KPI / RELIABILITY OF SUPPLY
Ensuring Reliability of Supply
We are dedicated to enhancing the reliability of power supply and minimising power interruptions. This commitment is supported by the continuous monitoring of SAIDI, SAIFI, and CAIDI indices, aligned with best international practices.
Presented below are the SAIDI*, SAIFI**, and CAIDI figures for the past five years (2020–2024), reflecting ongoing efforts to maintain and improve service reliability.
Table below shows the SAIDI and SAIFI Figures for Period 2020 to 2024
| Parameters | Units | Areas | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|
| SAIDI * | Hours | North | 2.58 | 4.05 | 3.16 | 2.94 | 3.32 |
| Centre | 2.49 | 2.38 | 2.62 | 3.71 | 4.25 | ||
| South | 3.31 | 2.91 | 3.29 | 3.38 | 4.44 | ||
| SAIFI ** | Index | North | 1.33 | 1.71 | 1.29 | 1.19 | 1.03 |
| Centre | 1.48 | 1.62 | 1.62 | 2.06 | 2.35 | ||
| South | 2.36 | 2.35 | 2.56 | 1.63 | 2.03 |
*SAIDI: System Average Interruption Duration Index – the average duration of electricity interruptions experienced by a customer over a given period.
**SAIFI: System Average Interruption Frequency Index – the average number of interruptions a customer has experienced over a given period.
Table below shows the CAIDI Figures for Period 2020 to 2024
| Parameters | Units | Areas | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|
| CAIDI = SAIDI/SAIFI *** | Hours | North | 1.94 | 2.37 | 2.45 | 2.46 | 3.22 |
| Centre | 1.68 | 1.47 | 1.62 | 1.80 | 1.81 | ||
| South | 1.41 | 1.24 | 1.29 | 2.07 | 2.19 |
Table below shows the Indices for Port Louis Region only
| Index | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 |
|---|---|---|---|---|---|---|
| SAIDI (HRS/CUSTOMER/YEAR) | 1.61 | 1.61 | 1.11 | 1.51 | 2.40 | 2.49 |
| SAIFI (INTERRUPTIONS/YEAR) | 0.65 | 0.85 | 0.53 | 0.54 | 0.96 | 1.00 |
| CAIDI (hrs) | 2.48 | 1.89 | 2.10 | 2.79 | 2.50 | 2.49 |