Topic:"Grid Modernization" in M12417

DESCRIPTION: Fault Location, Isolation and Service Restoration (FLISR) is a system of distribution protection devices sited to allow automatic and remote re-configuration of the distribution grid. Its purpose is to improve feeder reliabili...

AI summary The document describes the Fault Location, Isolation and Service Restoration (FLISR) project, which involves installing three FLISR technologies across four geographic areas in Nova Scotia to improve feeder reliability. The project is part of NS Power's Advanced Grid Modernization investment and includes federal government funding to reduce customer costs.

Why do this project? Investment in FLISR was identified in NS Power's Five-Year Reliability Plan as part of the overall Advanced Grid Modernization program. FLISR technology enables automatic and remote re-configuration of the distribution...

AI summary This project involves investing in FLISR technology as part of NS Power's Five-Year Reliability Plan under the Advanced Grid Modernization program. FLISR improves grid reliability by automatically reconfiguring the distribution system during outages, minimizing customer impact and enhancing grid resiliency.

REDACTED CI C0071528 Page 2 of 6 REDACTED (CONFIDENTIAL INFORMATION REMOVED) This project will deploy the three FLISR technologies in four locations across Nova Scotia. Two locations in Cape Breton will utilize the Automated and Increased...

AI summary The project involves deploying FLISR technologies across four locations in Nova Scotia to enhance grid resilience, reduce outage impacts, and improve operational efficiency. Industry case studies indicate that self-restoring grid projects can improve reliability by reducing customer interruptions and hours of interruption.

REDACTED CI C0071528 Page 3 of 6 REDACTED (CONFIDENTIAL INFORMATION REMOVED) • Centralized FLISR leverages FLISR capabilities in the NS Power ADMS for visibility and control of installed and configured protection devices. Centralized FLISR...

AI summary The text discusses the implementation of centralized FLISR in NS Power's ADMS, which enhances grid control and flexibility during outages. It highlights key locations on the Halifax peninsula served by specific substations and catering to a large customer base.

Document No: XXX-XX-XXXX-XXXX Transmission Line Infrastructure Required fields: Estimate Classification Project Name: FLISR Implementation Started or Preliminary Class 5 Class 4 Class 3 Class 2 Class 1 Maturity Level of Project Definition...

AI summary The document outlines the FLISR Implementation project, detailing its scope, maturity level, and various planning and infrastructure requirements. It includes information on project definitions, capacity, location, technology selection, and planning strategies, with classifications for different stages of estimation and project definition.

The table below provides a scope summary and pricing for S&C's services. SERVICES Item Description Price 3 Overcurrent Protection Device Coordination Study S&C Electric Company (S&C) will perform an Overcurrent Protection Device Coordinati...

AI summary The document outlines the scope and pricing for S&C Electric Company's services, including an Overcurrent Protection Device Coordination Study, automation settings configuration, and onsite commissioning for Nova Scotia Power's Kearney Circuit 1. The study involves evaluating protection settings, identifying deficiencies, and providing recommendations for improvements.

20 numerous bring to roadside projects have been advanced to reduce outage 1 interruptions. These feeders present operational challenges and constraints that 2 make them ideal candidates for early FLISR deployment. This initiative aligns w...

AI summary The text discusses the deployment of FLISR technology on feeders with operational challenges to reduce outages and improve grid reliability. It highlights the benefits of FLISR in urban areas and provides a table of outage events on feeder 103H-433 with details such as dates, durations, and causes.

generate trouble calls within the Advanced Distribution Management System (ADMS) enabling centralized tracking and response coordination. (b) Trouble calls and outage data are logged in NS Power's ADMS during the event and, upon resolution...

AI summary The document describes how trouble calls and outage data are logged in NS Power's Advanced Distribution Management System (ADMS) and archived for analysis using tools like Tableau and Excel.

(c) Please refer to the following table for the percentage of AMI meters on each feeder associated with the project. Feeder AMI % 85S-401 93% 11S-411 98% 2H-411 99% 2H-421 99% 103H-433 99% 104H-423 98% 104H-433 99% 129H-412 99% 137H-414 98...

AI summary The text provides a table showing the percentage of AMI meters on each feeder associated with the project, as well as information about the methods used for detecting outages or faults in the FLISR project.

• Sensor signals sent to Supervisory Control and Data Acquisition (SCADA) systems. SCADA systems provide near-real-time monitoring and control of devices on the grid, such as breakers, substation reclosers, and switches. Operators can obse...

AI summary The document discusses the use of SCADA systems for near-real-time monitoring and control of grid devices, as well as the installation of protection and control devices configured to respond to faults on distribution feeders.

NON-CONFIDENTIAL 1 Coordination (TCC). In a conventional coordination scheme, protective devices are 2 set with intentional time delays to ensure downstream devices can operate before 3 upstream devices clear the fault. 4 5 • AMI systems c...

AI summary The text discusses the coordination of protective devices in a conventional scheme and highlights the benefits of AMI systems and FLISR in outage detection and restoration. FLISR provides automated fault location capabilities that traditional devices lack.

configuration, other ongoing reliability investments, weather conditions, and the type of FLISR solution applied in each case. In consideration of these factors, particularly those outside NS Power's control, the exact expected reduction i...

AI summary The document discusses factors influencing the expected reduction in CKAIFI and CKAIDI due to FLISR implementations, noting that external factors make precise estimation difficult. It references case studies and highlights the benefits of FLISR in reducing risk, limiting customer impact, and improving feeder resilience.

Fault Location, Isolation, and Service Restoration NS POWER ASSESSMENT 2025

AI summary The document outlines NS Power's assessment related to Fault Location, Isolation, and Service Restoration (FLISR) for 2025, focusing on improving grid reliability and outage management.

Fault Location, Isolation, and Service Restoration (FLISR) provides advanced fault location and automated service restoration capabilities that reduce the impact and duration of power outages on customers. FLISR deployments are prevalent a...

AI summary Fault Location, Isolation, and Service Restoration (FLISR) is a grid modernization technology that enhances reliability by reducing outage impacts. It is prevalent in North American utilities and is being considered for deployment by NS Power in three configurations: Centralized, Decentralized, and Automated & Increased Segmentation. This aligns with NS Power's 5 Year Reliability Plan.

2.1 FLISR Technology FLISR is a system of distribution protection devices sited to allow automatic and remote reconfiguration of the distribution grid. Its purpose is to improve feeder reliability by minimizing the number of customers affe...

AI summary FLISR technology improves feeder reliability by automatically reconfiguring the distribution grid during outages. It includes automated segmentation, decentralized, and centralized approaches, each suited for different feeder configurations and grid conditions.

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 reduce outage impact and duration by improving restoration speed. Traditional methods like manual restoration and automated sectionalizers/reclosers have limitations in speed and scalability. FLISR provides faster and more precise fault isolation and restoration. Conventional P&C TCC coordination introduces delays and limits scalability.

2.3.2 System Visibility and Flexibility - Visibility and remote-control enablement of devices provides higher situational awareness for Distribution System Operators. - Robust integrations with the ADMS enhances distribution system flexibi...

AI summary The section emphasizes the importance of system visibility and flexibility through technologies like ADMS, which enhance situational awareness and coordination for Distribution System Operators, supported by real-time data and troubleshooting tools.

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) requires addressing challenges such as robust communications infrastructure, accurate ADMS grid models, training for distribution grid operators, and securing 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 Electric Power Research Institute (EPRI) is a nonprofit organization focused on electricity research and development. EPRI's research on FLISR highlights its role in improving grid reliability and efficiency, and it is presented as a sub-capability in the Distribution Automation business capability under the Operations domain in EPRI's Grid Modernization Playbook.

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) discusses the benefits of FLISR technology in improving grid reliability through the Smart Grid Investment Grant (SGIG) and the Grid Resilience and Innovation Partnerships (GRIP) Program. These initiatives aim to enhance grid performance and resilience against extreme weather.

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 Grids to improve the reliability and modernization of electricity delivery. Since 2012, NRCan has funded demonstration projects, including FLISR, and in 2025 approved NS Power's application for three grid modernization projects: FLISR, DERMS, and DI Apps.

3.1.1 Pacific Gas & Electric [7](#page-47-2) 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 unde...

AI summary PG&E has deployed FLISR technology on over 1000 feeders with support from the US Department of Energy's SGIG. Initially, a standalone FLISR system was used, but in 2023, PG&E integrated FLISR with Schneider Electric's ADMS to enhance real-time grid awareness and control.

3.1.2 Electric Power Board Chattanooga[8](#page-47-3)[9](#page-47-4) Background: EPB Chattanooga leveraged US Department of Energy SGIG funding to rollout a service territory-wide FLISR deployment. Approach: EPB deployed 1100 S&C Electric'...

AI summary EPB Chattanooga deployed 1100 S&C Electric's FLISR devices across its 600-square-mile service territory using SGIG funding to improve outage management and grid reliability.

3.1.3 Georgia Powe[r10](#page-47-5) 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 ov...

AI summary Georgia Power has implemented FLISR distribution technology on over 700 circuits, serving more than 1.2 million customers. This self-healing technology is aimed at improving grid reliability and reducing outage durations.

3.2.1 Hydro One[11](#page-48-1) 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 pivota...

AI summary Hydro One's 2023–2027 Distribution System Plan emphasizes modernizing grid operations using Advanced Distribution Management Systems (ADMS), with FLISR playing a key role in enhancing reliability and resiliency through faster restoration.

3.2.2 Oshawa Power[12](#page-48-2) 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 represent...

AI summary Oshawa Power has deployed its FLISR system since December 2021, with over 40% of their grid connected by the end of 2023. The system is part of a broader grid automation strategy to improve reliability and customer service through a two-layer approach combining centralized and decentralized components.

3.2.3 Enova[13](#page-48-3) 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 servic...

AI summary Enova utilizes the Advanced Distribution Management System (ADMS) and FLISR software to reduce the frequency and severity of unplanned power outages. These technologies automatically reroute power during faults, restoring service to customers quickly and improving overall system reliability.

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 FLISR capability is critical for grid reliability and is highlighted in NS Power's Five Year Reliability Plan. It can be deployed in various forms depending on grid conditions. Government programs like NRCan Smart Renewables Energy Pathway and US DOE Smart Grid Investment Grants support grid modernization and may provide funding for FLISR and other smart grid initiatives.

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 document discusses the implementation of three versions of FLISR technologies across four geographic areas in Nova Scotia. It requests a rationale for selecting different versions of FLISR for different feeders, a cost breakdown, and the operational cost impact on the rate base. The response explains the rationale for FLISR selection based on feeder characteristics, such as radial feeders and areas with alternative power flow sources.

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

AI summary The text discusses the importance of specific feeders in the Halifax Peninsula distribution network and their suitability for centralized FLISR and ADMS solutions to optimize outage restoration and manage system constraints.

13 Automated and Increased segmentation ($) Automated and Increased segmentation Decentralized ($) FLISR Solution ($) Centralized FLISR Solution ($) Feeder 85S-401 11S-411 137H 414 129H-412 2H-411, 421 104H 433 103H 433 Material 830,111 40...

AI summary The text presents a table comparing costs associated with different FLISR (Fault Location, Isolation, and Service Restoration) solutions, including centralized and decentralized approaches, across various feeders and cost categories such as material, consulting services, contract, labour, and travel.

Date Filed: October 2, 2025 NSPI (NSEB) IR-6 Page 1 of 1 1 Request IR-7: 2 3 Attachment 1, 2 and 3 notes that "Deficiencies in protection and/or coordination will be 4 identified and recommendations for improvements will be provided. Compu...

AI summary The document outlines a request for information regarding the FLISR solution, including GIS maps, equipment locations, and explanations of grid resilience benefits. The response indicates that FLISR improves grid resilience by reducing customer interruptions and enabling faster service restoration. No deficiencies or limitations have been identified in the planning or installation phases.

Centralized FLISR Scheme – 103H, 104H, 2H West End/Fairview

AI summary The document discusses the Centralized FLISR Scheme for specific locations in Nova Scotia, including technical components like AMI, RTUs, SCADA, and ADMS, as well as performance metrics such as SAIDI, SAIFI, CKAIFI, and CKAIDI. It also references initiatives like TCC, OCM, and programs like SGIG and GRIP.

NON-CONFIDENTIAL 1 (b) The feeders identified as problem feeders in M12185 were not selected because the impact 2 and cost-effectiveness of the chosen feeders was greater, in part due to the radial 3 configuration and existing ties. Please...

AI summary The text discusses the selection of feeders for FLISR deployment, emphasizing cost-effectiveness and impact. It notes that certain feeders were not selected due to lower impact and cost-effectiveness, while others were chosen based on criticality and customer density. The deployment is linked to an NRCan funding project for 'Automated & Increased Segmentation.'

M12417 – Nova Scotia Power Inc. - CI C0071528 – FLISR Implementation – $4,638,245 On August 6, 2025, Nova Scotia Power Inc. submitted a subsequent capital approval application in the amount of $4,638,245 to the Nova Scotia Energy Board (Bo...

AI summary Nova Scotia Power Inc. submitted a capital approval application for a FLISR implementation project, requesting $4,638,245, which is $661,003 less than the originally approved amount. The project involves smart grid technology to restore power during outages and is part of the company's 5-Year Reliability Plan.

Request IR-2: - a) How does the utility currently become aware of outages? Please explain. - b) How does the utility currently log outage data? Please explain. - c) For each feeder, please provide the percentage of customers that already h...

AI summary Request IR-2 seeks detailed information on how the utility detects and logs outages, the current AMI adoption rate per feeder, alternative outage detection methods, and why existing technologies may not be sufficient for improving outage detection or determining which substation protection device is likely to open.

Request IR-4: a) For each feeder, please elaborate, compared to Fault Location, Isolation and Service Restoration (FLISR) technology, whether any technical and cost-benefit analysis has been - conducted to reduce the propagation of outages...

AI summary Request IR-4 asks for an analysis comparing FLISR technology with other outage-reduction methods like sectionalizers and reclosers, including cost-benefit analyses, and explains why FLISR was selected over alternatives.

Request IR-6: - Page 1 of the application notes that "To complete this project, new intelligent protection and telecom equipment will be installed in strategic locations along targeted feeders, connected via telecommunications, and integra...

AI summary The document requests an explanation for why a technology that could use existing communication infrastructure was not selected for the project, which involves installing new intelligent protection and telecom equipment along targeted feeders.

Request IR-7: - Attachment 1, 2 and 3 notes that "Deficiencies in protection and/or coordination will be identified and recommendations for improvements will be provided. Computer generated log-log plots shall be provided to indicate the d...

AI summary Request IR-7 includes several technical and procedural questions related to FLISR installation, including GIS mapping, explanation of grid resilience benefits, and addressing any identified deficiencies or limitations in the project.

M12417 – Nova Scotia Power Inc. - CI C0071528 – FLISR Implementation – $4,638,245 On August 6, 2025, Nova Scotia Power Inc. submitted a subsequent capital approval application in the amount of $4,638,245 to the Nova Scotia Energy Board (Bo...

AI summary Nova Scotia Power Inc. submitted a revised capital approval application for a FLISR implementation project, requesting $4,638,245, which is $661,003 less than the originally approved amount. The project is part of the 5-Year Reliability Plan and involves deploying FLISR technologies across seven feeders in Nova Scotia.