N-1Report
7 passages
Winter Net Wholesale Market Participant Fuel Type Capacity 9 8F (MW) Backup Top-Up (BUTU) 10 9F Wind [Ellershouse] 1110F 4.2 Total 4.2 3 4 3.1.1 Maximum Unit Capacity Rating Adjustments 5 6 As a member of the Maritimes Area of the Northeas...
AI summary NS Power complies with NERC MOD-025-2 standards for generator capacity verification, referencing a NSUARB decision (M09940) using 18% ELCC for wind. The Ellershouse wind farm (owned by AREA) is part of the BUTU tariff, which includes municipal loads in specific communities. NS Power updates capacities annually in its 10-Year System Outlook.
Page 28 of 67 2024 10-Year System Outlook Non-Confidential 1 4.0 QUEUED SYSTEM IMPACT STUDIES 2 3 Figure 12 below provides the location and size of the generating facilities currently in the 4 Combined Transmission & Distribution (T&D) Adv...
AI summary The document outlines the current status of generating facilities in the Combined Transmission & Distribution Advanced Stage Interconnection Request Queue as of June 24, 2024, highlighting their location, size, and progress through the interconnection process.
NRIS Executed 10 - T 598 13-May-21 Cumberland 2.52 2.52 37N Tidal 30-Jun-24 GIA NRIS Executed 30 The in-service dates listed reflect the milestone dates specified in the interconnection agreement with the Interconnection Customer associate...
AI summary The document outlines the NRIS (Network Resource Interconnection Service) with details such as execution dates, location, capacity, and interconnection agreements. It also references the 2024 10-Year System Outlook and includes information about interconnection requests, including in-service dates and statuses.
33 - D 712 05-Jul-23 Halifax 0.30 0.30 139H- Solar 31-Oct-23 SIS N/A 411 Complete 34 - T 739 20-Sep-23 Queens 90.00 90.00 L-6025 Wind 31-Dec-25 SIS in NRIS Progress 35 - T 742 13-Oct-23 Guysboroug 35.00 35.00 L-7003 Wind 01-Jan-25 SIS in N...
AI summary The text presents a list of projects with details such as project identifiers, locations, dates, capacities, and statuses. These projects are primarily related to solar and wind energy, with some involving interconnection agreements and system integration services.
nductor span while recording ambient temperature. This enables the NSPSO to confirm 3 that the rating of each line is appropriate. 4 5 7.4 New Large-Load Customer Interconnection Requests 6 7 NS Power continued to receive large-load reques...
AI summary The document discusses the handling of new large-load customer interconnection requests by NS Power in 2023, including the completion and ongoing assessment of various studies for projects ranging from 1 MVA to 900 MW. It also describes the Reliability Tie, a proposed 345 kV AC transmission line between Nova Scotia and New Brunswick, aimed at improving system reliability and supporting renewable energy integration.
d customers 27 have also submitted generation interconnection requests for transmission system connections of 28 1024 MW of renewable generation (wind) with future requests anticipated to exceed 700MW 29 including potential behind the mete...
AI summary The document mentions that customers have submitted generation interconnection requests for 1024 MW of renewable generation (wind), with future requests expected to exceed 700 MW, including potential behind-the-meter connections for wind, solar, and BESS.
1 NS Power is conducting Load Impact Studies and System Impact Studies for these projects based 2 on the assumption that the operation of the hydrogen/ammonia plants will be scheduled by the 3 customer based on scheduled generation output...
AI summary Nova Scotia Power is conducting load and system impact studies for hydrogen/ammonia projects, assuming customer-scheduled operations. They also completed a study on integrating inverter-based resources like wind, identifying technical challenges and the need for grid support as legacy plants are phased out. Recommendations include model requirements and grid studies for new IBRs.
N-3NSPI (NSUARB) RIR-1 - RIR-18
8 passages
1 (b) With respect to SIS Group 32, EMT analyses are designed to examine the following issues, 2 leading to corresponding findings: 3 4 • Inertia Requirements: 5 6 Inertia requirements have been specified to enable very high penetrations o...
AI summary The text outlines EMT analyses for SIS Group 32, addressing inertia requirements for high wind penetration, grid integration studies requiring updated PSCAD models, and facility validation against grid code. It highlights the need for multiple model iterations and collaboration with project teams.
Transmission System Interconnection Requirements (TSIR). There has been good 29 cooperation with all project teams and their vendors to get the models working and 30 meeting grid code and we will be looking to ensure that all models accura...
AI summary NSPI emphasizes cooperation with project teams to ensure models meet grid code, benchmark PSCAD models against commissioning results, and enforce compliance with TSIR. Deficiencies require remediation, including reactive power and inertia support equipment.
1 Request IR-13: 2 3 Reference the following statement on page 61: 4 5 IBRs can be used to support a grid Short Circuit Levels but additional 6 equipment (synchronous condensers, Static Var Compensator (SVC)s or other 7 fast acting reactiv...
AI summary The document discusses the impact of Inverter Based Resources (IBRs) on grid short circuit levels and the need for additional equipment to maintain voltage stability. It references ongoing studies and the potential for refining transmission system interconnection requirements to better support wind energy integration in Nova Scotia.
2024 10-Year System Outlook Report (NSUARB M11764) NSPI Responses to NSUARB Information Requests NON-CONFIDENTIAL 1 As posted on NS Open Access Same-time Information System (OASIS), TSIR Section 7.6.7 2 requirement to provide 3 MWs per ins...
AI summary NSPI is responding to NSUARB information requests regarding the 2024 10-Year System Outlook Report. The response discusses updates to inertia requirements for interconnection projects, particularly for facilities in weak grid areas or near existing IBR facilities. Large-scale system studies are ongoing to determine the scope and procurement process for inertial response facilities needed to support high integration of wind and IBR.
lead to cascade tripping for loss of the NS/NB tieline under high import conditions. It should be noted that when NSPI stays connected to the Eastern interconnection the RoCoF will be low. • Survey NSPI existing legacy generation plants an...
AI summary The text discusses concerns related to frequency control and system strength, particularly focusing on the risk of cascade tripping under high import conditions. It highlights the need to assess NSPI's legacy generation plants and DER for RoCoF ride through capabilities, and recommends updates to interconnection requirements and grid code compliance.
culations are performed considering specific IBR connection location while the inertia requirements are estimated more at a system level. For System Strength Analysis, the following criteria is used: • Maintain SCR of at least 3 at existin...
AI summary The document discusses system strength analysis and frequency control criteria, focusing on maintaining system stability with IBR connections, SCR requirements, and assessing impacts of retiring units and new interconnections on system strength and power quality.
oncepts and technology such as grid-forming inverters, virtual synchronous machines, synthetic inertial response must be evaluated on a case-by-case basis as part of the EMT study work. 4.4.4 IBR SCR As noted in Section 4.4.3, SCR has limi...
AI summary The document discusses the evaluation of grid-forming technologies and the importance of Short Circuit Ratio (SCR) in assessing the impact of Inverter-Based Resources (IBR) on the grid. It highlights the need for case-by-case analysis and system studies to determine grid support requirements as the energy mix evolves.
time data needs may increase substantially and real time calculations for inertia and SCMVA at critical buses may need to be visible to Transmission Operations staff. • Distributed Energy Resources Increases in the total MW of DER and othe...
AI summary The document outlines potential challenges and recommendations related to system strength, distributed energy resources, protection and control, motor load customers, and transformation in the context of grid modernization and increasing renewable energy integration.
N-5NSPI (SWEB) RIR-1 to RIR-5
8 passages
2024 10-Year System Outlook Report (NSUARB M11764) NSPI Responses to SWEB Information Requests NON-CONFIDENTIAL 1 Request IR-2: 2 3 Based on publicly available sources, several awarded RBP projects will achieve commercial 4 operation later...
AI summary NSPI attributes delays in RBP project interconnections to global supply chain issues. To address this, NSPI highlights the use of Engineering & Procurement (E&P) agreements under the GIP, allowing early procurement of long-lead equipment for Green Choice projects to avoid similar delays.
reement that authorizes the 26 Transmission Provider to begin engineering and procurement of long lead-time 27 items necessary for the establishment of the interconnection. 1 28 1 https://www.nspower.ca/docs/default-source/pdf-to-upload/re...
AI summary NS Power faced delays due to incomplete Electromagnetic Transient (EMT) models from Interconnection Customers. To address this, NS Power implemented model quality requirements on its OASIS site, mandated Model Quality Tests, and expanded its Transmission Planning team. These measures, combined with industry experience, are expected to shorten study timelines for interconnection projects.
2024 10-Year System Outlook Report (NSUARB M11764) NSPI Responses to SWEB Information Requests NON-CONFIDENTIAL 1 Request IR-3: 2 3 Based on the publicly available Green Choice RFP documents, the procurement anticipates 4 that the awarded...
AI summary NSPI responds to SWEB's IR-3 request, stating Green Choice projects are expected to achieve commercial operation by late 2028, aligning with procurement timelines. The CPI Adjustment Period ends in 2027 to incentivize early delivery. NSPI confirms projects can interconnect in 2027 if desired, based on procurement administrator timelines.
urement RFP timelines (established 19 by the Green Choice procurement administrator) 1 and therefore be available for Winter 2028/2029, 0F 20 demonstrating alignment between the 2024 10-Year System Outlook and the Green Choice RFP. 21 At t...
AI summary NSPI confirms alignment between the 2024 10-Year System Outlook and Green Choice RFP timelines, with no anticipated delays in Commercial Operation Dates (COD). Project CODs depend on interconnection design and Network Upgrade requirements per NSUARB-approved Generator Interconnection Procedures (GIP). General connection timelines cannot be guaranteed due to GIP compliance requirements.
NSPI (SWEB) IR-3 Page 2 of 2 2024 10-Year System Outlook Report (NSUARB M11764) NSPI Responses to SWEB Information Requests NON-CONFIDENTIAL 1 Request IR-4: 2 3 What is the impact of new generation for hydrogen production on NSP’s ability...
AI summary NSPI explains that hydrogen production projects may impact NSP's 2030 clean energy targets, particularly regarding transmission interconnection capacity for wind projects. The document highlights concerns about 'queue squatting' in the GIP/GIA process, where projects lock up interconnection capacity without meeting in-service dates. NSPI notes system impact studies for hydrogen projects depend on renewable generation schedules.
1 capacity needed to support adequate interconnection service will be studied and determined as part 2 of the Generator Interconnection Procedures (GIP). 3 4 Generation resources associated with the hydrogen facilities that connect to the...
AI summary The document outlines Nova Scotia Power Inc.'s (NSPI) Generator Interconnection Procedures (GIP), emphasizing compliance for hydrogen facilities and other projects. It notes NSPI's 3,000 MW transmission reservation, strict GIP timelines for interconnection requests, and requirements for Generator Interconnection Agreements (GIA), including equipment orders and financial assurances for network upgrades.
Upgrades associated with their project. In this way, any Network Upgrades that may also be needed 24 for lower queued projects can be built regardless of the in-service date for the original generating 25 facility. 26 27 Section 17 of the...
AI summary The text outlines Section 17 of the GIA, which allows non-compliant projects to be placed into Default if milestones are missed, with a 30-day cure period. It also references NSPI's responses to SWEB's information requests regarding the 2024 10-Year System Outlook Report (NSUARB M11764).
1 Request IR-5: 2 3 In Section 7.9.1, it is stated that “When the second NS/NB tie is in service, the RoCoF constraint 4 will be removed.”. Does this statement imply that the requirement for IBRs to provide inertia 5 support of 3 MW-s per...
AI summary The response clarifies that removing the RoCoF constraint with the second NS/NB tie does not eliminate the 3 MW-s per MVA inertia requirement for IBRs. The 3 MW standard ensures wind facilities remain online during disturbances, unrelated to RoCoF management. Without inertial support near the POI, SCR issues could cause tripping, impacting both new and existing facilities.