We deem a force majeure to have occurred when the daily SAIDI/SAIFI exceeds the 2.5 Beta threshold based on the Institute of Electrical and Electronics Engineers standard.
Hydro One recommends that the distributor’s own historical performance, a five year rolling average, be used in establishing performance targets for SAIDI and SAIFI.
Improving SAIDI and SAIFI: strategies for distribution system …
Mar 12, 2025 · SAIDI and SAIFI are critical for regulatory compliance, operational efficiency, and customer satisfaction. High values indicate frequent and/or prolonged outages, which can …
Hydro One is uniquely positioned: serves every LDC in the province through Transmission (Tx) delivery points or Distribution (Dx) supply points. Many LDCs are embedded in Hydro One’s …
Rethinking SAIDI and SAIFI: How Utilities Can Turn Metrics Into …
Jun 2, 2025 · At their core, SAIDI (System Average Interruption Duration Index) and SAIFI (System Average Interruption Frequency Index) were designed to measure the reliability of …
Navigating The Modern Grid: A Deep Dive Into Utilities’ Reliability ...
In this article we’ll take a look at four key metrics that utilities use to measure the reliability of electric systems: SAIDI, SAIFI, CAIDI and MAIFI. Let’s see what these metrics mean and why …
We address all indicators in the standard that we consider to be material for our business and are legally able to report on as an Ontario-based utility. All information is for Hydro One Limited …
Hydro One Networks believes that given the scope and nature of operations of its distribution system it is appropriate for it to report on the reliability indices (e.g. SAIDI, SAIFI, CAIDI) with …
2017 Year End Overall Transmission Performance: SAIDI was 42.8 min and SAIFI was 1.1 interruptions per customer delivery point. Main causes of these interruptions are 1) Weather 2) …
Peterborough Delivery Rates | Hydro One
Learn more about delivery rates for Hydro One customers in Peterborough, who were previously served by Peterborough Distribution Inc.