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Path Rating Catalog 2013 - Western Electricity Coordinating Council

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Revised January <strong>2013</strong><br />

System<br />

Conditions:<br />

Study Criteria:<br />

Remedial<br />

Actions<br />

Required:<br />

Formal<br />

Operating<br />

Procedure:<br />

Allocation:<br />

Interaction<br />

w/Other<br />

Transfer <strong>Path</strong>s:<br />

Contact Person:<br />

2009 Heavy Autumn conditions. Pre- and post-project benchmark cases were<br />

developed in which the EOR and Southern California Import Transmission<br />

(SCIT) Nomogram paths were stressed separately until a thermal, stability or<br />

post-transient limit was reached. In December 2011, the Hoodoo Wash<br />

switching station will be energized.<br />

NERC/WECC Reliability Criteria for Transmission System Planning.<br />

None<br />

None<br />

The transfer capability is divided among the three sub systems:<br />

• Northern System<br />

‣ Southern California Edison<br />

1555 MW<br />

‣ Department of Water and Power<br />

999 MW*<br />

‣ NV Energy<br />

533 MW*<br />

‣ WALC<br />

512 MW*<br />

‣ Liberty-Peacock<br />

450 MW<br />

• Southern System<br />

‣ Southern California Edison<br />

1803 MW<br />

‣ San Diego Gas & Electric<br />

1162 MW<br />

‣ Imperial Irrigation District<br />

195 MW<br />

‣ Arizona Public Service<br />

168 MW<br />

• Mead-Phoenix Project<br />

‣ WALC<br />

609 MW<br />

‣ Arizona Public Service<br />

349 MW<br />

‣ Salt River Project<br />

349 MW<br />

‣ S. California Cities<br />

284 MW<br />

‣ M-S-R<br />

222 MW<br />

‣ Department of Water and Power<br />

110 MW<br />

9300 MW<br />

* The scheduling capability for the Navajo-Crystal line is limited to 2000<br />

MW.<br />

The simultaneous transfer limit into southern California is governed by the<br />

Southern California Import Transmission (SCIT) Nomogram, and is partly a<br />

function of the EOR flow. The SCIT Nomogram varies seasonally and is<br />

limited by post-transient and transient conditions.<br />

Barrie Kokanos, PhD, PE<br />

Arizona Public Service Company<br />

P. O. Box 53933, Station 3259<br />

Phoenix AZ 85072-3933<br />

(602) 250-1370<br />

(602) 371-6022 - fax<br />

barrie.kokanos@aps.com<br />

PART VI Item 1-138

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