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Commission debates reliability metrics after windstorm left 33,000 customers without power
Summary
Staff reviewed reliability indices and a January wind event that cut power to more than 33,000 customers; commissioners pressed staff on industry exclusions that can omit major events from comparative metrics and requested geographic outage reporting by feeder and neighborhood.
Glendale Water & Power staff presented an electric reliability report April 6 that summarized system indices and restoration efforts after a January wind event that affected more than 33,000 customers.
"We experienced 33,000 plus customers out of power," said Barco Durian, electrical engineering manager, while reviewing SAIFI (frequency), SAIDI (duration) and CAIDI (customer average interruption duration) metrics and the utility's restoration work (pole replacements, tree trimming…
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