MVA - MISO

Transcription

MVA - MISO

Candidate MVP
Reliability Analysis
CMVP TSTF
June 17th, 2011
Steady State Analysis
2
Reliability Analysis Progress Summary
• Reliability Justification of “Northern Path” already
presented
–
–
–
–
–
Ellendale to Big Stone
Big Stone to Brookings
Brookings to Twin Cities
North LaCrosse to Cardinal
Pleasant Prairie to Zion
• Additional Reliability Justification of remaining West
Region and some central region MVPs being
presented today
3
Topics
• Steady State Justification Analysis of MVPs:
– Iowa MVPs
– Dubuque to Cardinal
– Oak Grove to Fargo
– Ottumwa to Thomas Hill plus Adair to Palmyra
– Palmyra to Pawnee
4
MVP Justification Analysis
MVPs in MTEP11
Central
DEM Brookston to Greentown 765
Fargo-Oak Grove 345 kV Line
Kansas 2nd. Transformer
Kansas to Sugar Creek
Meredosia to Ipava
Meredosia to Pawnee
Mt. Zion to Kansas
New Pawnee to Pana - 345 kV Line
Pana to Mt. Zion
Quincy-Meredosia 345 kV Line
Rising to Sidney 345 kV line
Thomas Hill - Adair - Ottumwa 345
West Adair-Palmyra Tap 345 kV Line
East
Reynolds to Burr Oak to Hiple 345 kV
West
Big Stone South to Brookings
Brookings, SD - SE Twin Cities 345 kV
Dubuque Co - Spring Green 345 kV project
Ellendale to Big Stone South
Lakefield Jct to Mitchell County 345 kV
N LaCrosse-N Madison-Cardinal 345-kV
Webster - Hazleton 345 kV line
Pleasant Prairie-Zion Energy Center 345 kV line
Sheldon - Webster 345 kV line
Grand Total
Estimated Cost
$1,412,875,000
$171,875,000
$146,000,000
$9,000,000
$71,000,000
$80,000,000
$130,000,000
$174,000,000
$81,000,000
$48,000,000
$176,000,000
$31,000,000
$195,000,000
$100,000,000
$150,000,000
$150,000,000
$2,883,192,200
$195,000,000
$735,400,000
$304,187,200
$320,000,000
$590,540,000
$357,600,000
$182,725,000
$25,000,000
$172,740,000
$4,446,067,200
Red Highlights: Reliability
Steady State Justification
Analysis already presented
– ~37% of Total Cost
Blue Highlights: Reliability
Steady State Justification
Analysis being presented
today
– ~47% of Total Cost
Iowa MVPs
6
Constraint Analyses
• Constraints shown based on:
– Contingency analysis on 2021 cases with and without
proposals
– Transfer analyses starting at 2021 levels and increasing
until limits found
– Transfer sources are all incremental wind zones
– Transfer sinks are non-wind merit order
– RPS milestone wind levels:
•
•
•
•
•
2022 ~ 454 MW
2023 ~ 909 MW
2024 ~ 1363 MW
2025 ~ 1818 MW
2026 ~ 2272 MW
7
Iowa Constraints
Incremental Wind
Zone (2021)
•Red HighlightsConstraints in CMVP
Study 2021 Shoulder
pre-IA CMVP Case
•Yellow HighlightsConstraints in Transfer
Study (Beyond 2021
Wind Levels)
•2022 ~ 454 MW
•2023 ~ 909 MW
•2024 ~ 1363 MW
•2025 ~ 1818 MW
•2026 ~ 2272 MW
8
CMVP Routes
Incremental
Wind Zone
9
CMVP Impact on Constraints
Constraint doesn’t appear
up to 5,000 MW Transfer
200 MW Reduction in
Transfer Capability
Worst Loading
Reduction ~20%
10
Proposed CMVP Effects
• Effectively mitigates Fox Lake-Rutland-Winnebago
constraint (FCITC limit at ~1,300 MW doesn’t appear
post project for upto 5,000 MW of RPS wind transfer)
• Mitigates Emery-Floyd-Bremer-Blackhawk constraint
– Though loading reduction on path is less than 20%
• Doesn’t mitigate Lime Creek-Emery constraint
• Reduces transfer capability on Mitchell CountyHazelton 345 kV path (FCITC limit reduced by 200
MW for RPS wind transfer)
11
BES Cat B Overloads
BES Constraints
Proposed Proposed CMVP
Proposed
Proposed
No Iowa
# of
CMVP Case
CMVP
No Iowa Case
CMVP Case
Case Max
Rating
Outstanding
Loading
Case
# of Conts
Maximum
Loading
(MVA)
Reduction Conts Causing
Mitigated
Causing Ovld
Loading (%)
(%)
Ovld
(%)
?
Lime Creek to Emery 161 kV
200.0
5
125.3
NO
123.4
-1.9
5
Boone Junction to Fort Dodge 161 kV
147.0
1
106.9
YES
< 80
< -26.9
0
Blackhawk to Union Tap 161 kV
181.0
1
103.7
YES
81.1
-22.6
0
Hayward 161 kV Bus Tie
167.0
2
101.1
YES
< 80
< -21.1
0
Floyd to Bremer 161 kV
193.0
5
100.5
YES
85.8
-14.7
0
Adams 345/161 kV Transformer
263.2
1
100.3
YES
< 80
< -20.3
0
Red Cedar to Crystal Lake 161 kV
223.1
1
98.9
YES
95.0
-3.9
0
Twin Church to Sioux City 230 kV
351.0
1
96.2
YES
90.8
-5.4
0
Emergy to Floyd 161 kV
240.0
1
95.0
YES
82.8
-12.2
0
Grand Junction to Drager 161 kV Section
167.0
334
128.7
NO
124.8
-3.9
312
Winnebago to Freeborn 161 kV
167.0
3
108.3
NO
108.3
0.0
3
12
BES Cat C Overloads
BES Constraints
Boone Junction to Fort Dodge 161 kV
Ottumwa to Montezuma 345 kV
Hayward to Austin 161 kV
Wilmarth 345/115 kV Transformer
Rocky Run 345/161 kV Transformer
Bremer to Blackhawk 161 kV
Sub 1209 to 1231 161 kV
Bunge to Hastings 161 kV
Grand Junction to Drager 161 kV Section
Winnebago to Freeborn 161 kV
Manawa to Indian Creek 161 kV
Proposed
Proposed
Proposed
No Iowa
Proposed
CMVP
No Iowa Case
CMVP
CMVP Case
Rating
Case Max
CMVP Case
# of
# of Conts
Case
Loading
(MVA)
Loading
Maximum
Outstanding
Causing Ovld
Mitigated
Reduction
(%)
Loading (%)
Conts Causing
?
(%)
Ovld
200.0
147.0
478.0
279.0
240.0
193.0
448.0
223.1
192.0
167.0
193.0
263.2
217.0
199.0
167.0
167.0
335.0
7
4
1
3
7
9
1
1
1
3
1
3
1
1
513
4
1
125.3
117.0
106.2
105.4
104.9
104.1
99.6
97.0
96.0
95.6
95.4
95.4
95.4
95.3
128.1
108.3
98.2
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
123.4
84.6
94.4
< 80
85.3
84.2
80.7
93.8
94.6
< 80
80.0
< 80
92.9
91.8
124.2
108.3
103.8
-1.9
-32.5
-11.8
< -25.4
-19.6
-19.8
-18.9
-3.1
-1.4
< -15.6
-15.4
< -15.4
-2.5
-3.5
-3.9
0.0
5.6
7
0
0
0
0
0
0
0
0
0
0
0
0
0
479
4
1
13
Alternate Route
Incremental
Wind Zone
14
Alternate Route
• Lakefield to Winnebago 345 kV
– Winnebago 345/161 kV transformer
• Winnebago to Webster 345 kV
• Tie Winnebago to Webster at new station and extend to
Lime Creek 345 kV
– Lime Creek 345/161 kV transformer
• Lime Creek to Emery 345 kV
– Emery 345/161 kV transformer
• Emery to Floyd to Bremer to Blackhawk 345 kV
– Blackhawk 345/161 kV transformer
• Blackhawk to Hazelton 345 kV
• Connect Sheldon to Winnebago-Webster ROW near Burt
15
Wind Zone Adjustment
• IA-F originally in RGOS closer to Buena Vista 161 kV
area
• Two zones (IA-B and IA-F) had been lumped at Sheldon
345 kV pre-MVP (533 MW) because RGOS Line from
Sheldon to Lehigh not part of CMVP portfolio
• Reasonable to assume IA-F (262 MW) on 161 kV preMVP
• With MVP, connect to new 345 kV MVP sub in area 16
Constraints
Incremental
Wind Zone
17
Impact of Alternative on Constraints
As with proposed CMVPs
Constraint doesn’t appear upto
5,000 MW Transfer
Overload Eliminated
by reducing loading
by over 60%
Constraint doesn’t
appear upto 8,000
MW Transfer
Worst Loading
Reduction >45%
Overload Eliminated
by reducing loading
by over 30%
18
Alternative Impact
• Continues to effectively mitigate Fox Lake-RutlandWinnebago constraint (FCITC limit at ~1,300 MW doesn’t
appear post project for up to 5,000 MW of RPS wind
transfer). Step Down Transformation at Winnebago provides
additional loading reduction.
• Mitigates Lime Creek-Emery-Floyd-Bremer-Blackhawk
constraint
– Offloads existing transmission by at least over 45% on all sections
• Attributed to transformers at Lime Creek and Emery which help pick
up wind of about 225 MW and 130 MW respectively onto the 345 kV
line in base shoulder scenario acting as step up transformers.
• Does not negatively impact transfer limit on Mitchell CountyHazelton 345 kV path
– Significant increase in transfer capability of over 4,000 MW
• No Iowa CMVP FCITC limit on Mitchell County line at about 4,200
MW increases to over 8,500 with limit on Hazelton to Arnold
19
BES Cat B Constraints Mitigated by
Alternate Route
BES Constraint
Rating
(MVA)
# of
Contingencies
No Iowa Case Alternate
Loading
Max Loading Maximum
Reduction (%)
(%)
Loading (%)
200.0
3
121.1
90.8
30.3
Buena Vista to Sac 161 kV
206.0
1
109.4
< 80
>29.4
Hayes to Pomeroy 161 kV
335.0
14
108.2
80.1
28.1
Buena Vista to Wisdom 161 kV
223.0
3
106.3
< 80
> 26.3
Blackhawk to Union Tap 161 kV
181.0
1
105.9
< 80
> 25.9
193.0
5
101.8
87.4
14.3
Fort Dodge to Tatley 161 kV
223.0
1
101.4
< 80
> 21.4
263.3
5
100.1
< 80
>20.1
223.1
1
98.9
94.0
4.9
167.0
2
98.6
< 80
>18.6
Webster to Hayes 161 kV
210.0
1
97.1
< 80
>17.1
Twin Church to Sioux City 230 kV
351.0
1
96.9
91.7
5.2
240.0
5
96.0
84.3
11.7
Pocahontas to Pomeroy 161 kV
335.0
2
95.9
< 80
>15.9
193.0
1
95.4
51.5
43.9
20
BES Cat C Constraints Mitigated by
Alternate Route
BES Constraint
Rating
(MVA)
# of
Contingencies
No Iowa Case
Max Loading
(%)
Alternate
Maximum
Loading (%)
Loading
Reduction (%)
200.0
7
121.1
61.8
59.3
Buena Vista to Sac 161 kV
206.0
1
108.1
< 80
> 28.1
Hayes to Pomeroy 161 kV
335.0
13
108.1
< 80
> 28.1
240.0
8
106.1
57.3
48.8
Buena Vista to Wisdom 161 kV
223.0
2
106.1
< 80
> 26.1
Hayward to Austin 161 kV
279.0
3
105.4
< 80
> 25.4
193.0
9
105.1
58.5
46.6
Raun to Tekamah 161 kV
217.0
2
104.6
93.5
11.0
Webster to Hayes 161 kV
210.0
1
97.1
< 80
> 17.1
223.1
1
97.0
92.6
4.3
193.0
1
96.6
50.5
46.1
263.3
7
96.4
< 80
> 16.4
Wilmarth 345/115 kV Transformer
448.0
1
96.3
92.4
3.9
192.0
1
96.0
94.8
1.2
Pocahontas to Pomeroy 161 kV
335.0
1
95.9
< 80
> 15.9
167.0
3
95.6
< 80
> 15.6
Bunge to Hastings 161 kV
199.0
1
95.3
92.9
2.4
Sub 1209 to 1231 161 kV
217.0
1
95.0
93.6
1.4
21
Non-BES Cat B Constraints
Mitigated by Alternate Route
Rating
(MVA)
Non-BES Constraints
680339 T TMP 8
69.0 680340 T BRC
No Iowa Case Alternate
Max Loading Maximum
(%)
Loading (%)
Loading
Reduction
(%)
69.0
1
17.0
111.2
< 80
>31.2
631174 GLENWRTH5
161 680542 GLENWTH8
69.0
1
100.0
109.0
< 80
>29.0
630097 WBGOJ S8
69.0 631045 WNBAGOS5
161
1
30.0
108.0
< 80
>28.0
619015 GRE-REDWOOD869.0 619017 GRE-SHRDNTP869.0
1
31.6
107.8
93.9
13.9
630128 HAYWD#18
69.0 680275 T GLEN
69.0
1
48.0
105.8
< 80
>25.8
605089 ARLNGTN8
69.0 605090 GRENISL8
69.0
1
34.3
103.6
81.6
22.0
617238 GRE-PENELOP869.0 617239 GRE-PENELTP869.0
1
66.3
99.3
89.8
9.4
630234 DECORAH8
69.0 630245 MADISNT8
69.0
1
36.0
98.6
87.8
10.8
630023 TRIBOJI8
69.0 630474 WAHPETN8
69.0
1
69.0
98.1
91.4
6.6
630120 ALDEN J8
69.0 630121 ALEAWST8
69.0
1
40.0
97.5
< 80
>17.5
630197 LMCK W 8
69.0 631047 LIME CK5
161
1
74.8
97.3
< 80
>17.3
605089 ARLNGTN8
69.0 618723 GRE-JSNLDTP869.0
1
34.3
96.1
< 80
>16.1
630027 TRAER
69.0 656299 TRAERTAP8
69.0
1
41.0
95.5
< 80
>15.5
69.0 630090 MADLIAJ8
69.0
1
40.0
95.4
< 80
>15.4
8
605063 MADELVL8
22
Non-BES Cat C Constraints
Mitigated by Alternate Route
Non-BES Constraints
Rating
(MVA)
No Iowa Case Max
Loading (%)
MISO-1
MISO-1
Maximum
Loading
Loading (%) Reduction (%)
605090 GRENISL8
69.0 605275 CARVRCO8
69.0
1
47.0
136.6
< 80
>56.6
605089 ARLNGTN8
69.0 618723 GRE-JSNLDTP869.0
1
34.3
127.2
< 80
>47.2
630464 KLEMME8
69.0 630821 HANCOCK8
69.0
1
36.0
122.2
< 80
>42.2
680339 T TMP 8
69.0 680340 T BRC
69.0
1
17.0
109.9
85.4
24.5
630139 ADAMS
8
69.0 680379 MCNEIL_W
69.0
1
60.0
106.4
89.8
16.6
630467 NBELMDT8
69.0 630469 BELMNDJ8
69.0
1
40.0
102.3
< 80
>22.3
617238 GRE-PENELOP869.0 617239 GRE-PENELTP869.0
1
66.3
101.7
92.1
9.6
605045 MINNVAL8
69.0 605046 YELWMED8
69.0
1
34.3
99.6
95.8
3.8
605166 EAGLELK8
69.0 617243 GRE-EAGLELK869.0
1
72.0
97.8
94.2
3.5
630197 LMCK W 8
69.0 631047 LIME CK5
161
1
74.8
97.3
< 80
>17.3
630234 DECORAH8
69.0 630245 MADISNT8
69.0
1
36.0
97.2
87.8
9.4
617220 GRE-PNLPNTP869.0 617238 GRE-PENELOP869.0
1
66.3
97.0
87.4
9.7
B$0643 CS KY1A
1.00 652568 CRESTN 8
69.0
1
70.0
96.8
95.0
1.8
605063 MADELVL8
69.0 630090 MADLIAJ8
69.0
1
40.0
96.3
80.6
15.8
630120 ALDEN J8
69.0 630121 ALEAWST8
69.0
1
40.0
96.0
< 80
>16.0
23
Iowa Summary
• Alternate Route is superior to proposed CMVPs
– Routed through Lime Creek wind heavy area
constraints aggravated by through transfers
• Alternate Route helps reduce loading on existing
transmission path by about half
– Relieves congestion on Mitchell-Hazelton 345 kV
path increasing wind transfer capability through Iowa
by over 4,000 MW
– Circumvents wind heavy northern Iowa regions with
reliable 345 kV looped system with various
transformation stations which would help facilitate
future wind connections
24
East of Iowa
25
Overview of West MVPs
Northern MVP Path
Southern MVP Path
26
East of Iowa – Wisconsin and Illinois
27
East of Iowa – Wisconsin and Illinois
• Through transfers enabled by the southern route
– New 345 kV injection at Hazelton
• Additional Wind Zone in Southwest WI at Salem 345 kV
– 370 MW
• Two existing 345 kV circuits terminating into ComEd Quad City
345 kV station
– Large overloads on existing bottleneck (only W-E 345 kV path) on
Quad-Nelson-Electric Junction 345 kV line
• Dubuque – Cardinal helps offload the northern feed into Quad by
redirecting flow north
• Oak Grove – Fargo helps offload the western feed into Quad by
redirecting flow south
• Together the two projects help enable over 1,100 MW of MISO Wind
Dubuque – Cardinal CMVP Mitigated Map
29
BES Transmission Issues Mitigated by
Dubuque – Cardinal CMVP – NERC Cat B
2021 Wind Levels
200 MVA Loading
Reduction
Maximum
Loading %
Minimum
Loading %
# of
Contingencies
201
99.6
95.1
2
1479
99.4
99.4
4
Ottumwa to Montezuma 345 kV
478
98.7
96.2
4
Princeton Tap to LTV (Tap on Hennepin-Kewanee) 138 kV
143
98.5
98.5
1
Red Cedar to Crystal Cave 161 kV
223
98.1
98.1
1
1528
96.4
96.4
2
208
95.6
95.6
1
176
95.6
95.6
1
BES Element
Rating
Wabaco to Rochester 161 kV
Cordova to Nelson 345 kV
Quad City to Nelson 345 kV
Oak Grove to Galesburg 161 kV
272362 H445 ;3B
138 272516 STEWA; B
138 1
202 MVA Loading
Reduction
Table includes constraints derived from only
high ComEd NSI
30
Non-BES Transmission Issues Mitigated by
2021 Wind Levels
Non-BES Element
Rating
698351 PET 69
69.0 699808 PETENWEL
698033 BRN 69
69.0 699902 JEN 69
138 1
69.0 1
Maximum Minimum
# of
Loading % Loading % Contingencies
41
98.9
96.4
4
69
98.1
98.1
2
high ComEd NSI
31
Dubuque – Cardinal CMVP – NERC Cat C
2021 Wind Levels
176MVA Loading
Reduction
BES Element
Rating
Maximum Minimum
# of
Palmyra 345/161 kV Transformer
370
128.9
128.9
1
Byron to Wempletown 345 kV
1726
125.8
125.8
1
Dixon to Cherry Valley 138 kV section
182
119.9
119.9
1
1479
102.5
99.4
3
Galesburg 161/138 kV Transformer
101
99.6
99.6
1
Red Cedar to Crystal Cave 161 kV
223
96.8
96.8
1
1528
96.4
96.1
4
208
95.9
95.9
1
192
95.3
95.3
1
Dundee 161/115 kV Transformer
75
95.0
95.0
1
high ComEd NSI
32
2021 Wind Levels
Non-BES Element
Rating
Maximum Minimum
# of
630290 DBQ 8TH8
69.0 630299 EDUBQUE8
69.0 1
69
103.3
103.3
1
698351 PET 69
69.0 699808 PETENWEL
138 1
41
98.4
98.4
1
high ComEd NSI
33
Updates to PJM Areas in Model
• Based upon stakeholder feedback regarding the Com Ed
interchange and a review of historical line data,
particularly tie lines between Com Ed and AEP, led to
PJM making adjustments to the 2021 generation
dispatch to more accurately reflect the interchange
during typical shoulder and summer peak hours.
• PJM provided an update that placed the line loadings
more consistent with historical values for the shoulder
peak model, and this update was applied to the MISO
models used for this round of analysis.
• The same adjustments are also expected to be made for
the summer peak model.
34
Updates to PJM Areas in Model
• For the shoulder model, the historic data shows that
the combined loading on the three direct tie lines
between Com Ed and AEP was 2,000 MW or
greater for over half of the year in 2009 and 2010.
• In the model prior to the PJM update, the combined
loading was 1,134 MW (about quarter hrs. of the
year).
• After reviewing the historical data, PJM increased
the combined loading value to around 2,400 MW.
• Reasonable to study two Shoulder conditionsrepresenting low and high ComEd exports
35
2009 Com Ed to AEP Count of Total Hourly
Average MVA Across Direct Tie Lines
6000
5165
5000
4000
3000
Series1
2378
2000
1000
622
501
94
0
3000 and greater
2000-2999
1000-1999
0-999
less than 0
36
2010 Com Ed to AEP Count of Total Hourly
Average MVA Across Direct Tie Lines
6000
4835
5000
4000
3000
Series1
1996
2000
1000
827
757
345
0
3000 and greater
2000-2999
1000-1999
0-999
less than 0
37
2026 Wind Levels
Branch
Wabaco to Alma 161 kV
Kewanee to Galesburg 138 kV
North LaCrosse to Marshland 161 kV
Adams to Beaver Creek 161 kV
Albany to Rock Falls 138 kV section
Red Rock to Glenmont 115 kV
Werner West to Rocky Run 345 kV
Viele to Denmark 161 kV
Danvers to Washington Street 138 kV section
Wilton to Pontiac 345 kV section
Glenmont to River Falls 115 kV
North Monroe to Albany 138 kV
Marshland to Alma 161 kV
Rating
(MVA)
Maximum Post
Minimum Post
Contingent
Number of
Contingent Loading
Loading
Contingencies
(% of Rating)
(% of Rating)
182
105.3
105.3
2
223
104.1
96.3
2
143
102.7
96.6
9
162
100.6
100.6
1
240
99.5
99.5
1
208
99.3
99.3
1
182
98.1
97.7
6
196
97.7
97.7
1
829
97.2
97.2
2
370
97.0
97.0
2
167
96.9
96.9
2
132
96.2
96.2
1
1280
96.1
96.1
2
194
96.0
96.0
1
146
95.3
95.3
2
279
95.1
95.1
1
Table includes constraints derived from both
low and high ComEd NSI
38
2026 Wind Levels
Rating
(MVA)
Maximum Post
Contingent Loading
(% of Rating)
Minimum Post
Contingent
Loading
(% of Rating)
Number of
Contingencies
161 1
34
102.8
102.8
1
Branch
630282 TURK RV8
69.0 631060 TRK RIV5
698007 DAR 69
69.0 698035 GTT 69
69.0 1
87
99.3
99.3
2
605351 WISOTBC8
69.0 605523 LFY TAP8
69.0 1
72
97.4
97.4
2
605292 MONROCO8
69.0 680146 SPARTA
69.0 1
72
96.8
96.8
4
698321 A07 69
69.0 698322 MCK 69
69.0 1
42
96.3
95.1
3
605351 WISOTBC8
69.0 680482 DPC TAP8
69.0 1
72
95.2
95.2
2
605353 CADOTT 8
69.0 680482 DPC TAP8
69.0 1
72
95.2
95.2
2
39
2026 Wind Levels
Branch
Byron to Wempletown 345 kV
Dundee to Coggon 115 kV
Albany to Rock Falls 138 kV section
Kewanee to Galesburg 138 kV
Genoa to Harmony 161 kV
Turkey River to Stoneman 161 kV
Sigel to Arpin 138 kV
Stoneman to Nelson Dewey 161 kV
Dixon 138 kV Bus Tie
Viele to Denmark 161 kV
Lake Side to Osage 138 kV
Rock Creek to Albany 161 kV section
Red Rock 345/115 kV Transformer
Hydro Lane 161/115 kV Transformer
St. Croix Falls to Polar Lake 161 kV
1726
Maximum Post
Contingent
Loading
(% of Rating)
132.9
Minimum Post
Contingent
Loading
(% of Rating)
132.9
370
128.9
128.9
1
182
114.6
114.6
1
75
107.3
107.3
1
182
104.9
97.8
7
143
103.2
95
13
Rating
(MVA)
Number of
Contingencies
1
208
103
103
1
223
102.8
95.9
2
200
101.5
101.5
1
339
98.4
98.4
1
221
97.9
97.9
1
332
97.2
97.2
1
167
96.9
96.8
2
141
96.5
96.5
1
223
96.4
96.4
1
448
95.2
95.2
1
187
95.2
95.2
1
400
95.2
95.2
1
40
2026 Wind Levels
Branch
Rating
(MVA)
Maximum Post
Contingent Loading
(% of Rating)
Minimum Post
Number of
Contingent Loading
Contingencies
(% of Rating)
605292 MONROCO8
69.0 680146 SPARTA
69.0 1
72
137.9
133.5
2
630290 DBQ 8TH8
69.0 630299 EDUBQUE8
69.0 1
69
107.7
107.7
1
630282 TURK RV8
69.0 631060 TRK RIV5
161 1
34
104.9
95.4
2
630244 BIGSPRT8
69.0 630269 ELKADER8
69.0 1
45
100.3
100.3
1
698007 DAR 69
69.0 698035 GTT 69
69.0 1
87
99.5
98
2
605351 WISOTBC8
69.0 605523 LFY TAP8
69.0 1
72
98.1
95.5
2
630240 MONONA_8
69.0 680477 FARMBURG
69.0 1
48
96.1
96.1
1
630271 GUTNBRG8
69.0 630282 TURK RV8
69.0 1
36
95.9
95.9
1
605351 WISOTBC8
69.0 680482 DPC TAP8
69.0 1
72
95.8
95.8
1
605353 CADOTT 8
69.0 680482 DPC TAP8
69.0 1
72
95.8
95.8
1
630575 KALONA T
69.0 636402 HILLS
8
69.0 1
72
95.2
95.2
1
630024 DUNDEE 8
69.0 630304 MASONVL8
69.0 1
72
95
95
1
41
Wind Zone Adjustment
• WI-B originally in RGOS Line from Nelson Dewey to
Paddock closer Hillman 161 kV station
• Since RGOS Line Nelson Dewey to Paddock not part of
CMVP portfolio, wind zone was moved to Salem 345 kV
station
• Reasonable to study WI-B (210/333 MW-2021/2026
levels respectively) on Hillman 161 kV pre-MVP
• With MVP, connect to Salem 345 kV MVP sub in area 42
New Constraints with Wind Zone Adjustment
• Hillman to Darlington to North Monroe 161 kV path
overload in base case
• Hillman to Nelson Dewey 161 kV path overload for
single contingency
43
New Transmission Issues Resulting From
Dubuque – Cardinal CMVP – Cat B
Element
Spring Green 138/69 kV Xfmr
698668 WMD 69 69.0 698674 WTNM 69
Rating Maximum Minimum
# of
(MVA) Loading (%) Loading (%) Contingencies
96.0
110
95.6
6
69.0 1 83.0
100.7
96.7
4
44
Oak Grove-Fargo Constraints Mitigated Map
BES Transmission Issues Mitigated by Oak
Grove to Fargo CMVP – NERC Cat B
2021 Wind Levels
BES Element
Rating
Maximum Minimum
# of
Glidden 138 kV Bus Tie
214
100.2
100.2
1
Novelty to Adair 161 kV
167
99.4
99.4
2
Cherry Valley 345/138 kV Transformer
465
97.5
97.5
1
Belvidere to Crystal Lake 138 kV section
428
96.7
96.7
1
Pleasant Prairie to Zion 345 kV
1201
96.5
96.5
1
Prospect 138 kV Bus Tie
465
95.0
95.0
1
high ComEd NSI
Grove to Fargo CMVP – NERC Cat C
2021 Wind Levels
BES Element
Rating
Maximum Minimum
# of
143
98.6
98.6
4
Cherry Valley to Glidden 138 kV section
602
97.9
97.9
1
Darlington to North Monroe 138 kV
146
97.3
97.3
1
Auburn to Butternut
211
97.2
97.2
1
North Brook 345/138 kV Transformer
442
95.0
95.0
1
high ComEd NSI
Grove to Fargo CMVP – NERC Cat B
2026 Wind Levels
Rating
(MVA)
Maximum Post
Contingent Loading
(% of Rating)
Minimum Post
Contingent Loading
(% of Rating)
Number of
Contingencies
1479
108.0
107.9
4
143
104.6
102.1
2
1528
104.5
104.5
2
Branch
272365 H440 ;RT
138 272516 STEWA; B
138 1
264
100.4
100.4
6
272362 H445 ;3B
138 272516 STEWA; B
138 1
176
99.9
99.9
1
Byron to Cherry Valley 345 kV
1441
98.7
98.7
1
Cherry Valley 138 kV Bus Tie
465
96.0
96.0
1
Cypress to Arcadian 345 kV
586
95.5
95.4
3
Arpin 345/138 kV Transformer
381
95.2
95.2
1
Grove to Fargo CMVP – NERC Cat C
2026 Wind Levels
Branch
Belvidere to Crystal Lake 138 kV section
272365 H440 ;RT 138 272516 STEWA; B 138 1
271096 BHAWK;BT 138 271192 CHERR; B 138 1
Byron to Cherry Valley 345 kV
PH117 345/138 kV Transformer
Pleasant Prairie to Zion 345 kV
North Brook 345/138 kV Transformer
North Brook 138 kV Bus Tie
Cherry Valley to Alpine 138 kV
Granville 345/138 kV Transformer
Cherry Valley to Glidden 138 kV section
Werner West to Rocky Run 345 kV
Dresden 138 kV Bus Tie
Galesburg 161/138 kV Transformer
Rating
(MVA)
Maximum Post
Contingent Loading
(% of Rating)
Minimum Post
Contingent Loading
(% of Rating)
Number of
Contingencies
370
1479
143
1528
428
264
386
1441
182
465
1667
442
442
602
478
338
829
480
101
137.8
110.6
109.1
104.5
100.0
99.3
99.2
97.8
97.2
96.6
96.4
96.1
96.0
95.8
95.6
95.4
95.4
95.1
95.1
137.8
105.8
109.1
103.0
100.0
95.3
99.2
97.7
97.2
96.6
96.4
96.1
96.0
95.8
95.6
95.4
95.4
95.1
95.1
1
3
4
5
1
6
1
2
1
1
1
1
1
1
1
1
1
1
1
New Transmission Issues Resulting
From Oak Grove to Fargo CMVP
NERC Category C
BES Element
636616 SB 56 5
161 636675 SB 85 5
161 1
Rating
Maximum
Loading %
Minimum
Loading %
# of
Contingencies
223
109.9
109.9
1
Ottumwa-Adair-Palmyra-Thomas Hill Constraints
Mitigated Map
Ottumwa – Adair – Palmyra – Thomas Hill CMVP
• Project adds 345kV line between MEC’s Ottumwa Substation south
to Ameren’s Adair Substation, east to Palmyra and further south
from Adair to Thomas Hill.
• This path provides an outlet for wind generation connected into
Adair (500MW max, 450MW dispatched in shoulder case)
• Without this path, the connected wind would overload the 161 kV
line from Adair to Novelty in the base case, and during other
contingencies overloads the 161 kV lines to the north and south, as
well as some nearby transformers
• Any 161 kV bus outages could result in the wind generation at Adair
being disconnected from the transmission system
• At 2026 wind levels, the overloads increase in severity along the
main outlet from Adair, along with constraints beginning to show up
in western Missouri along a parallel path of Ottumwa to Adair
52
Ottumwa to Adair to Palmyra to Thomas Hill
CMVP (Shoulder Peak) – NERC Cat B
Element
Novelty to Adair 161 kV Line*
Kewanee South Tap to East Galesburg 138 kV
Rating
167
143
Maximum
Loading %
154.6
98.8
Minimum
# of
Loading % Contingencies
93.9
13149
98.8
1
*Novelty to Adair is a base case overload without the MVP, with the wind connected to the 161kV Bus at Adair
CMVP (Shoulder Peak) – NERC Cat C
Element
Rating
Adair to Apanoose 161kV Line
Thomas Hill to Adair 161kV Line
Sub 18 to Sub 85 161kV Line
Lucas 161/69kV Transformer
Henry 161/69kV Transformer
NOTE: For a 161kV bus fault or any of the three 161 kV
breaker faults at Adair station, the outlet for 450MW of
wind generation is lost without the MVP
223
315
248
96
56
Maximum
Loading %
121.0
101.2
99.3
97.8
95.8
Minimum
# of
121.0
1
101.2
1
99.3
1
97.8
1
81.7
1
CMVP (Shoulder Peak) NERC Cat B and C
Category B
Element
Jeff to Fairfield NW Tap 69 kV Line
Mark to Apanose County 69 kV Line
Wooster to Jefferson 69 kV Line
Rating
48
48
41
Category C
Element
North Centerville to Iowa Steel and Wire 69kV Line
Wooster to Jefferson 69kV Line
Rating
51
41
Maximum Minimum
Loading
Loading
120.6
106.1
118.9
83.7
96.3
96.1
# of
Contingencies
2
7
2
Maximum Minimum
Loading
Loading
101.4
101.4
99.8
99.8
# of
Contingencies
1
1
55
CMVP – Shoulder Peak Model
Category B
Element
None
Rating
Maximum
Loading %
Minimum
Loading %
Category C
Element
Ottumwa to Montezuma 345 kV Line
Maximum Minimum
Loading % Loading %
Rating
370
109.44
109.44
478
106.88
106.88
Note: There is a project that would fix the Ottumwa to Montezuma 345kV Line overload that
would be implemented with the MVP
CMVP (Shoulder Peak) – NERC Cat B
2026 Wind Levels
Element
Viele to Denmark 161kV Line
Wapello to Ottumwa 161kV Line #2
Wapello to Ottumwa 161kV Line #1
167
Maximum
Loading %
100.4
335
99.0
97.0
2
335
95.7
95.7
1
Rating
Minimum
# of
98.1
3
Ottumwa to Adair to Palmyra & to Thomas Hill
2026 Wind Levels
Element
Adair to Apanoose 161kV Line
Thomas Hill to Adair 161kV Line
Sub 702 to Manawa 161kV Line
Ottumwa 345/161kV Transformer
Viele to Denmark 161kV Line
Council Bluffs to Indian Creek 161kV line
Wapello County to Jefferson 161kV Line
Maryville to Clarinda 161kV Line
Rating
223
315
335
400
167
371
223
153
Maximum
Loading %
122
102.1
100.2
98.6
98.1
97.4
97.0
95.5
Minimum
# of
122
1
102.1
1
100.2
1
98.6
1
98.1
1
97.4
1
95.8
2
95.5
1
Non-BES Transmission Issues Mitigated by Ottumwa to
Adair to Palmyra to Thomas Hill CMVP (Shoulder Peak)
NERC Cat B and C
2026 Wind Levels
Category B
Element
Jefferson to Fairfield NW 69kV Line
Mark to Apanoose County 69kV Line
Arlington to Green Isle 69kV Line
Henry County 161/69kV Transformer
Wapello to Eldon 69kV Line
Rating
48
48
41
34.25
56
69
Category C
Element
Venice 138/69kV Transformer
North Centeville to Iowa Steel and Wire 69kV Line
Henry County 161/69kV Transformer
Wapello County to Eldon 69kV Line
Lucas County 161/69kV Transformer
Rating
143
51
41
56
69
96
Maximum Minimum
Loading
Loading
132.5
114.6
125.8
94.9
105.8
103.9
103.2
103.2
99.3
99.3
96.9
96.9
# of
Contingencies
2
48
3
1
1
1
Maximum Minimum
Loading
Loading
103.0
103.0
111.4
111.4
108.0
108.0
100.7
100.7
97.5
97.5
97.1
97.1
# of
Contingencies
1
1
1
1
1
1
59
New Transmission Issues Resulting From Ottumwa to Adair to
Palmyra to Thomas Hill CMVP – Shoulder Peak Model
2026 Wind Levels
Category B
Element
Ottumwa to Montezuma 345kV Line
Jasper 161/69kV Transformer
Rating
478
84
Maximum
Loading %
110.5
106.4
Minimum
Loading %
80.3
106.4
Note: There is a project to fix the Ottumwa to Montezuma 345kV line overload that would be
implemented with the MVP
Category C
Element
Ottumwa to Montezuma 345kV Line
Palmyra 345/161kV Transformer
Dahlberg to Stinson 115kV Line
Grimes to Sycamore 345kV Line
Granger Tap to 100th and 54th 161kV Line
Rating
478
370
98
956
373
Maximum
Loading %
130.7
120
103.6
99.7
99.2
Minimum
Loading %
80.2
83
103.6
82.8
99.2
Note: There is a project that would fix the Ottumwa to Montezuma 345kV Line overload that
would be implemented with the MVP
Palmyra – Meredosia – Pawnee – Ipava
Constraints Mitigated Map
Palmyra – Meredosia – Pawnee + Meredosia –
Ipava CMVP
• This project adds 345kV lines between Ameren’s
Palmyra, Meredosia and Pawnee substations, along with
a line from Meredosia to Ipava. This provides an outlet
for generation from the west by connecting an east –
west path from Adair (MO) to Sugar Creek (IN) across
Illinois, as well as a north – south path with the line into
Ipava
• Without this path, the 138 kV lines will become
overloaded out of Palmyra, as well as the 138 kV lines
parallel to the proposed Meredosia to Ipava 345 line
• When examining this same project at 2026 wind levels,
the existing constraints are further aggravated, along
with an additional overloads on the path the south of
Palmyra
62
Palmyra to Meredosia to Pawnee &
Meredosia to Ipava CMVP (Shoulder Peak)
– NERC Cat B
Element
Novelty to Adair 161 kV Line
Hannibal West to Palmyra 161 kV Line
Fargo 345/138kV Transformer
Kewanee South Street to East Galesburg 138 kV Line
Old Danvers Road to Lilly Tap 138 kV Line
New Holland Tap Point to Kickapoo 138 kV Line
Diamond Star Tap 2 to Old Danvers Road 138 kV Line
Rating
167
370
227
560
143
132
120
132
Maximum
Loading %
119.0
110.2
101.8
101.0
99.0
96.2
96.2
95.9
Minimum
# of
82.7
4
80.1
4
79.9
3
101.0
1
99.0
1
80.0
1
96.2
1
80.2
1
– NERC Cat C
Element
Fargo 345/138kV Transformer
Sub 18 to Sub 85 161kV Line
Havana South to Mason City West 138 kV Line
Rating
560
248
165
Maximum
Loading %
99.4
99.1
95.5
Minimum
# of
88.2
3
99.1
1
81.4
3
Palmyra to Meredosia to Pawnee & Meredosia
to Ipava CMVP – Shoulder Peak Model
Category B
Element
None
Rating
Maximum
Loading %
Minimum
Loading %
Rating
Maximum
Loading %
Minimum
Loading %
Category C
Element
None
– NERC Cat B
2026 Wind Levels
Element
Havana to Mason City 138 kV Line
Fargo to Radnor 138 kV Line
Rating
370
165
233
Maximum
Loading %
117.5
100.8
99.8
Minimum
# of
96.7
6
100.8
1
99.8
1
BES Transmission Issues Mitigated by Palmyra to
Meredosia to Pawnee & Meredosia to Ipava
2026 Wind Levels
Element
Havana South to Mason City West 138 kV Line
Diamond Star Tap 2 to West Washington Street 138
Spalding to Hannibal West 161 kV Line
Spalding to Marion Tap 161 kV Line
Hydro Lane 161kV Transformer
Rating
165
132
227
227
187
Maximum
Loading %
105.9
102.2
100.2
100.1
98.3
Minimum
# of
105.9
3
95.0
25
96.2
2
100.1
1
98.3
1
Non-BES Transmission Issues Mitigated by Palmyra to
Meredosia to Pawnee to Ipava CMVP (Shoulder Peak)
NERC Cat B and C
2026 Wind Levels
Category B
Element
None
Rating
Category C
Element
Venice 138/69 kV Transformer
Wissota Beach to Lafayette tap 69kV Line
Wissota Beach to Cadott Interconection 69kV Line
Cadott to Cadott Interconection 69kV Line
ACEC Brooks to McKenna 69kV Line
Cadott to Boyd 69kV Line
Rating
143
72
72
72
42
72
Maximum Minimum
Loading
Loading
# of
Contingencies
Maximum Minimum
Loading
Loading
103.1
103.1
101.9
95.0
97.8
97.8
97.8
97.8
96.2
96.2
95.3
95.3
# of
Contingencies
1
2
1
1
1
1
68
New Transmission Issues Resulting From Palmyra to
Meredosia to Pawnee to Ipava CMVP – Shoulder Peak Model
2026 Wind Levels
Category B
Element
None
Rating
Maximum
Loading %
Minimum
Loading %
Rating
98
Maximum
Loading %
103.6
Minimum
Loading %
103.6
Category C
Element
Dahlberg to Stinson-Wisconsin 115kV Line
Questions?
• Digaunto Chatterjee ([email protected])
• West Sub Region Engineering Questions
– Adam Solomon ([email protected])
• Central and East Sub Region Engineering
Questions
– Mike Dantzler ([email protected])
70
Appendix
71
Ellendale – Big Stone CMVP Mitigated Map
72
Ellendale – Big Stone CMVP – NERC Cat B
Element
Oakes - Ellendale 230 kV
# of
320.0
106.5
104.7
2
80.0
171.2
102.8
6
Oakes - Forman 230 kV
352.0
95.0
95.0
1
Forman 230/115 Xfmr
112.0
125.6
95.0
3
80.0
137.0
131.6
3
Forman 230 kV Bus Tie
140.0
104.2
104.2
1
Ellendale 230/115 kV Xfmr
150.0
101.0
98.6
3
Heskett 230/115 kV Xfmr
100.0
105.4
105.4
1
Aberdeen - Ellendale 115 kV
Aberdeen Jct - Aberdeen 115 kV
73
Ellendale – Big Stone CMVP – NERC Cat C
Element
Oakes - Ellendale 230 kV
Rating Maximum
Minimum
(MVA) Loading (%) Loading (%)
# of
Contingencies
320.0
106.5
104.5
2
80.0
169.0
103.7
10
352.0
95.0
95.0
1
80.0
134.7
131.0
8
Ellendale 230/115 kV Xfmr
150.0
99.6
99.6
1
Forman 230/115 Xfmr
112.0
96.6
96.6
1
Aberdeen - Ellendale 115 kV
Oakes - Forman 230 kV
Aberdeen Jct - Aberdeen 115 kV
74
Ellendale-Big Stone CMVP
Element
# of
** None **
75
Alternative-Rejected
•
•
•
•
2026 RPS wind zone at Ellendale of 260 MW
2-230 kV lines east and west and 1-115 kV line
Analyses show constraints on Big Stone to Blair to
An alternative to convert 115 kV path from Ellendale
all the way to Huron could alleviate the southern
path constraints but downstream transmission may
also need to be rebuilt to accommodate wind
injection delivered through lower impedance line
• The eastern 230 kV path would need to be rebuilt to
345 kV all the way up to Fergus Falls
• Cost of this alternative higher than 345 kV path to
Big Stone station
76
Big Stone – Brookings CMVP Mitigated Map
77
BES Transmission Issues Mitigated by Big
Stone – Brookings CMVP – NERC Cat B
Element
Rating Maximum
Minimum
# of
Contingencies
Hankinson - Wahpeton 230 kV
320.0
110.8
110.8
1
Big Stone - Highway 12 115 kV
230.1
99.2
99.2
1
92.3
138.5
96.1
2
Johnson - Morris 115 kV
78
BES Transmission Issues Mitigated by Big
Stone – Brookings CMVP – NERC Cat C
Element
Rating Maximum
(MVA) Loading (%)
Minimum
Loading (%)
# of
Contingencies
Big Stone - Blair 230 kV
480.0
126.0
126.0
1
Hankinson - Wahpeton 230 kV
320.0
111.2
95.0
2
92.3
139.5
108.8
6
Big Stone - Highway 12 115 kV
230.1
100.1
100.1
1
Highway 12 - Ortonville 115 kV
230.1
95.5
95.5
1
Watertown 345/230 kV Xfmr
400.0
98.2
98.2
1
Pipestone - Buffalo Ridge 115 kV
158.8
99.7
99.7
1
Canby - Granite Falls 115 kV
105.0
96.3
96.3
1
Johnson - Morris 115 kV
79
New Transmission Issues Resulting From Big
Stone – Brookings CMVP
Element
# of
** None **
80
• 2026 RPS wind zone at Big Stone of 460 MW
• Big Stone ties in the N-S Hankinson to Blair 230 kV
line with 2-115 kV outlets to Canby and Morris
• Analyses show overload on Big Stone to Blair and
then 230 kV and 115 kV outlets west (to Watertown)
and east (to Granite Falls)
• An alternative to build new 345 kV from Big Stone to
Canby to Granite Falls to Minnesota Valley and
rebuild 230 kV or new 345 kV to Morris could
provide an alternative outlet for Brookings wind
• Cost of this alternative higher than 345 kV path to
Brookings CMVP station
81
N LaCrosse – Cardinal CMVP Mitigated Map
82
BES Transmission Issues Mitigated by N
LaCrosse – Cardinal CMVP – NERC Cat B
Element
Werner - Rocky Run 345 kV
N LaCrosse - Mayfair 161 kV
N LaCrosse - LaCrosse Tap 161 kV
LaCrosse - Mayfair 161 kV
Seneca - Gran Grae 161 kV
Seneca - Genoa 161 kV
Hydro Lane 161/115 kV Xfmr
Arpin 345/138 kV Xfmr
Sigel - Arpin 138 kV
Adams 345/161 kV Xfmr
Blackhawk - Bremer Co 161 kV
Emery - Floyd 161 kV
# of
829.0
100.6
100.6
2
197.0
131.8
97.3
8
162.0
132.8
95.3
4
196.6
115.8
100.2
3
201.0
108.6
108.6
1
302.0
100.2
96.8
4
187.0
112.5
97.0
3
381.0
104.0
104.0
2
339.0
95.4
95.4
2
263.3
100.4
100.4
1
193.0
95.8
95.8
1
240.0
96.6
96.6
1
83
Non-BES Transmission Issues Mitigated by N
LaCrosse – Cardinal CMVP – NERC Cat B
Element
605292 MONROCO8 69.0 605294 ROCKLND8 69.0 1
605292 MONROCO8 69.0 680146 SPARTA 69.0 1
605296 WSTSALE8 69.0 605316 LAX 8 69.0 1
605349 WISSOTAG 69.0 605523 LFY TAP8 69.0 1
605351 WISOTBC8 69.0 605523 LFY TAP8 69.0 1
605351 WISOTBC8 69.0 680482 DPC TAP8 69.0 1
605353 CADOTT 8 69.0 680482 DPC TAP8 69.0 1
605355 STANLEY8 69.0 605420 DELMAR 8 69.0 1
605353 CADOTT 8 69.0 605354 BOYD 8 69.0 1
605354 BOYD 8 69.0 605420 DELMAR 8 69.0 1
605300 CATARAC8 69.0 605303 T MEL2 8 69.0 1
698321 A07 69 69.0 698322 MCK 69 69.0 1
Bell Center 161/69 kV Xfmr
698333 HLT 69 69.0 698337 WMT 69 69.0 1
LaCrosse 161/69 kV Xfmr 1
# of
47.8
147.4
115.8
2
72.0
122.3
122.2
4
84.9
110.1
110.1
1
72.0
113.1
105.4
3
72.0
109.2
101.5
3
72.0
105.0
97.4
3
72.0
105.0
97.4
3
72.0
98.1
98.1
1
72.0
102.3
102.3
1
72.0
100.1
100.1
1
32.0
121.8
96.2
2
42.0
117.6
96.2
16
60.0
100.2
100.2
1
54.0
102.2
95.6
3
70.0
98.9
98.9
1
84
LaCrosse – Cardinal CMVP – NERC Cat B (Cont.)
# of
LaCrosse 161/69 kV Xfmr 2
70.0
99.3
99.3
1
698318 LPS 69 69.0 698321 A07 69 69.0 1
42.0
105.8
96.8
11
698315 CHC 69 69.0 698319 COT 69 69.0 1
36.0
108.5
97.1
11
605297 TMAC 2 8 69.0 605300 CATARAC8 69.0 1
32.0
109.4
109.4
1
698114 WKA 69 69.0 698115 BOS 69 69.0 1
64.0
95.4
95.4
1
698007 DAR 69 69.0 698035 GTT 69 69.0 1
87.0
97.4
97.4
2
698115 BOS 69 69.0 698116 BTA 69 69.0 1
67.0
97.0
96.6
3
Turkey River 161/69 kV Xfmr
34.0
111.7
96.6
2
698322 MCK 69 69.0 698332 A13 69 69.0 1
42.0
108.1
95.7
14
698331 CAR 69 69.0 698332 A13 69 69.0 1
42.0
112.0
96.5
17
630240 MONONA_8 69.0 680477 FARMBURG 69.0 1
48.0
96.0
96.0
1
698016 EEN 69 69.0 698017 MIP 69 69.0 1
49.0
106.1
106.1
2
630244 BIGSPRT8 69.0 630269 ELKADER8 69.0 1
45.0
100.2
100.2
1
Jackson Co 161/69 kV Xfmr
47.0
98.9
98.9
1
630271 GUTNBRG8 69.0 630282 TURK RV8 69.0 1
36.0
95.6
95.6
1
Element
85
BES Transmission Issues Mitigated by N
LaCrosse – Cardinal CMVP – NERC Cat C
Element
Rating Maximum
(MVA) Loading (%)
Minimum
Loading (%)
# of
Contingencies
Werner - Rocky Run 345 kV
829.0
106.7
100.7
5
LaCrosse - Mayfair 161 kV
196.6
130.0
99.6
5
N LaCrosse - LaCrosse Tap 161 kV
162.0
142.8
100.2
7
Seneca - Genoa 161 kV
302.0
97.7
96.3
3
LaCrosse - Monroe Co 161 kV
267.3
96.1
96.1
1
Sigel - Arpin 138 kV
339.0
101.3
101.3
1
Arpin 345/138 kV Xfmr
381.0
104.5
104.5
1
Hydro Lane 161/115 kV Xfmr
187.0
98.7
98.7
1
86
LaCrosse – Cardinal CMVP – NERC Cat C
Element
605292 MONROCO8 69.0 680146 SPARTA 69.0 1
680142 T TC
69.0 699901 TIMBERWOLF 69.0 1
605381 RUSK 8 69.0 605528 RCD TAP8 69.0 1
605292 MONROCO8 69.0 605294 ROCKLND8 69.0 1
605382 ELKMOUN8 69.0 605424 RUSK EM8 69.0 1
605381 RUSK 8 69.0 605424 RUSK EM8 69.0 1
605344 EAUCLAI8 69.0 605382 ELKMOUN8 69.0 1
605311 SW CRK 8 69.0 605316 LAX 8 69.0 1
605318 GALESVI8 69.0 605319 TREMPLO8 69.0 1
605310 COULEE 8 69.0 605311 SW CRK 8 69.0 1
605349 WISSOTAG 69.0 605523 LFY TAP8 69.0 1
605351 WISOTBC8 69.0 605523 LFY TAP8 69.0 1
605353 CADOTT 8 69.0 680482 DPC TAP8 69.0 1
605351 WISOTBC8 69.0 680482 DPC TAP8 69.0 1
605568 BUGLELK8 69.0 680166 INDEPNDN 69.0 1
Tremval 161/69 kV Xfmr
605353 CADOTT 8 69.0 605354 BOYD 8 69.0 1
Spring Green 138/69 kV Xfmr
# of
72.0
86.0
36.0
47.8
36.0
36.0
34.5
53.3
45.1
66.0
72.0
72.0
72.0
72.0
25.0
70.0
72.0
96.0
164.5
127.5
171.0
147.2
160.7
160.5
162.2
128.0
128.1
109.0
105.9
102.1
98.0
98.0
131.2
106.8
95.4
96.6
102.2
127.5
171.0
104.1
160.7
160.5
162.2
98.6
128.1
109.0
103.5
99.8
95.7
95.7
131.2
96.8
95.4
96.6
4
1
1
7
1
1
1
3
1
1
2
2
2
2
1
3
1
1
# of
Outstanding
Contingencies
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
87
LaCrosse – Cardinal CMVP – NERC Cat C (Cont.)
Element
698321 A07 69 69.0 698322 MCK 69 69.0 1
605318 GALESVI8 69.0 680402 NEW AMST 69.0 1
698333 HLT 69 69.0 698337 WMT 69 69.0 1
605490 WHTEHAL8 69.0 605568 BUGLELK8 69.0 1
Marshland 161/69 kV Xfmr
698007 DAR 69 69.0 698035 GTT 69 69.0 1
698318 LPS 69 69.0 698321 A07 69 69.0 1
698115 BOS 69 69.0 698116 BTA 69 69.0 1
698116 BTA 69 69.0 698119 MUS 69 69.0 1
698114 WKA 69 69.0 698115 BOS 69 69.0 1
698315 CHC 69 69.0 698319 COT 69 69.0 1
605300 CATARAC8 69.0 605303 T MEL2 8 69.0 1
630271 GUTNBRG8 69.0 630282 TURK RV8 69.0 1
630244 BIGSPRT8 69.0 630269 ELKADER8 69.0 1
630240 MONONA_8 69.0 680477 FARMBURG 69.0 1
Whitcomb 115/69 kV
630895 VINTON MUNI869.0 630902 VINTON 8 69.0 1
630019 LIBERTY8 69.0 630321 LIBERTP8 69.0 1
# of
42.0
45.1
54.0
25.0
112.0
87.0
42.0
67.0
67.0
64.0
36.0
32.0
36.0
45.0
48.0
56.0
72.0
36.0
111.5
103.6
99.6
120.5
97.0
100.2
99.4
99.3
97.0
95.4
100.2
101.5
97.1
101.3
97.0
96.6
102.0
123.9
95.1
103.6
99.6
97.8
95.0
97.9
96.4
97.0
95.5
95.4
96.9
97.8
95.4
100.0
95.8
96.6
95.4
103.4
8
1
1
2
2
2
3
6
5
1
3
2
2
2
2
1
4
3
# of
Outstanding
Contingencies
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
88
New Transmission Issues Resulting From N
LaCrosse – Cardinal CMVP
Element
# of
** None **
89
• Given the number of BES and non-BES constraints
alleviated by North LaCrosse CMVP, no low voltage
fix at lower cost is conceivable
• With wind behind it further enabled by Brookings
MVP, new 345 kV out of North LaCrosse essential
• Besides alleviating thermal constraints 345 kV line
paralleling the existing stability constrained flowgate
thereby increasing stability limit and supplying wind
energy directly into metro area is the best
conceivable alternative
90
Pleasant Prairie – Zion CMVP Mitigated Map
91
Pleasant Prairie – Zion CMVP – NERC Cat B
Element
Rating Maximum
Minimum
# of
Contingencies
Kenosha - Lakeview 138 kV
288.0
114.7
114.7
2
Zion - Lakeview 138 kV
264.0
115.0
115.0
2
Waukegan - Zion 138 kV
264.0
102.8
102.8
2
Sctn of Garden - Rock Falls 138 kV
182.0
95.5
95.1
9
92
Pleasant Prairie – Zion CMVP – NERC Cat C
Element
Rating Maximum
Minimum
# of
Contingencies
Kenosha - Lakeview 138 kV
288.0
194.2
124.6
3
Zion - Lakeview 138 kV
264.0
200.4
125.7
4
Waukegan - Zion 138 kV
264.0
187.0
113.3
3
Bain - Kenosha 138 kV
438.0
134.3
98.4
3
Sctn of Garden - Rock Falls 138 kV
386.0
138.4
138.4
1
Bain 345/138 kV Xfmr 2
382.0
128.7
106.3
2
Bain 345/138 kV Xfmr 1
382.0
128.2
104.6
2
93
Pleasant Prairie – Zion CMVP – Cat B
Element
** None **
Rating
(MVA)
Maximum
Loading (%)
Minimum
Loading (%)
# of
Contingencies
Pleasant Prairie – Zion CMVP – Cat C
Element
Zion - Zion Energy 345 kV
Zion - Pleasant Prairie 345 kV
Oak Creek - St Rita 138 kV
Rating Maximum
Minimum
# of
1201.0
108.6
108.6
1
1528.0
96.8
96.8
1
241.0
105.3
105.3
1
94
• Paralleling the existing 345 kV constraint on
Pleasant Prairie-Zion 345 kV and KenoshaLakeview-Zion-Waukegan 138 kV is the most
effective transmission solution.
• No comparable alternatives identified
95

MVA - MISO

Transcription

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