HomeSystem ReliabilityM12551Evidence
Topic/Matter Intersection

Topic:"System Reliability" in M12551

Matter: Nova Scotia Power Inc. - 2026 Annually Adjusted Rates (AARs)
55 passages 14 documents

System Reliability across all matters →

N-1Application - Redacted 16 passages
ONE PART TRANSMISSION REAL TIME PRICING TARIFF Page 3 of 3 p. pp. 60-61
ONE PART TRANSMISSION REAL TIME PRICING TARIFF Page 3 of 3 - (9) The customer will make all necessary arrangements and bear all costs of ensuring that its load does not unduly deteriorate the integrity of the power supply system, by reason...

AI summary The document outlines customer responsibilities to maintain power supply integrity through proper load management and adherence to written operating agreements. It also lists factors considered when assessing potential threats to the power supply system's integrity, including reliability, harmonic levels, and stability.

2026 AAR Application Appendix B1 Page 6 of 6 REDACTED (CONFIDENTIAL INFORMATION REMOVED) p. p. 63
2026 AAR Application Appendix B1 Page 6 of 6 REDACTED (CONFIDENTIAL INFORMATION REMOVED) ONE PART DISTRIBUTION VOLTAGE REAL TIME PRICING TARIFF Page 3 of 3 (9) The customer will make all necessary arrangements and bear all costs of ensurin...

AI summary The document outlines requirements for customers participating in a distribution voltage real-time pricing tariff, emphasizing their responsibility to maintain power system integrity through proper load management and adherence to a written operating agreement. Key considerations include reliability, harmonic levels, voltage flicker, and system stability.

SALES, GENERATION AND DEMAND ANALYSIS FOR THE YEAR ENDING DECEMBER 31, 2026 p. p. 98
SALES, GENERATION AND DEMAND ANALYSIS FOR THE YEAR ENDING DECEMBER 31, 2026 ( 1) DOMESTIC ( 2) SMALL GENERAL ( 3) GENERAL ( 4) GENERAL LARGE (1) MWH SALES 5,286,337,241 376,992,742 2,308,034,614 363,766,784 (2) ENERGY LINE 8.2% 8.2% 7.9% 5...

AI summary The document presents a detailed analysis of sales, generation, and demand for the year ending December 31, 2026, including metrics such as energy sales, losses, system demand, and contribution percentages across various customer classes and industrial sectors.

SPECIAL CONDITIONS p. pp. 104-105
SPECIAL CONDITIONS - (1) This tariff is designed for customers supplied and metered at the high side of the transformer at transmission voltage of 69 kV or higher. For customers metered at the low side of the transformer, or at a distribut...

AI summary The tariff outlines special conditions for customers supplied at high voltage levels, specifying adjustments for meter readings, separate service agreements, reliability requirements, and conditions for attributing capacity credit factor (CCF) values. These provisions ensure system integrity and address resource adequacy needs.

2026 AAR Application Appendix E1 Page 5 of 8 REDACTED (CONFIDENTIAL INFORMATION REMOVED) p. pp. 105-106
2026 AAR Application Appendix E1 Page 5 of 8 REDACTED (CONFIDENTIAL INFORMATION REMOVED) - (iv.) Any export transactions utilizing energy from the Internal Resource will be recallable by the NSPSO, up to the amount contracted to the wholes...

AI summary The document outlines conditions for the recall of energy from internal and external resources by the NSPSO in the event of a resource adequacy need, including requirements for documentation and control of external resources.

2026 AAR Application Appendix E1 Page 8 of 8 REDACTED (CONFIDENTIAL INFORMATION REMOVED) p. pp. 108-109
2026 AAR Application Appendix E1 Page 8 of 8 REDACTED (CONFIDENTIAL INFORMATION REMOVED) WHOLESALE MARKET NON-DISPATCHABLE SUPPLIER SPILL TARIFF Page 2 of 2 - (2) The Company reserves the right to have a separate service agreement, if in t...

AI summary The document outlines the conditions under which a separate service agreement may be required for a non-dispatchable supplier to ensure the integrity of the power supply system. It emphasizes that the supplier must make arrangements to prevent deterioration of system reliability, including considerations such as harmonic voltage, voltage flicker, and stability.

SPECIAL CONDITIONS p. pp. 130-131
SPECIAL CONDITIONS - (1) NS Power reserves the right to have a separate service agreement, if in the opinion of NS Power issues not specifically set out herein, must be addressed for the ongoing benefit of NS Power and its customers. - (2)...

AI summary NS Power reserves the right to establish separate service agreements for specific issues. LRS' RtR customers and generators must ensure their operations do not compromise the integrity of the power supply system, with specific requirements outlined in written operating agreements. Factors affecting system integrity, such as reliability and voltage stability, are considered in assessments.

EXTRA LARGE INDUSTRIAL ACTIVE DEMAND CONTROL TARIFF Page 1 of 8 p. p. 134
EXTRA LARGE INDUSTRIAL ACTIVE DEMAND CONTROL TARIFF Page 1 of 8 The Extra Large Industrial Active Demand Control Tariff (ELIADC) provides a mechanism whereby Port Hawkesbury Paper LP (PHP, the Mill, the Customer) pays the forecast incremen...

AI summary The ELIADC tariff allows Port Hawkesbury Paper LP to pay forecast incremental costs and contribute to utility costs, while granting Nova Scotia Power control over the customer's load to reduce system costs and improve reliability for all customers.

MAINTAIN SYSTEM INTEGRITY p. p. 143
MAINTAIN SYSTEM INTEGRITY PHP will make all necessary arrangements to ensure that its load does not unduly deteriorate the integrity of the power supply system, either by its design and/or operation. Specific requirements shall be stipulat...

AI summary PHP must ensure its load does not negatively impact the power supply system's integrity. Specific requirements will be outlined in a separate operating agreement, considering factors such as reliability, harmonic levels, voltage flicker, and system stability.

MAINTAIN SYSTEM INTEGRITY p. p. 159
MAINTAIN SYSTEM INTEGRITY PHP will make all necessary arrangements to ensure that its load does not unduly deteriorate the integrity of the power supply system, either by its design and/or operation. Specific requirements shall be stipulat...

AI summary PHP must ensure its load does not negatively impact power supply integrity through design or operation. Specific requirements will be outlined in a separate operating agreement, with considerations including reliability, harmonic levels, voltage flicker, and system stability.

GENERATION REPLACEMENT AND LOAD FOLLOWING TARIFF Page 4 of 5 p. p. 167
GENERATION REPLACEMENT AND LOAD FOLLOWING TARIFF Page 4 of 5 - (3) In assessing issues which might unduly affect the integrity of the power supply system the following would be considered: reliability, harmonic voltage and current levels,...

AI summary The Generation Replacement and Load Following Tariff outlines conditions for maintaining power supply integrity, customer responsibilities for special service requirements, transformer loss adjustments, and power factor maintenance requirements to ensure system reliability and proper billing.

ONE PART DISTRIBUTION VOLTAGE REAL TIME PRICING TARIFF Page 3 of 3 p. p. 170
ONE PART DISTRIBUTION VOLTAGE REAL TIME PRICING TARIFF Page 3 of 3 - (9) The customer will make all necessary arrangements and bear all costs of ensuring that its load does not unduly deteriorate the integrity of the power supply system, b...

AI summary The tariff outlines customer responsibilities to maintain power supply integrity through load management and compliance with written operating agreements. Factors affecting system integrity, such as reliability and voltage stability, are identified for assessment.

SPECIAL CONDITIONS p. p. 180
SPECIAL CONDITIONS - (1) NS Power reserves the right to have a separate service agreement, if in the opinion of NS Power issues not specifically set out herein, must be addressed for the ongoing benefit of NS Power and its customers - (2)...

AI summary NS Power retains the right to establish separate service agreements for specific issues. LRS' RtR Customers and generators must ensure their operations do not compromise the integrity of the power supply system, as outlined in written operating agreements. Factors affecting system integrity include reliability, harmonic levels, voltage flicker, and stability.

SPECIAL CONDITIONS p. p. 185
SPECIAL CONDITIONS - (1) This tariff is designed for customers supplied and metered at the high side of the transformer at transmission voltage of 69 kV or higher. For customers metered at the low side of the transformer, or at a distribut...

AI summary This section outlines special conditions for a high-voltage transmission tariff, including adjustments for metering locations, mandatory OATT service, service denial criteria, service agreements, load integrity requirements, and conditions for attributing capacity credit factor (CCF) values to wholesale customers.

WHOLESALE MARKET BACKUP/TOP-UP SERVICE TARIFF Page 5 of 6 p. pp. 185-187
WHOLESALE MARKET BACKUP/TOP-UP SERVICE TARIFF Page 5 of 6 - (iv.) Any export transactions utilizing energy from the Internal Resource will be recallable by the NSPSO, up to the amount contracted to the wholesale customer, for delivery to t...

AI summary The document outlines the conditions under which export transactions and external resources can be recalled or utilized by the Nova Scotia Power System Operator (NSPSO) to meet resource adequacy needs. Specific requirements are detailed for both internal and external resources, including documentation and contractual obligations.

WHOLESALE MARKET NON-DISPATCHABLE SUPPLIER SPILL TARIFF Page 2 of 2 p. pp. 187-190
WHOLESALE MARKET NON-DISPATCHABLE SUPPLIER SPILL TARIFF Page 2 of 2 - (2) The Company reserves the right to have a separate service agreement, if in the opinion of the Company issues not specifically set out herein, must be addressed for t...

AI summary The document outlines the Company's right to establish separate service agreements for non-dispatchable suppliers to address issues affecting the power supply system's integrity. It emphasizes the need for suppliers to ensure their generation output does not compromise system reliability and mentions the filing of the 2026 Annually Adjusted Rates Confidential Appendix I.

N-2NSPI (CA) RIR 1 to 7 - Redacted 2 passages
NON-CONFIDENTIAL
NON-CONFIDENTIAL 1 GHG emissions regulations. When one of the annual air emissions limits is relaxed, one of 2 the remaining limits becomes a binding constraint. Another challenge is posed by the 3 growing share of the non-dispatchable mus...

AI summary The text discusses challenges related to GHG emissions regulations and the impact of renewable energy integration on compliance costs. It highlights how relaxing one emission limit can create a new binding constraint and how the interaction between RES and OBPS may lead to unfair cost distribution. The planning process for generation resources is also examined, with a focus on non-dispatchable renewables and their effect on system capacity and compliance costs.

REDACTED
REDACTED 1 (e) Please provide a comparison of monthly forecast import volumes and monthly model 2 import limits for 2026. 3 4 Response IR-7: 5 6 (a) As stated in the application, due to the cyber event and ongoing recovery, a comparison 7...

AI summary The response discusses the challenges in comparing forecasted and actual import volumes due to a cyber event and ongoing recovery efforts. It highlights the factors affecting import volume variability, such as generating unit availability, transmission constraints, and market conditions, and explains the process NS Power uses to evaluate and adjust import assumptions.

N-3NSPI (IG) RIR 1 to 5 - Redacted 4 passages
Order of Interruptibility p. p. 15
Order of Interruptibility In the event an interruption call is required in order to avoid shortfalls in system electricity supply, interruptible load will be called upon to provide capacity to NS Power in the following order: - (1) Generat...

AI summary The Order of Interruptibility outlines the sequence in which interruptible load will be called upon during electricity supply shortages, prioritizing certain tariffs over others. NS Power may adjust the order if necessary, particularly when managing operating reserves.

MAINTAIN SYSTEM INTEGRITY p. p. 15
MAINTAIN SYSTEM INTEGRITY PHP will make all necessary arrangements to ensure that its load does not unduly deteriorate the integrity of the power supply system, either by its design and/or operation. Specific requirements shall be stipulat...

AI summary PHP must ensure its load does not negatively impact the power supply system's integrity. The assessment considers factors like reliability, voltage, stability, and fault levels, with specific requirements outlined in a separate operating agreement.

Order of Interruptibility p. p. 23
Order of Interruptibility In the event an interruption call is required in order to avoid shortfalls in system electricity supply, interruptible load will be called upon to provide capacity to NS Power in the following order: - (1) Generat...

AI summary The Order of Interruptibility outlines the priority sequence in which interruptible load customers will be called upon during electricity supply shortages. It specifies the order of priority for different tariffs, including Generation Replacement and Load Following, Extra Large Industrial Active Demand Control, Shore Power, and the Large Industrial Interruptible Rider Tariff.

MAINTAIN SYSTEM INTEGRITY p. p. 23
MAINTAIN SYSTEM INTEGRITY PHP will make all necessary arrangements to ensure that its load does not unduly deteriorate the integrity of the power supply system, either by its design and/or operation. Specific requirements shall be stipulat...

AI summary PHP must ensure its load does not negatively impact the power supply system's integrity. The assessment considers factors like reliability, voltage, stability, and fault levels, with specific requirements outlined in a separate operating agreement.

N-5NSPI (NSEB) RIR 1 to 14 - Redacted 2 passages
Section 3 p. p. 6
2 3 4 (c) June and July are summer months which correspond to a seasonal low in wind generation and fall within the thermal fleet maintenance window which reduces system dispatch flexibility. These situations may result in marginal costs d...

AI summary The text discusses how June and July, being summer months with low wind generation and thermal fleet maintenance, may lead to higher marginal costs despite lower summer load.

CONFIDENTIAL (Attachment Only) p. p. 6
CONFIDENTIAL (Attachment Only) 1 Request IR-6: 2 3 On page 13 of the application, Nova Scotia Power (NS Power) states that since Q4 2024, the 4 reliability of energy flowing through the Labrador Island Link (LIL) and Maritime Link 5 (ML) h...

AI summary The document includes a request for a table detailing monthly energy data from the Maritime Link (ML) from Q4 2024 to October 2025, in response to concerns about reliability improvements. The response refers to a confidential attachment that has been removed.

N-6NSPI (REI) RIR 1 to 20 - Redacted 2 passages
5.6 Standby Service Tariff; Design Principles p. pp. 83-85
5.6 Standby Service Tariff; Design Principles Standby Service fulfills two functions: - It provides to each LRS any firm dependable capacity required (in excess of the LRS's selfsupplied firm dependable capacity) to support the share of to...

AI summary The Standby Service Tariff ensures that Local Resource Suppliers (LRS) have access to firm dependable capacity and demand-based capacity to meet system adequacy requirements. This is a mandatory obligation for LRS, unlike voluntary backup service for Wholesale Market customers. The tariff is designed to provide reliability equivalent to Bundled Service customers.

5.7.1 Concern with Existing Backup Service Charge Determinant p. p. 85
5.7.1 Concern with Existing Backup Service Charge Determinant The demand charge portion of NS Power's present Wholesale Market Backup and Top-up Service tariff was reviewed for its applicability in the RtR Market. Based on NS Power's NPCC...

AI summary The document discusses concerns with the existing backup service charge determinant in NS Power's Wholesale Market Backup and Top-up Service tariff, particularly in the RtR Market. It outlines calculations for determining firm dependable capacity and the LRS responsibility based on annual system coincident peak demand.

N-13Reply Evidence - NSPI 2 passages
SPECIAL CONDITIONS p. pp. 26-38
SPECIAL CONDITIONS - (1) NS Power reserves the right to have a separate service agreement, if in the opinion of NS Power issues not specifically set out herein, must be addressed for the ongoing benefit of NS Power and its customers. - (2)...

AI summary The document outlines special conditions for service agreements under the Standby Service Tariff, emphasizing NS Power's right to establish separate agreements and ensuring that generators and load replacement service customers maintain power supply integrity. It also notes NS Power's right to apply for rate changes to the Nova Scotia Utility and Review Energy Board.

SPECIAL CONDITIONS p. pp. 30-43
SPECIAL CONDITIONS - (1) NS Power reserves the right to have a separate service agreement, if in the opinion of NS Power issues not specifically set out herein, must be addressed for the ongoing benefit of NS Power and its customers. - (2)...

AI summary NS Power reserves the right to enter into separate service agreements when necessary for the benefit of its customers. Load Replacement Service (LRS) customers and generators must ensure their operations do not negatively impact the power supply system's integrity, as outlined in written operating agreements. Factors such as reliability, voltage levels, and system stability are considered in assessing potential impacts.

N-14Compliance Filing - Redacted 9 passages
2026 AAR Compliance Filing Appendix A Page 3 of 25 REDACTED (CONFIDENTIAL INFORMATION REMOVED) p. p. 0
2026 AAR Compliance Filing Appendix A Page 3 of 25 REDACTED (CONFIDENTIAL INFORMATION REMOVED) ONE PART TRANSMISSION REAL TIME PRICING TARIFF Page 3 of 3 - (9) The customer will make all necessary arrangements and bear all costs of ensurin...

AI summary The document outlines customer responsibilities regarding load management and system integrity under the One Part Transmission Real Time Pricing Tariff. Customers must ensure their load does not negatively impact the power supply system and must comply with written operating agreements. Factors considered in assessing system integrity include reliability, harmonic levels, voltage flicker, and stability.

2026 AAR Compliance Filing Appendix A Page 6 of 25 REDACTED (CONFIDENTIAL INFORMATION REMOVED) p. p. 0
2026 AAR Compliance Filing Appendix A Page 6 of 25 REDACTED (CONFIDENTIAL INFORMATION REMOVED) ONE PART DISTRIBUTION VOLTAGE REAL TIME PRICING TARIFF Page 3 of 3 - (9) The customer will make all necessary arrangements and bear all costs of...

AI summary The document outlines customer responsibilities under the One Part Distribution Voltage Real Time Pricing Tariff, including ensuring load does not compromise power supply integrity and adherence to specific operational requirements outlined in a written agreement.

2026 AAR Compliance Filing Appendix A Page 10 of 25 REDACTED (CONFIDENTIAL INFORMATION REMOVED) p. p. 0
2026 AAR Compliance Filing Appendix A Page 10 of 25 REDACTED (CONFIDENTIAL INFORMATION REMOVED) SHORE POWER TARIFF Page 4 of 4 - (9) The customer will make all necessary arrangements and bear all costs of ensuring that its load does not un...

AI summary The Shore Power Tariff outlines customer responsibilities to maintain power supply integrity, including requirements for load management and specific operating agreements. Factors affecting system integrity, such as reliability and harmonic levels, are also addressed.

SPECIAL CONDITIONS p. pp. 0-98
SPECIAL CONDITIONS - (1) This tariff is designed for customers supplied and metered at the high side of the transformer at transmission voltage of 69 kV or higher. For customers metered at the low side of the transformer, or at a distribut...

AI summary The special conditions outlined in the tariff apply to high-voltage customers and include adjustments for metering, transmission service requirements, service denial criteria, service agreements, load integrity requirements, and conditions for attributing capacity credit factor (CCF) values. These conditions ensure system reliability and proper resource management.

2026 AAR Compliance Filing Appendix A Page 15 of 25 REDACTED (CONFIDENTIAL INFORMATION REMOVED) p. p. 16
2026 AAR Compliance Filing Appendix A Page 15 of 25 REDACTED (CONFIDENTIAL INFORMATION REMOVED) - (iv.) Any export transactions utilizing energy from the Internal Resource will be recallable by the NSPSO, up to the amount contracted to the...

AI summary The document outlines procedures for managing energy and capacity from internal and external resources in the event of resource adequacy needs. It specifies the recallability of energy from internal resources and the conditions under which external resources can be utilized, including documentation requirements for capacity and transmission.

2026 AAR Compliance Filing Appendix H Page 3 of 25 REDACTED (CONFIDENTIAL INFORMATION REMOVED) p. p. 42
2026 AAR Compliance Filing Appendix H Page 3 of 25 REDACTED (CONFIDENTIAL INFORMATION REMOVED) ONE PART TRANSMISSION REAL TIME PRICING TARIFF Page 3 of 3 - (9) The customer will make all necessary arrangements and bear all costs of ensurin...

AI summary This section outlines customer responsibilities in maintaining power supply system integrity, including requirements for load management and specific considerations such as reliability, harmonic levels, and fault levels that may impact system stability.

2026 AAR Compliance Filing Appendix H Page 6 of 25 REDACTED (CONFIDENTIAL INFORMATION REMOVED) p. p. 42
2026 AAR Compliance Filing Appendix H Page 6 of 25 REDACTED (CONFIDENTIAL INFORMATION REMOVED) ONE PART DISTRIBUTION VOLTAGE REAL TIME PRICING TARIFF Page 3 of 3 - (9) The customer will make all necessary arrangements and bear all costs of...

AI summary The document outlines customer responsibilities in maintaining power supply system integrity under a real-time pricing tariff. Customers must ensure their load does not negatively impact the system, with specific requirements outlined in a written operating agreement. Factors considered in assessing system integrity include reliability, harmonic levels, voltage flicker, and stability.

2026 AAR Compliance Filing Appendix H Page 10 of 25 REDACTED (CONFIDENTIAL INFORMATION REMOVED) p. p. 85
2026 AAR Compliance Filing Appendix H Page 10 of 25 REDACTED (CONFIDENTIAL INFORMATION REMOVED) SHORE POWER TARIFF Page 4 of 4 - (9) The customer will make all necessary arrangements and bear all costs of ensuring that its load does not un...

AI summary The Shore Power Tariff outlines customer responsibilities to maintain power supply integrity through proper load management and adherence to operating agreements. Specific factors affecting system reliability, such as harmonic levels and voltage flicker, are considered in assessments.

SPECIAL CONDITIONS p. pp. 85-90
SPECIAL CONDITIONS - (1) This tariff is designed for customers supplied and metered at the high side of the transformer at transmission voltage of 69 kV or higher. For customers metered at the low side of the transformer, or at a distribut...

AI summary This section outlines special conditions for a high-voltage transmission tariff, including requirements for meter readings, mandatory use of the Open Access Transmission Tariff (OATT), service denial criteria, service agreements, load integrity, and conditions for attributing capacity credit factor (CCF) values based on resource availability.

101197Board Order 4 passages
Preamble p. pp. 8-13
- (9) The customer will make all necessary arrangements and bear all costs of ensuring that its load does not unduly deteriorate the integrity of the power supply system, by reason of its design and/or operation. These specific requirement...

AI summary The text outlines customer responsibilities in maintaining power supply system integrity through load management and compliance with operational agreements. It also lists factors considered in assessing potential impacts on system reliability and stability.

SPECIAL CONDITIONS p. pp. 20-23
SPECIAL CONDITIONS - (1) This tariff is designed for customers supplied and metered at the high side of the transformer at transmission voltage of 69 kV or higher. For customers metered at the low side of the transformer, or at a distribut...

AI summary This section outlines special conditions for a high-voltage transmission tariff, including adjustments for metering locations, requirements for transmission service, service denial criteria, load management obligations, and conditions for billing demand calculations involving third-party generation resources.

SPECIAL CONDITIONS p. pp. 27-29
SPECIAL CONDITIONS - (1) NS Power reserves the right to have a separate service agreement, if in the opinion of NS Power issues not specifically set out herein, must be addressed for the ongoing benefit of NS Power and its customers. - (2)...

AI summary NS Power retains the right to enter into separate service agreements when necessary to protect its interests and those of its customers. Load Serving Retailers (LRS) and their customers must ensure their operations do not compromise power system integrity, with specific requirements outlined in written agreements. NS Power may apply to the Nova Scotia Energy Board for changes to rates, terms, and conditions.

MAINTAIN SYSTEM INTEGRITY p. p. 40
MAINTAIN SYSTEM INTEGRITY PHP will make all necessary arrangements to ensure that its load does not unduly deteriorate the integrity of the power supply system, either by its design and/or operation. Specific requirements shall be stipulat...

AI summary PHP must ensure its load does not negatively impact the power supply system's integrity. Specific requirements will be outlined in a separate operating agreement, with considerations including reliability, harmonic levels, voltage flicker, and system stability.

102160Board Order 2 passages
Preamble p. pp. 2-11
Effective: April 1, 2026 Nova Scotia - (9) The customer will make all necessary arrangements and bear all costs of ensuring that its load does not unduly deteriorate the integrity of the power supply system, by reason of its design and/or...

AI summary The document outlines customer responsibilities to maintain the integrity of the power supply system through operational agreements and specifies factors to be considered when assessing potential impacts on system integrity, including reliability, harmonic levels, and stability.

SPECIAL CONDITIONS p. pp. 14-16
n Nova Scotia (Internal Resource): - (i.) If the Internal Resource is dispatchable, that it can start up and deliver energy contracted to, but unused by, the wholesale customer to NSPI, if directed to do so by the Nova Scotia Power System...

AI summary The text outlines special conditions for an internal resource in Nova Scotia, specifying requirements for dispatchability, availability during resource adequacy needs, and coordination with the Nova Scotia Power System Operator (NSPSO) during critical times of the year.

100134NSEB (NSPI) IR 1 to 14 1 passage
Request IR-6: p. p. 3
Request IR-6: - On page 13 of the application, Nova Scotia Power (NS Power) states that since Q4 2024, the - reliability of energy flowing through the Labrador Island Link (LIL) and Maritime Link (ML) has - improved with only minor outages...

AI summary Nova Scotia Power (NS Power) is requested to provide a table detailing monthly energy flow through the Maritime Link (ML) from Q4 2024 to October 2025, citing improvements in reliability with only minor outages.

100153Renewall (NSPI) IR 1 to 20 - WORD 2 passages
Section 4
l and Purchased Power Model.17 17 - 2025 PLEXOS AAR F&PP model is based on the 2024 Q3 forecast F&PP model, with updated system assumptions, including commodity pricing update as of 2024-08-16. 1. In stating the above, is NS Power saying i...

AI summary The text discusses the 2025 PLEXOS AAR F&PP model used by NS Power, with assumptions based on August 2024 data. It raises questions about model accuracy, data timeliness, and the identification of highest variable cost generators. The preamble also references economic dispatch and environmental legislation, as well as forecast accuracy assessments via FAM reporting.

Section 10
1. NS Power has stated that higher SO2 emission limits have resulted in lower marginal costs. Please confirm the SO2 emissions associated with NS Power production in 2026, the applicable SO2 emission limits, and the remaining headroom unde...

AI summary The document presents a series of questions to NS Power regarding SO2 emissions, marginal costs, surplus energy delivery, and sensitivity analyses related to commodity price volatility, Muskrat Surplus Energy, and wind project delays. It also requests confirmation on the inclusion of the Goose Harbour Lake wind farm in the 2026 PHP CBL load and a comparison of marginal and average costs under different tariff scenarios.

100159CA (NSPI) IR 1 to 7 - PDF 2 passages
Request IR-2: p. p. 1
Request IR-2: Please explain whether the energy served for the GRLF, Shore Power, BUTU, Spill, and Energy Balancing Service rates is included in the load forecast used for system planning purposes and, if so, on what basis the peak demand...

AI summary The request asks whether specific energy services (GRLF, Shore Power, BUTU, Spill, and Energy Balancing Service) are included in the load forecast for system planning and, if so, how their peak demand is accounted for.

Request IR-7: p. p. 3
Request IR-7: Re: Application, p.14 and Confidential Appendix A7, identifying factors that cause actual import volumes to vary from forecast. - (a) Please provide a list of the factors, including but not limited to those identified in Conf...

AI summary Request IR-7 asks NS Power to identify factors causing variations in import volumes from forecasts, explain their impact on 2026 imports, and provide sensitivity analysis and forecast comparisons. The request also seeks details on when forecasts were developed and how factors like energy product availability and outages were considered.

101197Board Order 4 passages
SPECIAL CONDITIONS p. p. 4
SPECIAL CONDITIONS - (1) The Company reserves the right to have a separate service agreement, if in the opinion of the Company issues not specifically set out herein, must be addressed for the ongoing benefit of the Company and its custome...

AI summary The document outlines special conditions for service agreements, specifying that customers must ensure their load does not negatively impact the power supply system. It also addresses transformer losses, power factor requirements, and the financial responsibility for special metering and communication systems.

Preamble p. pp. 8-18
- (9) The customer will make all necessary arrangements and bear all costs of ensuring that its load does not unduly deteriorate the integrity of the power supply system, by reason of its design and/or operation. These specific requirement...

AI summary The document outlines customer responsibilities in maintaining power supply system integrity through load management and operating agreements. It identifies factors affecting system integrity, such as reliability, harmonic levels, and voltage flicker.

SPECIAL CONDITIONS p. pp. 20-23
SPECIAL CONDITIONS - (1) This tariff is designed for customers supplied and metered at the high side of the transformer at transmission voltage of 69 kV or higher. For customers metered at the low side of the transformer, or at a distribut...

AI summary This section outlines special conditions for a high-voltage transmission tariff, including adjustments for metering locations, mandatory use of the Open Access Transmission Tariff, service denial criteria, service agreements, load integrity requirements, and conditions for attributing capacity credit factors (CCF) to wholesale customers.

MAINTAIN SYSTEM INTEGRITY p. p. 40
MAINTAIN SYSTEM INTEGRITY PHP will make all necessary arrangements to ensure that its load does not unduly deteriorate the integrity of the power supply system, either by its design and/or operation. Specific requirements shall be stipulat...

AI summary PHP must ensure its load does not negatively impact the power supply system's integrity. Specific requirements will be outlined in a separate operating agreement, with considerations including reliability, voltage levels, stability, and fault levels.

102160Board Order 3 passages
Preamble p. pp. 2-11
Effective: April 1, 2026 Nova Scotia - (9) The customer will make all necessary arrangements and bear all costs of ensuring that its load does not unduly deteriorate the integrity of the power supply system, by reason of its design and/or...

AI summary The text outlines customer responsibilities to maintain power supply integrity through operational agreements, considering factors like reliability, harmonic levels, and voltage flicker in assessing potential impacts on the power system.

AVAILABILITY p. p. 6
AVAILABILITY - (1) This tariff is available to port authorities of Nova Scotia for the sole purpose of providing port electricity to cruise ships docked in ports to meet their own consumption needs in displacement of the on-board self-gene...

AI summary This tariff applies to port authorities in Nova Scotia for providing electricity to cruise ships, with specific demand thresholds and supply interruption requirements. It is seasonal, available from April 1 to November 30, and outlines the order in which rate classes will be called upon during supply shortfalls.

SPECIAL CONDITIONS p. pp. 14-22
SPECIAL CONDITIONS - (1) This tariff is designed for customers supplied and metered at the high side of the transformer at transmission voltage of 69 kV or higher. For customers metered at the low side of the transformer, or at a distribut...

AI summary This section outlines special conditions for a high-voltage transmission tariff, specifying metering adjustments, the requirement to use the Open Access Transmission Tariff, service denial criteria, service agreements, load integrity requirements, and conditions for attributing capacity credit factors (CCF) in demand charges.

Disclaimer: These summaries were generated by AI from the filings they describe. We take care to make them accurate, but errors are possible - and they aren't advice. Only the filings themselves are the record: if you're relying on something here, confirm it against the source documents or the Nova Scotia Energy Board's own record. Full disclaimer →