Regional Power System Planning
Richard V. Kowalski
Manager, Transmission Planning
ISO New England
New England’s Power System and
Wholesale Electricity Market
• 6.5 million electricity customers
• Population 14 million
• 350+ generating units
• 8,000+ miles of high voltage
transmission lines
• 12 interconnections with New Brunswick,
New York, and Quebec
• 31,000+ megawatts of generating capacity
• Peak load: 26,922 megawatts
(July 27, 2005)
400 miles
650 km
• 260+ participants in marketplace
• Trading Hub to facilitate transactions
• $7.25 billion total energy market
• Value; $1.9 billion transacted in
spot market
320 miles
520 km
Regional Power System Planning
© 2005 ISO New England Inc.
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Regional Planning Requirements
• ISO New England Open Access Transmission Tariff
• NPCC & Regional reliability requirements
• NERC Planning Standards
• 5-10 year Transmission Assessments and Solutions
required
• General reliability (& efficiency) issues addressed
through annual Regional System Plan
• Period updates of Transmission Project Listing
Regional Power System Planning
© 2005 ISO New England Inc.
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Overview of Regional System Plan
• Open Stakeholder Process
• Planning Criteria and Studies
– Amount and Location of Resources Needed
• Installed Capacity Analysis
• Operable Capacity Analysis
– Resource Operating Characteristics
• Fuel diversity
• Air emissions and renewable resource issues
• Quick-start resources (dependability of resources and consideration
of fuel infrastructure for generators)
– Transmission Planning Analyses
• System needs assessments
• Transmission solution development
– Interregional and Regional Planning Studies
• Northeast Power Coordinating Council
• Northeastern ISO/RTO Planning Coordination Protocol
Regional Power System Planning
© 2005 ISO New England Inc.
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ISO New England Planning Process
Regional Power System Planning
© 2005 ISO New England Inc.
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ISO New England Transmission
Planning Responsibilities
• Administer the ISO New England Open Access
Transmission Tariff
– Large/Small Generator Interconnection Procedures (All FERCjurisdictional facilities)
– Regional Network Service (RNS) & Local Network Service (LNS)
– Regional System Plan
• Supports RNS requirements - Regional networked facilities; a.k.a.
Pool Transmission Facilities – PTF
• Coordinates/Integrates LNS requirements – non-networked facilities
• ISO NE responsible for all PTF Transmission Planning
• ISO NE responsible for coordination/review of studies of
all changes that affect PTF (and Participants) - I.3.9
Regional Power System Planning
© 2005 ISO New England Inc.
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Transmission Owner Transmission
Planning Responsibilities
• “Transmission Owners” (may) have statutory
responsibilities to serve load (transmission service)
• Transmission Owners (& ISO NE via RTO) responsible
for LNS Transmission Service
• Other local requirements
• Transmission Owners are the asset owners
• Transmission Owners are responsible for transmission
facility construction and maintenance
Regional Power System Planning
© 2005 ISO New England Inc.
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New England Transmission Planning
Effort Integration and Coordination
• Regional System Plan integrates Transmission Owner
and ISO New England planning efforts
• ISO/TO successful study collaboration and coordination
• I.3.9 Review Process
• Regional transmission tariff structure encourages
significant regional stakeholder scrutiny and review
of studies, assumptions, transmission alternatives
and transmission solutions
Regional Power System Planning
© 2005 ISO New England Inc.
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Transmission Planning & Development
Process Overview
Business Processes
1
Assess System &
Identify Problems
2
Derive
Alternatives &
Propose
Solution
4
3
5
Engineer
& Pursue
Acceptance
Define
Project
Implement
Project
Develop & Maintain System Plan
Stakeholder Involvement
Planning Advisory Committee/NEPOOL Reliability Committee
ISO-NE
Endorsement
Project Status
Concept
Problem
Statement
Proposed
not
reviewed
approved to
proceed
I.3.9
Approval
TCA
Review
Planned
Project
‘In Service’
Implementation
in Progress
Regional Power System Planning
© 2005 ISO New England Inc.
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RSP05 – Vermont Areas of Concern
• Areas of immediate concern :
– Northwest Vermont
• Northwest Vermont Reliability Project
– Far Northern area
• Vermont Northern Loop
– Southern area
• Other concerns in more limited geographic areas:
–
–
–
–
–
–
Burlington area supply
Chelsea area reliability
Lamoille County area supply
Georgia/Milton area B
Bennington area 69 kV supply
Monadnock region
Regional Power System Planning
© 2005 ISO New England Inc.
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