Topic:"Cybersecurity" in M12499

Background and Current State The TVP Tariff program continues to demonstrate strong potential as a tool for promoting load shifting to enhance system efficiency and for engaging customers through innovative rate design. Over the past four...

AI summary The TVP Tariff program has shown strong results in load shifting and customer engagement. However, a cybersecurity incident has disrupted program administration and evaluation, requiring temporary modifications to certain tariffs. NS Power remains committed to the program's long-term viability and has implemented continuity processes for the MURB TOU Pilot Tariff.

Why is this happening? Our systems were impacted by the cyber incident earlier this year and we are still working to restore them safely and securely. While meters have continued to accurately record energy use they are unable to send that...

AI summary A cyber incident earlier this year has impacted Nova Scotia Power's systems, preventing meters from sending energy usage data to billing systems. This affects billing during peak times, and the MyEnergy Insights tool is currently unavailable as systems are being restored.

Important Update to the Critical Peak Pricing Rate Pilot Subscribe Past Issues Translate ▼ Additionally, MyEnergy Insights — an important tool to help you track your electricity usage in the winter — is currently unavailable. We continue w...

AI summary An important update regarding the Critical Peak Pricing Rate Pilot is provided, along with information about the unavailability of the MyEnergy Insights tool due to a cyber incident.

M12499 – Nova Scotia Power Inc. – Application for Approval of 2025/26 Time Varying Pricing Tariffs Nova Scotia Power Inc. applied on October 1, 2025, to extend the Time Varying Pricing (TVP) Tariffs, effective November 1, 2025. The Board p...

AI summary Nova Scotia Power Inc. applied to extend its Time Varying Pricing (TVP) Tariffs for 2025/26, delayed due to a cybersecurity incident. The Board is evaluating two options: maintaining TVP with suspended billing or fully pausing the program. NS Power argues Option A is the best path forward, while the Board seeks stakeholder input on the application.

DECISION AND ORDER Nova Scotia Power Incorporated (NS Power) applied to the Board on October 1, 2025, for approval of revisions to the 2025/26 Time-Varying Pricing (TVP) Tariffs, effective November 1, 2025. NS Power proposed no revisions t...

AI summary NS Power applied for approval of revised TVP tariffs in 2025, delayed by a cybersecurity incident that hindered data extraction and customer notifications. The Board agreed to an expedited process, and approved the tariffs with amendments. NS Power filed compliance documentation in December 2025.

2 M12499 – NSEB Letter, 324825, page 2. Question/Comment as stated in the NSEB's October 7, 2025 Letter2 NS Power's Response/Clarification NS Power did not indicate whether the TVP rates would be restored when the system functionality resu...

AI summary NS Power did not clarify whether TVP rates would be restored after system functionality resumes, expecting this by year-end. NS Power states that TVP customers will be billed at winter off-peak rates until the end of the winter TVP season, and standard non-winter rates will resume in April 2026, regardless of system restoration. This aligns with the Board's approved tariff provisions and past handling of TVP customer bills post-cyber incident.

ling be lower than prior years due to the temporary solutions, that they will not attempt recovery of this lost revenue from the ratepayers? We look forward to NS Power provides its answers in reply. The Consumer Advocate further notes tha...

AI summary The Consumer Advocate raises concerns about potential revenue loss due to temporary solutions and notes the possibility of addressing additional costs from a cybersecurity incident. They request NS Power to provide answers in reply and express gratitude for the opportunity to participate in the matter.

Revised TVP Pilot Program: In the Application, NS Power stated that the impact of the cyber security incident prevents it from proceeding with standard TVP billing or critical peak event notifications. The impact of this includes unresolve...

AI summary NS Power's Revised TVP Pilot Program is impacted by a cybersecurity incident, delaying full functionality until after November 1, 2025. NS Power proposes maintaining TVP Tariffs with suspended on-peak and critical peak event billing (Option A), while the Small Business Advocate suggests necessary procedural changes to ensure customer awareness and compliance.

- a) When did NS Power first learn that they would not have the capability to measure TVP loads? Has there been any changes in the participants, either joining or leaving, since the cyber security incident? - b) Should service to customers...

AI summary The document includes a series of questions directed at NS Power regarding TVP and CPP programs, including concerns about customer enrollment, equity, cost recovery, and the impact of a cyber security incident. It also explores potential modifications to the proposed rates and the implications of not deriving load impacts analytically.

OVERVIEW On October 1, 2025, NS Power filed an application regarding its 2025/26 TVP tariffs. In this application, NS Power explained that the cyber security incident continues to impact its systems used to administer the TVP program and p...

AI summary On October 1, 2025, NS Power filed an application for modifications to its 2025/26 TVP tariffs due to a cyber security incident affecting its systems. The application proposed temporary changes to the Domestic, Small General, and General Critical Peak Pricing (CPP) and Time of Use (TOU) Tariffs.

The SBA stated: The SBA was looking forward to hearing from NS Power about its plans for improvements in these programs during the Year 4 pilot; however, it now appears that any possibility of momentum in this direction will be negated by...

AI summary The SBA expresses concerns about NS Power's inability to track results from the Year 4 pilot and recommends an update to the Application and a technical session with intervenors. NS Power acknowledges the impact of a cybersecurity incident on the TVP program but remains committed to its approach and plans to resume stakeholder sessions once systems are restored.

Regulatory Counsel Theme Party Party Question or Comment NS Power Reply The Consumer Advocate further notes that to the extent the cybersecurity incident creates any additional costs, whether through the proposed TVP changes or otherwise,...

AI summary The Consumer Advocate mentions that if the cybersecurity incident leads to additional costs, they will address these costs in the cybersecurity matter before the Board.

41 Synapse (Board Counsel Consultant) Comments, page 3. 42 Most clearly stated by the SBA which, at pages 1-2, provided "The Application refers to the possibility of NS Power gaining the ability to issue CPP event notifications on or befor...

AI summary The document discusses NS Power's proposed approach to billing TVP customers following a cyber incident, noting that billing will revert to standard non-winter rates starting April 1, 2026, regardless of system recovery status. The SBA highlights concerns regarding the lack of commitment to a specific timeline for CPP event notifications and the absence of estimates for the TOU pilot.

46 SBA Comments, page 4. Theme Party Party Question or Comment NS Power Reply (4) Temporary Modifications and TVP Program Continuity SBA a) When did NS Power first learn that they would not have the capability to measure TVP loads? Has the...

AI summary The SBA raises questions about NS Power's ability to measure TVP loads and program continuity for the 2025-26 period. NS Power explains that the cybersecurity incident impacted AMI data retrieval, leading to a pause in new enrollments and a restriction to existing participants for continuity.

art of Option A), Synapse recommends notifying customers that off-peak rates will apply "until further notice," allowing for a mid-season return to on-peak billing if systems are restored. NS Power agrees this is ideal for the structural c...

AI summary Synapse recommends informing customers of off-peak rates until further notice, with NS Power agreeing but noting potential customer confusion. NS Power also references its October submission and Cybersecurity Incident Monthly Update M12273 regarding time-differentiated rates.

M12499 – Nova Scotia Power Inc. – Application for Approval of 2025/26 Time Varying Pricing Tariffs Nova Scotia Power Inc. applied on October 1, 2025, to extend the Time Varying Pricing (TVP) Tariffs, effective November 1, 2025. The Board p...

AI summary Nova Scotia Power Inc. applied to extend Time Varying Pricing (TVP) Tariffs for 2025/26, delayed by a cybersecurity incident. The application proposes either suspending on-peak and critical peak billing or fully pausing the TVP program. NS Power argues Option A is the only viable path to preserve program continuity and customer experience. The Board requested stakeholder input and received submissions from multiple parties.

DECISION AND ORDER Nova Scotia Power Incorporated (NS Power) applied to the Board on October 1, 2025, for approval of revisions to the 2025/26 Time-Varying Pricing (TVP) Tariffs, effective November 1, 2025. NS Power proposed no revisions t...

AI summary NS Power applied for approval of revised Time-Varying Pricing (TVP) Tariffs in 2025, delayed due to a cybersecurity incident. The Board agreed to an expedited process, and approved the tariffs with amendments. NS Power filed a compliance filing in December 2025, but customers were placed on standard offer rates due to ongoing issues from the breach.