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22 Utilities

 22 Utilities

The Sector as a Whole

The Utilities sector comprises establishments engaged in the provision of the following utility services: electric power, natural gas, steam supply, water supply, and sewage removal. Within this sector, the specific activities associated with the utility services provided vary by utility: electric power includes generation, transmission, and distribution; natural gas includes distribution; steam supply includes provision and/or distribution; water supply includes treatment and distribution; and sewage removal includes collection, treatment, and disposal of waste through sewer systems and sewage treatment facilities.

Excluded from this sector are establishments primarily engaged in waste management services classified in Subsector 562, Waste Management and Remediation Services. These establishments also collect, treat, and dispose of waste materials; however, they do not use sewer systems or sewage treatment facilities.

221 Utilities

 221 Utilities

Industries in the Utilities subsector provide electric power, natural gas, steam supply, water supply, and sewage removal through a permanent infrastructure of lines, mains, and pipes. Establishments are grouped together based on the utility service provided and the particular system or facilities required to perform the service.

 2211 Electric Power Generation, Transmission and Distribution

This industry group comprises establishments primarily engaged in generating, transmitting, and/or distributing electric power. Establishments in this industry group may perform one or more of the following activities: (1) operate generation facilities that produce electric energy; (2) operate transmission systems that convey the electricity from the generation facility to the distribution system; and (3) operate distribution systems that convey electric power received from the generation facility or the transmission system to the final consumer.

 22111 Electric Power Generation

This industry comprises establishments primarily engaged in operating electric power generation facilities. These facilities convert other forms of energy, such as water power (i.e., hydroelectric), fossil fuels, nuclear power, and solar power, into electrical energy. The establishments in this industry produce electric energy and provide electricity to transmission systems or to electric power distribution systems.

Cross-References. Establishments primarily engaged in operating trash incinerators that also generate electricity are classified in Industry 56221, Waste Treatment and Disposal.

 221111 Hydroelectric Power Generation

This U.S. industry comprises establishments primarily engaged in operating hydroelectric power generation facilities. These facilities use water power to drive a turbine and produce electric energy. The electric energy produced in these establishment is provided to electric power transmission systems or to electric power distribution systems.
No change 1997 to 2002 2002 NAICS to 1987 SIC 1997Economic Census Bridge Between 1997 NAICS and SIC
2002
NAICS
1997
NAICS
1987
SIC
Corresponding Index Entries
221111221111 Electric power generation, hydroelectric
221111221111 Hydroelectric power generation
221111221111 Power generation, hydroelectric


 221112 Fossil Fuel Electric Power Generation

This U.S. industry comprises establishments primarily engaged in operating fossil fuel powered electric power generation facilities. These facilities use fossil fuels, such as coal, oil, or gas, in internal combustion or combustion turbine conventional steam process to produce electric energy. The electric energy produced in these establishments are provided to electric power transmission systems or to electric power distribution systems.
No change 1997 to 2002 2002 NAICS to 1987 SIC 1997Economic Census Bridge Between 1997 NAICS and SIC
2002
NAICS
1997
NAICS
1987
SIC
Corresponding Index Entries
221112221112 Electric power generation, fossil fuel (e.g., coal, oil, gas)
221112221112 Power generation, fossil fuel (e.g., coal, gas, oil), electric


 221113 Nuclear Electric Power Generation

This U.S. industry comprises establishments primarily engaged in operating nuclear electric power generation facilities. These facilities use nuclear power to produce electric energy. The electric energy produced in these establishments are provided to electric power transmission systems or to electric power distribution systems.
No change 1997 to 2002 2002 NAICS to 1987 SIC 1997Economic Census Bridge Between 1997 NAICS and SIC
2002
NAICS
1997
NAICS
1987
SIC
Corresponding Index Entries
221113221113 Electric power generation, nuclear
221113221113 Power generation, nuclear electric


 221119 Other Electric Power Generation

This U.S. industry comprises establishments primarily engaged in operating electric power generation facilities (except hydroelectric, fossil fuel, nuclear). These facilities convert other forms of energy, such as solar, wind, or tidal power, into electrical energy. The electric energy produced in these establishment is provided to electric power transmission systems or to electric power distribution systems.

Cross-References. Establishments primarily engaged in--

No change 1997 to 2002 2002 NAICS to 1987 SIC 1997Economic Census Bridge Between 1997 NAICS and SIC
2002
NAICS
1997
NAICS
1987
SIC
Corresponding Index Entries
221119221119 Electric power generation, (except fossil fuel, hydroelectric, nuclear)
221119221119 Electric power generation, solar
221119221119 Electric power generation, tidal
221119221119 Electric power generation, wind
221119221119 Power generation, electric (except fossil fuel, hydroelectric, nonhazardous solid
221119221119 Power generation, solar electric
221119221119 Power generation, tidal electric
221119221119 Power generation, wind electric


 22112 Electric Power Transmission, Control, and Distribution

This industry comprises establishments primarily engaged in operating electric power transmission systems, controlling (i.e., regulating voltages) the transmission of electricity, and/or distributing electricity. The transmission system includes lines and transformer stations. These establishments arrange, facilitate, or coordinate the transmission of electricity from the generating source to the distribution centers, other electric utilities, or final consumers. The distribution system consists of lines, poles, meters, and wiring that deliver the electricity to final consumers.

Cross-References. Establishments primarily engaged in generating electric energy are classified in Industry 22111, Electric Power Generation.

 221121 Electric Bulk Power Transmission and Control

This U.S. industry comprises establishments primarily engaged in operating electric power transmission systems and/or controlling (i.e., regulatory voltage) the transmission of electricity from the generating source to distribution centers or other electric utilities. The transmission system includes lines and transformer stations.

Cross-References. Establishments primarily engaged in--

No change 1997 to 2002 2002 NAICS to 1987 SIC 1997Economic Census Bridge Between 1997 NAICS and SIC
2002
NAICS
1997
NAICS
1987
SIC
Corresponding Index Entries
221121221121 Electric power control
221121221121 Electric power transmission systems
221121221121 Transmission of electric power


 221122 Electric Power Distribution

This U.S. industry comprises electric power establishments primarily engaged in either (1) operating electric power distribution systems (i.e., consisting of lines, poles, meters, and wiring) or (2) operating as electric power brokers or agents that arrange the sale of electricity via power distribution systems operated by others.

Cross-References. Establishments primarily engaged in--

No change 1997 to 2002 2002 NAICS to 1987 SIC 1997Economic Census Bridge Between 1997 NAICS and SIC
2002
NAICS
1997
NAICS
1987
SIC
Corresponding Index Entries
221122221122 Distribution of electric power
221122221122 Electric power brokers
221122221122 Electric power distribution systems


 2212 Natural Gas Distribution

 22121 Natural Gas Distribution

See industry description for 221210 below.

 221210 Natural Gas Distribution

This industry comprises: (1) establishments primarily engaged in operating gas distribution systems (e.g., mains, meters); (2) establishments known as gas marketers that buy gas from the well and sell it to a distribution system; (3) establishments known as gas brokers or agents that arrange the sale of gas over gas distribution systems operated by others; and (4) establishments primarily engaged in transmitting and distributing gas to final consumers.

Cross-References. Establishments primarily engaged in--

No change 1997 to 2002 2002 NAICS to 1987 SIC 1997Economic Census Bridge Between 1997 NAICS and SIC
2002
NAICS
1997
NAICS
1987
SIC
Corresponding Index Entries
2212102212104925Blue gas, carbureted, production and distribution
2212102212104925Coke oven gas, production and distribution
2212102212104925Distribution of manufactured gas
221210221210 Distribution of natural gas
2212102212104925Gas, manufactured, production and distribution
2212102212104925Gas, mixed natural and manufactured, production and distribution
221210221210 Gas, natural, distribution
2212102212104925Liquefied petroleum gas (LPG) distribution through mains
2212102212104925Manufactured gas production and distribution
2212102212104924Natural gas brokers
221210221210 Natural gas distribution systems
2212102212104924Natural gas marketers


 2213 Water, Sewage and Other Systems

 22131 Water Supply and Irrigation Systems

See industry description for 221310 below.

 221310 Water Supply and Irrigation Systems

This industry comprises establishments primarily engaged in operating water treatment plants and/or operating water supply systems. The water supply system may include pumping stations, aqueducts, and/or distribution mains. The water may be used for drinking, irrigation, or other uses.
No change 1997 to 2002 2002 NAICS to 1987 SIC 1997Economic Census Bridge Between 1997 NAICS and SIC
2002
NAICS
1997
NAICS
1987
SIC
Corresponding Index Entries
2213102213104971Canal, irrigation
2213102213104941Filtration plant, water
2213102213104971Impounding reservoirs, irrigation
2213102213104971Irrigation system operation
2213102213104941Water distribution (except irrigation)
2213102213104971Water distribution for irrigation
2213102213104941Water filtration plant operation
2213102213104941Water supply systems
2213102213104941Water treatment and distribution
2213102213104941Water treatment plants


 22132 Sewage Treatment Facilities

See industry description for 221320 below.

 221320 Sewage Treatment Facilities

This industry comprises establishments primarily engaged in operating sewer systems or sewage treatment facilities that collect, treat, and dispose of waste.

Cross-References. Establishments primarily engaged in--

No change 1997 to 2002 2002 NAICS to 1987 SIC 1997Economic Census Bridge Between 1997 NAICS and SIC
2002
NAICS
1997
NAICS
1987
SIC
Corresponding Index Entries
2213202213204952Collection, treatment, and disposal of waste through a sewer system
2213202213204952Sewage disposal plants
2213202213204952Sewage treatment plants or facilities
2213202213204952Sewer systems
2213202213204952Waste collection, treatment, and disposal through a sewer system


 22133 Steam and Air-Conditioning Supply

See industry description for 221330 below.

 221330 Steam and Air-Conditioning Supply

This industry comprises establishments primarily engaged in providing steam, heated air, or cooled air. The steam distribution may be through mains.
No change 1997 to 2002 2002 NAICS to 1987 SIC 1997Economic Census Bridge Between 1997 NAICS and SIC
2002
NAICS
1997
NAICS
1987
SIC
Corresponding Index Entries
2213302213304961Air-conditioning supply
2213302213304961Cooled air distribution
2213302213304961Distribution of cooled air
2213302213304961Distribution of heated air
2213302213304961Distribution of steam heat
2213302213304961Geothermal steam production
2213302213304961Heat, steam, distribution
2213302213304961Heated air distribution
2213302213304961Heating steam (suppliers of heat) providers
2213302213304961Steam heat distribution
2213302213304961Steam heating systems (i.e., suppliers of heat)
2213302213304961Steam production and distribution
2213302213304961Steam supply systems, including geothermal