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Transcript of Oncor Electric Delivery Study on Residential Electric Vehicle Charging SWEDE Conference 2012 Ron...
![Page 1: Oncor Electric Delivery Study on Residential Electric Vehicle Charging SWEDE Conference 2012 Ron Shipman.](https://reader035.fdocuments.us/reader035/viewer/2022081504/56649f155503460f94c2b2e1/html5/thumbnails/1.jpg)
Oncor Electric Delivery
Study on Residential Electric Vehicle Charging
SWEDE Conference 2012Ron Shipman
![Page 2: Oncor Electric Delivery Study on Residential Electric Vehicle Charging SWEDE Conference 2012 Ron Shipman.](https://reader035.fdocuments.us/reader035/viewer/2022081504/56649f155503460f94c2b2e1/html5/thumbnails/2.jpg)
2Oncor Electric Delivery
Introduction
•Impact of EV chargers on our system?
•Problems?
•Severity?
•Required Actions?
![Page 3: Oncor Electric Delivery Study on Residential Electric Vehicle Charging SWEDE Conference 2012 Ron Shipman.](https://reader035.fdocuments.us/reader035/viewer/2022081504/56649f155503460f94c2b2e1/html5/thumbnails/3.jpg)
3Oncor Electric Delivery
Selection of Study Sites
Voltage (kV)
Peak Season
Area Year Built
Construction Characteristics
12.5 Summer Fort Worth 1965 Overhead (OH) w/ secondary
13.2 Summer Dallas 1965 OH parallel transformers w/ secondary
12.5 Summer Fort Worth 1976 Underground (UG) w/o secondary
12.5 Winter Plano 1979 UG w/ secondary (no flicker consideration)
24.9 Summer Round Rock 2006 UG w/ secondary
![Page 4: Oncor Electric Delivery Study on Residential Electric Vehicle Charging SWEDE Conference 2012 Ron Shipman.](https://reader035.fdocuments.us/reader035/viewer/2022081504/56649f155503460f94c2b2e1/html5/thumbnails/4.jpg)
4Oncor Electric Delivery
Study Parameters
•Modeled Distribution System
•Coincident Peak AMS Data
•Simulated Chargers
Level 2 Charging
Penetration Levels
Multiple Scenarios
![Page 5: Oncor Electric Delivery Study on Residential Electric Vehicle Charging SWEDE Conference 2012 Ron Shipman.](https://reader035.fdocuments.us/reader035/viewer/2022081504/56649f155503460f94c2b2e1/html5/thumbnails/5.jpg)
5Oncor Electric Delivery
CYME Subdivision Modeling
C
C
C
C
C
CC
C C
C
C
C
C
C
CC
C
CC
C
CC
C
C
C
C
C
C
C
B B
C
C
C
C
C
C
A
A
AA
Overview Map
![Page 6: Oncor Electric Delivery Study on Residential Electric Vehicle Charging SWEDE Conference 2012 Ron Shipman.](https://reader035.fdocuments.us/reader035/viewer/2022081504/56649f155503460f94c2b2e1/html5/thumbnails/6.jpg)
6Oncor Electric Delivery
CYME Subdivision Modeling (cont’d)
•Maximum local transformer impedance
•Minimum service size
•Modeled Triplex
![Page 7: Oncor Electric Delivery Study on Residential Electric Vehicle Charging SWEDE Conference 2012 Ron Shipman.](https://reader035.fdocuments.us/reader035/viewer/2022081504/56649f155503460f94c2b2e1/html5/thumbnails/7.jpg)
7Oncor Electric Delivery
AMS Generated 24-Hour Load Profile
Average Load Data
0
1
2
3
4
5
6
0:15
1:15
2:15
3:15
4:15
5:15
6:15
7:15
8:15
9:15
10:1
511
:1512
:1513
:1514
:1515
:1516
:1517
:1518
:1519
:1520
:1521
:1522
:1523
:15
Time of Day
Div
ersi
fied
Lo
ad [
kW]
Average Load
Average Load (Averaged)
SCADA Load per Cust.
![Page 8: Oncor Electric Delivery Study on Residential Electric Vehicle Charging SWEDE Conference 2012 Ron Shipman.](https://reader035.fdocuments.us/reader035/viewer/2022081504/56649f155503460f94c2b2e1/html5/thumbnails/8.jpg)
8Oncor Electric Delivery
Results
•Fuse Loading
•Primary Cable Loading
•Transformer Loading
•Secondary Cable Loading
•Service Cable Loading
•Voltage Drop
•Localized Issues
![Page 9: Oncor Electric Delivery Study on Residential Electric Vehicle Charging SWEDE Conference 2012 Ron Shipman.](https://reader035.fdocuments.us/reader035/viewer/2022081504/56649f155503460f94c2b2e1/html5/thumbnails/9.jpg)
9Oncor Electric Delivery
Locations EV and EVGO Requested
•2011 – 157 Locations
•2012 - 25 Locations to Date
•Addressed (2) Transformers
•Addressed (1) Secondary Cable
•Installed 19 EVGO Locations
![Page 10: Oncor Electric Delivery Study on Residential Electric Vehicle Charging SWEDE Conference 2012 Ron Shipman.](https://reader035.fdocuments.us/reader035/viewer/2022081504/56649f155503460f94c2b2e1/html5/thumbnails/10.jpg)
10Oncor Electric Delivery
Questions?