1. WECC-0118 Removal of Interchange Authority
W. Shannon Black
WECC Consultant
Western Electricity Coordinating Council

2. Western Electricity Coordinating Council
What does the SAR Say?
Modify INT-020-WECC-CRT-1.1 “IA”
Retire the impacted Requirements;
Either
Extract the affected Requirements (WITFR?), or;
Retain the Requirements and reassign to a more appropriate Functional Entity
Western Electricity Coordinating Council

3. Western Electricity Coordinating Council
What does the INT Say?
INT-020-WECC-CRT-1.1 Requires the Interchange Authority to:
Monitor real-time operational status of the IA software. (WR1);
Report confirmed failure of IA software (WR7); and,
Report confirmed restoration of IA software (WR17).
Western Electricity Coordinating Council

4. Western Electricity Coordinating Council
Why is this an Issue?
No one is accountable
No one is registered as the Interchange Authority (IA)
No one is registered as the Interchange Coordinator (IC)
The tasks are generally performed by software – not people
Compliance Registry and Functional Model
FERC eliminated the IA from the compliance registry
NERC eliminated IA from the Functional Model in favor of the IC
WECC can only use Applicable Entities from the Functional Model
Western Electricity Coordinating Council

5. Remedies: Retire or Modify
Move the tasks to a more appropriate document such as the WIT Functional Requirements document.
In , as part of the INT Redraft Project, numerous tasks were identified as dealing primarily “with the requirements of the software application; and recommended that the references to the software requirements be transferred to a technical document which would address the requirements of the WIT software.” WIT FR, History.
The purpose of the WIT FR is to outline “functional requirements of the WECC Interchange Tool, a software application.”
Western Electricity Coordinating Council

6. Remedies: Retire or Modify
Assign to the Interchange Coordinator?
No one is registered as the IC
Ask compliance to force register
Not for use in Drafting
IC “is” used in NERC CIPs
Used in the context of “Responsible Entities” without taking into account that no on is responsible/registered
Like Reliability Assurer, Standards Developer, Compliance Enforcement Authority
They are in the Model but not used for drafting
Western Electricity Coordinating Council

7. Remedies: Retire or Modify
Assign to the Balancing Authority?
“The IC tasks are being performed…specifically [by] the “sink BA.”
Use of the IC in the FM was forward-looking
The FM could have eliminated the IC altogether but “envisioned in the future that the IC Tasks could be performed by entities other than a BA.”
“The [FM] accommodates the sink BA as the IC, but does not require it.” Functional Model (FM) Technical Paper, Section 9, Implementing the Interchange Coordinator.
Western Electricity Coordinating Council

8. Remedies: Retire or Modify
Remove/Retire/Extract
Move the tasks to another document?
The WITFR is specifically designed to contain software functionality for the interchange transactions
The DT “cannot” modify the WITFR
But can recommend changes to the owner
The Electric Scheduling Work Group
Western Electricity Coordinating Council

9. Western Electricity Coordinating Council
Direction Forward?
Modify
Assign to IA or IC = Non-starter
Assign to the BA
Assign to ??
Retire
Move the tasks to….?
Likely Remedies: Move software tasks to the WITFR or assign tasks to the BA
Western Electricity Coordinating Council