Facility Ratings Alert Recommendation Update DL/March_21... · • November 30, 2010 – Gerry...
Transcript of Facility Ratings Alert Recommendation Update DL/March_21... · • November 30, 2010 – Gerry...
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Facility Ratings Alert Recommendation Update High and Medium Priority Assessments Roman Carter, Manager – Reliability Assurance March 21, 2013
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Agenda
• Welcome- Introduction • Background • History of Facility Ratings Alert Recommendation • January 15, 2013 Update • Question and Answer
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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
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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
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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
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High-Priority Update on Remediation Efforts
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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
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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
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High Remediation Status
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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
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Medium-Priority
Medium-Priority Update on Assessments and Remediation
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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
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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.
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Circuits Assessed with Discrepancy
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
FRCC MRO NPCC RFC SERC SPP TRE WECC
45%
56%
34%
41%
32%29%
16%
46%
Medium % of Circuits Assessed with a Discrepancy
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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%
FRCC MRO NPCC RFC SERC SPP TRE WECC
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Medium: Inspection Types
Field Inspection20%
Ground Survey8%
LiDAR / PLS-CADD70%
N/A1%
Combination of Methods1%
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Medium: Top 5 Remediation Categories
Raised Transmission Structure
34%
Combination25%
Increase Conductor -Conductor Clearance
15%
Underbuild Lowered15%
Removed object11%
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Medium: Remediation Status By Circuit
Complete34%
In Progress55%
Not Started11%
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Medium: Discrepancy Categories
Ground / Structure Clearance
73%
Clearance to Underbuild
9%
Conductor-Conductor Clearance
10%
Other2%
Transmission Crossing6%
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Medium: Percent of Circuits Assessed with Remediation Completed
0%
5%
10%
15%
20%
25%
30%
35%
40%
45%
FRCC MRO NPCC RFC SERC SPP TRE WECC
20% 20% 20%
35%
40%
9%
41%
12%
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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
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Questions and Answers
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