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Topic/Matter Intersection

Topic:"Unplanned Outage" in M12558

Matter: Review of NS Power's Five-Year Reliability Plan 2025-2029
10 passages 1 document

Unplanned Outage across all matters →

N-3NSPI (Synapse) RIR 1 to 65 10 passages
in the Reliability Plan is completed under four capital routines shown in the table below: p. p. 10
in the Reliability Plan is completed under four capital routines shown in the table below: Reactive Work 2025 2026 D005 – Unplanned Replacement Deteriorated Equipment $21.5M $22.4M D008 – Storm Routine $3.6M $6.9M T001 – Provincial Transmi...

AI summary The Reliability Plan outlines four capital routines for 2025 and 2026, including unplanned replacement of deteriorated equipment, storm routine, provincial transmission line replacement, and provincial transmission substation primary equipment. The total costs for these routines are estimated at $29.7M for 2025 and $35.1M for 2026.

This includes 147 projects presented in ACE 2025 categorized as reliability investments p. p. 10
This includes 147 projects presented in ACE 2025 categorized as reliability investments Section Investment Category 2025 53,134 2,712,540 141,455 299,538 12,761,769 21,439,047 511,683 1,481,242 191,663 410,003 4,091,892 3,862,555 36,345 78...

AI summary The text presents data on 147 reliability investment projects from the ACE 2025 plan, categorized under various investment categories and reliability factors. The data includes figures related to outages, interruptions, and percentages attributed to different causes such as adverse weather and tree contacts.

Scheduled outage p. p. 10
Scheduled outage Interruptions due to the planned disconnection for construction or maintenance purposes

AI summary The document discusses interruptions caused by planned disconnections for construction or maintenance purposes, highlighting the impact on service reliability and customer experience.

p. p. 48
1 Request IR-20: 22 detail on outage cause is available, please provide (e.g. tree fall-in vs. tree contact, 23 specific equipment failure, etc.); 24 25 (i) Condition score or indicator; 26 27 (j) Number of residential customers; 28 29 (k)...

AI summary The document contains a request for detailed information on outage causes, customer numbers, load data, and reliability plan investments. It also includes a response referring to Attachment 1 and noting that all distribution feeders are considered distribution-level.

2025 Performance Standards Report Appendix I Page 8 of 10 p. p. 48
2025 Performance Standards Report Appendix I Page 8 of 10 2019 CKAIFI 2020 CKAIFI 2021 CKAIFI 2022 CKAIFI 2023 CKAIFI 2024 CKAIFI 2025 CKAIFI 2019 CKAIDI 2020 CKAIDI 2021 CKAIDI 2022 CKAIDI 2023 CKAIDI 2024 CKAIDI 2025 CKAIDI 113H-443 Fore...

AI summary The table presents data on various causes of power outages and interruptions from 2019 to 2025, including factors like adverse weather, defective equipment, foreign interference, tree contacts, and unknown causes. It provides quantitative metrics for each cause across multiple years.

4 2.1 Demonstrated Vegetation Program Impacts p. p. 186
4 2.1 Demonstrated Vegetation Program Impacts 6 [Figure 3](#page-187-1) below shows the Performance Standards annual customer hours of interruption due to 7 tree contacts for 2020-2025 Projected Year-End and shows positive signs that veget...

AI summary The text discusses the impact of vegetation management programs on reducing outage frequency and duration, using projected data from 2020 to 2025. It highlights improvements in system reliability as rights-of-way corridors are widened and clearances between trees and power lines are enhanced.

The primary goal of FLISR is to reduce the impact and duration of outages. The following table demonstrates how FLISR augments traditional technologies to provide the most benefits to customers. p. p. 187
The primary goal of FLISR is to reduce the impact and duration of outages. The following table demonstrates how FLISR augments traditional technologies to provide the most benefits to customers. Method Customers Impacted Speed to Restorati...

AI summary FLISR aims to minimize outage impact and duration by improving restoration speed compared to manual and conventional automated methods. The text explains how FLISR provides faster service restoration by precisely locating faults and reconfiguring feeders, unlike traditional methods that rely on time-current coordination with inherent delays.

3.2.3 Enova[13](#page-192-3) p. p. 192
3.2.3 Enova[13](#page-192-3) Background: Enova, and its two legacy utilities, leverage the Advanced Distribution Management System (ADMS) and FLISR deployments to lower the frequency and severity of unplanned power outages across its servi...

AI summary Enova utilizes the Advanced Distribution Management System (ADMS) and FLISR technology to reduce the frequency and severity of unplanned power outages. These technologies, including SCADA and grid modernization devices, enable automatic self-healing and rapid power restoration during faults.

1 Centralized p. p. 193
1 Centralized 2 Feeders 2H-411, 2H-421, 104H-433, 104H-423, and 103H-433 form an important part of 3 the distribution network serving the Halifax Peninsula, increasing the potential impact of 4 unplanned outages due to the high density of...

AI summary The document highlights the importance of feeders in the Halifax Peninsula distribution network and discusses the potential benefits of implementing centralized FLISR and ADMS to optimize restoration actions and manage system constraints.

Section 921 p. p. 193
7 13 8 As further described in IR-4 Attachment 1, the estimated directional reduction in duration 9 of outages conservatively ranges from 12-25 percent. Using the average avoided outage 10 duration, PLT Labour, and Administrative and Vehic...

AI summary The text discusses the estimated reduction in outage duration from FLISR installation, with potential annual avoided operational costs estimated at approximately $16,500. This information is part of NSPI's responses to NSEB Information Requests related to FLISR implementation.

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