1. Western Electricity Coordinating Council
POITF Update February 14, 2017
Western Electricity Coordinating Council

2. Western Electricity Coordinating Council
Webinar Objectives
Provide industry update
Summarize Path requirement post April 1, 2017
Request input from current Path Operator on each of Path Operator’s plan to implement the new paradigm
Western Electricity Coordinating Council

3. Industry Update
Peak RC SOL Methodology v8.0 was published on January 13, 2017
SOL methodology workshops were completed in Portland, Denver, San Diego, and Folsom
TOP-007-WECC-1 retirement is pending FERC approval

4. Summary of Path Requirements
Until FERC approves retirement of TOP-007-WECC-1, no change will impact the 40 paths classified as “Major WECC Transfer Paths”
All current requirements still apply
No changes in the WECC UFMP

5. Summary of Path Requirements (For Non TOP-007-WECC-1 Path)
Seasonal studies are required to be performed to identify if there is a stability limitation associated with the path
If there is no stability limitation associated with the path, then there is no uniquely monitored Path SOL
If there is a stability limitation associated with the path, then there is uniquely monitored Path SOL

6. Summary of Path Requirements (For Non TOP-007-WECC-1 Path)
If the Path is utilized for scheduling purposes (i.e. the Path is ATC Path by NERC definition), then Path TTC needs to be established to respect SOLs.
If the path is not associated with a stability limitation, then TTC should be set to respect Facility Ratings and voltage limits in both pre- and post- contingency state
If the path is associated with a stability limitation, then TTC should be set to respect the monitored Path stability SOL as well as Facility Ratings and voltage limits in both pre- and post- contingency state

7. Summary of Path Requirements
Peak RC IRO-010 Data request version 11 was published December The following requirements apply to all Paths:
R1.5 Path actual MW, Scheduled MW, and TTC should be sent to Peak RC via ICCP (10 sec update)
R4.4 Path Procedure should be uploaded to Peak secure site
Peak RC COS Outage Manual was published January The following requirements apply to all Path:
Section 1.1 The responsible TOP will be expected to submit any known reduction of a WECC Path TTC due to a generation or transmission outage. The information required include: TTC MW, Limitation type (Stability/Thermal/Voltage), Limiting Contingency, Monitored element, etc.

8. Summary of Path Requirements
TOP-007-WECC-1 Path ?
No change until FERC approval for retirement of TOP-007-WECC-1
Yes No
Does the Path have a stability limitation?
Establish a uniquely monitored Path SOL
Monitor Path flow against Path SOL
Yes No
No uniquely monitored Path SOL
Communicate Path SOL and/or TTC to
Peak RC
Is the Path considered ATC Path?
Establish Path TTC that respect all SOLs
Yes No
Monitor All SOL exceedance
TTC not required

9. Summary of Path Requirements (Post TOP-007-WECC-1 retirement)
TOP-007-WECC-1 Path ?
No change until FERC approval for retirement of TOP-007-WECC-1
Yes No
Does the Path have a stability limitation?
Establish a uniquely monitored Path SOL
Monitor Path flow against Path SOL
Yes No
No uniquely monitored Path SOL
Communicate Path SOL and/or TTC to
Peak RC
Is the Path considered ATC Path?
Establish Path TTC that respect all SOLs
Yes No
Monitor All SOL exceedance
TTC not required

10. Roundtable Discussion – requesting input from Path Operators