Energy Gateway Update for
Wyoming Infrastructure Authority
January 27, 2009
Darrell Gerrard
Vice President Transmission System Planning
PacifiCorp Energy Gateway Program Update
PacifiCorp Overview
Energy Gateway Foot Print
Energy Gateway Program Overview and Update
Energy Gateway Base Case Analyses
Key Issues and Next Steps
© 2000 PACIFICORP | PAGE 2
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PacifiCorp Overview
Customers (million)
Annual Call Volume (millions)
Number of Meters (millions)
Retail Energy Sales (TWh)
Generating Capacity (MW)
Line Miles
Substations
Number of Employees
1.7
5.7
1.8
53
9,286
77,000
900
6,500
© 2000 PACIFICORP | PAGE 3
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© 2000 PACIFICORP | PAGE 4
System Load and Resource Balance*
* December 18, 2008 public IRP presentation
Energy Gateway Program Overview
–
1900+ miles of high voltage
transmission
– ~$6.0B invested over 10 years
–
Key segments in service by 2014
– Design “hub and spoke” concept
– Options to transport Generation


Wind
Thermal
New and Existing
–
Planned to support up to 3000
MWs capacity
–
PacifiCorp’s network allocation
targeted at 1500MWs
© 2000 PACIFICORP | PAGE 5

Interdependency of 500 kV facilities
1
2
© 2000 PACIFICORP | PAGE 6
– Current system 230 and
345 kV
– No 500 kV in footprint
– Need “n-1” backup
– (1) Energy Gateway West
 Aeolus to Populus
– (2) Energy Gateway South
 Aeolus to Mona
– Technical
 Issued Phase 1 rating report for key Energy
Gateway segments – 11/21/08
 Obtained Phase 2 rating approval for
Populus-Terminal Line (Segment B)
– Commercial
 Completed revised permitting agreement
with Idaho Power
 Completed equity offering and open access
service offering
– Siting and permitting
 Community and landowner events
 Mona – Oquirrh draft EIS – April 09
 Energy Gateway West draft EIS – Dec. 09
– Regulatory
 FERC incentive rate declaratory order –
10/21/08
© 2000 PACIFICORP | PAGE 7
Energy Gateway Progress Update
Energy Gateway Base Case Analysis
Energy Gateway Project
SALEM
To
BOARDMAN
YELLOW TAIL
MONTANA
20
Gateway West
2
WYODAK
SAND HOLLOW
BOISE
SUMMER
LAKE
WIND STAR
HEMMINGWAY
GOSHEN
DAVE JOHNSTON
KINPORT
MID POINT
To
CAPTAIN JACK
ATLANTIC
CITY
BORAH
OREGON
CEDAR
HILL
WIND
RIVER
POPULUS
IDAHO
NEVADA
UTAH
Gateway Central
MID
VALLEY
CHEYENNE
SALT LAKE
CITY
TERMINAL
COLORADO
FLAMING
GORGE
CRAIG
4
HAYDEN
CAMP
WILLIAMS
2
2
4
OQUIRRH
2
2
2
BONANZA
90TH
SOUTH
MONA
2
DENVER
2
HUNTINGTON
CAMP
WILLIAMS
2
To MONA
Gateway South
SIGURD
CAPACITY / RAS
500 kV
345 kV
PINTO
230 kV
Revision: 2.3
Updated on: 8/8/07
RED
BUTTE
HARRY
ALLEN
CRYSTAL
NEW MEXICO
ARIZONA
FOUR
CORNERS
© 2000 PACIFICORP | PAGE 8
LIMBER
2
MINERS
CRESTON
WYOMING
2
2
ROCK
SPRINGS
BEN
LOMOND
TERMINAL
2
AEOLUS
BRIDGER
Base Case Generation Assumptions – Phase I
– WECC Phase I Comprehensive Progress Reports for Gateway West and
Gateway South completed - November 21, 2008
– 3 base case scenarios were included in the analysis:

Scenario 1a / 1b - Evaluated the system under a wide range of thermal vs.
wind resource conditions based on the following assumptions:
o Wyoming high thermal and moderate wind resources based on the 2007
PacifiCorp Integrated Resource Plan.
o High wind and moderate thermal resources modeled in (1b) base case based
on OASIS queue requests and projections
Scenario 1c: Developed to evaluate the southern Utah transmission system
(TOT 2C/2B) and Mona South path under simultaneous S to N flow
conditions.
– Gateway West (West of Bridger) utilized the Case 1a base case
– Gateway West (East of Bridger) and Gateway South utilized all three
base cases.
– Ultimately, specific economic and technology evaluations and
siting/permitting processes will need to run their course before specific
resources that will be served by the Gateway Project are determined.
© 2000 PACIFICORP | PAGE 9
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Wyoming Base Cases 1a vs. 1 b Comparison
Case 1 b (new) - Generation Projects
(HighWind Generation)**
Location
Dave Johnston Area
Other Windstar
Windstar
Generation Type
Thermal
Wind
275
1500
Creston
Foote Creek
Other Aeolus
Aeolus
Upper Green River
Subtotal
Total
Generation Type
Thermal
Wind
2825
1050
275
600
1953
3775
2000
5875
-900
500
1875
-872
28
1229
5875
1041.5
493
150
1150
-1000
493
493
150
-850
0
4000
Zone
Total
187.5
493
500
2100
0
187.5
434
1657.5
0
500
Generation Type
Thermal Wind
2279
1050
1500
Zone
Total
575
503
1050
Spence
Jim Bridger Area
Zone
Total
CASE 1A/B COMPARISON
-1900
0
1900
© 2000 PACIFICORP | PAGE 10
Case 1 a/d - Generation Projects
(Moderate Wind Generation)
WY 2015 Case 1a – High Thermal / Moderate Wind
POPULUS
Thermal %100
%63
Thermal
Wind Star
Generation
2825 MW
f 4
to 7
es 12
W lus
W
o
Ae M
GW
Central
JIM
BRIDGER
%37
Wind
T
34 OT
36 4
M A
W
Bridg
er
5201 West
MW
WIND
STAR
Jim Bridger
Generation
2000 MW
AEOLUS
olus
of Ae
South 7 MW
0
0
3
Wind
%100
Aeolus
Generation
1050 WM
MONA
Mona South
2429 MW
PINTO
TOT 2C
2106 MW
HA/CRSTL
TOT 2B2
251 MW
GLEN
CANYON
TOT 2B1
561 MW
FOUR
CORNERS
© 2000 PACIFICORP | PAGE 11
SIGURD
RED
BUTTE
WY 2015 Case 1b – High Wind / Moderate Thermal
POPULUS
Thermal %
87
Bridg
er
5200 West
MW
Spence Generation
493 MW
Wind
%100
f 2
to 5
es 20
W lus
W
o
Ae M
GW
Central
JIM
BRIDGER
WIND
STAR
Jim Bridger
Generation
1050 MW
Wind
%55
Thermal
%45
Wind Star
Generation
1953 MW
4A
T MW
TO 92
29
AEOLUS
olus
of Ae
South 7 MW
300
Aeolus
Generation
2279 WM
Wind
%100
MONA
Mona South
2427 MW
PINTO
TOT 2C
2103 MW
HA/CRSTL
TOT 2B2
252 MW
GLEN
CANYON
TOT 2B1
561 MW
FOUR
CORNERS
© 2000 PACIFICORP | PAGE 12
SIGURD
RED
BUTTE
WY 2015 Case 1c – High Southern UT S-N Path Flows
POPULUS
Thermal
%100
Th
%67
Wind Star
Generation
375 MW
f
t o 75
es 9
W lus
o W
Ae M
GW
Central
JIM
BRIDGER
W
%33
T
12 OT
98 4
M A
W
Bridg
er
3345 West
MW
WIND
STAR
Jim Bridger
Generation
600 MW
AEOLUS
olus
of Ae
South 4 MW
51
W
Aeolus
%100 Generation
125 WM
MONA
Mona South
789 MW
PINTO
TOT 2C
1708 MW
HA/CRSTL
TOT 2B2
251 MW
GLEN
CANYON
TOT 2B1
601 MW
FOUR
CORNERS
© 2000 PACIFICORP | PAGE 13
SIGURD
RED
BUTTE
Key Issues and Next Steps
Key Issues:
•
•
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System is planned at 3000MWs; scalable
Decision to deliver 1500MWs needed shortly to maintain engineering and
permitting schedules
Rigid delivery structure is necessary to maintain schedule
Customers and equity partners have declined participation opportunities
US Government participation a possibility
Resource support (capacity and energy via ancillary services) will be
necessary
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Mona – Oquirrh draft EIS – April 2009
CPCNs – July 2009
Gateway West draft EIS – December 2009
Mona – Oquirrh final EIS – December 2009
© 2000 PACIFICORP | PAGE 14
Next Steps:
Questions?
© 2000 PACIFICORP | PAGE 15
Energy Gateway website
www.pacificorp.com/energygateway