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Central Maine Power Central Maine Power Company Local System Plan Presentation Presentation Planning Advisor y Committee Meeting October 23, 2014 1 1
Transcript of Central Maine Power Company - iso-ne.com · PDF fileCentral Maine Power Company 83 Edison...
Central Maine Power Central Maine Power Company
Local System PlanPresentationPresentation
Planning Advisory Committee Meetingg y g
October 23, 2014
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Purpose of Local System Plan
Per Attachment K Local this LSP presentationPer Attachment K – Local, this LSP presentation:• Describes projected improvements to non-PTF
that are needed to maintain reliable customerthat are needed to maintain reliable customer service.
• Reflects:• Reflects:– LSP Needs Assessments– Corresponding transmission system planning studiesCorresponding transmission system planning studies
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LSP Communication
• LSP is communicated to the PAC at an ISO-NE PAC RSP meeting once a year.
Separate meetings can be arranged if needed– Separate meetings can be arranged if needed• PAC, Transmission Customers, and other Stakeholders
have 30 days to provide written comments for consideration to CMPconsideration to CMP
– CMP’s contact:Curtis BeveridgegManager System PlanningCentral Maine Power Company83 Edison DriveAugusta, Maine 04336 (email: [email protected])
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LSP Communication cont.
• Each PTO is individually responsible for publicly posting and updating the status of its p y p g p grespective LSP and the transmission projects list on a website in a format similar to the RSP project list
• The ISO-NE RSP project list contains links to each individual PTO’s transmission project list and is located at:htt //i• http://iso-ne.com/committees/comm_wkgrps/prtcpnts_comm/topac/mtrls/index.html
• CMP’s LSP project list and Planning ManualCMP s LSP project list and Planning Manual are located at:http://www.cmpco.com/SuppliersAndPartners/TransmissionServices/CMPTransmissionSvc/lsp.html
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CMP LSP Project List
• Central Maine Power will update the LSP project list at least annually.
• A presentation of the LSP will be made annually.
• LSP Project List is a cumulative listing of proposed transmission solutions intended to meet identified needs.
• Similar to PTF projects in the RSP, the LSP project list contains a status of each non-PTF project:
Concept- Project is under consideration as a possible solution to a need, but little or noConcept Project is under consideration as a possible solution to a need, but little or no analysis is available
Proposed- CMP has determined that the project is an appropriate solution to a need, but has not yet obtained internal budget approval, or final regulatory approval
Planned- Budgetary and regulatory approval has been obtainedPlanned Budgetary and regulatory approval has been obtained
Under Construction-
Project is approved and is under design/construction
In-Service- Project is complete
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CMP’s Local System Planning Process
• All CMP system upgrades are determined in accordance with Ib d l USA El i S Pl i M l
Process
Iberdrola USA Electric System Planning Manual.• Planning studies can result from:
– Periodic Assessment of CMP’s 14 Local Planning Areas– Load Growth– Retail or Wholesale Customer Request – Generator Interconnection Request– System-Wide Contingency Analysis
• Studies may utilize both ISO-NE Library Base Cases and/or Local CMP Base Cases.
• Generator Interconnections on the non-PTF Transmission System are guided by the CMP Transmission & Distribution Interconnection Requirements for Generation.
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Augusta Area
Study Area
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LSP Projects – Augusta Area
Project Origin
Major Project
Project Description
Needs Assessment
Projected In-Service
DateStatus
Augusta Area Reliability
Coopers Mills Substation
Add 115/12.47 kV transformer at Coopers Mills (Maxcy's)
Voltage violations following loss of Maxcys 115/34.5 kV transformer
2015 Under-Construction
U d i ti Existing 115/34 5 kVReliability Study
Substation Upgrade existing 115/34.5 kV transformerCoordinate w/MPRP
Existing 115/34.5 kV transformer overloaded under single element contingency conditions
2015 Under-Construction
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Berwick/Lebanon Area
1010
LSP Projects – Berwick/Lebanon Area
Project Origin
Major Project
Project Description
Needs Assessment
Projected In-Service Date
Status
Berwick Substation
New 34/12 kV Berwick Substation and 34.5 kV transmission line to Bassett (Section 116)
Load growth, inadequate 34/12 kV capacity, overloaded distribution circuits
2016 Under construction
Berwick -Lebanon
Bassett (Section 116) distribution circuits
New Lebanon Substation
Add new Lebanon Substation and 34.5 kV transmission line to Butler’s Corner (S ti 185A)
Load growth in Lebanon area will exceed area capacity
2014 Under construction
Area ReliabilityStudy
(Section 185A) capacity
Sanford Complete rebuild of
Expansion required to accommodate additional transmission line. Sanford
Switch Substation
Complete rebuild of Sanford Switch Substation
There are also concerns regarding aging facility, maintenance, reliability, and safety
2014 Under Construction
1111
safety
LSP Projects – Berwick/Lebanon Area
Project Origin
Major Project
Project Description
Needs Assessment
Projected In-Service Date
Status
Berwick -LebanonArea ReliabilityStudy (cont.)
South Sanford Substation
Complete rebuild of South Sanford Substation
Load growth, inadequate 34/12 kV capacity, overloaded distribution circuits
2015 Planned
distribution circuits
1212
Brunswick/Topsham Area
1313
LSP Projects – Brunswick/Topsham Area
Project Origin
Major Project
Project Description
Needs Assessment
Projected In-Service
Date
Status
Date
Line work Re-rate 34.5 kV Section 76
Overloaded under single element contingency conditions
2016 Planned
Brunswick -Topsham Area Study
Brunswick Hydro Substation
Upgrade Brunswick Hydro T2 34/12 kV transformer
Overloaded under normal operating conditions
2016 Planned
Upgrade Overloaded underWoolwich Substation
Upgrade Woolwich T1 34/12 kV transformer
Overloaded under normal operating conditions 2017 Proposed
Topsham Upgrade Topsham T2 34/12 kV
Overloaded under l ti 2020 P dp
Substation T2 34/12 kV transformer
normal operating conditions
2020 Proposed
1414
LSP Projects – Brunswick/Topsham Area
Project Origin
Major Project
Project Description
Needs Assessment
Projected In-Service
DateStatus
Date
Brunswick -Topsham Area
T h 115
Rebuild the Topsham Substation to a 115 kV six breaker i b
Overloaded under i l l tStudy
(Cont)
Topsham 115 kV Substation
ring bus configuration. Upgrade Topsham 115 kV T1 and T3 115/34.5 kV transformers
single element contingency conditions
2020 Concept
transformers
Distribution Betterment
Cooks Corner Substation
Rebuild the existing Cooks Corner Substation to a new green field location
N-1 violations of Distribution Planning Criteria
2018 Concept
field location.
1515
Lakes Region Area
1616
LSP Projects – Lakes Region Area
Project Origin
Major Project
Project Description
Needs Assessment
Projected In-Service
Date
Status
DateNew (9.5 mile) 34.5 kV line from Bridgton to Kimball Road (S ti 98)
Voltage violations
2017 Planned
Lakes Region AreaR li bilit
Northern Sub-Area
(Section 98)g
under contingent system conditionsInstall a 115/34.5
kV 30/56 MVA transformer at Kimball Road
2017 Planned
Reliability Study
UpgradesRebuild 34.5 kV line Section 94
Thermal violation under contingent system conditions
2017 Planned
Remove voltage Back feeding NH Remove voltage supervision for the reverse power relaying on Lovell T1
under post-contingent conditions creates voltage and thermal violations
2016 Planned
1717
LSP Projects – Lakes Region Area
Project Origin
Major Project Project Description Needs
AssessmentProjected In-Service Date
Status
New 115/34 kV S/S at New Gloucester with a four breaker ring bus and 115/34 kV transformer and (8 mile) 115 kV
Voltage and thermal violations under contingent
t diti
2020 Concept
Lakes Region Area Eastern
Sub Area
and (8 mile) 115 kV transmission line to Surowiec (Section 282)
system conditions
Relocate Raymond 34 kV S/S and rename to Webbs Mills S/S install Room needed for 2020 Proposed
Reliability Study(Cont)
Sub-Area Upgrades
Webbs Mills S/S, install two 5.4 MVAR capacitor banks
expansion 2020 Proposed
New (4.5 mile) 34.5 kV line from Raymond 115
Voltage and thermal violations under contingent 2020 Canceledy
kV to Webbs Mills under contingent system conditions
New (8 mile) 34.5 kV line from New Gloucester to Webbs Mills
Voltage and thermal violations under contingent
t diti
2020Proposed
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ebbs s system conditions
LSP Projects – Lakes Region Area
Project Origin
Major Project Project Description Needs
AssessmentProjected In-Service Date Status
Lakes Region AreaReliability
Eastern Sub-Area Upgrades
Shaw Mills Substation Upgrades; two 5.4 MVAR capacitor banks and three 34.5 kV breakers
Voltage violations under contingent system conditions
2017 Planned
T 34 5 kV b kStudy(Cont)
Western Sub-Area Upgrades
Two 34.5 kV breakers, two 5.4 MVAR capacitor banks at the North Limington Substation
Voltage violations under contingent system conditions
2016 Planned
Section 78 needs
Maintenance -Reliability Inspection
New Waterford
Add new Waterford Substation and 34.5 kV transmission line to
to be rebuilt due to its asset condition. However, due to the high cost of a rebuild, it was decided to retire 2018 ConceptInspection
Substation transmission line to Papoose Pond
decided to retire Section 78 and feed Papoose Pond from a new Waterford Substation.
p
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Subs a o
Lewiston/Auburn Area
2020
LSP Projects – Lewiston/Auburn Area
Project Origin
Major Project
Project Description
Needs Assessment
Projected In-Service
Date
Status
Date
Line workChange protection settings on Section 72
34.5 kV line overload post-contingency
2015 Planned
Replace Section 34 5 kV liLewiston -Auburn AreaReliability Study
Great Falls Substation
ep ace Sect o148 cable into Great Falls Substation
34.5 kV line overload post-contingency
2015 Planned
Upgrade GulfTransformer overloaded with loadGulf Island
Substation
Upgrade Gulf Island 115/34.5 kV T4 transformer
overloaded with load growth, coordinate with MPRP reinforcements
2020 Planned
2121
Midcoast Area NTA
Study Area
2222
LSP Projects – Midcoast Area NTA
Project Origin
Major Project
Project Description
Needs Assessment
Projected In-Service
DateStatus
Date
Midcoast Area NTA Analysis(the Camden -Rockland
Park St Substation
Add 3.6 MVAR 34.5 kV capacitor bank
Low voltage 2015 Under-Construction
Add 1 mile 34 5 kV Voltage and thermalRocklandArea ReliabilityStudy)
Line Work
Add 1 mile 34.5 kV line to separate Section 51 (Warren – Waldoboro)
Voltage and thermal violations under contingent system conditions
2016Proposed –
pending NTA analysis
Additi lLoad growth, i d t 34/12 kV
Distribution Betterment
Meadow Rd Substation
Additional distribution circuit, upgrade 34/12 kV transformer and install a new control house
inadequate 34/12 kV capacity, overloaded distribution circuits, existing S/S needed expansion to accommodate
2015 Proposed
house accommodate upgrades
2323
LSP Projects – Midcoast Area NTA
Project Origin
Major Project
Project Description
Needs Assessment
Projected In-Service
Date
Status
Date
Boothbay Upgrades
Add a 2.7 MVAR capacitor bank at Boothbay
Low voltage 2016 Planned
Power Factor
Midcoast Area NTA Analysis (Cont)
Upgrades o e actoCorrection at Boothbay Harbor 12 kV
Low voltage 2015 Canceled
MasonRelay Modifications on
34.5 kV line overload post-(Cont) Mason
UpgradesModifications on Section 25 at Mason
overload postcontingency 2015 Planned
Line Work Rebuild 34.5 kV S i 23
Voltage violations under contingent 2016
Proposed –pending NTA
l iLine Work Section 23 under contingent system conditions
2016 analysis
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LSP Projects – Midcoast Area NTA
Project Origin
Major Project
Project Description
Needs Assessment
Projected In-Service
DateStatus
Date
Midcoast Area NTA Analysis (Cont)
Newcastle Substation
Construct a 4-breaker 115 kV ring bus and install a 34.5 kV b ti b k
Voltage collapse under contingent 2017 Planned(Cont) Substat o
Upgrades bus-tie breaker. Also relocate Section 18 onto bus 3
u de co t ge tsystem conditions
0 a ed
Maintenance - BristolUpgrade Bristol Overloaded under
Reliability Inspection
Bristol Substation
T1 normal operating conditions
2015 Under Construction
2525
Portland Area NTA
Study Area
2626
LSP Projects – Portland Area NTA
Project Origin
Major Project
Project Description
Needs Assessment
Projected In-Service
Date
Status
Date
Raven Farm E i
New 115 kV bus with four breaker, breaker-and-a-half configuration. Al i t ll
Voltage and thermal violations under contingent system
2018 Concept– pending
Portland Area NTA
Expansion (115/34.5 kV)
Also, install a 115/34 kV transformer and 34.5 kV line to Elm Street
conditions 2018 Co cept pe d gNTA analysis
Area NTA Analysis
Line work
Rebuild 34.5 kV Section 181
Overloaded under single element contingency conditions
2018 Concept– pending NTA analysis
Rebuild a portion of 34.5 kV Section 180
Overloaded under single element contingency conditions
2016 Concept
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LSP Projects – Portland Area NTA
Project Origin
Major Project
Project Description
Needs Assessment
Projected In-Service
Date
Status
DatePortland Area NTA Analysis(Cont)
Red BrookUpgrade Red Brook 115/34.5 kV T1 to a 30/56 MVA
Transformer overloaded under contingent system conditions
2018 Concept– pending NTA analysis
( ) conditions
2828
Portland North Area
Study Area
2929
LSP Projects – Portland North Area
Project Origin
Major Project
Project Description
Needs Assessment
Projected In-Service
Date
Status
Date
Line workRe-rate/rebuild portions of 34kV line Section 180A
Thermal violations under normal operating and contingent system
diti
2018 Concept – pending NTA analysis
Portland NorthArea Reliability
conditions
Freeport Substation
Add two 2.7 MVAR capacitor banks
Voltage violations under contingent system conditions
2016 Concept –pending NTA analysis
Bi h St t Voltage violationsea e ab yStudy
Bishop StreetSubstation
Add a 5.4 MVAR capacitor bank
Voltage violations under contingent system conditions
2016 Planned
Elm Street Bring S164 in/out of
Thermal violations under contingent system conditions Concept pendingElm Street
Substation
gElm St, re-rate S164A
system conditions(Not needed if Raven Farms 115 kV is built)
2016 Concept –pending NTA analysis
3030
LSP Projects – Portland North Area
Project Origin
Major Project
Project Description
Needs Assessment
Projected In-Service
Date
Status
Date
Line work Rebuild Section 103
Overloaded under normal operating and/or single element contingency conditions
2018
Proposed – pending Lakes Region Area
Reliability Study results
Portland NorthArea ReliabilityStudy
Falmouth Substation
Add two 34.5 kV breakers
Voltage and 25 MW loss of load criteria violations under contingent system
2018 Concept –pending NTA analysis
Proposed – pendingS udy(Cont) Swett Rd.
SubstationAdd two 34.5 kV breakers
Low Voltages in the local area under single element contingencies
2018
Proposed pending Lakes Region Area
Reliability Study results
East Deering115-34 kV substation with Additional source
Concept – pending East Deering Substation
substation with 115 kV line from Raven Farm.
Additional source needed in the area 2018 NTA analysis
3131
LSP Projects – Portland North Area
Project Origin
Major Project
Project Description
Needs Assessment
Projected In-Service
Date
Status
Date
North Yarmouth S b t ti
New 115/34kV S/S tapped from Sect 166, and 14.8 mi 34.5 kV li t G &
Voltage violations under contingent system conditions 2020 Concept – pending
NTA analysis
Portland NorthArea ReliabilityStudy(Cont)
Substation line to Gray & Freeport with breakers
a a ys s
Swett Road Add 5.4 MVAR Voltage violations under contingent 2018
Proposed – pending Lakes Region Area ( )
Substation capacitor bank under contingent system conditions
2018 Reliability Study results
Prides CornerSubstation
Add an additional 5.4 MVAR capacitor bank
Voltage violations under contingent system conditions
2018 Concept – pending NTA analysis
3232
Skowhegan Area
Study Area
3333
LSP Projects – Skowhegan Area
Project Origin
Major Project
Project Description
Needs Assessment
Projected In-Service
Date
Status
Date
SkowheganArea ReliabilityStudy
Lakewood Substation Expansion
Loop Section 241 into a new 115 kV ring bus with 2nd
115/34 5 kV
Voltage collapse under contingent system conditions
2015 PlannedStudy Expansion 115/34.5 kV
transformersystem conditions
3434
Waterville/Winslow Area
Study Area
3535
LSP Projects – Waterville/Winslow Area
Project Origin
Major Project
Project Description
Needs Assessment
In-Service Date
Status
Line workRe-rate portions of 34.5 kV line Section 38.
Overloaded under single element contingency conditions
2015 Under-Construction
O l d d dWaterville -Winslow Area Reliability Study
Line workRe-rate portions of 34.5 kV line Section 13.
Overloaded under single element contingency conditions
2014 Canceled
Re-rate 34.5 KV Overloaded under
Line Workoverhead portion of Section 38B
single element contingency conditions
2015 Under-Construction
Li kRe-conductor a
ti f 34 5 kV
Overloaded under single element 2017 Pl dLine work portion of 34.5 kV
line Section 56.
single element contingency conditions
2017 Planned
3636
LSP Projects – Waterville/Winslow Area
Project Origin
Major Project
Project Description
Needs Assessment
Projected In-Service
DateStatus
DateBring Section 241 in/out of new County Road S/S by constructing 7
il f 115Waterville -Winslow Area Reliability Study (cont.)
County Road Substation
miles of new 115 kV Transmission. Construct a 4-breaker ring bus with a second 115/34 kV
Voltage and thermal violations under contingent system conditions
2018 Proposed
115/34 kV transformer. The existing Rice Rips Substation will be replaced.
MaintenanceMaintenance -Reliability Inspection
South China Substation
Upgrade South China T1
Overloaded under normal operating conditions
2015 Under Construction
3737
LSP Projects – Other
Project Origin
Major Project
Project Description
Needs Assessment
Projected In-Service
Date
Status
Date
Line workSection 54 maintenance upgrades
These 34.5 kV line
2015 Under Construction
Li k Rebuild Section 2016 U d C t tiMaintenance -Reliability Inspection
sections are in very poor condition and need to be rebuilt to improve reliability.
Line work ebu d Sect o172 2016 Under Construction
Line workRebuild Section 187 2015 Under Construction
Rebuild SectionLine work
Rebuild Section 5A 2014 Under Construction
Upper Kennebec Area Reliability
Moxie Falls Substation
New Moxie Falls 115/34.5 kV
Inadequate voltage regulation, low voltage violations 2018 ConceptArea Reliability
StudySubstation Substation during all lines in
conditions
3838
LSP Projects – Substation Modernization
Project Origin
Major Project
Project Description
Needs Assessment
Projected In-Service
Date
Status
Date
Butlers Corner Substation
Construction of a new Butlers Corner Substation at a new location
Asset condition, several safety concerns
2020 Concept
Substation
CarrabassettSubstation
Retire Carrabassett Substation and feed existing load from North Anson
Asset condition with very low customer count
2020 Concept
Substation Modernization
Substation
Deer Rips Substation
Complete Rebuild of Deer Rips Substation
Asset condition, problems with joint ownership of facilities within hydro
2020 Concept
station
Dunstan Substation
Construction of a new Dunstan Substation at a new location
Asset condition, several safety concerns
2020 Concept
3939
LSP Projects – Substation Modernization
Project Origin
Major Project
Project Description
Needs Assessment
Projected In-Service
Date
Status
Date
East Wilton Substation
Construction of a new East Wilton Substation at a new location
Asset condition, reliability and safety concerns
2021 Concept
Substation Modernization
Fryeburg Substation
Construction of a new Fryeburg Substation at a new location
Asset condition, reliability concerns 2021 Concept
Asset conditionGreat Falls Substation
Complete Rebuild of Great Falls Substation
Asset condition, reliability and maintenance concerns
2021 Concept
North AnsonConstruction of a new North Anson Asset condition, North Anson
Substationnew North Anson Substation at a new location
several safety concerns
2022 Concept
4040
LSP Projects – Substation Modernization
Project Origin
Major Project
Project Description
Needs Assessment
Projected In-Service
Date
Status
Date
Substation
South Berwick Substation
Construction of a new South Berwick Substation at a
l ti
Asset condition, reliability and safety concerns
2022 Concept
Substation Modernization
new location
Warren Substation
Construction of a new Warren Substation at a new location
Asset condition, maintenance, reliability, and safety concerns
2022 Concept
4141
In-Service LSP Projects
Project Origin
Major Project
Project Description
Needs Assessment
In-Service Date Status
Customer Load Study & W t ill
Belgrade Source /
Install a 115/34 kV transformer and two 115 kV breakers at North
Reliability and voltage concerns on a very long 34.5 kV distribution circuit out of Rice Rips; need to 2014 I S iWaterville -
Winslow Area Reliability Study
Source / Hospital Feed
breakers at North Augusta with a new 34.5 kV distribution circuit into the Belgrade area.
of Rice Rips; need to bring in a new source to shift load. The addition of a new hospital is also driving these upgrades.
2014 In-Service
Portland NorthArea ReliabilityStudy
Line workRebuild portions of 34.5 kV line Section 188
Thermal violations under normal operating and contingent system conditions
2014 In-Service
These 34 5 kV lineMaintenance -Reliability Inspection
Line work Rebuild Section 48
These 34.5 kV line sections are in very poor condition and need to be rebuilt to improve reliability.
2014 In-Service
4242
2014 LSP Presentation
Central Maine Power Electric System Planning
Welcomes Your FeedbackWelcomes Your Feedback
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