Topic:"Cybersecurity" in M12438

11 Table 6: Existing Residential EXISTING RESIDENTIAL (2025) Existing Residential Energy Savings (GWh) Demand Savings (MW) Expenditure ($ million) Unit Cost ($/kWh) 2025 Plan as Approved 60.6 10.2 23.6 0.39 2025 Year-end forecast 36.8 10.0...

AI summary The 2025 forecast for Existing Residential energy savings falls below approved targets due to the paused Residential Behaviour program, impacted by NS Power's cybersecurity incident and lack of AMI data. Revised participant savings expectations further reduced energy savings.

Residential Behaviour Highlights - Residential Behaviour achieved 2.3 GWh of energy savings in Q2, before the program component was paused indefinitely in May 2025 due to a cybersecurity incident at NS Power that has resulted in NS Power b...

AI summary Residential Behaviour achieved 2.3 GWh savings in Q2 before being paused indefinitely in May 2025 due to a NS Power cybersecurity incident blocking AMI data transfers to E1. E1 cannot generate customer reports or measure usage changes without the data, leading to uncertainty in program targets and year-end forecasts. E1 and NS Power are discussing system restoration timelines, but no firm dates exist yet.

1 Request IR-01: 2 3 The Board notes EfficiencyOne's (EOne) explanation that performance in the Residential 4 Behaviour Program was impacted by the cyber incident at Nova Scotia Power, which affected 5 the delivery of program communication...

AI summary The Nova Scotia Energy Board (NSEB) is asking EfficiencyOne (EOne) about the impact of a cyber incident at Nova Scotia Power on the Residential Behaviour Program's performance and energy savings targets. EOne acknowledges the disruption caused by the incident, which paused the program indefinitely, but expects to meet the 7 GWh energy savings target for the 2025 DSM Plan period. The Board also inquires about the unchanged program costs despite reduced energy savings.

Mr. Stephen McGrath, K.C. Chair, Nova Scotia Energy Board 3rd Flood, Summit Place 1601 Lower Water Street Halifax, Nova Scotia, B3J 3P6 August 21, 2025 Dear Chair McGrath: EfficiencyOne (E1) is submitting this update to the Nova Scotia Ene...

AI summary EfficiencyOne (E1) informs the Nova Scotia Energy Board that the Residential Behaviour Program was suspended due to a NS Power cybersecurity incident disrupting AMI data transfers. Without this data, E1 cannot generate customer reports or track program savings, risking 2025 targets. Discussions with NS Power and the delivery partner focus on cost management and resuming operations once data flows resume.

August 26, 2025 [[email protected]](mailto:[email protected]) Stephen MacDonald President and Chief Executive Officer EfficiencyOne 230 Brownlow Avenue, Suite 300 Dartmouth, NS B3B 0G5 Dear Mr. MacDonald: M12438 – Eff...

AI summary The Board acknowledges EfficiencyOne's concerns regarding a cybersecurity incident at NS Power, which caused a suspension of EfficiencyOne's Residential Behaviour Program due to lost customer data access. This suspension is expected to hinder EfficiencyOne's ability to meet 2025 program targets, with no confirmed timeline for data restoration.

Request IR-1: - The Board notes EfficiencyOne's (EOne) explanation that performance in the Residential - Behaviour Program was impacted by the cyber incident at Nova Scotia Power, which affected the - delivery of program communications and...

AI summary The Board acknowledges EfficiencyOne's (EOne) explanation that a cyber incident at Nova Scotia Power disrupted its Residential Behaviour Program in 2024/2025, affecting energy savings. The Board questions whether EOne can meet the 7 GWh target, and why program costs remain unchanged despite lower savings, seeking details on cost structures and cost-effectiveness measures.