Marcus Hutter

The System Average Interruption Duration Index (SAIDI) is commonly used as a reliability indicator by electric power utilities. SAIDI is the average outage duration for each customer served, and is calculated as:

$\text{SAIDI}=\frac{\sum U_i{N}_i}{\sum N_i}$

where $N_i$ is the number of customers and $U_i$ is the annual outage time for location $i$. In other words,

$\text{SAIDI}=\frac{\text{sum of all customer interruption durations}}{\text{total number of customers served}}$

SAIDI is measured in units of time, often minutes or hours. It is usually measured over the course of a year, and according to IEEE Standard 1366-1998 the median value for North American utilities is approximately 1.50 hours.

See also

• SAIFI
• CAIDI
• CAIFI
• MAIFI
• ASAI
• ASUI

References

43 year old Petroleum Engineer Harry from Deep River, usually spends time with hobbies and interests like renting movies, property developers in singapore new condominium and vehicle racing. Constantly enjoys going to destinations like Camino Real de Tierra Adentro.