N-2NSPI (NSEB) RIRs 1-9
5 passages
NON-CONFIDENTIAL 1 Request IR-4: 2 3 Please provide a detailed explanation for why the Valley region experienced significantly 4 higher Customer Hours of Interruption (CHI) relative to other regions during this event. In 5 your response, p...
AI summary The Valley region experienced higher Customer Hours of Interruption (CHI) during an event, prompting a request for explanation. The response indicates that vegetation management practices are consistent across regions, but the Valley was heavily impacted by extreme weather conditions, including heavy wet snow and mixed precipitation, which brought trees into contact with power lines.
Date Source Incident CI CH Duration (Hrs) CEA Description Sub-Cause Device Failed 2025-12-03 70V-312 INC 47005056 7 112.3418 16.04883333 Defective EquipmentMechanical Failure Automatic Splice 2025-12-03 81S-303 INC 47005109 1 1.72 1.72 Def...
AI summary The document presents a list of incidents involving defective equipment and mechanical failures across various locations, detailing the date, source, incident number, customer impact, duration, and the specific device that failed. It also includes a request for an evaluation of restoration prioritization practices.
- of the impacts of the "largest first" restoration approach. The response should address: - The comparative impact on rural versus urban customers; (a) The extent to which this approach influences exposure to long-duration outages; and (b...
AI summary NS Power's 'largest first' restoration approach prioritizes major outages and critical infrastructure, leading to long-duration outages typically affecting individual customers or single distribution transformers due to access issues or localized vegetation damage. The response highlights the ESRP and its approval by the NSEB.
(b) Of the 56,114 customer interruptions experienced over the December 3 Major Event Day, a breakdown of the customers that experienced outages lasting more than 24 hours is below: Region Customer Count of 24hr+ Outages Cape Breton 182 Met...
AI summary The document provides a breakdown of customer outages lasting more than 24 hours during the December 3 Major Event Day and requests an evaluation of field resource utilization during the event, including crew deployment, time intervals between outage detection and dispatch, and productivity indicators.
erational model is designed to maximize overall restoration effectiveness, safety, and span of control, but does not support meaningful or reliable calculation of crew‑hour‑based productivity metrics. While crew‑level productivity ratios a...
AI summary NS Power's operational model focuses on restoration effectiveness and safety, but does not track crew-level productivity ratios. Post-event performance data is collected using customer-focused metrics, while resource data is used for cost recovery and planning. Restoration outcomes depend on various factors, and post-event critiques aim for improvement rather than individual performance evaluation.