Topic:"Infrastructure Planning" in M12456

DESCRIPTION: This project includes the installation of a 600-meter underground ductbank system along Robie St in Halifax, as well as the installation of a second underground 3 phase 25kV supply in the same duct work. As part of the QEII Ha...

AI summary This project involves installing a 600-meter underground ductbank system and a second 3 phase 25kV supply along Robie St in Halifax to support anticipated load growth. The work is being done concurrently with the QEII Halifax Infirmary Expansion Project to reduce costs and disruption. NS Power has a cost-sharing agreement with the QEII project for this work, expected to save approximately $2 million.

Why do this project? Based on forecasts from Halifax Regional Municipality (HRM) and developers, NS Power expects significant development and corresponding load growth within the Robie St area and downtown core. Zoning reform and streamlin...

AI summary NS Power anticipates significant development and load growth in the Robie St area and downtown core due to zoning reforms and accelerated housing projects. This growth will necessitate reconfiguration of existing distribution circuits and the development of multifeeder corridors to meet future capacity needs.

REDACTED CI C0074130 Page 2 of 11 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Given the anticipated load growth, additional electrical capacity is required to reliably serve customers. By increasing the available capacity within key corrid...

AI summary The document discusses the need for additional electrical capacity in key corridors like Robie St to meet anticipated load growth, emphasizing the importance of integrating new supply and leveraging existing and planned substation capacity.

Why do this project now? The QEII project is planning to invest in an underground supply for their hospital expansion between Jubilee Rd and Bell Rd. By leveraging the existing construction plan and proposed route of the hospital's new und...

AI summary The QEII project plans to install an underground power supply for a hospital expansion along Robie St, leveraging existing construction plans to reduce costs and avoid future traffic disruptions. This infrastructure will support new developments and future load growth, with the project expected to be energized in December 2026 and finalized in December 2027.

Why do this project this way? Currently, 3 phase power does not exist along this section of Robie Street. NS Power evaluated an overhead alternative along this corridor, but the physical constraints (i.e. clearance to buildings/proposed se...

AI summary NS Power is proposing an underground electrical infrastructure project along Robie Street due to physical constraints that make overhead alternatives unfeasible. The project will be coordinated with the QEII Expansion Project to reduce costs and provide flexibility for future capacity needs.

Contingency Statement Contingency for this project was determined through a blend of insights from internal subject matter experts, including professional engineers and field personnel with extensive experience with distribution line and u...

AI summary The contingency for the project is set at 10 percent, covering risks such as unknown civil modifications, construction conflicts, HRM restrictions, and unforeseen installation complications. These risks are identified based on internal expertise and non-binding guidelines.

Document No: XXX-XX-XXXX-XXXX Transmission Line Infrastructure Required fields: Estim ate Classifi cation Project Name: Robie Street Underground Started or Preliminary Class 5 Class 4 Class 3 Class 2 Class Maturity Level of Project Definit...

AI summary The document outlines the progress and classification details for the Robie Street Underground transmission line project, including project scope, capacity, location, technology selection, strategy, and planning aspects. It provides information on the maturity level of deliverables and various project requirements.

This project is being filed as a AACE Class 3 estimate. The defined deliverables for this project indicate that 85% of Class 3 deliverables are completed. AACE recommends applying between 10% and 30% contingency to estimates in this class....

AI summary The project is classified as an AACE Class 3 estimate, with 85% of deliverables completed. A 10% contingency was selected to address risks such as civil modifications, road restrictions by HRM, and potential installation complications.

Inclusions For the purposes of this document, the term power transmission line infrastructure industries is assumed to include greenfield or brownfield sites for overhead, buried and submarine transmission of electrical power in the infras...

AI summary The document defines power transmission line infrastructure industries as including overhead, buried, and submarine transmission of electrical power at high voltage (typically >100kV) but may include lower voltages for long-distance transmission. It excludes power supply, distribution within facilities, and generation facilities. The definition is aligned with the Construction Industry Institute's infrastructure project definition.

Underground 2025: NS Power + QEII This option levarages the existing underground work being completed by QEII now to increase the capacity of the infrastructure for additional supply for the utility. This option reduces the the cost to the...

AI summary This option involves NS Power coordinating with QEII's ongoing underground work to expand infrastructure capacity more efficiently, reducing costs and avoiding disruptions by integrating with existing hospital expansion projects.

5. OWNERSHIP The Parties acknowledge and agree that once the Project is completed and a letter of acceptance is issued by NSPI to PCL, NSPI shall take full responsibility and ownership of the underground electrical infrastructure up to the...

AI summary The Parties agree that NSPI will take full ownership of the underground electrical infrastructure after completion of the Project and issuance of a Letter of Acceptance. This ownership transfers upon full installation and inspection by NSPI.

CI C0074130 – Robie Street Underground (NSEB M12456) NSPI Responses to NSEB Information Requests 1 Request IR-1: 2 3 Page 1 of the application states "As part of the QEII Halifax Infirmary Expansion Project 4 (QEII project), a 600-meter un...

AI summary The document outlines information requests related to an underground electrical expansion project on Robie Street in Halifax, including questions about the use of overhead lines, cost-sharing arrangements, and compliance with the 1977 Underground Wiring Policy.

REDACTED 1 2 (e) A distribution Load Impact Study (LIS) was completed for the QEII development (please 3 refer to Confidential Attachment 1). There is no recently completed planning study for the 4 peninsula Halifax load growth. It should...

AI summary A Load Impact Study (LIS) was conducted for the QEII development, though no recent study exists for Halifax Peninsula load growth. The original route for the hospital supply was deemed non-constructible, and the service location changed due to building design updates. The company proceeded with the Robie Street underground project to address anticipated load impacts and avoid delays, despite the absence of a formal study.

NON-CONFIDENTIAL 1 (c) Following several iterations exploring potential overhead routes for the QEII supply, it was 2 determined that an underground solution was required to bring the two required feeders to 3 the hospital expansion area....

AI summary The Company decided to implement an underground solution for the QEII supply due to the high growth area and lack of existing 3-phase infrastructure. A cost-share arrangement was determined to be in the best interest of customers, leading to significant savings. The infrastructure installed during Phase 1 includes additional ductwork to facilitate future expansion.

CONFIDENTIAL (Attachment Only) 1 Request IR-4: 2 3 Page 1 of the application states: "NS Power will install a larger ductbank and a second 4 underground supply that is needed to support anticipated load growth in the near future due 5 to m...

AI summary The document outlines information requests related to NS Power's proposed infrastructure upgrades on Robie Street, including current load served, anticipated load growth, growth forecasts from HRM, and the impact of downtown development on the need for additional power supply.

CONFIDENTIAL (Attachment Only) 1 (ii) These forecasts account for known developments and proposed projects by year and 2 requested load demand which have been submitted to NS Power. The population 3 growth chart referenced by the Halifax P...

AI summary The text discusses NS Power's load demand forecasts and infrastructure planning, including the need for new circuit extensions to support future growth in areas like the Young and Cogswell Districts. It highlights the capacity of existing feeders and the benefits of proactive reconfiguration to address potential overloads and improve reliability.

CI C0074130 – Robie Street Underground (NSEB M12456) NSPI Responses to NSEB Information Requests

AI summary This document outlines NSPI's responses to information requests from the NSEB regarding the Robie Street Underground project, specifically related to CI C0074130 and matter number M12456.

Request IR-1: - Page 1 of the application states "As part of the QEII Halifax Infirmary Expansion Project (QEII - project), a 600-meter underground extension of 3 phase 25kV primary along Robie St in Halifax - is required, involving signif...

AI summary The document presents a regulatory inquiry regarding the QEII Halifax Infirmary Expansion Project, focusing on the need for an underground power line extension, cost-sharing arrangements, compliance with existing policies, and the impact on the existing distribution system.

Request IR-2: - Page 1 of the application states "NS Power will install a larger ductbank and a second underground supply that is needed to support anticipated load growth in the near future due to multiple planned developments which are n...

AI summary The document requests detailed information on the costs and alternatives for NS Power's infrastructure project to support load growth, including the consideration of direct-burial underground cable and the results of a distribution planning study.

Request IR-3: - a) Please describe the specific scope of work associated with Phase 1 Bell Road and Jubilee Road. - b) Please confirm the specific purpose of this work. - c) Please explain why NS Power cost shared this work with the QEII p...

AI summary Request IR-3 seeks clarification on the scope, purpose, and cost allocation of Phase 1 Bell Road and Jubilee Road work, including whether NS Power's costs have been included in the current application and if a second underground 3 phase 25 kV supply is part of the project.

Request IR-4: - Page 1 of the application states: "NS Power will install a larger ductbank and a second - underground supply that is needed to support anticipated load growth in the near future due to - multiple planned developments which...

AI summary The document contains several requests for information related to NS Power's infrastructure planning in the Robie Street corridor and surrounding areas. Topics include load growth forecasts, cost savings estimates, asset life expectancy, and project scope related to electrical reconfigurations and capacity expansion.

Request IR-9: - Page 2 of the application states: "Currently, 3 phase power does not exist along this section of Robie Street. NS Power evaluated an overhead alternative along this corridor, but the physical constraints (i.e. clearance to...

AI summary The document requests NS Power to provide an evaluation of overhead electrical infrastructure along Robie Street and whether they considered the Municipal Road right-of-way in their analysis. The current section of Robie Street lacks 3 phase power, and NS Power found an overhead approach unfeasible due to physical constraints.

Request IR-10: - Page 2 of the application states: "Alternate routes for feeder extensions have been reviewed; - however, similar physical constraints exist within those alternate routes as well." - Please provide a copy of the alternate r...

AI summary The document requests a copy of the alternate route review completed by NS Power, as Page 2 of the application mentions that similar physical constraints exist in alternate routes for feeder extensions.

Request IR-11: - Page 2 of the application states: "Additionally, the underground network would be provisioned such that it can be expanded as new developments along Robie Street and nearby occur." - a) Please explain how the underground n...

AI summary The document requests clarification on how an underground network will be provisioned for future expansion along Robie Street and the associated costs included in the current application.