Topic:"Unplanned Outage" in M12417

Request IR-1: (a) Starting in 2023, for each feeder selected in this application, please provide a list of outages, reasons, durations and the number of customers affected. (b) Starting in 2020, please provide a percentage breakdown of the...

AI summary The response to Request IR-1 provides information on outages, reasons for outages, reliability improvement activities, and limitations in improving feeder reliability. It directs to attachments and tables for detailed data on outages and reliability efforts.

Outage Cause by Customer Hours of Interruption (CHI): Outage Cause 2020 2021 2022 2023 2024 2025 Adverse Environment 0.0% 2.1% 0.0% 1.0% 0.0% 0.0% Adverse Weather 28.9% 41.7% 58.8% 20.1% 20.0% 12.6% Defective Equipment 5.6% 3.1% 6.1% 6.1%...

AI summary The document presents data on outage causes by customer hours of interruption (CHI) from 2020 to 2025, highlighting the percentage of outages attributed to factors such as adverse weather, defective equipment, and tree contacts. It also includes a table of projects related to specific feeders from 2020 to the present, detailing project descriptions, years, and costs.

20 numerous bring to roadside projects have been advanced to reduce outage 1 interruptions. These feeders present operational challenges and constraints that 2 make them ideal candidates for early FLISR deployment. This initiative aligns w...

AI summary The text discusses the deployment of FLISR technology on feeders with operational challenges to reduce outages and improve grid reliability. It highlights the benefits of FLISR in urban areas and provides a table of outage events on feeder 103H-433 with details such as dates, durations, and causes.

1 Centralized Feeders 2H-411, 2H-421, 104H-433, 104H-423, and 103H-433 form an important part of the distribution network serving the Halifax Peninsula, increasing the potential impact of unplanned outages due to the high density of custom...

AI summary The text discusses the importance of specific feeders in the Halifax Peninsula distribution network and their suitability for centralized FLISR and ADMS solutions to optimize outage restoration and manage system constraints.

3 Evidenced by the jurisdictional scan and experience, as described in IR-4 Attachment 1, 4 the expected reduction in impacted customers during outage conditions ranges from 40-60 5 percent.

AI summary The text indicates that based on a jurisdictional scan and experience outlined in IR-4 Attachment 1, the expected reduction in impacted customers during outage conditions is between 40-60 percent.

Request IR-1: - a) Starting in 2023, for each feeder selected in this application, please provide a list of outages, reasons, durations and the number of customers affected. - b) Starting in 2020, please provide a percentage breakdown of t...

AI summary Request IR-1 asks the utility to provide detailed information on outages, reliability improvement activities, and reasons for limitations in improving feeder reliability starting from 2020 and 2023.

Request IR-4: a) For each feeder, please elaborate, compared to Fault Location, Isolation and Service Restoration (FLISR) technology, whether any technical and cost-benefit analysis has been - conducted to reduce the propagation of outages...

AI summary Request IR-4 asks for an analysis comparing FLISR technology with other outage-reduction methods like sectionalizers and reclosers, including cost-benefit analyses, and explains why FLISR was selected over alternatives.