Updated Economic Issues List
2
Issue Id
Constraint Name
Contingency
M-1 Frederick Town AECI - Frederick Town AMMO 161 kV Line Lutesville - St Francois 345kV Line S-2 North East - Charlotte 161 kV Line Iatan – Stranger 345 kV Line S-3 Logan - SW Minot 115 kV Line Blaisedell 230/115 kV Transformer S-4 North Platt - Stockville 115 kV Line Gentleman - Red Willow 230 kV Line M-5 Blue Earth - Winnebago 161kV Line Lakefield Junction - Lakefield 345kV Line M-6 Wapello 161/69 kV Transformer T1 Wapello 161/69 kV Transformer T2 S-7 Collins - Stockton 161 kV Line Neosho – La Cygne 345kV Line M-9 Prairie 345/230kV Transformer T2 Prairie 345/230kV Transformer T1 M-10 Swartz - Alto 115kV Line Baxter Wilson - Perryville 500 kV Line M-11 Reed - Dumas 115kV Line Sterlington - El Dorado 500kV Line S-12 Essex - Idalia 161 kV Line Essex - New Madrid 345 kV Line M-13 Grimes – Mt Zion 138 kV Line Grimes – Ponderosa 230 kV Line S-14 South Shreveport – Wall Lake 138 kV Line Dolet Hills 345/230 kV Transformer
Screening Process
•
SPP performed initial evaluation for projects
addressing SPP issues
•
MISO performed initial evaluation for projects
addressing MISO issues
•
Projects addressing multiple issues were
evaluated by the RTO which has the highest
ranked issue being addressed by the project
Screening Criteria
•
Screening Index (SI):
–
One year benefit / (estimated cost in 2024 dollars*
Annual fixed charge rate)
•
Screening Index of at least .5
•
Benefits and cost calculated for 2024
•
Proposed solution benefits = SPP Benefit + MISO
Benefit
–
IS included as a part of SPP
Updates to Issues List
5
•
Logan-SW Minot FLO Blaidsdell transformer
–
Logan-SW Minot reconductor
•
North Platt-Stockville FLO Gentlemen-Red
Willow
–
Gentlemen-Red Willow rating decrease removed
this need
•
Collins-Stockton FLO Neosho-Lacygne
–
Collins-Stockton rating increase significantly
lowered needs congestion
Updates to Issues List
6
•
Blue Earth - Winnebago 161 kV constraint
–
This constraint was binding significantly due to
incorrect modeling of a Special Protection Scheme
(SPS) in PROMOD
–
Congestion reduced significantly
•
Wapello-Ottumwa 161 kV Ckt 2 constraint
–
Rating increase relived congestion on this
constraint
–
Congestion shifted to Wapello 161/69 kV
Transformer & Jeff – Wapello 161 kV
Potential Seams Projects Passing
Screening
8
Projects
Needs Addressed
New 28 mile Dolet Hills-Messick
345kv line, new 500/345kV
transformer at Messick
S Shreve Port-Wallace Lake 138kV
FLO Dolet Hills 345/230kV
transformer
New 100 mile Elm Creek-Mark
Moore 345kV line
North East-Charlotte 161kV FLO
Iatan-Stranger 345kV
Replacing 30MVA 161/69kV
transformer at Huntley/Winnebago
with a 75MVA transformer
North East-Charlotte 161kV FLO
Iatan-Stranger 345kV
North East-Charlotte 161kV 2
nd
Ckt
North East-Charlotte 161kV FLO
Dolet Hills-Messick 345kV Line
9
Total Cost:
$52M
Screening Index:
0.63
Total APC
Benefit: $5.5M
MISO % Total
APC Benefit: 90%
SPP % Total APC
Benefit: 10%
Elm Creek-Moore 345kV Line
10
Total Cost:
$142.7M
Screening Index:
0.74
Total APC
Benefit: $17.9M
MISO % Total
APC Benefit: 15%
SPP % Total APC
Benefit: 85%
Huntley-Winnebago Transformer
11
Total Cost:
$3.8M
Screening Index:
1.57
Total APC
Benefit: $1M
MISO % Total
APC Benefit: 72%
SPP % Total APC
Benefit: 27%
North East-Charlotte 2
nd
Ckt 161kV
12
Total Cost:
$24M
Screening Index:
1.75
Total APC
Benefit: $14M
MISO % Total
APC Benefit: 52%
SPP % Total APC
Benefit: 48%
Additional Projects
•
These projects pass the Screening Index but
provide minimal benefits (between 1 and 5%)
to one RTO
–
Projects could increase when evaluated over 20
years
•
For a project to qualify for interregional cost
allocation each RTO must receive at least 5%
of benefits
Projects
Needs Addressed
345 kV switching station where the parallel circuit from
Gentleman seperates and construct a 345 kV line from
new switching station Axtel
Mark Moore to Elm Creek 345kV
Elm Creek to Moore 345 kV
Replace current 30 MVA 161/69 kV transformer at
Huntley/Winnebago with 75 MVA unit
Rebuild the South Shreveport to Wallace Lake 138 kV
line with 1533.3 ACSR/TW
Rebuild Stranger - Iatan 161 kV at 345 kV
161 kV line from Neast to Montreal
2nd 161 kV line from Neast to Charlot
345kV line from Wolcott to Iatan with 345/161kV
Wolcott transformer
345 kV circuit from Dolet HIlls to Messick and a new
500/345 kV transformer at the Messick Substation.
Rebuild South Shreveport-Wallace Lake 138 kV line to
246/246 MVA
Additional Projects
North Platt - Stockville
115 kV FLO Gentleman -
Redwillow 345 kV
North East-Charlotte
161kV FLO
Iatan-Stranger 345kV
S Shreve Port-Wallace
Lake 138kV FLO Dolet
Hills 345/230kV
transformer
Solution Ideas Screening – Phase I
16
MISO Annual Fixed Charge rate of 17.9%
Project in-service date was assumed to be 2024
Issue
ID
Issue Description
Solution Idea
Screening
Index
Estimated
Cost
(M$ - 2015)
M-10
Swartz - Alto 115 kV
FLO
Baxter Wilson - Perryville 500 kV
Alto Series reactor
2.46
10.4
M-13
Grimes - Mt Zion 138 kV
FLO
Grimes - Ponderosa 230 kV
New Walker Tap-Rivtrin 138 kV line
0.59
47.5
M-1
Frederick Town AECI - Frederick Town AMMO 161 kV
FLO
Lutesville - St Francis 345 kV
New St Francois - Fletcher 345 kV
line
0.53
107.9
New St Francois - Fletcher - Taum
Alto Series Reactor
•
Project Details
–
•
Addition of a series
reactor on the Swartz –
Alto 115kV line at the
Alto 115kV Substation
•
Location
- Louisiana
•
This project does not fully
relive the congestion on
the Swartz – Alto (M-10)
constraint
•
Reduces the congestion
by 90%
Walker Tap - Rivtrin 138 kV line
•
Project Details
–
•
Tap the existing Grimes –
Crockett 345kV line at Walker
Tap
•
Build 345/138kV transformer
and build 11 miles of 138kV
line from Walker Tap to
Rivtrin
•
Location
- Texas
•
This project completely relieves
the Grimes - Mt Zion 138 kV
(M-13) constraint
St Francois - Fletcher 345 kV Line
19
•
Project Details
–
•
Build 50 miles of 345kV line
from St. Francois to Fletcher
•
Location
– Missouri
•
This project does not fully relive
the Frederick Town AECI -
Frederick Town AMMO 161 kV
constraint
•
It reduces the congestion by
75 %
•
Increases Congestion on the
New Madrid 345/161kV
Transformer T2
St Francois - Taum Sauk - Fletcher 345 kV
Line
•
Project Details
–
•
55 miles of 345kV line from
Fletcher to new substation
close to Taum Sauk and then
to St. Francois
•
2-345/138kv transformers to
tie in 138kV lines from Taum
Sauk
•
Location
– Missouri
•
This project does not fully relive
the Frederick Town AECI -
Frederick Town AMMO 161 kV
constraint
•
It reduces the congestion by
71 %
•
Increases Congestion on the
New Madrid 345/161kV
Transformer T2
Contact Info
•
SPP
–
–
Brett Hooton: 501-688-1684
•
MISO
–
[email protected]
–
Jenell McKay: 504-846-7108
