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.

TANC is a California joint powers authority established by a group of publicly-owned utilities in 1984. Its Membership currently consists of 15 publicly-owned utilities in the cities of Alameda, Biggs, Gridley, Healdsburg, Lodi, Lompoc, Palo Alto, Redding, Roseville, Santa Clara (Silicon Valley Power), and Ukiah, as well as the Sacramento Municipal Utility District, the Modesto Irrigation District and the Turlock Irrigation District. The Plumas-Sierra Rural Electric Cooperative is an associate member. TANC is governed by a Commission consisting of a representative from each TANC Member.