2014/15 Integrated System (IS) 890 Local Planning
Stakeholder Meeting #2
Western Area Power
Administration
Upper Great Plains Region
Transmission Planning Stakeholder Meeting
Wednesday, December 10th, 2014
1:00 PM to 3:00 PM (MST)
Meeting Agenda
1:00 pm - Welcome
1:05 pm – Introduction of Attendees\Finalize Agenda
1:15 pm – Review of the 2014 Integrated System Evaluation and Plan
1:45 pm – Bakken Update
2:15 pm - Stakeholder Input / Open Discussion
2:30 pm – SPP Update Related to Planning
2:45 pm - Next Meeting Date and Closing Remarks
3:00 pm - Adjourn
Review of the 2014 Integrated System
Evaluation and Plan
• Area of Study broken into four geographical areas:
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Area 1: Eastern Montana and Western/Central North Dakota (Bakken)
Area 2: Central and Eastern North Dakota
Area 3: Western South Dakota
Area 4: Eastern South Dakota
 Eastern Montana and Western/Central North Dakota
• Completed Facility Additions in 2013-2014
 Watford City 230/115 kV #2 Transformer (April 2014): A parallel 230/115 kV transformer put inservice.
 Williston 230/115 KV1A Transformer and Williston 2 Substation (Summer/Fall 2014): A parallel
transformer was put in-service at Williston in April 2014. In the Summer/Fall of 2014 115 kV breaker
bays were added at Williston 2 for deliveries to NW Williston, Stateline, Grenora, Trenton and Tioga.
 Logan 115 kV 2x15 MVar Capacitors (June 2014) installed
 Reconductored Logan-SW Minot 115 kV (September 26th, 2014) to obtain higher line rating
Review of the 2014 Integrated System
Evaluation and Plan
 Eastern Montana and Western/Central North Dakota
• Planned Facility Additions
 Belfield 345/230 kV Transformer (November/December 2014-by End of Year): Parallel
transformer (old Leland Olds), will also uprate rating of Charlie Creek – Belfield 345 kV line.
 Reconductor Ward-Mandan 230 kV line (Spring 2015): Planned upgrade in order to accommodate
the addition of a 110 MW generator interconnection request (wind) on the Dickinson-Mandan 230 kV
line.
 Garrison 230/115 kV Transformer Replacement (Fall 2015): Transformer will be replaced with 200
MVA during the Garrison substation rebuild (age and require larger size for desired ~45 year lifespan)
 Garrison 230/115 kV Upgrade (Spring 2016): The Garrison 230/115 kV switchyard is being replaced
with a new double breaker yard. The replacement is needed due to age of equipment, space limitations
and inability to expand the existing yard.
 Reconductor Wolf Point-Circle-Dawson County 115 kV (2015-2017): Due to age and maintenance
issues.
Review of the 2014 Integrated System
Evaluation and Plan
 Eastern Montana and Western/Central North Dakota
• Proposed Facility Additions
 Hebron Substation (November 2015): New substation located on the Dickinson-Mandan 230 kV line
for 110 MW wind farm and to accommodate a future load delivery point.
 Beaver Hill Substation (End 2015/June 2016): New substation to supply a new interconnection along
Dawson County-Belfield 230 kV near Wibaux, Montana. Interconnection request related to serving
load growth caused by oil activity in area.
 Convert Williston-Fort Peck 115 kV line to 230 kV Operation (2020 or later): Proposed solution to
mitigate thermal and voltage concerns in Eastern Montana that have been observed in Local Planning
Studies (2024 timeframe). Will be evaluated in more detail in future studies to determine if this
conversion to 230 kV is necessary.
• Additional Planned/Proposed Projects presented with “Bakken Update” (later in
agenda)
Review of the 2014 Integrated System
Evaluation and Plan
 Central and Eastern North Dakota
• Planned Facility Additions
 Edgeley 115/69 kV KY1A Transformer Replacement (March 2015): Being replaced with 30 MVA
(accommodate load along Forman-Edgeley 69 kV)
 Rugby 115/41.8 kV KY1A Transformer Replacement (December 2015): Scheduled for replacement
due to age. Will be same size as existing transformer.
 Fargo 230/115 kV Transformer Replacement (Summer 2016): KV1A and KV2A will be replaced
with two 200 MVA transformers.
 Retirement of Fargo 115/69 kV Transformer (~2016)
• Proposed Facility Additions
 Rugby 115 kV Substation Reconfiguration (2015): Provide a dedicated bay at Western’s Rugby 115
kV substation to serve Central Power’s Rugby 115 kV connection. During this time, breaker bay 7
would also be upgraded. This project was initiated to resolve the impacts associated with a proposed
generator interconnection request (Rugby-Glenboro line)
 Spiritwood Plant (July 2016): The IS received a load interconnection request on the JamestownValley City 115 kV line to serve plant (48 MW). Request is currently under study.
Review of the 2014 Integrated System
Evaluation and Plan
 Western South Dakota
• Completed Facility Additions
 Philip 115 kV 2x15 MVar Capacitors (In-Service on June 19th, 2014): Provide voltage support in the
Pierre area (part of upgrades identified to remove the need for UVLS at Pierre and Irv Simmons for N-1
conditions)
• Planned Facility Additions
 Dry Creek-Rapid City 115 kV line (Fall 2015): Currently there is UVLS installed at Rapid City to
mitigate post-contingent undervoltages. This 115 kV line with 200 MVA 230/115 kV transformer at
Dry Creek are the system improvements planned in order to remove the UVLS
 Parallel Oahe 230/115 kV Transformer (Fall 2016): A 2nd 150 MVA 230/115 kV transformer will be
installed at Oahe. Part of upgrades needed to remove UVLS at Pierre and Irv Simmons for N-1
conditions. The existing 230/115 kV transformer will be replaced at a later date.
 Oahe Substation Upgrade (Fall 2016): The Oahe 230 kV and 115 kV main and transfer buses are
being converted to a double breaker/double bus. Upgrade part of improvements needed to remove
UVLS at Pierre and Irv Simmons for N-1 conditions.
 New Underwood 230/115 kV KV1A Transformer Replacement (2017 or later):
Replaced with 200 MVA size
Review of the 2014 Integrated System
Evaluation and Plan
 Western South Dakota
• Proposed Facility Additions
 Wanblee Tap (January 2016): The IS received a load interconnection request for a new 115 kV point
of delivery along WAPA’s Philip-Martin 115 kV line near Wanblee, South Dakota. Based on this
proposal, approximately forty percent of the load served from Martin would be shifted to the new
Wanblee tap.
 Eastern South Dakota
• Planned Facility Additions
 Sioux Falls 230/115 kV Transformer Replacements (Complete Both by January 2015): Studies
demonstrated the need to replace KV3A and KV5A with 250 MVA sized transformers. After the
replacement of both is complete, the normally open Sioux Falls-Lawrence 115 kV line will be closed.
 Summit KY1B 115/41.8 kV Transformer Replacement (May 2015): Sized 25 MVA, accommodate
load in area.
 Granite Falls 115/69 kV Transformer Replacement (Fall 2015): Sized 63 MVA (age)
 Fort Randall Substation Upgrade (Spring 2015 – End 2016):
Replacement of limiting breakers, jumpers and buswork. Dedicated transformer
breakers will be installed. (Upgrades driven by age, condition of equipment,
thermal and short circuit concerns at Fort Randall).
Review of the 2014 Integrated System
Evaluation and Plan
 Eastern South Dakota
• Planned Facility Additions
 VT Hanlon 230 kV Substation Rebuild (Fall 2016): Reliability and operating concerns have been
identified with the existing layout of the substation. There are also deteriorating structures that need to
be replaced due to age. For these reasons, upgrades were identified which will include both the existing
230 kV and 69 kV portions of the substation. Also have addition of a 230/115 kV transformer and
buswork for future deliveries including a VT Hanlon-Virgil Fodness 115 kV line.
•
Due to High Voltage concerns under light load conditions, a 25 MVar reactor on the tertiary of
the new 230/115 kV transformer will be included
 Grand Island 345/230 kV KU1A Transformer Replacement (2016): Scheduled to be replaced in
kind due to age (250 MVA).
 Replacement of Spencer 161/69 kV Transformers (2017 or later): Sizing study completed
recommending the replacement of KY1A and KY1B with a single 150 MVA transformer (with LTC).
The voltage regulating transformer will be removed, and dedicated transformer breakers and a 161 kV
sectionalizing breaker will be added.
•
A 25 MVar capacitor on the 161 kV bus will be installed when the transformers are replaced.
Review of the 2014 Integrated System
Evaluation and Plan
 Eastern South Dakota
• Planned Facility Additions
 2nd Groton-Ordway 115 kV Line and Groton 115 kV South Substation (2017-18): Mitigates low
voltages at Ordway following loss of Ordway-Groton 115 kV. Due to space limitations and congestion
issues related to performing maintenance at the existing substation, a new Groton South substation will
be built to accommodate the reconfiguration requirements identified to mitigate all post contingent
undervoltages observed in planning studies.
 Sioux City 345/230 kV KU1A and KU1B Transformer Replacement (2017): Both KU1A and
KU1B are scheduled for replacement due to age. A sizing study will be completed to determine if the
existing size is adequate to meet future needs.
 Roberts County 115 kV Substation (November 2018): New substation planned on WAPA’s SummitForman 115 kV line for a new delivery to serve load.
• Proposed Facility Additions
 Grand Prairie 345 kV Substation (End 2015): New substation located approximately half way along
the Ft. Thompson-Grand Island 345 kV line. Substation is for the interconnection of the proposed 400
MW Grand Prairie wind farm. Line reactors are required at the new substation
(50 MVar on the Ft. Thompson 345 kV line and 30 MVar on the
Grand Island 345 kV line)
Review of the 2014 Integrated System
Evaluation and Plan
 Eastern South Dakota
• Proposed Facility Additions
 Lower Brule 230 kV Substation and Lower Brule-Witten 230 kV line (2018 or later): TransCanada
is proposing construction of a new pipeline that will cross the IS in eastern Montana and western South
Dakota (Keystone XL). With addition of this new load, post-contingent voltage collapse could occur in
the Big Bend, Mission, and Fort Randall areas, and that a new source into the area was needed. The
Lower Brule-Witten 230 kV line will mitigate this issue and when this project is completed is
dependent upon timeline of Keystone XL proceeding.
 Gregory Keystone XL (PS21) 115 kV (2018 or later): Construct/extend 115 kV yard and add 2x10
MVar capacitors at Gregory needed for the Keystone XL project.
Review of the 2014 Integrated System
Evaluation and Plan
Questions?
Bakken Update
Bakken Update
Presented By:
Matthew Stoltz (BEPC)
Bakken Update
 2014 (Bakken)
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Logan-Minot SW 115kV Reconductor Complete
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Logan Cap Banks In Service, 2 x 15MVAR
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Obtaining 7 x 15MVAR Mobile Capacitor Banks
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2 Presently Being Commissioned, Remainder By 2/2015
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Consider UVLS At Selected Locations
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Lonesome Creek #2 and #3 (45MW Each)
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#2 First Fire 12/6/14, #3 This Week
Timber Creek 230/115 Sub on Williston-CCR 230kV Line
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In Service 1/2015
Bakken Update
 2015 (Bakken)
• Judson 345/230 kV substation
• Antelope Valley-Charlie Creek 345 kV
• Charlie Creek-Judson 345 kV
• Judson-Williston 230 kV
Bakken Update
 2016 (Bakken)
• Roundup-Kummer Ridge-Patent Gate 345 kV
• Roundup Substation 345/115 kV, Kummer Ridge Substation 345/115 kV,
Patent Gate Substation 345/115 kV
 2017 (Bakken)
• Tande 345/230 kV Substation (w/Tande 345/230 kV Transformer)
• Tande-Neset 230 kV
• Judson-Tande 345 kV
Bakken Update
Planned 2015:
AVS-CCR 345 kV
CCR-Judson 345 kV
Proposed 2016:
Roundup-Kummer RidgePatent Gate 345 kV
Planned 2017:
Judson-Tande 345 kV
Bakken Update
Questions?
Stakeholder Input
Open Discussion
SPP Update Related to Planning
SPP Update
Planning
Gayle Nansel (WAPA)
Next Meeting Date and Closing
Remarks
 Next Stakeholder Meeting: Spring-April/May 2015
 Today’s Presentation Posted:
https://www.oasis.oati.com/WAPA/index.html
 Questions Contact:
Gayle Nansel (Transmission System Planning Manager)
nansel@wapa.gov
406-255-2830
Josie Daggett
daggett@wapa.gov
406-255-2836