planning advisory committee meeting october 20, 2016 … · local system plan presentation october...
TRANSCRIPT
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Planning Advisory Committee Meeting
Local System PlanPresentation
October 20, 2016
www.cmpco.com 2
Purpose of Local System Plan
Per Attachment K – Local, this LSP presentation:
• Describes projected improvements to non-PTF that are needed to maintain reliable
customer service.
• Reflects:
• LSP Needs Assessments
• Corresponding 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
• PAC, Transmission Customers, and other Stakeholders
have 30 days to provide written comments for
consideration to CMP.
• CMP’s contact:
Chris Morin
Manager Electric System Planning
Central Maine Power Company
83 Edison Drive
Augusta, Maine 04336
(email: [email protected])
www.cmpco.com 4
LSP Communication cont.
• Each PTO is individually responsible for publicly posting and
updating the status of its respective 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:
• CMP’s LSP project list and Planning Manual are located at:
http://www.cmpco.com/SuppliersAndPartners/TransmissionServices/CMPTransmissionSvc/lsp.html
http://iso-ne.com/committees/comm_wkgrps/prtcpnts_comm/topac/mtrls/index.html
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CMP LSP Project List
Status Definition
Concept
Project is under consideration asa possible solution to a need, butlittle or no analysis is available
Proposed
CMP has determined that theproject is an appropriate solutionto a need, but has not yetobtained internal budgetapproval, or final regulatoryapproval
Planned
Budgetary and regulatoryapproval has been obtained
UnderConstruction
Project is approved and is underdesign/construction
In-Service Project is complete
• 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.
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CMP’s Local System Planning Process
• All CMP system upgrades are determined in accordance with Iberdrola USA ElectricSystem Planning Manual.
• Planning studies can result from:
Periodic Assessment of CMP’s Local Planning Areas
Load Growth
Retail or Wholesale Customer Request
Generator Interconnection Request
System-Wide Contingency Analysis
Public Policy Requirements
• 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 theCMP Transmission & Distribution Interconnection Requirements forGeneration.
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Berwick/Lebanon Area
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ProjectOrigin
MajorProject
ProjectDescription
NeedsAssessment
Projected
In-ServiceDate
Status
Berwick -Lebanon
Area Reliability
Study
BerwickSubstation
New 34/12 kV BerwickSubstation and 34.5 kVtransmission line toBassett (Section 116)
Load growth,inadequate 34/12 kVcapacity, overloadeddistribution circuits
Jan 2017Under
construction
South SanfordSubstation
Complete rebuild ofSouth SanfordSubstation
Load growth,inadequate 34/12 kVcapacity, overloadeddistribution circuits
May 2017
Underconstruction
LSP Projects – Berwick/Lebanon Area
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Brunswick/Topsham Area
Study Area
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LSP Projects – Brunswick/Topsham Area
ProjectOrigin
MajorProject
ProjectDescription
NeedsAssessment
Projected
In-ServiceDate
Status
Brunswick -Topsham AreaStudy
Line workRe-rate 34.5 kVSection 76
Overloaded undersingle elementcontingency conditions
2018 Planned
BrunswickHydroSubstation
Upgrade BrunswickHydro T2 34/12 kVtransformer
Overloaded undernormal operatingconditions
2018 Planned
WoolwichSubstation
Upgrade WoolwichT1 34/12 kVtransformer
Overloaded undernormal operatingconditions
2019 Proposed
TopshamSubstation
Upgrade TopshamT2 34/12 kVtransformer
Overloaded undernormal operatingconditions
2022 Proposed
Section 11Rebuild
Rebuild 34.5 kV linebetween Topsham115 kV and Bath115 KV
Overloaded undersingle elementcontingency conditions
2021 Proposed
Section 77Rebuild
Rebuild 34.5 kV linebetween Mason andBath 115 kV
Overloaded undersingle elementcontingency conditions
2021 Proposed
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LSP Projects – Brunswick/Topsham Area
ProjectOrigin
Major ProjectProject
DescriptionNeeds
Assessment
Projected
In-ServiceDate
Status
Brunswick –Topsham
Area Study
(Cont.)
Topsham 115 kVSubstation
Rebuild theTopsham Substationto a 115 kV sixbreaker ring busconfiguration.Upgrade Topsham115 kV T1 and T3115/34.5 kVtransformers
Voltage collapseconditions, T1 and T3overloaded undersingle elementcontingency conditions
2022 Proposed
Bath 115 kVSubstation
Add a 5.4 MVAR34.5 kV capacitorbank
Low voltage 2021 Proposed
DistributionBetterment
Cooks CornerSubstation
Rebuild the existingCooks CornerSubstation to a newgreen field location.
N-1 violations ofDistribution PlanningCriteria
2020 Concept
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Lakes Region Area
Study Area
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LSP Projects – Lakes Region Area
ProjectOrigin
MajorProject
ProjectDescription
NeedsAssessment
Projected
In-ServiceDate
Status
Lakes RegionArea
Reliability Study
Northern
Sub-AreaUpgrades
New (9.5 mile) 34.5kV line fromBridgton to KimballRoad (Section 98) Voltage collapse under
contingent systemconditions
Dec 2019 Planned
Install a 115/34.5 kV30/56 MVAtransformer atKimball Road
Dec 2019 Planned
Rebuild 34.5 kV lineSection 94
Thermal violationunder contingentsystem conditions
Dec 2019 Planned
Remove voltagesupervision for thereverse powerrelaying on Lovell T1
Back feeding NHunder post- contingentconditions createsvoltage and thermalviolations
Dec 2019 Planned
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ProjectOrigin
MajorProject
Project DescriptionNeeds
Assessment
Projected
In-ServiceDate
Status
Lakes RegionArea
Reliability Study
(Cont.)
Eastern
Sub-AreaUpgrades
New 115/34 kV S/S at NewGloucester with a fourbreaker ring bus and115/34 kV transformer and(8 mile) 115 kVtransmission line toSurowiec (Section 282)
Voltage collapse andthermal violationsunder contingentsystem conditions
Aug 2020 Proposed
Relocate Raymond 34 kVS/S and rename to WebbsMills S/S, install two 5.4MVAR capacitor banks
Room needed forexpansion
Jan 2020 Proposed
New (8 mile) 34.5 kV linefrom New Gloucester toWebbs Mills
Voltage collapse andthermal violationsunder contingentsystem conditions
Aug 2020Proposed
LSP Projects – Lakes Region Area
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ProjectOrigin
MajorProject
Project DescriptionNeeds
Assessment
Projected
In-ServiceDate
Status
Lakes RegionArea
Reliability Study
(Cont.)
Eastern Sub-AreaUpgrades
Shaw Mills SubstationUpgrades; two 5.4 MVARcapacitor banks and three34.5 kV breakers
Voltage violationsunder contingentsystem conditions
Mar 2018 Planned
Western Sub-AreaUpgrades
Two 34.5 kV breakers, two5.4 MVAR capacitor banksat the North LimingtonSubstation
Voltage collapseunder contingentsystem conditions
Oct 2018 Planned
Maintenance -ReliabilityInspection
New WaterfordSubstation
Add new WaterfordSubstation and 34.5 kVtransmission line toPapoose Pond
Section 78 needs tobe rebuilt due to itsasset condition.However, due to thehigh cost of a rebuild,it was decided toretire Section 78 andfeed Papoose Pondfrom a new WaterfordSubstation.
2020 Concept
LSP Projects – Lakes Region Area
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Lewiston/Auburn Area
Study Area
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LSP Projects – Lewiston/Auburn Area
Project OriginMajor
ProjectProject
DescriptionNeeds
Assessment
Projected
In-ServiceDate
Status
Lewiston -Auburn Area
Reliability Study
Line workChange protectionsettings on Section72
34.5 kV line overloadpost-contingency
2016 Planned
Line workReplace Section 148cable into GreatFalls Substation
34.5 kV line overloadpost-contingency
2016 Planned
Gulf IslandSubstation
Upgrade Gulf Island115/34.5 kV T4transformer
Transformeroverloaded with loadgrowth, coordinate withMPRP reinforcements
2020 Cancelled
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Midcoast Area NTA
Study Area
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LSP Projects – Midcoast Area NTA
ProjectOrigin
MajorProject
ProjectDescription
NeedsAssessment
Projected
In-ServiceDate
Status
Midcoast AreaNTA Analysis
(the Camden -Rockland
Area Reliability
Study)
Line Work
Add 1 mile 34.5 kVline to separateSection 51 (Warren –Waldoboro)
Voltage and thermalviolations undercontingent systemconditions
2019Proposed – pending
NTA analysis
Midcoast AreaNTA Analysis
BoothbayUpgrades
Add a 2.7 MVARcapacitor bank atBoothbay
Low voltage Jun 2017 Planned
Line WorkRebuild 34.5 kVSection 23
Voltage violationsunder contingentsystem conditions
2020 Cancelled
NewcastleSubstationUpgrades
Construct a 4-breaker115 kV ring bus andinstall a 34.5 kV bus-tie breaker. Alsorelocate Section 18onto bus 3
Voltage collapse undercontingent systemconditions
May 2018 Planned
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Portland Area NTA
Study Area
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Projects – Portland Area NTA
Project OriginMajor
ProjectProject
DescriptionNeeds
Assessment
Projected
In-ServiceDate
Status
Portland
Area NTAAnalysis
Raven FarmExpansion(115/34.5 kV)
New 115 kV bus withfour breaker,breaker-and-a-halfconfiguration. Also,install a 115/34 kVtransformer and 34.5kV line to Elm Street
Voltage collapsethermal violationsunder contingentsystem conditions 2021
Concept– pendingNTA analysis
Line work
Rebuild 34.5 kVSection 181
Overloaded undersingle elementcontingency conditions 2021
Concept– pendingNTA analysis
Rebuild a portion of34.5 kV Section 180
Overloaded undersingle elementcontingency conditions
2021 Concept
Red BrookUpgrade Red Brook115/34.5 kV T1 to a30/56 MVA
Transformeroverloaded undercontingent systemconditions
2021Concept– pending
NTA analysis
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Portland North Area
Study Area
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LSP Projects – Portland North Area
ProjectOrigin
MajorProject
ProjectDescription
NeedsAssessment
Projected
In-ServiceDate
Status
Portland North
Area Reliability
Study
Line workRe-rate/rebuildportions of 34kV lineSection 180A
Thermal violationsunder normaloperating andcontingent systemconditions
2021Concept – pending
NTA analysis
FreeportSubstation
Add two 2.7 MVARcapacitor banks
Voltage violationsunder contingentsystem conditions
2021Concept –pending
NTA analysis
Bishop Street
Substation
Add a 5.4 MVARcapacitor bank
Voltage violationsunder contingentsystem conditions
May 2017 Planned
Elm Street
Substation
Bring S164 in/out ofElm St, re-rateS164A
Thermal violationsunder contingentsystem conditions
(Not needed if RavenFarms 115 kV is built)
2021Concept –pending
NTA analysis
Prides Corner
Substation
Add an additional 5.4MVAR 34.5 kVcapacitor bank
Voltage violationsunder contingentsystem conditions
2021Concept – pendingNTA analysis
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LSP Projects – Portland North Area
ProjectOrigin
MajorProject
ProjectDescription
Needs AssessmentProjectedIn-Service
DateStatus
Portland North
Area Reliability
Study
(Cont.)
Line work Rebuild Section 103
Overloaded undernormal operating and/orsingle elementcontingency conditions
2018Proposed – pendingLakes Region AreaReliability Study results
FalmouthSubstation
Add two 34.5 kVbreakers
Voltage and 25 MWloss of load criteriaviolations undercontingent system
2021Concept –pending NTAanalysis
Swett Rd.
Substation
Add two 34.5 kVbreakers and add 5.4MVAR 34.5 kVcapacitor bank
Low Voltages in thelocal area under singleelement contingencies
2018Proposed – pendingLakes Region AreaReliability Study results
East DeeringSubstation
115-34 kV substationwith 115 kV line fromRaven Farm.
Voltage collapse,additional sourceneeded in the area
2021
Concept – pendingNTA analysis
NorthYarmouthSubstation
New 115/34kV S/Stapped from Sect. 166,and 14.8 mi 34.5 kVline to Gray & Freeportwith breakers
Voltage violations undercontingent systemconditions 2020
Concept – pendingNTA analysis
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Waterville/Winslow Area
Study Area
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LSP Projects – Waterville/Winslow Area
Project OriginMajor
ProjectProject
DescriptionNeeds
Assessment
Projected
In-ServiceDate
Status
Waterville -Winslow AreaReliability Study
County RoadSubstation
Bring Section 241in/out of new CountyRoad S/S byconstructing 7 milesof new 115 kVTransmission.Construct a 4-breaker ring bus witha second 115/34 kVtransformer. Theexisting Rice RipsSubstation will bereplaced.
Voltage collapse andthermal violationsunder contingentsystem conditions
Jul 2020Planned
Line workRe-conductor aportion of 34.5 kVline Section 56.
Overloaded undersingle elementcontingency conditions
2019 Planned
Maintenance -ReliabilityInspection
South ChinaSubstation
Upgrade SouthChina T1
Overloaded undernormal operatingconditions
Jan 2017 Under Construction
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LSP Projects – Other
ProjectOrigin
MajorProject
ProjectDescription
Needs Assessment
Projected
In-ServiceDate
Status
Maintenance -ReliabilityInspection
Line work Rebuild Section 187
This 34.5 kV linesection is in very poorcondition and needs tobe rebuilt to improvereliability.
May 2018 Planned
Maintenance -ReliabilityInspection Line work
Rebuild RiverCrossing of Section77/207 doublecircuit towers
Towers are in poorcondition and need tobe rebuilt to improvereliability
May 2018 Planned
Upper KennebecArea ReliabilityStudy
Moxie FallsSubstation
New Moxie Falls115/34.5 kVSubstation
Inadequate voltageregulation, low voltageviolations during alllines in conditions
2021 Concept
Maintenance -ReliabilityInspection Spring Street
Replace 5-34.5 kVbreakers, newcontrol house andrelay upgrades
Aging oil filled breakersbeing replaced withnew SF-6 units 2020 Concept
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LSP Projects – Asset Condition
ProjectOrigin
MajorProject
ProjectDescription
NeedsAssessment
Projected
In-ServiceDate
Status
SubstationModernization
Forest Ave
Construction of anew Forest AveSubstation at thesame location
Asset condition,maintenance,reliability, and safetyconcerns
2020 Proposed
SearsportSubstation
Construction of anew SearsportSubstation and re-rate of Sections 20and 26
Asset condition,reliability and safetyconcerns
Dec 2017 Planned
DunstanSubstation
Construction of anew DunstanSubstation at a newlocation
Asset condition,several safetyconcerns
2020 Proposed
South BerwickSubstation
Construction of anew South BerwickSubstation at a newlocation
Asset condition,reliability and safetyconcerns
2020 Proposed
WarrenSubstation
Construction of anew WarrenSubstation at a newlocation
Asset condition,maintenance,reliability, and safetyconcerns
2020 Proposed
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LSP Projects – Asset Condition
ProjectOrigin
MajorProject
ProjectDescription
NeedsAssessment
Projected
In-ServiceDate
Status
SubstationModernization
East WiltonSubstation
Construction of anew East WiltonSubstation at a newlocation
Asset condition,reliability and safetyconcerns
2020 Proposed
FryeburgSubstation
Construction of anew FryeburgSubstation at a newlocation
Asset condition,reliability concerns
2024 Concept
Great FallsSubstation
Complete Rebuild ofGreat FallsSubstation
Asset condition,reliability andmaintenance concerns
2024 Concept
North AnsonSubstation
Construction of anew North AnsonSubstation at a newlocation
Asset condition,several safetyconcerns
2025 Concept
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LSP Projects – Asset Condition
ProjectOrigin
MajorProject
ProjectDescription
NeedsAssessment
Projected
In-ServiceDate
Status
SubstationModernization
Butlers CornerSubstation
Construction of anew Butlers CornerSubstation at a newlocation
Asset condition,several safetyconcerns
2023 Concept
Deer RipsSubstation
Complete Rebuild ofDeer RipsSubstation
Asset condition,problems with jointownership of facilitieswithin hydro station
2023 Concept
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In-Service LSP Projects
Project OriginMajor
ProjectProject
DescriptionNeeds
AssessmentIn-Service
DateStatus
Midcoast AreaNTA Analysis Mason
UpgradesRelay Modifications onSection 25 at Mason
34.5 kV line overloadpost-contingency
2016In-Service
Maintenance -ReliabilityInspection
BristolSubstation
Upgrade Bristol T1Overloaded undernormal operatingconditions
2016In-Service
Berwick -Lebanon
Area Reliability
Study
New LebanonSubstation
Add new LebanonSubstation and 34.5 kVtransmission line toButler’s Corner(Section 185A)
Load growth inLebanon area willexceed area capacity
2016In-Service
SubstationModernization
Carrabassett
Substation
Retire CarrabassettSubstation and feedexisting load fromNorth AnsonSubstation
Asset condition withvery low customercount
2014 In-Service
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2015 LSP PresentationCentral Maine Power’s
Electric System Planning
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