTIC MUNICIPAL UTILITIES
Address:15 W 3rd Street, P.O. Box 517, Atlantic,  IA 50022
Percent Ownership Interest:1.07
Parent Company Name:ELDRIDGE ELECTRIC & WATER UTILITIES
Address:305 N 3rd Street, P.O. Box 375, Eldridge,  IA 52748
Percent Ownership Interest:0.26
Parent Company Name:SUMNER MUNICIPAL LIGHT PLANT
Address:105 Wapsie, P.O. Box 267, Sumner,  IA 50674
Percent Ownership Interest:0.07
Parent Company Name:CORN BELT POWER COOPERATIVE
Address:1300 13th Street, P.O. Box 508, Humbolt,  IA 50548-0508
Percent Ownership Interest:4.41
Parent Company Name:BERKSHIRE HATHAWAY INC
Address:3555 Farnam Street, Omaha,  NE 68131
Percent Ownership Interest:71
Parent Company Name:LINCOLN ELECTRIC SYSTEM
Address:1040 O Street, P.O. Box 80869, Lincoln,  NE 68501-0869
Percent Ownership Interest:6.3
Parent Company Name:MONTEZUMA MUNICIPAL LIGHT & POWER
Address:501 East Main, P.O. Box 340, Montezuma,  IA 50171-0340
Percent Ownership Interest:0.21
Parent Company Name:WEST BEND MUNICIPAL UTILITIES
Address:301 S Broadway, P.O. Box 348, West Bend,  IA 50597-0348
Percent Ownership Interest:0.07
Parent Company Name:SPENCER MUNICIPAL UTILITIES
Address:712 North Grand Avenue, P.O. Box 222, Spencer,  IA 51301-0222
Percent Ownership Interest:0.57
Parent Company Name:MUNICIPAL ENERGY AGENCY OF NEBRASKA INC
Address:111 O St., Suite 200, PO Box 95124, Lincoln,  NE 68509
Percent Ownership Interest:3.44
Parent Company Name:CENTRAL IOWA POWER COOPERATIVE
Address:1400 Hwy 13 SE, P.O. Box 2517, Cedar Rapids,  IA 52406
Percent Ownership Interest:9.66
Parent Company Name:CITY OF WAVERLY
Address:1002 Adams Parkway, PO Box 329, Waverly,  IA 50677
Percent Ownership Interest:0.2
Parent Company Name:MUNICIPAL ELECTRIC UTILITY OF THE CITY OF CEDAR FALLS IOWA
Address:612 E. 12th Street, P.O. Box 769, Cedar Falls,  IA 50613-0769
Percent Ownership Interest:2.39
Parent Company Name:ALTA MUNICIPAL UTILITIES
Address:223 Main Street, Alta,  IA 51002
Percent Ownership Interest:0.07

Subpart C: General Stationary Fuel Combustion

Gas Information Details

Gas NameCarbon Dioxide
Gas Quantity7,609.3 (Metric Tons)
Own Result?

Gas NameBiogenic Carbon dioxide
Gas Quantity0 (Metric Tons)
Own Result?

Gas NameMethane
Gas Quantity0.27 (Metric Tons)
Own Result?

Gas NameNitrous Oxide
Gas Quantity0.05 (Metric Tons)
Own Result?

Unit Details:
Unit Name : GP-3
Unit Type : OCS (Other combustion source)
Unit Description :
Other Unit Name :
Small Unit Aggregation Details:
Use Ivt Indicator: N
Highest Maximum Rated Heat Input Capacity: 0.03
Cumulative Maximum Rated Heat Input Capacity:

Emission Details:
Annual CO2 mass emissions from sorbent: 0 (Metric Tons)
Annual Biogenic CO2 Emissions: 0 (metric tons)
Annual Fossil fuel based CO2 Emissions: 0 (metric tons)

Tier Fuel Details:
Fuel : Motor Gasoline
Tier Name : Tier 1 (Equation C-1)
Tier Methodology Start Date : 2020-01-01
Tier Methodology End Date : 2020-12-31

Fuel Emission Details :
Total CO2 emissionsTotal CH4 emissionsTotal N2O emissionsTotal CH4 emissions CO2eTotal N2O emissions CO2e
1.9 (Metric Tons) 0.00 (Metric Tons) 0.000 (Metric Tons) 0 (Metric Tons) 0 (Metric Tons)

Equation C1/C8 Inputs :
Fuel Quantity : 221 (gallons/year)

Unit Name : 4 Aux Boiler
Unit Type : OB (Boiler, other)
Unit Description :
Individual Unit Details:
Use Ivt Indicator: N (EGU)
Maximum Rated Heat Input Capacity: 343.3 (mmBtu/hr)

Emission Details:
Annual CO2 mass emissions from sorbent: 0 (Metric Tons)
Annual Biogenic CO2 Emissions: 0 (metric tons)

Tier Fuel Details:
Fuel : Natural Gas (Weighted U.S. Average)
Tier Name : Tier 1 (Equation C-1)
Tier Methodology Start Date : 2020-01-01
Tier Methodology End Date : 2020-12-31

Fuel Emission Details :
Total CO2 emissionsTotal CH4 emissionsTotal N2O emissionsTotal CH4 emissions CO2eTotal N2O emissions CO2e
1765.6 (Metric Tons) 0.03 (Metric Tons) 0.003 (Metric Tons) 0.8 (Metric Tons) 1 (Metric Tons)

Equation C1/C8 Inputs :
Fuel Quantity : 32433000 (scf/year)

Unit Name : GP-2
Unit Type : OCS (Other combustion source)
Unit Description :
Other Unit Name :
Small Unit Aggregation Details:
Use Ivt Indicator: N
Highest Maximum Rated Heat Input Capacity: 0.73
Cumulative Maximum Rated Heat Input Capacity:

Emission Details:
Annual CO2 mass emissions from sorbent: 0 (Metric Tons)
Annual Biogenic CO2 Emissions: 0 (metric tons)
Annual Fossil fuel based CO2 Emissions: 0 (metric tons)

Tier Fuel Details:
Fuel : Distillate Fuel Oil No. 2
Tier Name : Tier 1 (Equation C-1)
Tier Methodology Start Date : 2020-01-01
Tier Methodology End Date : 2020-12-31

Fuel Emission Details :
Total CO2 emissionsTotal CH4 emissionsTotal N2O emissionsTotal CH4 emissions CO2eTotal N2O emissions CO2e
5841.8 (Metric Tons) 0.24 (Metric Tons) 0.047 (Metric Tons) 5.9 (Metric Tons) 14.1 (Metric Tons)

Equation C1/C8 Inputs :
Fuel Quantity : 572363 (gallons/year)


Subpart D: Electricity Generation

Gas Information Details

Gas NameCarbon Dioxide
Gas Quantity4,969,737.9 (Metric Tons)
Own Result?

Gas NameBiogenic Carbon dioxide
Gas Quantity0 (Metric Tons)
Own Result?

Gas NameMethane
Gas Quantity571.48 (Metric Tons)
Own Result?

Gas NameNitrous Oxide
Gas Quantity83.186 (Metric Tons)
Own Result?

Unit Details:

Unit Name : 4
Unit Type : Electricity Generator
Unit Description :
Plant Code : 1082 (numeric, maximum of 6 digits)
Part 75 Methodology : CEMS
Methodology Start Date: 2007-03-01
Methodology End Date: 2020-12-31
Acid Rain Program Indicator: Y

Emission Details:
Annual CO2 Emissions Including Biomass (metric tons): 2378093.2
Annual CO2 Emissions Including Biomass (short tons): 2621372.3
Annual CO2 Emissions from Biomass (metric tons): 0

CEMS Details:
Operating Hours CO2 Concentration Substituted: 20
Operating Hours Stack Gas Flow Rate Substituted: 2
Operating Hours Stack Gas Moisture Substituted:

Electricity Fuel Details:
Fuel type: Subbituminous
Annual heat input:  24888412 (mmBtu)
CH4 Emissions CO2 Equivalent:  6844.3  (Metric Tons)
N2O Emissions CO2 Equivalent:  11866.8  (Metric Tons)

Fuel type: Distillate Fuel Oil No. 2
Annual heat input:  105619 (mmBtu)
CH4 Emissions CO2 Equivalent:  7.9  (Metric Tons)
N2O Emissions CO2 Equivalent:  18.9  (Metric Tons)


Unit Name : 3
Unit Type : Electricity Generator
Unit Description :
Plant Code : 1082 (numeric, maximum of 6 digits)
Part 75 Methodology : CEMS
Methodology Start Date: 1994-12-20
Methodology End Date: 2020-12-31
Acid Rain Program Indicator: Y

Emission Details:
Annual CO2 Emissions Including Biomass (metric tons): 2591644.7
Annual CO2 Emissions Including Biomass (short tons): 2856770.1
Annual CO2 Emissions from Biomass (metric tons): 0

CEMS Details:
Operating Hours CO2 Concentration Substituted: 22
Operating Hours Stack Gas Flow Rate Substituted: 0
Operating Hours Stack Gas Moisture Substituted:

Electricity Fuel Details:
Fuel type: Subbituminous
Annual heat input:  26959061 (mmBtu)
CH4 Emissions CO2 Equivalent:  7413.7  (Metric Tons)
N2O Emissions CO2 Equivalent:  12854.1  (Metric Tons)

Fuel type: Distillate Fuel Oil No. 2
Annual heat input:  279398 (mmBtu)
CH4 Emissions CO2 Equivalent:  21.0  (Metric Tons)
N2O Emissions CO2 Equivalent:  50.0  (Metric Tons)