Why is the RC purview so broad? (2)
- Reliability of the wide-area takes precedence over a single local area.
- It must be able to calculate Interconnection Reliability Limits that involves system and facility operating parameters beyond its own area and within its area.
In what way is the Transmission Operator differ with RC with respect to operating areas?
The TO is only concern with its operating area.
How and when can the RC assist the TO? (2)
- The RC can relieve operating equipment or facility overloads through transmission relief measures IF
- Market based dispatch procedures were not adequate.
Can the RC approve or deny tags?
Can the RC receive tags?
- No and No.
Can RC curtail tags?
Yes. 2. RC may curtail Interchange transactions until they are arranged and ready for implementation as Interchange Schedules.
What does the RC’s Transmission loading relief requests be used to accomplished?
Transmission loading requests can reduce, remove, or halt flows or impending interchange transactions.
The RC receives what from the BAs?
Dispatch plans
What does the RC receive from Generators Operators and transmission operators?
Generation and Transmission maintenance schedules.
The RC can deny what?
Outage requests.
Who is usually responsible for reliability of local transmission systems? (2)
The Transmission Operator. However, the RC may issue a dispatch adjustment if aware of a potential SOL violation.
The RC can do what during Real Time system reliability emergencies: (4)
- Curtail Interchange Schedules.
2) Direct redispatch to alleviate congestion.
3) Ensure energy balance and Interconnection frequency.
4) Directing load shedding.
If the BA cannot achieve resource demand balance, the RC may: (4)
- Invoke public appeals.
- Demand-side management
- Direct Load Shedding.
- Voltage reduction
Who is responsible for reliability of local transmission system in accordance with SOLs?
Transmission Operator.
What is SOL?
System Operating Limits
What can the Reliability Coordinator do if becomes aware of a potential SOL violation?
Issue a dispatch adjustment.
Who is responsible for real-time system reliability?
The RC.
What can the RC do to maintain real-time system reliability? (5)
- Curtail Interchange Schedules.
- Direct redispatch to alleviate congestion.
- Mitigate energy and transmission emergencies.
- Ensure energy balance and Interconnection frequency.
- Direct Load Shedding.
In emergencies and in collaboration with the BAs and TO, the RC can: (4)
- Invoke public appeals
- Voltage reductions.
- demand-side management
- load shedding if BA cannot achieve resource-demand balance.
RC can direct and coordinate system restoration with who?
TO and BAs.
