1.4 : Environmental Data




1.4.2 2010 Buildings Energy End-Use Carbon Dioxide Emissions Splits, by Fuel Type (Million Metric Tons) (1)
Natural Petroleum
Gas Distil. Resid. LPG Oth(2) Total Coal Electricity (3) Total Percent
Space Heating (4) 272.9 49.0 6.7 18.7 2.6 77.0 6.2 128.2 484.3 21.3%
Space Cooling 2.3 340.5 342.8 15.1%
Lighting 334.1 334.1 14.7%
Water Heating 91.9 9.2 4.6 13.7 98.5 204.1 9.0%
Refrigeration (5) 149.8 149.8 6.6%
Electronics (6) 143.0 143.0 6.3%
Ventilation (7) 95.2 95.2 4.2%
Computers 68.2 68.2 3.0%
Wet Cleaning (8) 2.9 57.8 60.8 2.7%
Cooking 20.9 1.9 1.9 36.5 59.4 2.6%
Other (9) 15.8 0.9 19.1 3.8 23.9 158.4 198.1 8.7%
Adjust to SEDS (10) 36.2 18.4       18.4   75.4 129.9 5.7%
Total 442.9 77.5 6.7 44.3 6.4 134.8 6.2 1685.7 2269.6 100%
Note(s): 1) Emissions assume complete combustion from energy consumption, excluding gas flaring, coal mining, and cement production. Emissions exclude wood since it is assumed that the carbon released from combustion is reabsorbed in a future carbon cycle. Carbon emissions calculated from EIA, Assumptions to the AEO 2011 and differs from EIA, AEO 2012 Early Release, Table A18. Buildings sector total varies by 0.1% from EIA, AEO 2012 Early Release. 2) Includes kerosene space heating (2.6 MMT) and motor gasoline other uses (3.8 MMT). 3) Excludes electric imports by utilities. 4) Includes residential furnace fans (23.9 MMT). 5) Includes refrigerators (135.2 MMT) and freezers (14.6 MMT). 6) Includes color television (58.2 MMT) and other office equipment. 7) Commercial only; residential fan and pump energy use included proportionately in space heating and cooling. 8) Includes clothes washers (5.8 MMT), natural gas clothes dryers (2.9 MMT), electric clothes dryers (34.3 MMT), and dishwashers (17.8 MMT). Does not include water heating energy. 9) Includes residential small electric devices, heating elements, motors, swimming pool heaters, hot tub heaters, outdoor grills, and natural gas outdoor lighting. Includes commercial service station equipment, ATMs, telecommunications equipment, medical equipment, pumps, emergency electric generators, and manufacturing performed in commercial buildings. 10) Emissions related to a discrepancy between data sources and that results from energy attributable to the buildings sector, but not directly to specific end-uses.









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Sources:


EIA, National Energy Modeling System (NEMS) for AEO 2012 Early Release, Jan. 2012


BTS/A.D. Little, Electricity Consumption by Small End-Uses in Residential Buildings, Aug. 1998, Appendix A for residential electric end-uses

BTS/A.D. Little, Energy Consumption Characteristics of Commercial Building HVAC Systems, Volume II: Thermal Distribution, Auxiliary Equipment, and Ventilation, Oct. 1999, p. 1-2