1,000 10,000 25,000 100,000 1,000 10,0

Dehumidifiers 28,945 3,817 579 153 0 0 0 0 00Window ACs 7,379,194 243,623 147,584 9,745 7,379,194 7,379,194 7,379,194 7,379,194 243,623 0 Residential Unitary ACs 2,556,198 855,321 51,124 34,213 2,556,198 2,556,198 2,556,198 0 855,321 855,3Small Commercial ACs 121,842 648,660 2,437 25,946 121,842 0 0 0 648,660 648,6Packaged Terminal AC/Heat Pumps 250,228 58,933 5,005 2,357 250,228 0 0 0 58,933 0 Ice Makers 90,473 74,408 1,809 2,976 90,473 0 0 0 74,408 0 Mobile ACs 2,868,096 2,868,096 57,362 114,724 2,868,096 2,868,096 2,868,096 0 2,868,096 2,868Refrigerated Appliances 1,762,530 350,885 35,251 14,035 1,762,530 1,762,530 1,762,530 0 350,885 350,8Small Retail Food 676,016 144,162 13,520 5,766 676,016 676,016 0 0 144,162 0 

PU Rigid Sandwhich Panels 20,708 20,708 414 828 0 0 0 0 00Commercial Refrigeration 399,067 399,067 7,981 15,963 399,067 0 0 0 399,067 399,0PU Rigid (Domestic Refrigeration) 2,420,135 2,420,135 48,403 96,805 2,420,135 2,420,135 2,420,135 0 2,420,135 2,420XPS Sheet 2,011 2,011 40 80 0 0 0 0 00XPS Boardstock 183,365 183,365 3,667 7,335 183,365 0 0 0 183,365 0

Circuit Breakers (72 kV to 345 kV) 30,665 153,323 30,665 0 0 0 153,323 107,3Gas Insulated Substations (GIS) 1,858,268 1,858,268 1,858,268 1,858,268 1,858,268All HFC Equipment 18,758,808 8,273,190 187,588 165,464 18,758,808 18,758,808 18,758,808 18,758,808 8,273,190 8,273All SF6 Equipment 1,888,932 153,323 236,117 1,888,932 1,888,932 1,888,932 1,888,932 153,323 107,3

Total: 20,596,076 19,520,436 18,844,420 9,237,462 8,399,977 7,649Percent of Total: 99.7% 94.5% 91.3% 44.7% 99.7% 90.8Equipment Type Importers ExportersRefrigeration / Air Conditioning 50 25Foams 50 25Refrigerant 15,733,523 5,247,905Blowing agent 3,025,285 3,025,285SF6 1,888,932 153,323

Total Exports Mee

Number of Entities

20,647,740 8,426,513

Total Imports Meeting Threshold (MT CO2 Eq.) Equipment Type Imports (MT CO2 Eq.) Imports per Entity Exports (MT CO2 Eq.) Exports per Entity
Threshold Definitions - Pieces of Equipment Required to Meet Thresholds

Equipment Dehumidifiers Window ACs

Residential 

Unitary ACs

Small 

Commercial 

ACs

Packaged 

Terminal 

AC/Heat Pumps Ice Makers Mobile ACs

Refrigerated 

Appliances

Small Retail 

Food

PU Rigid 

Sandwhich 

Panels

Commercial 

Refrigeration

PU Rigid 

(Domestic 

Refrigeration) XPS Sheet XPS B

Average Charge Size (MtCO2Eq) 0.3 0.8 7.1 11.4 1.1 3.3 1.2 0.2 0.9 0.1 1.0 0.8 0.01 

Thresholds (MtCO2Eq)

1000 3,779 1,224 141 88 941 302 818 5,323 1,160 12,073 1,044 1,240 82,881 

10000 37,793 12,235 1,405 878 9,411 3,017 8,176 53,234 11,602 120,727 10,441 12,396 828,805 25000 94,483 30,588 3,513 2,196 23,527 7,541 20,440 133,085 29,004 301,818 26,103 30,990 2,072,013 2

100000 377,931 122,351 14,052 8,783 94,109 30,166 81,762 532,340 116,015 1,207,271 104,410 123,960 8,288,053 9

NA = Not AvailableSource for Refrigeration and AC Equipment Charge Size: EPA (2008), U.S. EPA Vintaging Model. Version VM IO file_v4_03.25.08

Source for Circuit Breakers Charge Size: EPA (2005), High Voltage Circuit Breakers Field Study, prepared for EPA by EPRI and Eastern Resources Group.

Threshold Definitions - 2006 Equipment Import Estimates as Compared to Thresholds

Conversion: 0.083333333 bd ft/cu ft

Equipment Dehumidifiers Window ACs

Residential 

Unitary ACs

Small 

Commercial 

ACs

Packaged 

Terminal 

AC/Heat Pumps Ice Makers Mobile ACs

Refrigerated 

Appliances

Small Retail 

Food

PU Rigid 

Sandwhich 

Panels

Commercial 

Refrigeration

PU Rigid 

(Domestic 

Refrigeration) XPS Sheet XPS B

Quantity of Imports (number of units) 109,393 9,028,514 359,189 10,702 235,487 27,292 2,345,000 9,382,646 784,281 250,000 416,667 3,000,000 166,667 1,

Thresholds (MtCO2Eq)

1000 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes 

10000 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No 25000 Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes Yes No 

100000 No Yes Yes Yes Yes No Yes Yes Yes No Yes Yes No 

NA = Not AvailableSource for Mobile AC: Bureau of Transportation Statistics: Table 1-16 of http://www.bts.gov/publications/national_transportation_statistics/pdf/entire.pdf

Source for Foams: Robert Russell (2008) Personal Communication between Robert Russell of RJR Consulting and Marian Van Pelt of ICF International, April 23, 2008.

Source for All Other Equipment Types: U.S. Census Bureau, 2007. U.S. International Trade Commission (USITC) Data Web. Available at <http://dataweb.usitc.gov>. Accessed November 2007.

MtCO2Eq Imported in Equipment 28,945 7,379,194 2,556,198 121,842 250,228 90,473 2,868,096 1,762,530 676,016 20,708 399,067 2,420,135 2,011 

Total MtCO2Eq Imported 20,647,740
Threshold Definitions - Pieces of Equipment Required to Meet Thresholds

Equipment Dehumidifiers Window ACs

Residential 

Unitary ACs

Small 

Commercial 

ACs

Packaged 

Terminal 

AC/Heat Pumps Ice Makers Mobile ACs

Refrigerated 

Appliances

Small Retail 

Food

PU Rigid 

Sandwhich 

Panels

Commercial 

Refrigeration

PU Rigid 

(Domestic 

Refrigeration

Average Charge Size (MtCO2Eq) 0.3 0.8 7.1 11.4 1.1 3.3 1.2 0.2 0.9 0.1 1.0 0.8 

Thresholds (MtCO2Eq)

1000 3,779 1,224 141 88 941 302 818 5,323 1,160 12,073 1,044 1,240 

10000 37,793 12,235 1,405 878 9,411 3,017 8,176 53,234 11,602 120,727 10,441 12,396 25000 94,483 30,588 3,513 2,196 23,527 7,541 20,440 133,085 29,004 301,818 26,103 30,990 

100000 377,931 122,351 14,052 8,783 94,109 30,166 81,762 532,340 116,015 1,207,271 104,410 123,960 

NA = Not AvailableSource for Refrigeration and AC Equipment Charge Size EPA (2008), U.S. EPA Vintaging 

Model. Version VM IO file_v4_03.25.08Source for Circuit Breakers Charge Size: EPA (2005), High Voltage Circuit Breakers Field Study,

prepared for EPA by EPRI and Eastern Resources Group.

Threshold Definitions - 2006 Equipment Export Estimates as Compared to Thresholds

Conversion: 0.083333333 bd ft/cu ft

Equipment Dehumidifiers Window ACs

Residential 

Unitary ACs

Small 

Commercial 

ACs

Packaged 

Terminal 

AC/Heat Pumps Ice Makers Mobile ACs

Refrigerated 

Appliances

Small Retail 

Food

PU Rigid 

Sandwhich 

Panels

Commercial 

Refrigeration

PU Rigid 

(Domestic 

Refrigeration

Quantity of Exports (number of units) 14,427 298,075 120,187 56,975 55,461 22,446 2,345,000 1,867,901 167,250 250,000 416,667 3,000,000 

Thresholds (MtCO2Eq)

1000 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes 

10000 No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes 25000 No Yes Yes Yes Yes Yes Yes Yes Yes No Yes Yes 

100000 No Yes Yes Yes No No Yes Yes Yes No Yes Yes 

NA = Not AvailableSource for Mobile AC: Bureau of Transportation Statistics Table 1-16 of http://www.bts.gov/publications/national_transportation_statistics/pdf/entire.pdfSource for Foams: Robert Russell (2008) Personal Communication between Robert Russell of RJRConsulting and Marian Van Pelt of ICF International, April 23, 2008.Source for All Other Equipment Types U.S. Census Bureau, 2007. U.S. International Trade Commission (USITC) Data Web.Available at <http://dataweb.usitc.gov>. Accessed November 2007.MtCO2Eq Imported in Equipment 3,817 243,623 855,321 648,660 58,933 74,408 2,868,096 350,885 144,162 20,708 399,067 2,420,13

Total MtCO2Eq Imported 8,426,513
Charge Size Analysis by Equipment Type

Weighted Average Charge Size in MT CO2 Eq.

Gas GWPs Source

Dehumidifiers Window ACs

Residential 

Unitary ACs

Small 

Commercial 

ACs

Packaged 

Terminal 

AC/Heat Pumps Ice Makers Mobile ACs

Refrigerated 

Appliances

Small Retail 

Food

PU Rigid 

Sandwhich 

Panels

Commercial 

Refrigeration

PU Rigid 

(Domestic 

Refrigeration) XPS Sheet XPS 

HFC-134a 1,300 SAR 0.23 3.32 1.22 0.19 0.53 0.05 0.03 HFC-125 2,800 SAR HFC-152a 140 SAR 0.01 HFC-245fa 10,300 AR4 0.96 0.78 N2O 310 SAR HFC-143a 3,800 SAR SF6 23,900 SAR NF3 17,000 AR4 HFC-227ea 2,900 SAR HFC-23 11,700 SAR HFC-32 650 SAR C2F6 9,200 SAR C6F14 7,400 SAR C3F8 7,000 SAR CF4 6,500 SAR C4F8O 12,100 A. Sekiya C5F12 7,500 SAR HFC-236fa 6,300 SAR HFC-365 860 SAR HFC-4310 1,300 SAR R-401A 18 SAR R-404A 3,260 SAR 0.25 R-407C 1,526 SAR 0.28 0.52 R-410A 1,725 SAR 0.04 0.54 6.60 11.39 1.06 R-490 476 VM 0.03 R-507A 3,300 SAR 0.08 c-C4F8 8,700 SAR C4F10 7,000 SAR Overall Weighted Average Charge Size 0.26 0.82 7.12 11.39 1.06 3.32 1.22 0.19 0.86 0.08 0.96 0.81 0.01 

Source for Refrigeration and AC Equipment Charge Size, and New Units: EPA (2008), U.S. EPA Vintaging Model. Version VM IO file_v4_03.25.08

Source for Circuit Breakers Charge Size: EPA (2005), High Voltage Circuit Breakers Field Study, prepared for EPA by EPRI and Eastern Resources Group.Weighted Average Charge Size in Metric Tons

Gas

Dehumidifiers Window ACs

Residential 

Unitary ACs

Small 

Commercial 

ACs

Packaged 

Terminal 

AC/Heat Pumps Ice Makers Mobile ACs

Refrigerated 

Appliances

Small Retail 

Food

PU Rigid 

Sandwhich 

Panels

Commercial 

Refrigeration

PU Rigid 

(Domestic 

Refrigeration) XPS Sheet XPS 

HFC-134a 0.00 0.00 0.00 0.00 0.00 0.00 0.00 HFC-125HFC-152a 0.00 HFC-245fa 0.00 0.00N2OHFC-143aSF6 NF3HFC-227eaHFC-23HFC-32C2F6C6F14C3F8CF4C4F8OC5F12HFC-236faHFC-365HFC-4310R-401AR-404A 0.00R-407C 0.00 0.00R-410A 0.00 0.00 0.00 0.01 0.00R-490 0.00R-507A 0.00c-C4F8C4F102010 New Units in Thousands

Gas

Dehumidifiers Window ACs

Residential 

Unitary ACs

Small 

Commercial 

ACs

Packaged 

Terminal 

AC/Heat Pumps Ice Makers Mobile ACs

Refrigerated 

Appliances

Small Retail 

Food

PU Rigid 

Sandwhich 

Panels

Commercial 

Refrigeration

PU Rigid 

(Domestic 

Refrigeration) XPS Sheet XPS 

HFC-134a 1,483 9,279 195 9,375 331 519 3,359 

HFC-125HFC-152a 

1,762

HFC-245fa 13,150 1,090N2OHFC-143aSF6NF3HFC-227ea
HFC-23

HFC-32C2F6C6F14C3F8CF4C4F8OC5F12HFC-236faHFC-365HFC-4310R-401AR-404A 61R-407C 3,638 450

R-410A 183 5,935 4,048 1,761 280

R-490 824R-507A 20c-C4F8C4F10Charge Size in Kilograms (for reference) Conversion: 1000

Gas

Dehumidifiers Window ACs

Residential 

Unitary ACs

Small 

Commercial 

ACs

Packaged 

Terminal 

AC/Heat Pumps Ice Makers Mobile ACs

Refrigerated 

Appliances

Small Retail 

Food

PU Rigid 

Sandwhich 

Panels

Commercial 

Refrigeration

PU Rigid 

(Domestic 

Refrigeration) XPS Sheet XPS 

HFC-134a 0.17 2.55 0.94 0.14 0.41 0.04 0.02 HFC-125 HFC-152a 0.09 HFC-245fa 0.09 0.08 N2O HFC-143a SF6 NF3 HFC-227ea HFC-23 HFC-32 C2F6 C6F14 C3F8 CF4 C4F8O C5F12 HFC-236fa HFC-365 HFC-4310 R-401A R-404A 0.08 R-407C 0.18 0.34 R-410A 0.02 0.31 3.82 6.60 0.62 R-490 0.06 R-507A 0.03 c-C4F8 C4F10Charge Size in Pounds (for reference) Conversion: 2.20462262

Gas

Dehumidifiers Window ACs

Residential 

Unitary ACs

Small 

Commercial 

ACs

Packaged 

Terminal 

AC/Heat Pumps Ice Makers Mobile ACs

Refrigerated 

Appliances

Small Retail 

Food

PU Rigid 

Sandwhich 

Panels

Commercial 

Refrigeration

PU Rigid 

(Domestic 

Refrigeration) XPS Sheet XPS 

HFC-134a 0.38 5.62 2.07 0.32 0.90 0.09 0.04 HFC-125 HFC-152a 0.19 HFC-245fa 0.21 0.17 N2O HFC-143a SF6 NF3 HFC-227ea HFC-23 HFC-32 C2F6 C6F14 C3F8 CF4 C4F8O C5F12 HFC-236fa HFC-365 HFC-4310 R-401A R-404A 0.17 R-407C 0.41 0.75 R-410A 0.05 0.69 8.43 14.55 1.36 R-490 0.14 R-507A 0.06 c-C4F8 C4F10
SF6 Electrical Equipment Importers Threshold Analysis

Electrical Equipment Importers

Even Distribution among Importers

Emissions (Mt CO2e) - Circuit Breakers

Emissions (Mt CO2e) - GIS

ABB 13% 3,833 232,283Areva 13% 3,833 232,283HVB AE 13% 3,833 232,283Mitsubishi 13% 3,833 232,283Siemens 13% 3,833 232,283Fuji 13% 3,833 232,283Hyundai 13% 3,833 232,283Meidensha 13% 3,833 232,283Total U.S. OEM Emissions 30,665 1,858,268Imports by Eight Manufacturers 100%Total Number of Equipment Importers 8Total SF6 Imported Inside Circuit Breakers (Mt CO2e) = 30,665Total SF6 Imported Inside GIS (Mt CO2e) = 1,858,268

SF6 Electrical Equipment Exporters Threshold Analysis

Electrical Equipment Exporters

Even Distribution among Importers Emissions (Mt CO2e)

ABB 14% 21,465Areva 14% 21,465HVB AE 14% 21,465Mitsubishi 14% 21,465Siemens 14% 21,465AZZ CGIT 6% 9,199Cooper Power Systems 6% 9,199G & W Electric 6% 9,199Pennsylvania Breaker 6% 9,199S & C Electric 6% 9,199Total U.S. OEM Emissions 100% 153,323Imports by Five Manufacturers 70%Total Number of Equipment Importers 10Total SF6 Imported Inside Equipment (Mt CO2e) = 153,323
Summary Data (see notes and assumptions below)

Reminder: The data below is based entirely on numbers provided by an industry representative. Although the representative is considered to be familiar with industry statistics, the numbers should still be used with caution. Because GIS uses such a large amount of SF6 per unit, a revision of either the number of imported units or the average nominal charge would significantly change our aggregate estimates.Total circuit breakers between 72 and 345 kV and GIS units, both imported with or without nominal charge 1000Total number of CBs imported with a nominal charge 200Total number of GIS imported with a nominal charge 67Average nameplate capacity of CBs (lbs of SF6) 70.71532Average nameplate capacity of GIS (lbs of SF6) 12856Average nominal charge as percent of total nameplate capacity of equipment 20%Notes/Assumptions for Gas-Insulated Equipment Containing SF6:2. We assume that equipment is imported by a total of eight manufacturers: ABB, Areva, HVB AE, Mitsubishi, Siemens, Fuji, Hyundai, and Meidensha (Bolin, 05/15/3. Phil Bolin provided us with the following estimates of equipment imports (Bolin, 06/24/2008): Total number of units imported (CBs and GIS combined, this number roughly confirmed by Richard York of ABB, 06/24/2008): 1000 Fraction of 1000 that is composed of CBs: 2/3 Fraction of 1000 that is composed of GIS: 1/3 Of the CBs imported, number that have a nominal charge: 30% Of the GIS imported, number that have a nominal charge: 20%4. Given the approximations provided by Phil Bolin, we estimate that 200 circuit breakers with a nominal charge are imported annually (all are between 72 and 345 5. By analyzing the SF6 field study survey, we have assumed that the average nameplate capacity of a circuit breaker between 72 and 345 kV is approximately 71 

6. Given the approximations provided by Phil Bolin, we estimate that approximately 67 GIS with a nominal charge are imported annually.1. We have assumed that most SF6 imported into the United States inside equipment is either in circuit breakers between 72 and 345 kV or gas-insulated substatiokV is too large to ship assembled with a nominal charge. Equipment below 72 kV sometimes contains SF6, but we assume that most of this equipment is made by s(e.g. S&C and G&W) with no major manufacturing capacity oversees. However, the Yaskawa Electric Company is a Japanese company that markets medium voltadoes not have any U.S. manufacturing capacity, which makes them a potential importer. Because it is unclear whether they are actually importing gas-insulated equwould be importing, and how much gas the equipment would contain (would be relatively small compared to high-voltage equipment), we have not included Yaskawnote that there might be imports of medium voltage equipment containing a relatively small amount of SF6 that we are not covering. (Bolin, 06/24/2008) and (Meyer, 
7. By analyzing the GIS units used by a large SF6 Emission Reduction Partner, we assume that the average nameplate 

capacity of an imported GIS unit is 12,856 lbs. of SF6 (Research performed by Paul Stewart of ICF).8. We assume that the average nominal charge of gas-insulated equipment is 20% of the equipment's nameplate capacity (Meyer, 04/29/2008 and Bolin, 05/15/200

9. Only GIS is exported
PU Rigid 

Sandwhich 

Panels

Commercial 

Refrigeration

PU Rigid 

(Domestic 

Refrigeration) XPS Sheet XPS Boardstock Co

lbs/cu ft 0.23 0.205 0.21 0.19 0.21 kg/cu ft 0.1043263 0.0929865 0.0952544 0.0861826 0.0952544 mt/cu ft 0.0001043 0.0000930 0.0000953 0.0000862 0.0000953

email from Bob Russell to Marian Van Pelt 6/13/08Felxible PU Foam: Slabstock Foam, Moulded Foam: HC, but some HFC-134a: 0.19-0.23 lbs./cu.ft. >> PU and PIR Rigid: Boardstock>>> PU Rigid: Domestic Refrigerator and Freezer Insulation: HFC-245fa / HFC-134a 0.20-0.22 lbs./cu.ft>>> PU Rigid: Spray Foam: HFC-245fa, 0.20 lbs / cu.ft.>>> PU Rigid: Other: Slabstock Foam>>> XPS: Sheet Foam: HC, but some HFC-152a, 0.18 - 0.20 lbs./cu.ft.>>> XPS: Boardstock Foam: HFC-134a, 0.20-0.22 lbs./cu.ft>>> Felxible PU Foam: Integral Skin Foam>>> Polyolefin Foam>>> Phenolic Foam>>> PU Rigid: One Component Foam>>> Commercial Refrigeration Foam: HFC-245fa, some HFC-134a 0.19-0.22 > lbs./cu.ft>>> PU Rigid: Sandwich Panels: Continuous and Discontinuous: some HFC-134a > use, 0.22-0.24 lbs./cu.ft