Topic:"Emergency Response" in M12728

Restoration began at the onset of storm-related outages and continued throughout the event until the last customer was restored at 16:00 on December 23, 2025. As a result, 98.93% of impacted customers were restored within the first 48 hour...

AI summary Restoration efforts began immediately after storm-related outages and continued until all customers were restored by 16:00 on December 23, 2025. 98.93% of impacted customers were restored within the first 48 hours, with smaller outages addressed after larger ones, often complicated by remote locations, tree contacts, or flooding.

SECTION 6: LESSONS LEARNED - Prediction model Actual high wind durations exceed forecasts provided to NSP, resulting in more outages than anticipated. - Transmission crews were staged near possible transmission events to allow for quick re...

AI summary The section highlights inaccuracies in wind duration forecasts leading to more outages than expected. NS Power used ground patrols due to helicopter limitations and utilized overnight damage assessment crews to prioritize restoration efforts, which proved effective.

NSEB, large weather events are inherently unique, and differences in timing, damage NON-CONFIDENTIAL characteristics, and operating conditions mean that direct comparisons will not align perfectly and should be interpreted with this contex...

AI summary The document discusses the restoration efforts following a large weather event, noting the challenges in direct comparisons due to varying conditions. It outlines a request for information about the number of field resources used, their hourly cost, and the number of hours resources were on standby but still paid, along with a partial response indicating 826 resources were active during the event.

1 (d) The outputs from the model are used to used to enable faster and better escalation and 2 deployment decisions prior to arrival of an event. This ultimately provides inputs to support 3 effective pre-storm planning processes contained...

AI summary The model's outputs are used to enable faster and better escalation and deployment decisions before an event occurs, supporting effective pre-storm planning processes within the ESRP.

Date Filed: April 17, 2026 NSPI (NSEB) IR-12 Page 2 of 2 1 Request IR-13: 2 3 In M12592, the Board recently approved NS Power's capital expenditure application for 4 ECC Dynamic Line Rating (DRL) Implementation on transmission lines L-6415...

AI summary The document refers to the Board's approval of NS Power's capital expenditure for the DLR Implementation on several transmission lines. It discusses the potential benefits of the DLR project in mitigating system impacts during extreme weather events, such as the November 2018 ice storm, and asks whether the approved lines caused customer impacts during the December 19-20, 2025 storm.

1 Request IR-14: 2 3 The report's lesson learned section identifies observations but does not demonstrate what 4 5 action NS Power has/will take. Please provide a comprehensive action plan arising from this storm. Does NS Power intend to m...

AI summary The request asks NS Power to provide an action plan based on lessons learned from a storm and whether changes will be made to its vegetation management program. The response outlines several action items, including updating prediction models, using drones for damage assessment, improving communication practices, and addressing system password management.

Request IR-9: - Section 5 refers to the storm bringing, "… upwards of 40 mm of heavy rain that tapered off before - temperatures fell below freezing". Provide the following for each zone where customers were - restored after temperatures f...

AI summary Request IR-9 seeks data on customer restoration after a storm caused freezing temperatures, including the number of customers restored, temperature deviations below freezing, and restoration duration per zone. The focus is on service reliability during extreme weather events.

Request IR-11: - The report states that "Over 600 field resources were mobilized to restore power in affected areas" - and that "Transmission crews were staged near possible transmission events to allow for quick - response". - a) What was...

AI summary The report details mobilization of over 600 field resources for power restoration and crew staging near transmission events. Questions seek clarification on actual resource numbers, hourly costs, and standby payment hours, highlighting concerns about cost transparency and efficiency in outage response.