NERC Standard 200

1
NERC Standard 200 Operate Within Interconnected
Reliability Limits
IMO Position and Ballot Outcome
2
IMO Position on Ballot

• Standard 200 does not
• Require a Maximum Tv
• Tv Represents the maximum time the system should
  be exposed to a second contingency
• IMO suggests 30 Minutes maximum be retained
• Require Initiation of control actions ASAP for an
  IROL Violation
• Address the Dynamics of IROLs
• Adequately define the Wide Area impact adequately

3
Ballot Results
4
Ballot Results

• Standard 200 was Rejected
• 127 sets of Comments were submitted with the
  ballots
• Many agreeing with the IMO position
• https//www.nerc.net/standards/ballotResults.aspx?
  id3f23cdca-d2d4-4672-bc36-404c9054613b
• Next Steps for Standard
• Withdraw the Standard
• Recirculate the Standard (unchanged) for a second
  Ballot
• Return to drafting stage, revise based on
  balloting comments, circulate for comments