IRO-008/009

Question 1

What is the intent of IRO 008 and 009?

Answer 1

008 - Need for RC’s to continuously determine likelihood of IROL violation

009 - Actions RCs must take to operate within those limits

Question 2

Typical time frame of “next day study”?

Answer 2

Tomorrow plus 6 days

Question 3

IRO 008

R1

Answer 3

RCs will perform operational planning analysis to asses for any next-day SOL or IROL violations in its area.

Question 4

IRO 008

R2

Answer 4

Each RC will have an operating plan for next-day operations to address any SOL /IROL violations identified.

Question 5

IRO 008

R3

Answer 5

The RC shall notify any entities impacted / identified in the operating plan as to their role.

Question 6

IRO 008
R4
How often must a real time assessment be performed?

Answer 6

Every 30 minutes

Question 7

IRO 008
R5
R6

Answer 7

Each RC shall notify impacted TO’s and BA’s, and other impacted RC’s when results of real-time analysis indicates an actual or potential SOL / IROL violation.

They must also be notified with the exceedance has been prevented or mitigated.

Question 8

IRO 009

R1

Answer 8

For each IROL violation identified for next day, RC shall have an operating process, procedure, plan identifying actions the RC will take (or direct others to take), to:

1. 1 prevent IROL exceedance
2. 2 mitigate magnitude and duration to relieve it within Tv

Question 9

IRO 009

R2

Answer 9

RCs should take action (not limited to OPs developed in R1) to mitigate an IROL violation identified in real time.

Question 10

IRO 009

R3

Answer 10

RC must act or direct others to act to mitigate IROL violation within Tv

Question 11

IRO 009

R4

Answer 11

Most limiting IROL and Tv values should be used in case of a discrepancy.

Question 12

Which of the following potential actions should be considered FIRST to ease transmission loading?

1. Curtail interchange transactions
2. Generation re-dispatch
3. Load shed
4. Reconfiguration of transmission system

Answer 12

2 and 4.