Navajo Transmission System and Ratings Overview
Explore the Navajo Transmission System and Ratings, including WECC Path Ratings, NERC Transfer Capability, and ownership structure. Learn about the current capabilities and elements of the transmission system serving the Navajo region.
Download Presentation
Please find below an Image/Link to download the presentation.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author. If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.
You are allowed to download the files provided on this website for personal or commercial use, subject to the condition that they are used lawfully. All files are the property of their respective owners.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.
E N D
Presentation Transcript
Navajo Transmission System Four Corners Wind Resource Center April 25, 2017
Transmission Systems and Ratings Western Electricity Coordinating Council (WECC) Path Rating Process: Peer Reviewed process for single lines or paths Sets long term capability rating cannot be diminished by future lines Subject to re-rating for changed conditions Current ratings for Navajo Transmission Elements: Path 49: 10,100 MW (2,000 MW allocated to Navajo-Crystal line) Path 51: 2800 MW
Transmission Systems and Ratings (Con t) No. American Electric Reliability Council (NERC): Total Transfer Capability (TTC): The amount of power that can reliably be transmitted across a line or path (equal to WECC Path Rating if process performed for that element) Available Transfer Capability (ATC): TTC less committed uses. TTC and ATC are calculated for discrete time periods yearly, monthly, weekly, daily, hourly
Glen Canyon Navajo Four Corners Crystal Marketplace Mead McCullough Moenkopi Eldorado Path 51 Cedar Mtn. Arizona EHV Transmission System Cholla Sugarloaf Yavapai Dugas Coronado Springerville Morgan 500 kV 345 kV 230 kV Navajo Western Navajo Southern PPK Westwing Colorado River Kyrene Rudd Silver King Palo Verde Jojoba Hassayampa Gila River Duke North Gila Greenlee Pinal West Pinal Central Saguaro EOR or Path 49 Vail South
Current Ownership Structure Navajo Southern System Navajo Dugas Morgan Westwing Line Moenkopi Cedar Mtn. - Yavapai Westwing Line Navajo Switchyard Navajo Moenkopi Line APS LADWP NVE SRP TEP USBR 14.0% 21.2% 11.3% 21.7% 7.5% 24.3% APS SRP TEP USBR 24.7% 38.3% 13.3% 23.7% Navajo Western System Navajo Crystal McCullough Line LADWP 48.9% NVE 26.1% USBR 25.0%
Thank You! Charlie Reinhold, reinhold@ctcweb.net 208-253-6916
