Post on 30-May-2018
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Oncor Electric Delivery
OncorSnowstormPower
RestorationEfforts
8/14/2019 Oncor Presentation
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Oncor Electric Delivery
Unprecedented winter storm event
All Data is Preliminary
A record
Snowfall inD/FW Area
12.5 inchesin 24 hours
Wet Snow
(1 cubic footweighs 25 lbs)
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Fourth Worst Storm In Oncors History
Outagesoverthecourseofthestorm: 572,682
Total Customer Outages Dallas: 185,710
Maximum Customers Out: 234,225 Fri 2/12 9:00 AMDallas - 80,211 Fri 2/12 2:00 AM
RestorationPersonnel:
3,159
1026CompanyEmployees
including203DamageEvaluators
184MutualAssistanceCrews
649
Contract
Distribution
resources
1,300VegetationManagement
Contractors
SafetyStatistics:
4SafetyIncidents
1Vehicleaccident Dallas
All Data is Preliminary
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Oncors response
All Data is Preliminary
EarlyplanningforthestormcommencedonThursdaymorning. Emergencyresources,
bothon
system
and
off
system,
were
placed
on
standby
and
began
arriving
Friday
and
Saturdaytoescalatetherestorationeffortalreadyunderway.
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Oncors Storm Restoration Process is a Proven Process
Process: Damage evaluators and first
responders collect storm damage informationfor Command Center to determine workersand materials needed for restoration.
Restoration Priority:Critical loads: hospitals, police stations, firestations, critical water and wastewaterfacilities, and customers with special in-houselife-sustaining equipment.
Next: Repair equipment that will restore powerto the most customers as quickly and safely
as possible.
Feeders (1,000s)
Line Fuses (100s)
Transformers (2-10)
Service Lines (1) All Data is Preliminary
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The new outage management system and smart meters will soon provide Oncor moreautomated outage data and restoration information.
Technology and Customer Calls Play a Key Role in OutageRestoration
Dallas
All Data is Preliminary
Operation Center
Troublemen
WORK ORDER
Call Center
ComputerSystems
Operation Center
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How Oncor Locates Power Outages
Alerts
Number and LocationCustomer Calls
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0
2
4
6
8
10
12
14
0
50
100
150
200
250
Thu2/1112AM Thu2/11Noon Fri2/1212AM Fri2/12Noon Sat2/1312AM Sat2/13Noon Sun2/1412AM Sun2/14Noon Mon2/1512AM Mon2/15Noon Tue2/1612AM Tue2/16Noon
CumulativeSnowfallinInches
Cust
omersOut(000)
Feb2010SystemandDallas CustomerOutagebyHour
OncorCustomersOut(preliminary) DallasCustomersOut(preliminary) InchesCumulativeSnowfall(NOAADFWStation)
MaxDallas CustomerOutagecount
of80,211occuredFriday,2/12at
2:00AM
All Data is Preliminary
70% of the Dallas region outageswere due to trees
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Vegetation Management program played acrucial role in reducing potential outages
Distributionfeederswhichhavehad
vegetationpruningintheproceedingfour
yearsexperiencedapproximately1/3the
numberofoutagesasthosenotprunedin
thepriorfouryears.
All Data is Preliminary
Theimpactofthestormcouldhave
beenmuchworse.Recentpruning of
mainlinesdramaticallyreducedthe
likelihoodofafeederoutage.
Additional
post
storm
pruning
will
take
placeinthecomingweeksinareaswhere
treescausedpoweroutages.
Contractorswillremovebrushfromthe
pruningbutitmaynotbeatthetimeof
pruning.
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Communication with City During the Storm
Initialcommunicationfocusedonprovidinganoverallstormimpact
assessmentandtobegincoordinatingwithcityemergency
managementandpublicworksrepresentativestoidentifycritical
customers(suchassewerliftstations,waterpumpfacilities,hospitalsandothercriticalcustomers)whowerewithoutpower.
OncoremployeesstaffedpositionsattheOncorEmergency
OperationsCenters
and
the
City
of
Dallas
Emergency
Operations
Center.
Oncorrepresentativesalsospentsignificanttimerespondingto
electedofficials,
community
leaders
and
city
staff
to
provide
press
releasesandfollowupwithcustomersasrequested.
All Data is Preliminary
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Call Center Volumes were Significant
AgentCalls IVR/TFCC*
TotalCalls
55,999 640,905
OverallHighestHourofCalls
2/11/201045PM 1,863 2/12/1089AM 39,270
DailyPeak
Hours
2/11 4
5PM 1,863 910PM 20,623
2/12 910AM 1,575 89AM 39,270
2/13 1011AM 856 910AM 9,666
2/14 910AM 583 9
10AM 3,377
AverageCallsPerHour
2/11 842 5,897
2/12 840 15,382
2/13 411 3,810
2/14 240 1,615
Call Volumes
0
50,000
100,000
150,000
200,000
250,000
300,000
350,000
400,000
Thu 2-11 Fri 2-12 Sat 2-13 Sun 2-14
Agent Only IVR/TFCC
* Interactive Voice Response and out-of-state peakvolume call center resources
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Unprecedented winter storm event
All Data is Preliminary
Critical Load including pumping stations,hospitals and police stations restoredwithout significant incidents
Schools were restored in time for Monday classes
Tree pruning significantly reduced outages Elected officials were able to reach Oncor contacts
for escalated issues
What went right?
What needs improvement?
Communication, Communication, Communication- About
- our restoration process and progress
- estimated restoration timeframes
- With- Customers- City Officials
- Media
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Process Changes Underway based on Lessons Learned
All Data is Preliminary
Communication
- Interactive Voice Response System improvements- Greater Access to live agents- More effective outbound messaging- Improved wire down communication with customers
More information on restoration process and progress- More timely updates on critical load- High level work area information- Estimated restoration time frames
Near Term
Already Planned for 2011 and BeyondA new outage management system and smart meterswill provide more timely information regarding outages and restoration progress
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Thank you for your support and patience during thisunprecedented winter storm event!
All Data is Preliminary
D/FW Metroplex