Southwestern Public Service Co. (SPS)

Transmission Customer Meeting May 9, 2019

DISCUSSION TOPICS FOR TODAY

• Xcel Energy & SPS System Overviews

• Completed 2018 Projects

• 2019 and Future Projects

• SPP Model Building Discussion

• DISIS Overview

• NERC Standards Efficiency Review

• Questions and Adjourn 2

SYSTEM MAPS

Xcel Energy SPS

Northern States Power Co. Minnesota

(NSPM)

Northern States Power

Co. Wisconsin (NSPW)

Public Service Co. of

Colorado (PSCo)

Southwestern Public Service

Co. (SPS)

3

2018-2019

TRANSMISSION SYSTEM ADDITIONS

Atoka to Eagle Creek 115kV

(New)

5

115kV

19 miles

ISD: 12/2018

NTC: Yes

Cochran Co to Whiteface 69kV

(Rebuild)

6

69kV

25 miles

ISD: 12/2018

NTC: Yes

Custer Mountain to Ochoa 115kV

Custer Mountain to Whitten 115kV

(Rebuild)

7

115kV

15 miles

ISD: 5/2018

NTC: Yes

NE Hereford to La Plata 115kV

(New)

8

115kV

7 miles

ISD: 4/2018

NTC: Yes

CCN: Yes

Hobbs to Kiowa to North Loving to China Draw 345kV

(New)

Kiowa to Roadrunner 345kV

(Conversion)

9

345kV

88 miles

ISD: 3/2018

NTC: Yes

CCN: Yes

Roosevelt County Substation

(230kV Conversion)

10

230kV

ISD: 6/2018

Portales Loop 115kV

(New)

11

115kV

22 miles

ISD: 7/2018

NTC: Yes

Roswell Loop 115kV

(New)

12

115kV

15 miles

ISD: 1/2018

NTC: Yes

Sierra Distribution Substation

(New)

13

115/69kV

ISD: 12/2018

NTC: Yes

Canyon West to Deaf Smith 115kV

(Rebuild)

14

115kV

27miles

ISD: 11/2018

NTC: Yes

Carpenter 345kV Substation

(New)

15

345kV

ISD: 6/2018

NTC: Yes

CANCELLED NTC PROJECTS

16

Upgrade Potash Junction 230/115 kV Transformer

oReceived withdraw support from SPP staff

Second 230/115 kV Transformer at Plant

oReceived withdraw support from SPP staff

Pecos 230/115 kV Transformer Upgrade

oIn progress with SPP

Bailey – New Amherst – Lamb 115 kV project

oWithdrawn with SPP BOD approval

ACTIVE PROJECTS

*Project schedule and scope could be subject to changes.

Artesia Country Club 115kV Substation

(Conversion)

18

115kV

ISD: 12/2019

NTC: Yes

Eddy County Substation

(230kV Conversion)

19

230kV

ISD: 4/2019

NTC: Yes

Ink Basin Substation

(New)

20

230/115kV

ISD: 6/2018

NTC: Yes

Mustang to Shell CO2 115kV

(New)

21

115kV

9 miles

ISD: 5/2019

NTC: Yes

CCN: Yes

North Loving to Loving South 115kV

(Conversion)

22

115kV

3.5 miles ISD: 12/2019

NTC: Yes

Potash Junction to Livingston Ridge 115kV

(Rebuild)

23

115kV

14 miles

ISD: 3/2019

NTC: Yes

Tuco to Yoakum to Hobbs 345kV

(New)

24

345kV

160 miles

ISD: 6/2020

NTC: Yes

CCN: Yes

FUTURE PROJECTS

*Project schedule and scope could be subject to changes.

Amarillo Distribution Additions

(New)

26

4 New

Dist.Substations

ISD’s: 2020/21

Mustang to Seminole 115kV

(New)

27

115kV

20 miles

ISD: 6/2020

NTC: Yes

CCN: Yes

Tierra Blanca Substation

(New)

28

115kV

.5 mile

ISD: 10/2021

Tolk Substation

(230kV Conversion)

29

230kV

ISD: 12/2022

Tuco to Indiana 115kV

(Rebuild)

30

115kV 20 miles ISD: 10/2022

Terry Co to Denver City 115kV

(Rebuild)

31

115kV

37 miles

ISD: 11/2022

Cunningham to Monument Tap 115kV

Byrd Tap to Cooper Ranch to Oil Center to lea Road 115kV

(Rebuild)

32

115kV

20 miles

ISD: 4/2021

NTC: Yes

Eddy to Kiowa 345kV

(New)

33

345kV

34 miles

ISD: 11/2020 NTC: Yes

CCN: In Progress

China Draw to Phantom to Roadrunner 345kV

(New)

34

345kV

40 miles

ISD: 11/2021

NTC: Yes

CCN: Late 2019

South Loving to Malaga Bend to Phantom 115kV

(New)

35

115kV

21 miles

ISD: 11/2020

McDowell Creek Substation 230/115kV

(New)

36

230/115kV

ISD: 4/2022

NTC: Yes

Power for the Plains Website

37

http://www.powerfortheplains.com/

• Project descriptions

• Routing maps, when available

• General project information

QUESTIONS?