NAICS Code Description

221121 - Electric Bulk Power Transmission and Control

Top Businesses by Annual Sales for 221121 – Click for Complete Profiles:

Southern Maryland Elc Coop IncBailey County Elc Coop Assn
Matanuska Electric AssociationKodiak Electric Assn Inc
Northern California Power AgcyCentral Electric Power Assn
New York Transco LLCVigilante Electric Coop Inc
Pattern Energy Group One LPGuthrie Cnty Rur Elc Coop Assn

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.
Index Entries for 221121
221121221121221121Electric power control
221121221121221121Electric power transmission systems
221121221121221121Transmission of electric power