The Western Electricity Coordinating Council (WECC) coordinates a number of high voltage power links in western North America. These links, known as WECC Intertie Paths, are not necessarily single transmission line, rather they are interties between various areas. These areas can be quite distant, such as Path 65 between The Dalles, Oregon and Los Angeles, California or short such as Path 62 between Southern California Edison's Eldorado and LADWP's McCullough substations. These are currently numbered from 1 to 81, with a few numbers intentionally omitted.
Table of paths Since the interties may consist of multiple power-lines, the maximum voltage used is shown in the table below. Some of the links such as Path 65, the Pacific DC Intertie, do consist of a single transmission line, so the maximum voltage is the voltage used.
Path #NamePath rating transfer limit (MW)Normal power flow directionMax voltage (kV) E to W (N to S)W to E (S to N) Path 1Alberta to BC10001200W to E500 Path 2Alberta to Saskatchewan150150E to W DC/DC Path 3Northwest to British Columbia31503000S to N500 Path 4West of Cascades - North10700E to W500 Path 5West of Cascades - South7200E to W500 Path 6West of Hatwai4277E to W500 Path 8Montana to Northwest22001350E to W500 Path 9West of Broadview2753Not DefinedE to W500 Path 10West of Colstrip2598Not DefinedE to W500 Path 11West of Crossover2598Not DefinedE to W500 Path 14Idaho to Northwest24001200E to W500 Path 15Midway - Los Banos2000-32654800-5400N to S500 Path 16Idaho - Sierra500360345 Path 17Borah West25571600Not Defined345 Path 18Montana to Idaho383256N to S230 Path 19Bridger West24001250E to W345 Path 20Path C16001250S to N345 Path 22Southwest of Four Corners2325Not DefinedE to W500 Path 23Four Corners TransformerN/AN/AN/A500 Path 24PG&E - Sierra160150115 Path 25PacificCorp/PG&E 115 kV150115 Path 26Northern-Southern California40003000500 Path 27IPP DC Line24001400N to S500 Path 28Intermountain - Mona 345 kV1200345 Path 29Intermountain - Gonder 230 KV200241Not DefinedE to W230 Path 30TOT 1A650Not DefinedE to W345 Path 31TOT 2A690Not DefinedN to S345 Path 32Pavant Intr-mtn - Gonder 230 KV500235E to W230 Path 33Bonanza West785Not DefinedE to W345 Path 34TOT 2B see Paths 78 and 79780850N to S Path 35TOT 2C600580NE to SW345 Path 36TOT 31680Not DefinedN to S345 Path 37See Path 85 Path 38TOT 4B880230 Path 39TOT 5345 Path 40TOT 7890230 Path 41Sylmar to SCE16001600230 Path 42IID - SCE750Not Defined230 Path 43North of San Onofre Path 44South of San Onofre Path 45SDG&E - CFE408800S to N Path 46West of Colorado River (WOR)1120011200Not Defined500 Path 47Southern New Mexico (NM1)1048Not DefinedN to S345 Path 48Northern New Mexico (NM2)21502150NW to SE345 Path 49East of Colorado River (EOR)10100Not DefinedE to W500 Path 50Cholla Pinnacle Peak1200Not DefinedNE to SW345 Path 51Southern Navajo2800Not DefinedN to S500 Path 52Silver Peak - Control 55 KV171755 Path 54Coronado West1494500 Path 55Brownlee East1915230 Path 58Eldorado - Mead 230 kV11401140230 Path 59WALC Blythe, SCE Blythe218Not Rated161 Path 60Inyo - Control 115 KV Tie5656115 Path 61Lugo - Victorville 500 KV Line2400900N to S500 Path 62Eldorado - McCullough 500 kV25982598500 Path 64Marketplace - Adelanto line 500 kV500 Path 65Pacific DC Intertie (PDCI)32203100N to S500 Path 66California Oregon Intertie48003675N to S500 Path 71South of Allston1170500 Path 73North of John DayNot Defined Path 75Hemingway - Summer Lake1500400E to W500 Path 76Alturas Project300345 Path 77Crystal - Allen300500 Path 78TOT 2B1700345 Path 79TOT 2B2265300230 Path 80Montana Southeast600600230 Path 81Centennial3790500 Path 82TOT B East2465Not Rated500 Path 83Montana/Alberta Tie Line300230 Path 84Harry Allen-Eldorado 500 kv1390500 Path 85Aeolus West1816500 Path 86West of John Day4760Not Rated500 Path 87West of McNary4925Not Rated500 Path 88West of Slatt4760Not Rated500 Path 89Southern Nevada Transmission Interface Plus62574681500
References
Links 2024 Path Rating Catalog-Public Version, Western Electricity Coordinating Council