rocky mountain power load growth and network planning april 27, 2007 mark adams

Rocky Mountain Power Load Growth

andNetwork Planning

April 27, 2007

Mark Adams

First stop,

Wyoming Industrial Load Growth

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– New and Proposed Industrial Loads– Jonah Field / Upper Green River Basin

Load locations Our latest network planning

– Wamsutter / South Central Wyoming Load locations Our latest network planning

– Entire State Additional large load Our latest network planning

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Projected Load IncreasesP

roje

ct

Load Location

Probability of

Occurrence

Projected MW Load Increase 2007 2008 2009 2010 2011 2012

1 Pinedale High 25.0 0.0 18.0 22.0 22.0 22.0 22.02 Pinedale Medium 15.0 0.0 0.0 0.0 15.0 15.0 15.03 Pinedale High 85.0 0.0 9.0 15.0 41.0 41.0 62.04 Pinedale Low 150.0 0.0 0.0 50.0 75.0 100.0 125.05 Pinedale High 4.0 1.0 4.0 4.0 4.0 4.0 4.06 Pinedale High 10.0 2.5 5.0 7.5 10.0 10.0 10.07 Jonah High 80.0 0.0 80.0 80.0 80.0 80.0 80.08 Shute Creek Medium 30.0 0.0 14.0 30.0 30.0 30.0 30.09 Kemmerer High 42.0 21.0 21.0 42.0 42.0 42.0 42.0

10 Kemmerer High 7.0 1.0 7.0 7.0 7.0 7.0 7.011 Kemmerer High 9.0 0.0 9.0 9.0 9.0 9.0 9.012 Evanston High 2.5 1.0 2.5 2.5 2.5 2.5 2.513 Rock Springs Medium 90.0 0.0 0.0 0.0 21.0 34.0 47.014 Rock Springs High 6.0 0.0 6.0 6.0 6.0 6.0 6.015 Bittercreek (Monell) High 25.0 9.0 16.0 23.0 25.0 25.0 25.016 Wamsutter High 2.5 1.5 2.5 2.5 2.5 2.5 2.517 Rawlins High 65.0 0.0 0.0 20.0 39.0 45.0 52.018 Rawlins Low 130.0 0.0 0.0 0.0 0.0 0.0 30.019 Wamsutter High 4.0 2.0 3.5 3.5 4.0 4.0 4.020 Rawlins High 12.0 4.0 8.0 12.0 12.0 12.0 12.021 Rawlins Medium 12.0 0.0 0.0 0.0 4.0 8.0 12.022 Atlantic Rim High 60.0 0.0 0.0 15.0 20.0 24.0 29.023 Rawlins High 12.0 9.0 12.0 12.0 12.0 12.0 12.024 Hanna Medium 15.0 0.0 0.0 0.0 7.0 15.0 15.025 Cody High 2.0 2.0 2.0 2.0 2.0 2.0 2.026 Cody High 4.0 0.0 1.0 2.0 3.0 4.0 4.027 Riverton Medium 2.0 0.0 2.0 2.0 2.0 2.0 2.028 N. E. of Casper Medium 23.0 0.0 11.0 23.0 23.0 23.0 23.029 Claim Jumper/Salt Creek High 86.0 11.0 16.0 24.0 32.0 37.0 48.030 Douglas High 3.0 0.8 3.0 3.0 3.0 3.0 3.0

Total 1013 66 253 419 555 621 737

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Wyoming Industrial Load Forecast - Megawatts

0

500

1000

1500

2000

2500

2007 2008 2009 2010 2011 2012

Low Prob

Med Prob

High Prob

Base Load

A display of the 2006 Wyoming peak load for all customers (Base Load) with a 2% year on year load growth overlaid with the new industrial load growth.

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Jonah Field

80

KEM MERER

EVANSTON

ROCK SPRINGS

PINEDALE

LA BARGE

DANIEL

EDEN

BIG PINEYA tlanticC ity

NaughtonOpa l

Monument

B lacks Fork

Westvaco

Palisades

F ireho leM ansfaceS outhTrona

Rock Springs

Chappel

S huteCreek

B lue R im

1-252-15

3-854-150

5-46-10

7-80

8-30

9-4210-711-9

12-2.5

Total Load of 545.5 Megawatts

Jonah is one of the largest gas fields in the U.S. with reserves of 2.5 trillion cubic feet of gas.

The loads in this geographic area represent natural gas processing and transportation and CO2 capture and transportation customers.

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Jonah Field Infrastructure

6

80

KEMMERER

EVANSTON

ROCK SPRINGS

PINEDALE

LA BARGE

DANIEL

EDEN

BIG PINEYAtlanticCity

NaughtonOpal

MonumentBlacks ForkWestvaco Palisades

FireholeMansfaceSouthTrona

Rock Springs

Chappel

ShuteCreek

Blue Rim

7

3

42

5

1

9

8

10

Chimney Butte 75MVA

Jonah Field Switchrack (future 100MVA sub)

Paradise 75MVA

Ross Switchrack

Wind River Phase Shifter

to Creston Switchrack

230kV

230kV

230kV

230kV

230kV

230kV & 69kV

230k

V

69kV

230k

V

230kV

Planned Ultimate69kV Line miles 14 14230kV Line miles 95 30069kV SwitchRacks 0 1230kV SwitchRacks 1 369-25kV Subs 1 1230-69kV Subs 2 3230-35kV Subs 0 0

Today

Planned

Ultimate Build-out (at today’s known and queued future loads and generation)

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Wamsutter / South Central Wyoming

80RO CK S PRING S

WAMS UTTER

BA IROIL

RAW LINS

ED EN

SU PE RIOR

SINC LA IR

HA NNA

CE NTENN IA L

ELK MO UNTA IN

M us ta ng

M inersP la tte

J im Bridge r

B ar-XP oin to f R ock s

F ireh oleM an sfac e

P alisa de s

B lu e R imRock Springs 13-90

14-6 15-25

16-2.517-6518-130

19-4

20-12 21-12 22-60

23-1224-15

Total Load of 433.5 Megawatts

The loads in this geographic area represent nature gas and oil processing, transportation, CO2 injection, and coal bed methane customers.

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Wamsutter / South Central Wyoming Infrastructure

Blue Rim80ROCK SPRINGS

WAMSUTTER

BAIROIL

RAWLINS

EDEN

SUPERIOR

SINCLAIR

HANNA

CENTENNIAL

ELK MOUNTAIN

Mustang

MinersPlatte

Jim Bridger

Bar-XPointof RocksFirehole

Mansface

PalisadesRock Springs

1215

13

16

17

18

19

20

To Two Elk 250MW Generation

230k

V

230kV

230kV

Latham 25MVA

230kV to Atlantic Rim

Creston Switchrack

to Wind River Switchrack

230kV

230kV

Barrel Springs 75MVA


Today

Planned


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All Projects in Wyoming

YE LLOW S TONE NAT IONA L PARK

GR AND TETONNAT IONA L PARK

80

80

25

25

90

90

KE MME RER

EVANS TON

RO CK S PRING S

W AMS UTT ER

PIN EDA LE

LAND ER

RIV ERTON

R iv erton

BA IROIL

RAW LINS

LARA MIE

CH EYE NN E

GLEN DO

DO UGLAS

GLEN ROC KCA SP ER

PO W DE R RIVE R

MIDW E ST

GILLETTEBU FFALO

SH ERID AN

W OR LA ND

TH ER MOPO LIS

CO DY

LOVE LL

LA BA RGE

DA NIEL

ED EN

BIG P IN EY

SU PE RIOR

SIN CLA IR

HA NNA ME DICINE B OW

CE NT ENN IA L

ELK MO UNTA IN

F ra nn ie

M idw es t

Te ck laTri-S ta te

W yo da kB uffa lo

S he rida nG oo se C ree k

G arlan d

O reg on B asin

G rass C reek

W yo po

A tlan ticC ity

M us ta ng

S pe nceW APA

M iners

F oote C ree k

P la tte

J im Bridge r

B ar-XP oin to f R ock s

N au ghto nO pa l

F ireh o le

L ittle M o unta in

M an sfac eS ou thTrona

Rock Springs

T herm o polis

C ha ppe l

S hu teC reek

B lu e R im

27-2

25-226-4

29-86

30-3

28-23

5

2

1

13

3

6

98

7

10

11

1214

1615

17

18

19

20

23

21 22

24

Balance of the additional new industrial load in Wyoming is 120 Megawatts, mostly oil and gas processing customers.

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Infrastructure in Wyoming

t


Today

Planned


YELLOWSTONE NATIONAL PARK

GRAND TETONNATIONAL PARK

80

80

25

25

90

90

KEMMERER

EVANSTON

ROCK SPRINGS

WAMSUTTER

PINEDALE

LANDER

RIVERTON

Riverton

BAIROIL

RAWLINS

LARAMIE

CHEYENNE

GLENDO

DOUGLAS

GLENROCKCASPER

POWDER RIVER

MIDWEST

GILLETTEBUFFALO

SHERIDAN

WORLAND

THERMOPOLIS

CODY

LOVELL

LA BARGE

DANIEL

EDEN

BIG PINEY

SUPERIOR

SINCLAIR

HANNA MEDICINE BOW

CENTENNIAL

ELK MOUNTAIN

Frannie

Midwest

aTri-State

WyodakBuffalo

SheridanGoose Creek

Garland

Oregon Basin

Grass Creek

Wyopo

AtlanticCity

Mustang

SpenceWAPA

Miners

Foote Creek

Platte

Jim Bridger

Bar-XPointof Rocks

NaughtonOpal

Monumen

t

Blacks F

ork

Wesvaco

Palisad

es

Firehole

Little Mountain

MansfaceSouthTrona

Rock Springs

Thermopolis

Chappel

ShuteCreek

Blue Rim

22

23

12

7

15

13

21

11

3

42

5

1 16

9

8

10

24

17

18

19

25

20

To Two Elk 250MW Generation

The physical electrical network requirements change dramatically as customers change facility sites and load requirements and as new customers make requests. The view represents approximately $500 million in transmission and distribution infrastructure investment.

2nd stop,

Utah Industrial & Commercial Load Growth

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Northern Utah

1. Northern Utah (less Salt Lake County) currently has 123 MW of proposed development.

123

4

56 7

8 9 101112

1413

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Projected Load Increases

Load Location

Probability of

Occurrence

Customer Projected

Load Increase MW 2007 2008 2009 2010 2011 2012

1 Northern Utah Medium 1.2 0.6 1.2 1.2 1.2 1.2 1.2

2 Northern Utah High 10.0 10.0 10.0 10.0 10.0 10.0 10.0



5 Northern Utah Low 4.0 4.0 4.0 4.0 4.0 4.0 4.0


7 Northern Utah Medium 0.9 0.9 0.9 0.9 0.9 0.9 0.9




11 Northern Utah Low 2.0 2.0 2.0 2.0 2.0 2.0 2.0




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South-East Utah

1. South-Eastern Utah has load requests totaling 192 MW. These increases are expected in the next 1-5 years.

12

3 45

67 8

9

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Load Location

Probability of

Occurrence

Customer Projected

Load Increase MW 2007 2008 2009 2010 2011 2012

1 Southeastern Utah High 1.2 1.2 1.2 1.2 1.2 1.2 1.2


3 Southeastern Utah Medium 8.0 0.0 4.0 8.0 8.0 8.0 8.0

4 Southeastern Utah Medium 16.0 0.0 10.0 10.0 10.0 10.0 10.0

5 Southeastern Utah Low 5.0 2.0 5.0 5.0 5.0 5.0 5.0






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South-West Utah

South-West Utah has load requests totaling 35 MW. These increases are also expected in the next 1-5 years

1

2 3 4

5

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Name

Probability of

Occurrence

Customer Projected

Load Increase MW 2007 2008 2009 2010 2011 2012

1 Southwest Utah High 3.5 0.0 3.5 3.5 3.5 3.5 3.5



4 Southwest Utah Medium 3.0 3.0 3.0 3.0 3.0 3.0 3.0




8 Southwest Utah Medium 10.0 10.0 10.0 10.0 10.0 10.0 10.0

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Salt Lake County

1

49

62

3

11

1075 8

– Northern Salt Lake County has had requests totaling 60 MW.

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Name

Probability of

Occurrence

Customer Projected

Load Increase MW 2007 2008 2009 2010 2011 2012

Northern Salt Lake County Medium 1.5 0.8 0.8 1.5 1.5 1.5 1.5

Northern Salt Lake County High 8.0 2.5 5.0 7.5 7.5 7.5 7.5


Northern Salt Lake County Low 8.5 8.5 8.5 8.5 8.5 8.5 8.5

Northern Salt Lake County Medium 0.9 0.9 0.9 0.9 0.9 0.9 0.9


Northern Salt Lake County High 18.0 4.0 9.0 13.0 18.0 18.0

Northern Salt Lake County Low 1.0 1.0 1.0 1.0 1.0 1.0 1.0




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South Salt Lake County

5

98

12

6

7

43

– Southern Salt Lake County has had requests totaling 33 MW.

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Rocky Mountain Power - New Utah Loads

Name

Probability of

Occurrence

Customer Projected

Load Increase MW 2007 2008 2009 2010 2011 2012

1 Southern Salt Lake County High 11.5 6.0 8.0 10.0 11.5 11.5 11.5




5 Southern Salt Lake County Medium 1.5 1.5 1.5 1.5 1.5 1.5 1.5

6 Southern Salt Lake County Low 2.0 1.5 2.0 2.0 2.0 2.0 2.0



9 Southern Salt Lake County Low 0.5 0.5 0.5 0.5 0.5 0.5 0.5

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Utah Industrial Load Forecast, MW’s

0

50

100

150

200

250

300

350

400

450

500

2007 2008 2009 2010 2011 2012

Low Prob

Med Prob

High Prob

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– Last stop,

Utah’s Wasatch Front – Residential and small commercial Load Growth

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Wasatch Front 2006 Summer Peak – What Happened?

Year Date Day Time MW CDD*

AnnualPeak CDD

Summer TotalCDD

2001 August 8 Wednesday 17:00 3,268 21.0 22.5 1,142

2002 July 15 Monday 17:00 3,473 22.0 25.0 1,121

2003 July 22 Tuesday 17:00 3,672 21.5 26.5 1,255

2004 July 14 Wednesday 17:00 3,558 19.0 22.0 907

2005 July 21 Thursday 16:00 3,853 21.0 24.0 1,042

2006 July 17 Monday 17:00 4,051 19.0 25.5 1,196

|---------------- Peak Day Statistics----------------------|

* Cooling Degree Day (CDD) = Avg (Tmax + Tmin) - 65

For example, a day with an average temperature of 80 °F will have a value of 15 CDD.

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Wasatch Front Monthly Peak Demand History

2,000

2,500

3,000

3,500

4,000

4,500

Jun-00

Dec-00

Jun-01

Dec-01

Jun-02

Dec-02

Jun-03

Dec-03

Jun-04

Dec-04

Jun-05

Dec-05

Jun-06

Dec-06

Jun-07

Dec-07

Jun-08

Loa

d (m

W)

WF distribution load (w/o industrials)

Expected peak load forecast = 4.0%

Base load growth = 1.7%

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Wasatch Front Post Peak Observations

– Summary Points The 2006 summer can be considered fairly normal

for purposes of infrastructure planning. Weather-normalized summer peaks are still

growing at more than 4 per cent. Weather sensitivity of peak demand increased to

60 MW/CDD (a net increase smaller than for past years).

Direct load control (Cool Keeper) reduced annual peak demand growth rate by 0.2%.

Questions?

rocky mountain power load growth and network planning april 27, 2007 mark adams

Documents

total load

wyoming peak load

year load growth

pacificorp page

customers base load

new industrial load

latest network planning

generation slide