facility ratings alert recommendation update dl/march_21... · • november 30, 2010 – gerry...

Facility Ratings Alert Recommendation Update High and Medium Priority Assessments Roman Carter, Manager – Reliability Assurance March 21, 2013

2 RELIABILITY | ACCOUNTABILITY

Agenda

• Welcome- Introduction • Background • History of Facility Ratings Alert Recommendation • January 15, 2013 Update • Question and Answer


Background on Alert: • A vegetation contact by a Transmission Owner

identified actual field conditions that varied significantly from design assumptions – to the point where some facility ratings were considered inaccurate or in question.

• Follow-up resulted in the conclusion that this situation was not restricted to one entity or region.

• As a result, NERC issued an Alert Recommendation to proactively identify other such conditions and promote corrective actions.

Recommendation Background


FAC Alert Milestones: • October 7, 2010 – Original Alert issued • October 28, 2010 and November 29, 2010 – Informational

webinars • November 30, 2010 – Gerry Cauley letter on guidance • January 14, 2011 – Q&A document to respond to issues. • May 11, 2011 – Assessment Plan Review Criteria posted • May 12, 2011 – Webinar: Discussed Assessment Plan

Review Criteria and reporting guidance to owners • July 15, 2011 – First “high” priority assessment report due

Recommendation History


FAC Alert Milestones: • September 22, 2011 – Webinar with results from July 15, 2011

high-priority assessment report.

• January 15, 2012 – Second report on high-priority assessments due.

• March 20, 2012 – Webinar on second high-priority reports.

• July 17, 2012 – First report on medium-priority assessments due.

• October 3, 2012 – Webinar on first medium-priority assessments reports.

• January 15, 2013- Second report on medium-priority assessments due.

• March 21, 2013 – Second webinar on medium-priority assessments reports and update on high remediation efforts.

Recommendation History


High-Priority Update on Remediation Efforts


As of January 2013:

• All 76,125 “high” priority miles have been assessed • All 3,519 circuits have been assessed • 7,966 discrepancies • 718 circuits containing discrepancies have been

remediated (79% of the circuits with discrepancies)

With one exception, entities providing high-priority remediation completion dates expect to be completed by July 13, 2013.

The one exception requires federal approval and is expected to be completed in April 2014.

Summary of High-Priority


High-Priority Extensions

Assessment extensions were requested for the following reasons: • Damage and repairs required from the August 2011

Hurricane Irene (for Transmission Facility Owners in the Northeast)

• Limited number of LiDAR/PLS-CADD vendors

• Coordination with other entities

• Manpower

• Federal approval or permit required


High Remediation Status


Remediation by Region High Remediation Status by Circuit

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

FRCC MRO NPCC RFC SERC SPP TRE WECC

96%

68%

86%

96%

71% 71%

100%

66%

4%

32%

11%

4%

29%

25%

0%

31%

0% 0%3%

0% 0%

4%

0%

3%

Complete

In Progress

Not Started


Medium-Priority

Medium-Priority Update on Assessments and Remediation


As of January 2013:

• 87,560 miles assessed

• 6,284 circuits were assessed

• 14,993 discrepancies were discovered

• 5,098 discrepancies have been mitigated

• 13,908 miles remain to be assessed

• 34% of circuits with discrepancies have been mitigated

• 73% of discrepancies were inadequate ground/structure clearance.

Summary Medium-Priority


Medium-Priority Extensions

Six month assessment extensions were granted for the following reasons:

• Damage and repair from the August 2011 Hurricane Irene and the October 2012 Hurricane Sandy (for Transmission Facility Owners in the Northeast)

• Limited LiDAR/PLS-CADD vendors • Budgeting constraints • Coordination with other entities • Federal permitting

Remediation extensions have not been requested. Entities have 12 months from date the discrepancy was confirmed.


Circuits Assessed with Discrepancy

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%


45%

56%

34%

41%

32%29%

16%

46%

Medium % of Circuits Assessed with a Discrepancy


Percent of Miles Assessed for Medium

98%

87%

82%

94%

73%

100%

73%

91%

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%



Medium: Inspection Types

Field Inspection20%

Ground Survey8%

LiDAR / PLS-CADD70%

N/A1%

Combination of Methods1%


Medium: Top 5 Remediation Categories

Raised Transmission Structure

34%

Combination25%

Increase Conductor -Conductor Clearance

15%

Underbuild Lowered15%

Removed object11%


Medium: Remediation Status By Circuit

Complete34%

In Progress55%

Not Started11%


Medium: Discrepancy Categories

Ground / Structure Clearance

73%

Clearance to Underbuild

9%

Conductor-Conductor Clearance

10%

Other2%

Transmission Crossing6%


Medium: Percent of Circuits Assessed with Remediation Completed

0%

5%

10%

15%

20%

25%

30%

35%

40%

45%


20% 20% 20%

35%

40%

9%

41%

12%


Reference Material

Reference Materials for the Facility Ratings Alert Recommendation are provided on the Facility Rating Webpage on the NERC Website:

http://www.nerc.com/filez/facility_ratings_alert.html

For information on the Recommendation, contact:

Roman Carter @ (609) 651-1496

[email protected]

http://www.nerc.com/filez/facility_ratings_alert.html�

mailto:[email protected]�


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facility ratings alert recommendation update dl/march_21... · • november 30, 2010 – gerry...

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