N-1Five-Year Reliability Plan
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14 Figure 1: Forecast Investment by Reliability Program 2025-2029 ($ million) Reliability Program 2025 2026 2027 2028 2029 Total Plan Storm Hardening - Targeted Equipment Replacement and Upgrades 152.4 181.1 198.7 192.4 191.8 916.4 Storm H...
AI summary The document presents a forecast of investment by reliability program from 2025 to 2029, with a focus on storm hardening, vegetation management, and advanced grid modernization. The total investment plan is estimated at $1,259.3 million over the five-year period.
3.0 RELIABILITY PROGRAMS Nova Scotia Power's Five-Year Reliability Plan includes three key reliability programs that address tree contacts and adverse weather (the primary causes of outages as outlined in the previous section), as well as...
AI summary Nova Scotia Power's Five-Year Reliability Plan includes three key reliability programs: Storm Hardening - Vegetation Management, Storm Hardening - Targeted Equipment Replacements and Upgrades, and Advanced Grid Modernization. These programs aim to reduce outages caused by tree contacts, adverse weather, and aging infrastructure by investing in rights-of-way, equipment upgrades, and advanced grid technologies.
4.2 Transmission Corridor Widening with Managed Rights of Way (ROW)
AI summary This section discusses the widening of transmission corridors with managed rights of way (ROW), focusing on infrastructure planning and grid modernization strategies to enhance system reliability and accommodate future energy needs.
Figure 8: New Rights-of-Way for Distribution Feeders
AI summary Figure 8 presents a visual representation of new rights-of-way for distribution feeders, which is likely related to infrastructure planning and grid modernization efforts in Nova Scotia.
4.4 Trimming and Removal of Trees Around Existing Power Lines
AI summary This section discusses the trimming and removal of trees around existing power lines, a critical aspect of maintaining grid reliability and preventing service interruptions.
6.0 ADVANCED GRID MODERNIZATION PROGRAMS 2025-2029 Forecast Investment: $78 million Forecasted Performance Standards SAIDI Reduction: 0.06 to 0.11 hours In addition to the grid modernization that is becoming inherent in some of the traditi...
AI summary The document outlines the Advanced Grid Modernization Programs for 2025-2029, with a total forecast investment of $78 million. These programs aim to improve grid reliability through real-time monitoring, automation, and enhanced control over Distributed Energy Resources (DERs). Key subprograms include Connected Assets and Fault Isolation and Service Restoration, with a focus on improving outage detection, recovery times, and overall system performance.
12 Figure 13: Remote Terminal Units Proposed for 2025 RTU Region Area / Community Substation Cape Breton Port Hastings 2C Cape Breton Southwest Margaree 58C Cape Breton Cleveland 22C Northeast Tatamagouche 4N West Hebron 16W West Bridgewat...
AI summary Figure 13 lists the proposed Remote Terminal Units (RTUs) for 2025, including locations across various regions in Nova Scotia, such as Cape Breton, Northeast, and West, with specific areas and substations identified.
14 6.1.2 Downline Connectivity 15 16 2025-2029 Forecast Investment: $44 million - 1 Expanding on Section 6.1, adding a communications path from a downline recloser to the ADMS - 2 environment can provide reliability benefits including fast...
AI summary NS Power plans to invest $44 million between 2025 and 2029 to expand connectivity from downline reclosers to the ADMS, aiming to improve reliability, reduce delays, and enhance asset management and safety through remote SCADA operations.
13 Figure 14: Downline Reclosers Planned for 2025-2026 Downline Connectivity Region Area / Community Feeder / Substation (part of) West Three Mile Plains 79V-401 Metro Musquodoboit Harbour 87H-313 87H-313 Northeast Dickie Brook 24C-442 Nor...
AI summary The document outlines planned downline reclosers for 2025-2026 and discusses NS Power's investments in advanced technologies and system upgrades to enhance grid reliability and support self-healing grid projects. It highlights the importance of fault location, isolation, and service restoration (FLISR) and the role of distributed energy resources (DERs) in improving grid flexibility and reliability.
- Energy will often be generated and timed when weather patterns and customers decide, not when - the grid demands. The patterns on which utility customers consume electricity are changing, - requiring new methods and capabilities to manag...
AI summary The document discusses the evolving patterns of electricity consumption and the need for enhanced data and automation to manage the grid effectively. It highlights the integration of DER into the Nova Scotia grid and the evaluation of a DERMS platform to maintain system stability and reliability.
1 7.0 CONCLUSION 2 3 This Plan demonstrates NS Power's commitment to delivering reliable and resilient electrical 4 service to customers. By investing in infrastructure hardening, grid modernization, vegetation 5 management, and leveraging...
AI summary NS Power outlines its commitment to enhancing grid reliability and resilience through infrastructure investments and modernization. The Plan acknowledges potential external challenges and emphasizes flexibility, with updates to be provided in future ACE Plans as directed by the Board in M11692. NS Power also aims to engage stakeholders on the balance between reliability improvements and costs.
DATE FILED: December 20, 2024 Page 37 of 40 1 APPENDIX A – DEFINITIONS 2 3 DERs (Distributed Energy Resources): 4 Small-scale, decentralized power sources such as solar panels, wind turbines, and battery storage 5 systems that are connecte...
AI summary This document defines key terms and performance standards related to the electrical grid, including definitions for Distributed Energy Resources (DERs), reliability, resilience, and metrics such as SAIDI and SAIFI. It also references a regulatory order from April 7, 2022, approving performance standards compliance.
N-3NSPI (Synapse) RIR 1 to 65
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Figure 1 from Report Reliability Program 2025 2026 2027 2028 2029 Total Plan Storm Hardening - Targeted Equipment Replacement and Upgrades 152.4 181.1 198.7 192.4 191.8 916.4 Storm Hardening - Vegetation Management 45 45 65 65 265 Advanced...
AI summary Figure 1 outlines the reliability program investments from 2025 to 2029, including storm hardening, vegetation management, and grid modernization. The 2025 ACE Project-Based Investment Breakdown is also mentioned, indicating a focus on infrastructure improvements and reliability enhancements.
This includes 147 projects presented in ACE 2025 categorized as reliability investments Section Investment Category 2025 4.0 Storm Hardening - Vegetation Management $ 45,000,000 4.1 Distribution Corridor Widening with Managed Rights-of-Way...
AI summary The text outlines 147 reliability investment projects presented in the ACE 2025 report, including storm hardening, corridor widening, equipment upgrades, and grid modernization programs, with specific funding allocations and percentages of total program investments for 2025-2029.
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 14 4.3 Transm...
AI summary This document outlines various infrastructure and grid modernization initiatives under the 2025 Performance Standards Report, including transmission corridor widening, rights-of-way management, storm hardening, equipment upgrades, and advanced grid modernization programs.
6 Figure 1: Forecast Investment by Reliability Program 2025-2029 ($ millions) Reliability Program 2025 2026 2027 2028 2029 Total Storm Hardening – 152.4 181.1 198.7 192.4 191.8 916.4 Targeted Equipment Replacement and Upgrades Storm Harden...
AI summary The document presents a forecast of investment in reliability programs from 2025 to 2029, with a focus on storm hardening, equipment replacement, vegetation management, and grid modernization. NS Power aims to meet two overarching goals by 2029 through these investments.
1 October 31, there is a 53 percent reduction in customer interruptions and a 29 percent reduction in 2 customer hours of interruption due to device failure in 2025 over 2023 levels. 3 4 The benefits of the program and the impact on the re...
AI summary The document highlights a 53% reduction in customer interruptions and a 29% reduction in customer hours of interruption due to device failure in 2025 compared to 2023. NS Power acknowledges the need for stakeholder reassurance regarding the effectiveness of reliability investments and agrees with the NSEB and stakeholders on balancing reliability and affordability. The Board directed NS Power to provide annual updates on the progress of its Five-Year Reliability Plan.
- 2 to provide the Board and Stakeholders with: - 3 - 4 An update on the completed progress on the Plan to date in 2025, - 5 A forecast of work anticipated to be complete before year end, and - 6 Notable updates to the Plan for future year...
AI summary The document outlines NS Power's Plan to improve system reliability, aiming for a 20% improvement in outage performance by 2029. Tree contacts are identified as the leading cause of outages, with adjustments made to account for their contribution from adverse weather. Grid modernization efforts, such as RTUs and remote connectivity, are highlighted as key strategies to reduce outage impacts.
1 3.0 2025 Overview – Year One of Five Year Reliability Plan 2 3 In 2025, NS Power's Reliability team has been focused on executing the projects identified in year 4 one of the Plan, with $206.6 million committed to strengthen the grid and...
AI summary In 2025, NS Power has committed $206.6 million to strengthen the grid and enhance its resilience, focusing on reliability upgrades, including coastal framing standards, insulator upgrades, conductor replacement, transformer replacements, and tree clearing. These efforts are part of the five-year reliability plan.
13 Figure 5: Reliability Program Detailed 2025 Investment Breakdown Reliability Program Targeted Strategy 2025 Planned Investment 2025 Completed to Date 2025 Planned to Complete in Remainder of Year Anticipated YE Result Program Status Dis...
AI summary The document outlines the 2025 investment breakdown for a reliability program, including planned and completed work in distribution corridor widening, vegetation management, equipment upgrades, and grid modernization. Some projects were revised due to wildfire mitigation efforts and other factors.
1 5.0 STORM HARDENING – TARGETED EQUIPMENT REPLACEMENTS AND 2 UPGRADES 3 4 2024-2029 Forecast Investment: $916 million 5 Forecasted Performance Standards SAIDI Reduction: 0.13 to 0.24 hours 6 7 2025 Anticipated Year End Investment: $152.4...
AI summary The document outlines a 2024-2029 forecast investment of $916 million for storm hardening through targeted equipment replacements and upgrades on the distribution, transmission, and substation systems. The initiative aims to improve grid reliability and resilience by reducing outage frequency, increasing capacity, and integrating advanced monitoring technologies.
1 6.0 ADVANCED GRID MODERNIZATION PROGRAMS 2 3 2025-2029 Forecast Investment: $78 million 4 Forecasted Performance Standards SAIDI Reduction: 0.06 to 0.11 hours 5 6 2025 Anticipated Year End Investment: $9.2 million 7 8 NS Power's Advanced...
AI summary NS Power's Advanced Grid Modernization program aims to improve grid reliability and efficiency through technologies like RTUs, FLISR, and DER integration. The 2025-2029 forecast investment is $78 million, with a target SAIDI reduction of 0.06 to 0.11 hours. Progress includes 6 completed RTUs and 64 remaining devices to be connected by 2025/2026.
10 2025-2029 Forecast Investment: $44 million 11 2025 Anticipated Year End Investment: $5.2 million 2 M12588, To obtain a cost reasonableness review of NS Power CI C0051815 - RTU Replacements Program – Phase 6, as outlined in Section 2.1 o...
AI summary The document outlines a 2025-2029 investment forecast of $44 million, with $5.2 million anticipated for 2025. It discusses the integration of downline reclosers with the Advanced Distribution Management System (ADMS) to improve reliability and safety, including accelerated fault location, reduced restoration delays, and enhanced data visibility.
11 Figure 30: 2026 Reliability Program Investment Overview Reliability Program 2026 Anticipated Spend Storm Hardening – Targeted Equipment Replacement and Upgrades $178.9 Storm Hardening – Vegetation Management $45.0 Advanced Grid Moderniz...
AI summary The 2026 Reliability Program investment overview outlines anticipated spending on storm hardening, vegetation management, and grid modernization, with a total investment of $234.6 million. Key initiatives include equipment replacement, corridor widening, and the deployment of advanced grid technologies.
15 7.3 ADVANCED GRID MODERNIZATION PROGRAMS 17 2026 Forecast Investment: $10.7 million
AI summary The 2026 Forecast Investment for Advanced Grid Modernization Programs is projected to be $10.7 million.
19 7.3.1 Connected Assets 21 In the second year of the Five-Year Reliability Plan, NS Power will continue to expand and 22 implement telecommunications connectivity across the grid. This includes the integration of 23 telemetry and control...
AI summary In the second year of the Five-Year Reliability Plan, NS Power will continue expanding telecommunications connectivity across the grid, including the integration of telemetry and control capabilities, replacement of RTUs, and enhanced communication with distributed protection equipment to improve real-time visibility and system reliability.
4 7.3.1.1 Remote Terminal Units (RTUs) 3 5 10 - 6 In 2026, NS Power will prioritize the replacement and upgrade of end-of-life RTUs to maintain - 7 and enhance grid reliability. The details of the devices planned for replacement are listed...
AI summary NS Power plans to replace and upgrade end-of-life Remote Terminal Units (RTUs) starting in 2026 to improve grid reliability. This initiative will continue through 2027 to 2029, enhancing system visibility, control, and operational resilience.
15 NS Power remains committed to enhancing grid reliability by expanding connectivity to downline 16 devices. In 2026, the focus will continue to be on integrating advanced telemetry and remote 17 control capabilities into intelligent fiel...
AI summary NS Power is committed to improving grid reliability by expanding connectivity to downline devices. In 2026, the focus will be on integrating advanced telemetry and remote control capabilities into intelligent field equipment, as outlined in a figure.
5 NS Power continues to advance its grid modernization efforts through the deployment of FLISR 6 technology, which enhances system reliability by automating fault detection and service 7 restoration. The FLISR implementation follows a stru...
AI summary NS Power is advancing grid modernization by deploying FLISR technology, which automates fault detection and service restoration, enhancing system reliability. The implementation follows a structured, multi-step approach.
9 1 • Device Deployment: The first phase involves ensuring the necessary field devices are in 2 place. While most of the required devices already exist on the system, some will be newly 3 installed, and others will replace older, less capa...
AI summary The document outlines the three-phase implementation plan for FLISR (Fault Location, Isolation, and Service Restoration) projects, including device deployment, connectivity enablement, and configuration. These projects are targeted for completion by the end of 2026 and are currently under consideration by the NSEB under matter M12417. A table details the planned FLISR implementation projects across various regions and communities.
of the plan based on the highest risks, which would typically focus on substations with large customer counts and consequently large potential for reliability improvements. However, in later years of the plan, these high impact locations w...
AI summary The reliability improvement plan prioritizes substations with high customer counts for initial installations, with subsequent efforts focusing on lower impact areas. The program's effectiveness is limited by the finite number of RTU installation locations. NS Power acknowledges the complexity of predicting precise SAIDI improvements due to various influencing factors such as equipment, location, and weather variability.
2025-2029 Five Year Reliability Plan Review IR-38 Attachment 2 Page 1 of 1 Investment Track Sub-Program Scalability Notes Section SAIDI H lour Per $1M (Low) SAIDI Hou r Per $1M (High) Proposed Incremental Investment SA DI Reduction (Low) S...
AI summary The document outlines a Five Year Reliability Plan Review for 2025-2029, focusing on investment tracks, sub-programs, scalability, and reliability metrics such as SAIDI and SAIFI. It includes details on Storm Hardening, Distribution System Upgrades, and Advanced Grid Modernization Programs with associated costs and reliability improvements.
While residual risk remains, the proposed work supports sustaining transmission line reliability performance by reducing vegetation‑related exposure under severe weather conditions. Line Number Line/Structure Number VEG_POLYGO CONDUCTOR_ R...
AI summary The proposed work aims to reduce vegetation-related exposure on transmission lines during severe weather, thereby supporting the reliability of the transmission system. The data includes details about specific line spans, risk classifications, and survey information.
6 (a) Please refer to the table below. CI# Project Title 5 YR 2025 Forecast Total Reliability Improvements Reason for work not completed C0031122 L6539 Replacements and Upgrades $1,529,843 Upgrades Completed 2024 2025 Sacrificial Anode Tra...
AI summary The table lists various projects related to reliability improvements in transmission infrastructure, including replacements, upgrades, and refurbishments. Some projects are marked as completed, while others are noted as work in progress or have been cancelled.
NON-CONFIDENTIAL 1 risks or failures that happen each year. Due to these changes, several other 13 It is important to note that a project's inclusion in the Five-Year Reliability Plan does not exclude 14 it from the standard regulatory rev...
AI summary The text discusses the regulatory process for capital projects within the Five-Year Reliability Plan, emphasizing that inclusion in the plan does not replace the need for individual project approvals by the NSEB under the Public Utilities Act. It also requests detailed cost and SAIDI reduction data for the Advanced Grid Modernization Programs.
(f) Please describe how grid modernization interacts with the other categories of investment proposed in the reliability plan. For example, will increased automation and monitoring of grid conditions allow the Company to more effectively c...
AI summary The response outlines a five-year, $78 million investment plan for the Advanced Grid Modernization Program, aiming to reduce SAIDI by 20% through a risk-based approach. The plan considers historical data and operational constraints, with projections based on total investment rather than individual projects.
NON-CONFIDENTIAL 1 2 (c) NS Power does not assess mitigation effectiveness at the level of each individual 3 Connected Asset intervention. For Fault Isolation and Service Restoration projects, please 4 see IR-58 for more details. As noted,...
AI summary NS Power does not assess the effectiveness of mitigation at the individual asset level for Fault Isolation and Service Restoration projects. Grid visibility and monitoring capabilities are limited, with most distribution feeders beyond the substation lacking real-time monitoring. Data collection is limited, and most switch operations require manual intervention.
(b) Remote Terminal Units support reliability by providing real-time telemetry, status indication, and remote control capability for substation equipment through NS Power's SCADA system. This improves outage awareness, expedites fault loca...
AI summary Remote Terminal Units (RTUs) enhance grid reliability by enabling real-time monitoring and remote control of substation equipment through NS Power's SCADA system. They improve outage awareness, expedite fault location, and reduce outage duration by allowing operators to monitor and manage connected devices remotely.
RTU Connectivity Substation Description Substation Criticality Substation Customers Feeder Criticality 58C 58C Southwest Margaree 5 3128 4 22C 22C Cleveland 3 4291 5 4N 4N Tatamagouche 5 4811 5 16W 16W Hebron 5 3452 5 89W 89W Bridgewater E...
AI summary The document discusses RTU connectivity, focusing on substation and feeder criticality, customer counts, and requests for information regarding lessons learned from previous projects related to downline connectivity and Control Center integration.
CI C0071528 – FLISR Implementation (NSEB M12417) NSPI Responses to NSEB Information Requests 1 (c) As noted in part (b), the project is not designed or intended to prevent outage events from 2 occurring, but improvements in reliability per...
AI summary The document discusses NS Power's FLISR implementation, noting that the project does not aim to prevent outages but improve reliability performance through faster restoration. Performance will be evaluated using asset management frameworks and risk-based assessments, with data from ADMS and AMI used for validation. A formal cost-benefit analysis was not conducted due to FLISR's unique functionality.
The deployment of FLISR presents a few key technical and operational challenges that must be managed as described in the table below: Risk / Challenge Mitigation Communications infrastructure must be robust for some FLISR technologies to b...
AI summary The deployment of FLISR (Fault Location, Isolation, and Service Restoration) faces challenges related to communications infrastructure, ADMS grid model accuracy, training for grid operators, and investment support. Mitigation strategies include telecom planning, grid model validation, OCM plans, and exploring government funding programs.
2.5.1 EPRI The Electric Power Research Institute, Inc (EPRI) is an independent, nonprofit organization that conducts research and development relating to the generation, delivery, and use of electricity for the benefit of the public. EPRI'...
AI summary The document discusses the Electric Power Research Institute (EPRI) and its research on FLISR technology, highlighting its role in improving grid reliability and operational efficiency. EPRI's Grid Modernization Playbook outlines the capability maturity model for distribution grid modernization, with FLISR identified as a sub-capability under Distribution Automation.
2.5.2 US Department of Energy The United State Department of Energy (DOE), through its Smart Grid Investment Grant (SGIG), highlights that widespread FLISR deployments can help utilities improve grid performance as measured by standardized...
AI summary The US Department of Energy (DOE) highlights the benefits of FLISR technology in improving grid performance through reduced outage duration and frequency. The 2016 SGIG report showed positive outcomes from 62 projects. In 2023, the Grid Deployment Office launched a $10.5 billion GRIP Program to enhance grid resilience, with FLISR identified as a priority investment.
2.5.3 NRCan National Resources Canada (NRCan) is investing in Smart Grids to support the modernization of the safe and secure delivery of electricity. Since 2012, NRCan has confirmed funding to demonstration projects that work towards smar...
AI summary National Resources Canada (NRCan) is investing in smart grid technologies to modernize electricity delivery. Since 2012, NRCan has supported demonstration projects, including FLISR, DERMS, and DI Apps, aimed at improving grid reliability and resilience. In 2025, NRCan approved funding for three projects by NS Power.
3.0 Jurisdictional Scan FLISR technology is being deployed and expanded across North America. The primary goals across these utilities are improving reliability, minimizing outage durations, and increasing operational efficiency through FL...
AI summary FLISR technology is being deployed across North America to improve reliability, minimize outage durations, and increase operational efficiency. Utilities have shared publicly available results and metrics demonstrating these improvements.
3.1 US FLISR Deployments
AI summary This section discusses US FLISR (Fault Location, Isolation, and Service Restoration) deployments, focusing on technologies and strategies used in the United States for grid reliability and outage management.
3.1.1 Pacific Gas & Electric [7](#page-191-2) Background: PG&E has one of the largest deployments of FLISR in North America with coverage on over 1000 feeders and millions of customers. PG&E's FLISR projects started in 2011 with grants und...
AI summary PG&E has deployed FLISR technology across over 1000 feeders and millions of customers, starting in 2011 with SGIG grants. Initially using a standalone system, PG&E transitioned to an ADMS-integrated FLISR solution in 2023 for better real-time control and visibility.
3.1.2 Electric Power Board Chattanooga[8](#page-191-3)[9](#page-191-4) Background: EPB Chattanooga leveraged US Department of Energy SGIG funding to rollout a service territory-wide FLISR deployment. Approach: EPB deployed 1100 S&C Electri...
AI summary EPB Chattanooga implemented a FLISR deployment using SGIG funding, installing 1100 devices across its distribution network to improve reliability and outage response.
3.1.3 Georgia Power[10](#page-191-5) Background: Georgia Powerinstalled FLISR distribution technology on circuits serving more than 1.2 million customers across the state. Approach: Georgia Power implemented self-healing FLISR schemes on o...
AI summary Georgia Power has implemented FLISR distribution technology on over 700 circuits serving more than 1.2 million customers, aiming to improve grid reliability and outage response times.
3.2 Canada FLISR Deployments
AI summary This section discusses FLISR (Fault Location, Isolation, and Service Restoration) deployments in Canada, focusing on their implementation and impact on grid reliability and outage management.
3.2.1 Hydro On[e11](#page-192-1) Background: Hydro One's 2023–2027 Distribution System Plan (DSP) highlights a significant push to modernize grid operations through Advanced Distribution Management Systems (ADMS), where FLISR plays a pivot...
AI summary Hydro One's 2023–2027 Distribution System Plan emphasizes modernizing grid operations with Advanced Distribution Management Systems (ADMS), focusing on FLISR to enhance reliability and resiliency through faster restoration.
3.2.2 Oshawa Power[12](#page-192-2) Background: Oshawa Power initiated the deployment of its FLISR system in December 2021. As of year-end 2023, more than 40% of their grid is now connected to the FLISR system. This implementation represen...
AI summary Oshawa Power has deployed its FLISR system since December 2021, with over 40% of its grid connected as of year-end 2023. The FLISR system is part of a broader grid automation strategy aimed at modernizing distribution operations, improving system reliability, and enhancing customer service through a two-layer automation approach.
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.
4.0 Conclusion & Recommendations FLISR capability is fundamental to grid management and is identified in the NS Power Five Year Reliability Plan as a subprogram of advanced grid modernization. The prevalence and experience of FLISR deploym...
AI summary The document emphasizes the importance of FLISR (Fault Location, Isolation, and Service Restoration) in grid modernization, noting its critical role in improving reliability. It outlines deployment options and highlights support from government programs like NRCan and US DOE initiatives, which can provide funding for FLISR and other smart grid technologies.
1 Request IR-5: 2 3 The application notes implementation of three versions of FLISR technologies and 4 equipment in four geographic areas within Nova Scotia. 5 6 (a) Keeping the reasons for outages noted above in mind, please list the rati...
AI summary The response to Request IR-5 explains the rationale for selecting different FLISR technologies for different feeders in Nova Scotia. Radial feeders (85S-401 and 11S-401) use devices for enhanced fault location and segmentation, while feeders in areas with alternative power flow sources (129H-412 and 137H-414) use a decentralized FLISR scheme for rapid response and partial restoration during outages.
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.
1 alternate feed to customers. This restores the maximum number of impacted customers, 2 typically within a minute. 3 4 5 The following table identifies events that triggered the IntelliTeam FLISR scheme since its 6 final commissioning on...
AI summary The IntelliTeam FLISR scheme has restored service to approximately 61% of impacted customers since its commissioning in November 2023, with six interruptions recorded by November 2024. It has avoided 14,484 customer interruptions and 35,643 customer hours. The system communicates with the ADMS at NS Power's Distribution Control Centre, providing situational awareness to Distribution Operators.
NON-CONFIDENTIAL Duration (hrs) Count of Premise ID % Restored Customer Hours Avoided Count of Customer Interruptions Saved 2 3 Is NS Power planning to incorporate dollar values associated with any other types of benefits 4 (other than VoL...
AI summary NS Power does not plan to incorporate additional dollar values beyond VoLL into cost-effectiveness evaluations for reliability planning. The company asserts that all investments in its Five-Year Reliability Plan are necessary and justified to meet performance standards and enhance grid resilience against climate change.