WECC Intertie Paths

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Map of major Western North American power transmission paths
A line on Path 65, part of the Pacific DC Intertie.

The Western Electricity Coordinating Council (WECC) coordinates a number of high voltage power links in western North America.[1][2][3] 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 61 between Lugo and Victorville, California, United States. These are currently numbered from 1 to 81, with a few numbers intentionally left out.

Table of paths[edit]

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 # Name Path rating transfer limit (MW) Normal power flow

direction

Max voltage (kV)
E to W (N to S) W to E (S to N)
Path 1 Alberta to BC 1000 1200 E to W 500
Path 2 Alberta to Saskatchewan
Path 3 Northwest to British Columbia 3150 2000 S to N 500
Path 4 West of Cascades - North 10200 E to W
Path 5 West of Cascades - South 7000 E to W
Path 6 West of Hatwai 4250 E to W
Path 8 Montana to Northwest 2200 1350 E to W 500
Path 9 West of Broadview 2753 Not Defined E to W 500
Path 10 West of Colstrip 2598 Not Defined E to W 500
Path 11 West of Crossover 2598 Not Defined E to W 500
Path 14 Idaho to Northwest 2400 1200 E to W 500
Path 15 Midway - Los Banos 2000-3265[4] 4800-5400[4] N to S 500
Path 16 Idaho - Sierra
Path 17 Borah West 2557 Not Defined E to W 345
Path 18 Montana to Idaho 337 256 N to S 230
Path 19 Bridger West 2200 Not Defined E to W 345
Path 20 Path C 1000 1000 S to N 345
Path 22 Southwest of Four Corners 2325 Not Defined E to W 500
Path 23 Four Corners Transformer N/A N/A N/A 500
Path 24 PG&E - Sierra
Path 25 PacificCorp/PG&E 115 kV
Path 26 Northern-Southern California 4000 3000
Path 27 IPP DC Line 2400 1400 N to S 500
Path 28 Intermountain - Mona 345 kV
Path 29 Intermountain - Gonder 230 KV 200 Not Defined E to W 230
Path 30 TOT 1A 650 Not Defined E to W 345
Path 31 TOT 2A 690 Not Defined N to S 345
Path 32 Pavant Intr-mtn - Gonder 230 KV 440 235 E to W 230
Path 33 Bonanza West 785 Not Defined E to W 345
Path 34 TOT 2B see Paths 78 and 79 780 850 N to S
Path 35 TOT 2C 600 600 NE to SW 345
Path 36 TOT 3 1605 Not Defined N to S 345
Path 37 TOT 4A
Path 38 TOT 4B
Path 39 TOT 5
Path 40 TOT 7
Path 41 Sylmar to SCE
Path 42 IID - SCE 600 Not Defined 230
Path 43 North of San Onofre
Path 44 South of San Onofre
Path 45 SDG&E - CFE 408 800 S to N
Path 46 West of Colorado River (WOR) 10623 Not Defined E to W 500
Path 47 Southern New Mexico (NM1) 1048 Not Defined N to S 345
Path 48 Northern New Mexico (NM2) 1970 Not Defined NW to SE
Path 49 East of Colorado River (EOR) 9300 Not Defined E to W 500
Path 50 Cholla Pinnacle Peak 1200 Not Defined NE to SW 345
Path 51 Southern Navajo 2800 Not Defined N to S 500
Path 52 Silver Peak - Control 55 KV 17 17 55
Path 54 Coronado West
Path 55 Brownlee East
Path 58 Eldorado - Mead 230 kV
Path 59 WALC Blythe, SCE Blythe
Path 60 Inyo - Control 115 KV Tie 56 56 115
Path 61 Lugo - Victorville 500 KV Line 2400 900 N to S 500
Path 62 Eldorado - McCullough 500 kV
Path 64 Marketplace - Adelanto line 500 kV 500
Path 65 Pacific DC Intertie (PDCI) 3100 3100 N to S 500
Path 66 California Oregon Intertie 4800 3675 N to S 500
Path 71 South of Allston
Path 73 North of John Day Not Defined
Path 75 Hemingway - Summer Lake 1500 400 E to W 500
Path 76 Alturas Project
Path 77 Crystal - Allen
Path 78 TOT 2B1 530 600 345
Path 79 TOT 2B2 265 300
Path 80 Montana Southeast 600 600 230
Path 81 Centennial

References[edit]

  1. ^ "WECC PATH MAP" (PDF). WECC. Retrieved 6 May 2012.
  2. ^ "WECC Path Reports" (PDF). WECC. Retrieved 6 May 2012.
  3. ^ https://www.wecc.biz/Reliability/TAS_PathReports_Combined_FINAL.pdf
  4. ^ a b http://www.caiso.com/Documents/FinalStudyScopeforTransfersbetweenPacificNorthwestandCalifornia.pdf#page=13