Balancing Authority ACE Limit Proof-of-Concept Field Trial Project 2010-14 Eastern Interconnection Update Discussion August 30, 2011 DISCUSSION STARTING AT 2:30 PM EDT Bob Klueber – Midwest ISO Balancing Authority Reliability-based Control Standard Drafting Team (BARCSDT)
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Balancing Authority ACE Limit
Proof-of-Concept Field TrialProject 2010-14
Eastern Interconnection Update Discussion
August 30, 2011
DISCUSSION STARTING AT 2:30 PM EDT
Bob Klueber – Midwest ISO
Balancing Authority Reliability-based Control Standard Drafting Team (BARCSDT)
Balancing Authority ACE Limit
Proof-of-Concept Field Trial
Eastern Interconnection Field Trial ParticipationParticipation reflects approximately 67% of the projected 2010 peak load for the Eastern Interconnection
The Balancing Authority ACE Limit (BAAL) shall not be
exceeded for more than 30 consecutive clock-minutes*
MinCtLow = Count of
consecutive clock-
minutes BAALLow was
exceeded
MinCtHigh = Count of
consecutive clock-
minutes BAALHigh was
exceeded
Balancing Authority ACE Limit
Proof-of-Concept Field Trial
*BAAL being exceeded for more than 30 consecutive clock-minutes would be a violation under the proposed BAL-007 standard.
**
Frequency Statistics Eastern Interconnection
Frequency Statistics Eastern Interconnection
Frequency Statistics- Low Eastern Interconnection
Frequency Statistics- High Eastern Interconnection
This chart illustrates the monthly total minutes of FTLLow being
exceeded
**
**March 2007- change
to the new Daylight
Saving Time.
Eastern Interconnection
This chart illustrates the monthly total minutes of
FTLLow plus FTLHigh being exceeded.**
**March 2007- change to
the new Daylight Saving
Time.
Eastern Interconnection
All durations of the BAAL being
exceeded for more than 15 consecutive
clock-minutes noted on left.
Periods of the FTL being exceeded for
3 consecutive clock minutes or more:
All durations of the BAAL being
exceeded for more than 15 consecutive
clock-minutes noted on left.
All durations of the BAAL being
exceeded for more than 15 consecutive
clock-minutes noted on left.
All durations of the BAAL being
exceeded for more than 15 consecutive
clock-minutes noted on left.
Dates In This Presentation
EXAMPLE 1
Clock-minute Actual Frequency of Participants
07/19/2011 ending 06:57 EDT
3-minute duration above FTLHigh
BAAL
Adjusted CPS1 of
individual BAs under the
Field Trial
-571.6
07/19/2011 ending 06:57 EDT
3-minute duration above FTLHigh
BAAL shall not be exceeded for more
than 30 consecutive clock-minutes*
*BAAL being exceeded for more than 30 consecutive clock-
minutes would be a violation under the proposed standard.
BAAL Violation*
07/19/2011 ending 06:57 EDT
3-minute duration above FTLHigh
EXAMPLE 2
Clock-minute Actual Frequency of Participants
07/30/2011 ending 09:44 EDT
3-minute duration below FTLLow
BAAL
Adjusted CPS1 of
individual BAs under the
Field Trial
07/30/2011 ending 09:44 EDT
3-minute duration below FTLLow
-571.6
BAAL shall not be exceeded for more
than 30 consecutive clock-minutes*
BAAL Violation*
*BAAL being exceeded for more than 30 consecutive clock-
minutes would be a violation under the proposed standard.
07/30/2011 ending 09:44 EDT
3-minute duration below FTLLow
EXAMPLE 3
Clock-minute Actual Frequency of Participants
07/02/2011 ending 09:49 CDT
21-minute duration below BAALLow
07/02/2011 ending 10:19 CDT
19-minute duration below BAALLow
07/02/2011 ending 10:37 EST
19-minute duration below BAALLow
BAAL
Adjusted CPS1 of
individual BAs under the
Field Trial
07/02/2011 ending 09:49 CDT
21-minute duration below BAALLow
07/02/2011 ending 10:19 CDT
19-minute duration below BAALLow
07/02/2011 ending 10:37 EST
19-minute duration below BAALLow
BAAL shall not be exceeded for more
than 30 consecutive clock-minutes*
*BAAL being exceeded for more than 30 consecutive clock-
minutes would be a violation under the proposed standard.
BAAL Violation*
07/02/2011 ending 09:49 CDT
21-minute duration below BAALLow
07/02/2011 ending 10:19 CDT
19-minute duration below BAALLow
07/02/2011 ending 10:37 EST
19-minute duration below BAALLow
EXAMPLE 4
Clock-minute Actual Frequency of Participants
07/04/2011 ending 10:32 CDT
23-minute duration below BAALLow
07/04/2011 ending 10:32 EST
20-minute duration below BAALLow
BAAL
Adjusted CPS1 of
individual BAs under
the Field Trial
07/04/2011 ending 10:32 CDT
23-minute duration below BAALLow
07/04/2011 ending 10:32 EST
20-minute duration below BAALLow
BAAL shall not be exceeded for more
than 30 consecutive clock-minutes*
*BAAL being exceeded for more than 30 consecutive clock-
minutes would be a violation under the proposed standard.
BAAL Violation*
07/04/2011 ending 10:32 CDT
23-minute duration below BAALLow
07/04/2011 ending 10:32 EST
20-minute duration below BAALLow
EXAMPLE 5
Clock-minute Actual Frequency of Participants
07/09/2011 ending 21:54 EST
20-minute duration above BAALHigh60.02 Scheduled Frequency TEC
BAAL
Adjusted CPS1 of
individual BAs under the
Field Trial
07/09/2011 ending 21:54 EST
20-minute duration above BAALHigh60.02 Scheduled Frequency TEC
BAAL shall not be exceeded for more
than 30 consecutive clock-minutes*
*BAAL being exceeded for more than 30 consecutive clock-
minutes would be a violation under the proposed standard.
BAAL Violation*
07/09/2011 ending 21:54 EST
20-minute duration above BAALHigh60.02 Scheduled Frequency TEC
Examples of circumstances when BAAL was
exceeded and actions taken if appropriate
Balancing Authority ACE Limit
Proof-of-Concept Field Trial
Examples of circumstances when BAAL was
exceeded and actions taken if appropriate
Balancing Authority ACE Limit
Proof-of-Concept Field Trial
Examples of circumstances when BAAL was
exceeded and actions taken if appropriate
Balancing Authority ACE Limit
Proof-of-Concept Field Trial
Examples of circumstances when BAAL was
exceeded and actions taken if appropriate
Balancing Authority ACE Limit
Proof-of-Concept Field Trial
Examples of circumstances when BAAL was
exceeded and actions taken if appropriate
Balancing Authority ACE Limit
Proof-of-Concept Field Trial
Balancing Authority ACE Limit Proof-of-Concept Field Trial
Discussion
Bob Klueber
Balancing Authority Reliability-based Control Standard Drafting Team (BARCSDT)
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