Power System Reliability Program


The Power System Reliability Program provides a blueprint for ensuring continued reliable energy service for future generations of Los Angeles residents. LADWP implemented the Power System Reliability Program through a two-pronged approach—rebuilding infrastructure and proactive maintenance—and will invest more than $1 billion in the program over the next 5 to 15 years. The program is funded through a power reliability surcharge.

The goals of the program include:

  • Reducing Temporary Circuits
  • Replacing Distribution Transformers, Poles, Underground Cables, and Substructures
  • Reducing Frequency and Duration of System Interruptions
The table and graphs below detail the progress of the Power System Reliability Program.

Power System Reliability Program (PSRP) Activity Update as of May 29, 2017

Key Performance Indicators Units 15-16 Final Current Count FY 16-17 June 30, 2017 16-17 Target
System Average Interruption Frequency Index (SAIFI) Outages / year 0.91 0.97 0.68
System Average Interruption Duration Index (SAIDI) Minutes out / year 125.31 165.99 85.00
 
Priority A Circuits carrying extra load due to failed components Circuits 35 64 -
Priority B Circuits that have failed components   50 77 -
Priority C Circuits carrying extra load due to field work   50 66 -
Not yet prioritized   0 3 -
Abnormal & Temporary 4.8KV Circuit Backlog - Total of Priority A & B Only   85 141 70
 
PSRP Poles Replaced Poles 1634 2301 2500
 
PSRP Substructures Replaced and Repaired Vaults 8 9 12
 
PSRP Distribution Transformers Replaced Transformers 780 834 700
 
Underground Transmission Cables replaced Cables 1 In Design 1 Cable
 
Length of PSRP underground cables Replaced Miles 33.0 27.4 48.0

 
 
 
 
 
 
 
NOTE: Starting with FY 13-14 the page has been redesigned to provide more clarity of the PSRP items being completed.