RTO Planning and Expansion

1
RTO Planning and Expansion

• Presentation to CREPC
• November 1, 2001
• Jeff Miller
• Regional Transmission Manager
• California ISO

2
If an RTO is Responsible for System Reliability,
it Must Have a Proactive Role in Planning

• Can be a coordinated process with the
  transmission owners
• A compliance mechanism is needed to ensure the
  PTOs construct needed facilities
• RTO should be primarily responsible for
  determining project need

3
RTO Should be Responsible for Developing
Economic Transmission Projects

• Economic benefits include increasing the
  resources available to constrained areas and
  mitigating market power
• California ISO is developing a methodology to
  assess economic benefits
• Third party investment in transmission should be
  encouraged, but not be relied upon

4
Grid Planning Seams Issues Have Not Been a
Problem for California to DateBut That Could
Change

• Very few large interstate projects are currently
  being planned so problems may not be apparent
• An unresolved issue is how to avoid having a
  negatively impacted state block a beneficial line
• WECC Detailed Proposal provides one means to
  address grid planning seams issues between RTOs

5
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