221121 - Electric Bulk Power Transmission and Control
Top Businesses by Annual Sales for 221121 – Click for Complete Profiles:
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|
|221121||221121||221121||Electric power control|
|221121||221121||221121||Electric power transmission systems|
|221121||221121||221121||Transmission of electric power|