Topic:"Distribution Planning" in M12878

METHODOLOGY - The report assigns the temperature and wind data based on the highest observed speeds that occurred during the event. - Full accounting of hourly weather data is provided as an appendix for the eight representative weather st...

AI summary The methodology section outlines how temperature and wind data are assigned based on observed speeds during events, using eight representative weather stations. It explains how unique and total customer impacts are calculated and highlights the rationale for selecting these stations to ensure accurate, province-wide analysis of storm events.

SECTION 4: PROVINCIAL HIGHLIGHTS Zone Date/ Time Weather Station Direction (Degrees) Max Wind Gusts (km/h) Temp (°C) Cause Sub-Cause Description Customers Impacted Duration (Hours) CB West 3/17/2026 11:03 Grand Étang 180 43 81 17 Tree Cont...

AI summary This section presents a summary of provincial highlights, detailing weather-related power outages in Nova Scotia. Events include tree contacts and transmission line faults caused by high winds and heavy rain, impacting thousands of customers across different zones with varying durations.

17 (a) The table below lists feeders with tree-related events that had over 1,000 Customer Hours 18 of Interruption during the event. Weather Region Feeder Event Count CI CHI South Shore 73W-411 2 3,224 7,553 South Shore 101W-411 1 507 1,1...

AI summary The document presents tables detailing feeders with tree-related events causing over 1,000 customer hours of interruption, along with vegetation work completed on these feeders by year. It notes that vegetation work is managed based on asset condition rather than a fixed schedule.

- 4 (d) Please see below for the tree-related 5 Year Average (2021-2025) frequency (CKAIFI) and 5 duration (CKAIDI) for these feeders. 5 Year Avg (2021-2025) Source CKAIFI CKAIDI 73W-411 2.73 18.64 101W-411 0.49 2.40 81N-411 0.95 17.48 23H...

AI summary The text provides data on tree-related 5-year average frequency (CKAIFI) and duration (CKAIDI) for various feeders from 2021 to 2025. It also requests additional details on utility outages related to Tropical Storm Elsa, including customer interruptions, restoration times, and costs, with some information not available.