Key Performance Indicators

Key Performance Indicator for Reliability of Power Supply

The System Average Interruption Duration Index (SAIDI) and the System Average Interruption Frequency Index (SAIFI) provide data from the perspective of an average customer over a calendar year and focus, respectively, on total outage duration and frequency.

Measuring SAIDI and SAIFI data is identified as a good practice by the Institute of Electrical and Electronics Engineers (IEEE) and allow utilities to compare their network reliability internationally (over two-thirds of economies worldwide use these metrics)

Energy Fiji Limited is committed to improving the reliability of power supply and preventing power interruptions through a continuous monitoring of its SAIDI and SAIFI indices, in line with best international practices.

The table below shows the controllable SAIDI and SAIFI figures recorded for the period 2012 to 2019.

 

Units

2012

2013

2014

2015

2016

2017

2018

2019

SAIDI (Controllable)

Minutes per customer

666

511

490

412

448

242

300

241

SAIFI  (Controllable)

No. of outages per customer

9

11

8

5

6

3

4.74

5.26

 

SAIDI = total duration of interruptions

                   Number of all customers

 

SAIFI =    total number of interruptions

                    Number of all customers