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221121 - Electric Bulk Power Transmission and Control

Top Businesses by Revenue for 221121:

National Grid USAWalthamMA
Itc Holdings CorpNoviMI
Potomac Edison CompanyWilliamsportMD
Central Maine Power CompanyAugustaME
American Transmission Co LLCWaukeshaWI
Upper Missouri G & T Elc CoopSidneyMT
Southern Maryland Elc Coop IncHughesvilleMD
Itc Midwest LLCCedar RapidsIA
Bhe Holdings IncBangorME
Vermont Electric Power Co IncRutlandVT

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., regulating voltages) 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--

  • Generating electric energy--are classified in Industry 22111, Electric Power Generation; and
  • Distributing electricity to final consumers--are classified in U.S. Industry 221122, Electric Power Distribution.
2007
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2012
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2017
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Index Entries for 221121
221121221121221121Electric power control
221121221121221121Electric power transmission systems
221121221121221121Transmission of electric power