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WECC Planning Coordinating Committee Brian K. Keel Chair – Reliability Subcommittee June, 2010 WECC Reliability Subcommittee Report.

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Presentation on theme: "WECC Planning Coordinating Committee Brian K. Keel Chair – Reliability Subcommittee June, 2010 WECC Reliability Subcommittee Report."— Presentation transcript:

1 WECC Planning Coordinating Committee Brian K. Keel Chair – Reliability Subcommittee June, 2010 WECC Reliability Subcommittee Report

2 Reliability Subcommittee Report WECC WRS1.1 Common Corridor Criterion – WECC-0071 RPIC Document Classification – RS Charter RPEWG – 4 th TRD

3 WECC WRS1.1 Common Corridor Criterion TPL-( )-WECC-1-CR – WRS1. In addition to NERC Table 1, comply with WECC Table W-1 of Allowable Effects on Other Systems, Table W-1 does not apply internally to a TO. – Table W-1 => Voltage, Frequency, Post-Transient & Outage Freq. – WRS1.1. The NERC Category C.5 (on a common tower) initiating event of a non – three phase fault with normal clearing shall also apply to the common mode contingency of two Adjacent Transmission Circuits on separate towers unless the event frequency is determined to be less than one in thirty years.

4 WECC WRS1.1 Common Corridor Criterion Reasons for discussion and possible changes: – No consideration of terminus or length – More stringent criterion than any other Region – Could allow for increased use of existing lines developed to a corridor

5 WECC WRS1.1 Common Corridor Criterion 1 st Meeting – April 14 th Sub Team started – Research origins of the criterion 2 nd Meeting May 26 at Columbia Grid Offices – Presentations of different views BLM Transmission Developer IOU

6 WECC WRS1.1 Common Corridor Criterion 3 rd Meeting July 13, 2010 San Francisco, CA, PG&E Offices – Sub – Team Options – Changes? – Stay the same? – Alter Criteria? » How, What Needed in Support?? WECC Criteria and NERC Requirements

7 RPIC Document Classification All documents completed & submitted Two Main Documents RPEWG Charter The purpose of the RS is to develop and recommend criteria and guidelines to the PCC for such elements of power system design and performance that affect the reliability of the WECC interconnected bulk power system, and perform such other duties as directed by the PCC.

8 RPIC Document Classification Reliability Subcommittee Charter – Develop WECC Guidelines or reliability criteria for interconnection of variable generation. – Examine NERC Stds and FERC Orders, compare with WECC reliability needs, formulate comments for others to use in their comments

9 RPIC Document Classification Proposed Change to: Examine NERC Standards and FERC Orders and compare with the reliability needs of the Western Interconnection. Formulate comments within the RS on items out for comment from NERC or FERC from a WECC interconnection wide perspective for individual organizations to use in formulating their own comments when requested by the PCC.

10 RPEWG – 4 th TRD 4 th TRD Report in review – Data review in progress Data sharing with CEA – Determine how CEA looks and evaluates trending – Share attribute data with CEA (confidential) 100% of TRD Data received Common Corridor Improvements – Still strides to be made in data collection and uses

11 MVWG Load Model New motor load model developed in MVWG – More appropriate modeling of motor loads has impact to system voltage response Model review by TSS RS Concerned about WECC Table W-1


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