Topic:"Rate Design" in M12273

Sincerely, Weldon Young From: Painting-MacLean, Kimberly To: Painting-MacLean, Kimberly Subject: M12273 FW: NS power Date: November 28, 2025 1:21:01 PM From: Jessica Bradstock-Young Sent: November 19, 2025 12:41 PM To: Fisher, Darren - M.P...

AI summary The email expresses frustration with NS Power, citing concerns about lack of accountability, transparency, and privacy breaches, as well as the installation of smart meters that may pose safety risks. The sender requests a full audit and criticizes the company for hiding information about its leadership.

Update: Systems required for Evaluation are expected to be available by the end of 2025, with the required data for Year 4 (2024/25) Evaluation work to be Year 4 (2024/25) Evaluation available early in Q1 2026. Evaluation activities are ex...

AI summary The document outlines the timeline for the completion of the Year 4 (2024/25) Evaluation Report, expected to be filed in Q2 2026, and mentions the need for system restoration to support Time Varying Pricing (TVP) rates, including AMI meter communications and My Energy Insights.

formance in terms of advanced features and expected to be restored by the performance in order to administer TVP Rates. end of Q3 2026. October 1: "NS Power provides an annual report regarding its Time-of-Use Real Time Pricing (TOU RTP) ta...

AI summary NS Power is unable to prepare its 2025 Time-of-Use Real Time Pricing (TOU RTP) report to the NSEB due to data unavailability from May 2025 onward and missing files. The report is expected to be completed in Q2 2026 and is not expected to affect customers.

investigating the recovery of the relevant files. This is not expected to have an impact on customers." December 1: "Since NS Power’s last monthly update, NS Power has re-established the connection between Hitachi’s Portfolio Optimizer (Po...

AI summary NS Power has re-established connections between Hitachi’s Portfolio Optimizer software and its network, as well as the Plant Information data system, to restore dependent processes. These systems are essential for evaluating the ELIADC and determining the cost to serve PHP and One-Part RTP, with completion expected by January 31, 2026.

any relied on estimated bills. with all meters expected to be reconnected by the end of Notwithstanding these impacts, NS Power has implemented manual meter reading, limiting the number of estimated bills. The following metrics were not Ma...

AI summary NS Power has implemented manual meter reading to limit estimated bills, with all meters expected to be reconnected by the end of March 2026. Key metrics such as SAIDI, SAIFI, and outage reports remain unaffected.

eing billed appropriately? There is no standardized methodology for determining the impact on single-phase demand billing customers from the inability of demand registers to reset remotely. NS Power is reviewing all individual bills of the...

AI summary NS Power is reviewing the billing of 1,454 customers affected by a cyber-incident that caused the loss of remote demand reset functionality. Credits have been issued to 35 customers totaling $10,497, and 1,056 customers may face increased demand charges. Single-phase meters serve over 550,000 service locations.

, start 4 date, finish date, and percentage completion. If no progress is made from one month 5 to the next, this should also be clearly indicated along with the reasons. 6 3. A separate chart is to be provided in the Incident Report which...

AI summary The NSEB is required to report on progress tracking, including a Gantt chart of system restoration timelines and impacted Board matters. The Premier of Nova Scotia directed the NSEB to investigate NSP’s billing practices, consumer protections, system restoration timelines, financial relief options for customers, and potential financial penalties. The Company will provide vendor dues information by early February 2026.

g and compliance. That capability was recently restored. Additionally, the ability to collect, store, and analyze real-time operational data from power plants was restored. Ongoing Regulatory Matters As a result of the impacts noted above,...

AI summary The NSEB directed NS Power to adjust Time Varying Pricing (TVP) rates to align with standard offer rates due to system functionality issues, effective November 1, 2025 for Time-of-Use Tariffs and December 1, 2025 for Critical Peak Pricing Tariffs. NS Power is finalizing compliance filings and will update the Year Four TVP Evaluation Report by year-end.

• M12351 – The Company’s Dispatch Study Action Plan Quarterly Update dated June 30, 2025, advised that the incident impacted the project’s expected progress and implementation date and that the ECC Optimization Tools project schedule recov...

AI summary NS Power requested an indefinite extension to submit its 2024/25 Time-Varying Pricing (TVP) and EM&V reports due to a cybersecurity incident disrupting Advanced Metering Infrastructure (AMI) data access. The incident also impacts the upcoming TVP Season and requires stakeholder consultation for revised TVP tariffs, with Matter M11822 referenced for prior TVP rate applications.

Ongoing Regulatory Matters As a result of the impacts noted above, several matters before the Board have been affected, including: • rates-related, Page 4 of 16 October 1, 2025 C. Henwood • customer billing, • capital and ACE Plan, • finan...

AI summary The Incident has impacted multiple regulatory matters before the Board, including rates, billing, capital/ACE Plan, financial reporting, fuel adjustment mechanisms, reliability standards, and demand-side management. The Board is being updated on evolving impacts to ensure transparency.

As the Board has now requested, the identified impacts as understood to date are included in the sections that follow. Rates-Related Matters Rates-related matters have been affected by the Incident. Time Varying Pricing As noted by the NSEB...

AI summary The Incident has impacted rates-related matters, including Time Varying Pricing (TVP), Time-of-Use Real Time Pricing (TOU RTP) tariffs, and the Extra Large Industrial Active Demand Control (ELIADC) Tariff. NS Power faces data unavailability challenges for 2025 reports, though customer impact is not anticipated. NS Power will submit a proposed TVP approach and investigate missing data for ELIADC reporting.

s noted at the outset of this report, the following updates what had been provided in the second Monthly Update Report. Rates-Related Matters Rates-related matters have been affected by the Incident. Time Varying Pricing On October 28, 2025...

AI summary The Incident impacted rates-related matters, including Time Varying Pricing Tariffs and ELIADC/One-Part RTP Tariffs. The NSEB approved NS Power’s 2025/26 Time Varying Pricing Tariffs, prompting compliance measures. NS Power is restoring IT systems to evaluate ELIADC and RTP costs, essential for tariff implementation.

g and compliance. That capability was recently restored. Additionally, the ability to collect, store, and analyze real-time operational data from power plants was restored. Ongoing Regulatory Matters As a result of the impacts noted above,...

AI summary The incident disrupted the Board's regulatory capabilities, affecting rates-related matters. The NSEB directed NS Power to adjust Time Varying Pricing (TVP) rates to align with standard offer rates until system functionality is restored, with compliance filings expected by early December 2025.

Issued at Halifax, Nova Scotia, this 3rd day of December 2025. _ Crystal Henwood, Clerk of the Board Document: 326189 Date Filed: 3 December 2025 Page 1 1 Request IR-13: 2 a) Please explain the process by which the utility currently estima...

AI summary Request IR-13 asks Nova Scotia Power to explain its monthly bill estimation process and system limitations, citing Peter Gregg's November 23, 2025, testimony about the system's design for one-off situations and tuning challenges leading to overestimations.

ii. For those bills that were estimated, please provide a breakdown based on the 34 number of months since the meters associated with those bills were actually read. Document: 326189 Date Filed: 3 December 2025 Page 2 1 e) Were the bills a...

AI summary The document requests detailed breakdowns of estimated billing practices, including the number of months used for estimates and the impact of a cybersecurity incident on photo meter reads. It also inquires about overpayment refunds and references a statement by Mr. Lanteigne regarding billing discrepancies and meter read accuracy.

Activities Updated Jan 31, 2026 Rates-Related Matters

AI summary The document lists 'Rates-Related Matters' updated on January 31, 2026, indicating ongoing regulatory proceedings focused on rate-related issues in Nova Scotia's energy sector.

Year 4 (2024/25) Evaluation Report Update: Systems required for the Evaluation are available. The Year 4 (2024/25) Evaluation work is underway and is expected to be completed in Q2 2026 with the Evaluation expected to be completed and file...

AI summary The Year 4 (2024/25) Evaluation Report on Time Varying Pricing (TVP) outlines progress toward restoring systems like AMI meters and My Energy Insights. The evaluation, expected to complete in Q2 2026, depends on full system restoration by year-end to reinstate TVP rates, as directed by the Board in M12499.

expected to be restored by the end of Q3 2026. RTP report will be completed in Q2 Time of Use - Real Time Pricing Tariffs Introduced NA NA NA NA 2026

AI summary The document outlines timelines for restoring services by Q3 2026 and completing an RTP (Real Time Pricing) report by Q2 2026. It mentions the introduction of Time of Use - Real Time Pricing Tariffs in 2026, indicating a focus on rate design and tariff implementation.

2026 Data processing and PortOps Extra Large Industrial Active Demand Work continues to populate the databases associated with the PortOps software to allow for the evaluation of the ELIADC and for determining cost to serve PHP and One-Par...

AI summary The document outlines ongoing efforts to populate PortOps software databases for evaluating the ELIADC tariff and modeling cost-to-serve PHP and One-Part RTP tariffs for 2025. Preliminary modeling for RTP integrity verification is underway, with completion expected by February 28, 2026.

, 2026 Activities Updated Jan 31, 2026 Rates-RelatedStandards Performance Matters The Company is on track to reconnect customer meters with the billing systems beginning in Performance Standards Introduced NA NA NA NA December 2025, with a...

AI summary The document outlines updates to rates-related performance standards and interconnection processes. Key activities include reconnecting customer meters to billing systems starting December 2025, completing by March 2026, and introducing an Affiliate Code of Conduct in Q1 2026.

Monthly Cybersecurity Update 6 Attachment 2 Page 1 of 6 Report 2 - Report 3 - Report 4 - Report 5 - Report 6 - Forecast Restoration of Normal Affected Regulatory Matters October 1 November 3 December 1 February 4 March 4 Activities Latest...

AI summary The document includes a monthly cybersecurity update and references 'Affected Regulatory Matters,' with a focus on 'Rates-Related Matters' listed under the regulatory proceedings. The latest update was dated February 28, 2026, indicating ongoing regulatory activities related to rates.

Year 4 (2024/25) Evaluation Report expected to be completed and filed Systems required for the Evaluation are available. The Year 4 (2024/25) Evaluation work is underway and is expected to be completed in Q2 2026 with the Evaluation Report...

AI summary The Year 4 (2024/25) Evaluation Report is underway, expected to be completed in Q2 2026 and filed per Board direction in M12499. The report includes updates to Time Varying Pricing mechanisms.

of Q3 2026. RTP report will be completed in Q2 Time of Use - Real Time Pricing Tariffs Introduced NA NA NA NA No new update 2026

AI summary The document outlines the completion of the RTP (Real Time Pricing) report in Q2 2026 and notes that no updates have been made to the Time of Use - Real Time Pricing Tariffs since their introduction, with no new developments expected by 2026.

Year 4 (2024/25) Evaluation Report expected to be completed and filed in Q2 2026. Time Varying Pricing Introduced Updated Updated Updated Updated NA No new update All Systems required for the administration of TVP Tariffs expected to be re...

AI summary The document outlines the Year 4 (2024/25) Evaluation Report, noting updates to Time Varying Pricing (TVP) mechanisms and the expectation that all systems for TVP tariff administration will be restored by Q2 2026. It highlights ongoing efforts to implement and refine TVP strategies.

expected to be restored by the end of Q3 2026. RTP report will be completed in Q2 Time of Use - Real Time Pricing Tariffs Introduced NA NA NA NA NA No new update 2026 Extra Large Industrial Active Demand PortOps modelling for the 2025 Intr...

AI summary The RTP report is expected to be completed in Q2 2026, with the ELIADC Tariff Annual Report (M12768) filed by the Company on March 26, 2026. The Time of Use - Real Time Pricing Tariffs were introduced but have not been updated.

Monthly Cybersecurity Update 7 Attachment 2 Page 4 of 5 Report 2 - Report 3 - Report 4 - Report 5 - Report 6 - Report 7 - Forecast Restoration of Normal Affected Regulatory Matters October 1 November 3 December 1 February 4 March 4 March 3...

AI summary The document outlines a monthly cybersecurity update and lists affected regulatory matters, including 'Rates-Related' and 'Affiliate Code of Conduct Matters,' with updates dated March 31, 2026. It references ongoing regulatory processes but does not provide detailed analysis or arguments.

Cybersecurity Incident - Monthly Update 8 Attachment 2 Page 1 of 5 Report 2 - Report 3 - Report 4 - Report 5 - Report 6 - Report 7 - Report 8 - Forecast Restoration of Normal Affected Regulatory Matters October 1 November 3 December 1 Febr...

AI summary The document outlines a cybersecurity incident update impacting regulatory matters, including 'Rates-Related Matters' under ongoing proceedings. It references monthly reports and a forecast for restoring normal activities, with the latest update dated May 11, 2026.

Year 4 (2024/25) Evaluation Report expected to be completed and filed in Q2 2026. Time Varying Pricing Introduced Updated Updated Updated Updated NA NA No new update All Systems required for the administration of TVP Tariffs

AI summary The Year 4 (2024/25) Evaluation Report is expected to be completed and filed in Q2 2026. Time Varying Pricing (TVP) was introduced and updated across multiple years, with all systems required for TVP Tariffs administration.

expected to be restored by the end of Q3 2026. RTP report will be completed in Q2 Time of Use - Real Time Pricing Tariffs Introduced NA NA NA NA NA NA No new update 2026

AI summary The document outlines a restoration timeline expected by Q3 2026 and mentions the completion of an RTP (Real Time Pricing) report in Q2 2026. It references Time of Use - Real Time Pricing Tariffs introduced in 2026, though details are sparse.

The following projects experienced adjustments to their completion timeline. An overview of the changes and associated rationale is outlined below: Pillar Project Summary of Change Rationale Time Varying Pricing Introduced Updated Updated...

AI summary The timeline for the Time Varying Pricing (TVP) project has been adjusted, with systems expected to be restored by the end of Q3 2026. The Year Four Evaluation Report will be filed by June 30, 2026, and the Year Five Evaluation Report by July 31, 2026. A Kick-off Season and Technical Season are scheduled for June 2026 and July 2026, respectively.

The following projects experienced adjustments to their completion timeline. An overview of the changes and associated rationale is outlined below: Pillar Project Summary of Change Rationale Time Varying Pricing Introduced Updated Updated...

AI summary The timeline for projects under the Time Varying Pricing (TVP) pillar has been updated. Key changes include the restoration of systems for TVP Tariff administration by Q3 2026 and the filing of evaluation reports by mid-July 2026. These updates align with the 2026-2027 GRA (M12451) and stakeholder engagement plans.

The following projects experienced adjustments to their completion timeline. An overview of the changes and associated rationale is outlined below: Pillar Project Summary of Change Rationale Time Varying Pricing Introduced Updated Updated...

AI summary The document outlines adjustments to the completion timeline for various projects, including updates to the Time Varying Pricing (TVP) program, with specific changes to EM&V reports and stakeholder engagement. The Time of Use - Real Time Pricing Tariffs project is expected to complete its 2026 report in Q4 2026.