3.4 : Commercial Environmental Emissions




3.4.2 2010 Commercial 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
Lighting 211.9 211.9 20.4%
Space Heating 87.4 10.2 6.7 0.3 17.3 5.6 50.5 160.7 15.5%
Space Cooling 2.3 149.1 151.3 14.6%
Ventilation 95.2 95.2 9.2%
Refrigeration 69.1 69.1 6.7%
Electronics 46.4 46.4 4.5%
Water Heating 23.2 2.0 2.0 16.2 41.4 4.0%
Computers 37.7 37.7 3.6%
Cooking 9.5 4.1 13.6 1.3%
Other (4) 15.8 0.9 9.0 3.8 13.7 122.0 151.5 14.6%
Adjust to SEDS (5) 36.2 18.4       18.4   2.8 57.3 5.5%
Total 174.4 31.5 6.7 9.0 4.1 51.3 5.6 805.0 1,036.3 100%
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. Commercial sector total varies by 0.0% from EIA, AEO 2012. 2) Includes kerosene space heating (0.3 MMT) and motor gasoline other uses (3.8 MMT). 3) Excludes electric imports by utilities. 4) Includes commercial service station equipment, ATMs, telecommunications equipment, medical equipment, pumps, emergency electric generators, and manufacturing performed in commercial buildings. 5) Emissions related to a discrepancy between data sources. 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, Energy Consumption Characteristics of Commercial Building HVAC Systems, Volume II: Thermal Distribution, Auxiliary Equipment, and Ventilation, Oct. 1999, p. 1-2