Power utilities play a crucial role in maintaining the quality of electricity supply service for millions of consumers.
Two key indicators are responsible for measuring and controlling the quality of this supply.
These indices are used to assess the reliability and continuity of the electricity service.
Read to the end to understand how these indicators operate.
What are SAIDI and SAIFI?
SAIDI – System Average Interruption Duration Index: represents the average time, in hours, that each consumer was without electricity in a given period.
An increase in SAIDI indicates problems in the quality of service received by the consumer.
SAIFI – System Average Interruption Frequency Index: measures the average number of interruptions in the power supply that each consumer experienced.
Like SAIDI, a high SAIFI indicates the need for adjustments in the power service supply.
Why are these indices important?
Keeping SAIDI and SAIFI indices low is essential to avoid regulatory penalties and high costs with compensations.
In Brazil, the National Electric Energy Agency (ANEEL) imposes limits on these indicators, and utilities that exceed these limits may be required to financially compensate affected consumers.
Besides direct costs, high SAIDI and SAIFI indices can damage the utility’s reputation, leading to a loss of trust from consumers and investors.
Want to understand the details of how a power generator works? See here.
How can Tecnogera help?
Tecnogera offers innovative solutions that help utilities reduce SAIDI and SAIFI indices.
With a combination of advanced technologies, such as backup power generators and energy storage systems, our solutions ensure the continuity of power supply, even in emergency situations.
In various real case studies, we have helped utilities avoid significant costs with compensations by keeping the energy flowing reliably and continuously.
Our solutions not only ensure regulatory compliance but also contribute to consumer satisfaction and operational sustainability.
To learn the details and find out how Tecnogera can support utilities in supplying energy to consumers, contact our specialists.




