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info@tanc.usm p. 916.852.1673 f. 916.852.1073 P.O. Box 15129, Sacramento, California 95851-0129



Welcome to the Transmission Agency of Northern California (TANC) website, your resource for information on electric transmission and its critical role in keeping the lights on in Northern California. In addition to providing information about TANC, this site is designed to be a portal to information regarding California's transmission system and needs, goals for increasing the use of renewable energy sources and reducing greenhouse gas emissions, and how TANC and others are working together to meet California's energy infrastructure needs. New information will be added regularly; thank you for visiting!

Request for Offers For Communication Sites Located in Northern California

To assist in the operation of the COTP, TANC currently uses a number of microwave communication sites located throughout northern and central California. The existing COTP communications system, including the communication sites, was originally licensed to TANC by the Federal Communications Commission in 1992, and placed into service along with the commercial operation of the COTP in March 1993. The original system was constructed on two independent paths to provide the required reliability and redundancy needed.

TANC recently completed the COTP Communications Conversion Project (Project), and has replaced portions of its communications system with fiber optic technology. TANC now has the following surplus communication sites:

  • Corning
  • Logan Creek
  • Sugarloaf
  • Rumsey

Learn more!



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