Path Rating Catalog 2013 - Western Electricity Coordinating Council

II-5. Path 45 Uprate Project
Revised January 2010
Accepted Rating
Existing Rating
Other
Location:
San Diego County - Baja California Norte (Mexico)
Definition: Tijuana Interconnection Metered End
Tijuana I-Otay Mesa
Tijuana I
La Rosita Interconnection
Metered End
La Rosita-Imperial Valley
La Rosita
Transfer Limit: North to South: 408 MW (Planned Uprate is 600 MW N-S)
South to North: 800 MW per letters from PCC Chairman to PCC, OC, and
TSS dated July 17, 2003, and from SDGE to PCC, OC, TSS, CMOPS and
TOC dated June 11, 2003).
Critical
Disturbance
that limits the
transfer
capability:
When:
System
Conditions:
Study Criteria:
Remedial
Actions
Required:
Formal
Operating
Procedure:
Allocation:
The South to North path is collectively rated 800 MW to allow for loss of
Imperial Valley-Miguel 500 kV line without overloading the Otay Mesa-
Tijuana 230kV line.
Note that the North to South rating has not been changed and was established
based on the old thermal rating of the La Rosita-Imperial Valley 230 kV line,
which was 408 MW. (In Phase II, CFE is trying to increase this transfer
capability, for non-simultaneous flows the critical disturbance is the La
Rosita-Imperial Valley 230 kV for post-transient analysis.)
The North to South ratings given above are used under all pre-contingency
system conditions. The thermal ratings were established based on heavy load
conditions.
The South to North ratings given above were established based on winter and
summer conditions, respectively, and maximum available generation in the
CFE system.
WECC, SDGE and CFE
None required at this time.
None
SDGE owns the lines and associated facilities in the United States, and CFE
owns and operates the lines and associated facilities in Mexico. The
California ISO exercises operational control of the lines and associated
facilities in the United States.
PART VI Item 1-264