NS Power filed rebuttal evidence in M12861 accepting several intervenor recommendations on its 2026 Load Forecast while defending its hybrid heating forecast and requesting Board acceptance of the Report as filed

M12861 · Nova Scotia Power Inc. (NSPI) - 2026 Load Forecast Report

AI summary

NS Power accepted or partially accepted the majority of Synapse's ten recommendations, including commitments to engage a third-party consultant for a bottom-up Forecasting Methodology EV forecast for 2027, remove modelled PHEV charging from DCFC and workplace L2 peak modelling, and improve heat-pump calibration documentation in the 2027 Load Forecast Report
NS Power rejected the Consumer Advocate's Recommendation 2, which called for immediate rejection of the residential hybrid heating forecast, arguing the methodology was validated by Synapse and the Net Zero Atlantic Hybrid Heating Working Group as reasonable, and that the peak impact (-48 MW by 2036) is consistent with prior forecasts informed by the E3 Hybrid Scenario from the 2022 Evergreen IRP
On Advanced Metering Infrastructure integration, NS Power clarified that a residential electric heating load shape derived from AMI data was used to inform hybrid heating assumptions in the 2026 forecast, but cautioned that full AMI integration into load forecasting is a long-term, incremental process
NS Power declined Synapse's Recommendation 10 to replace the uniform 10-year Demand Side Management savings accumulation window with a vintage-based persistence model, citing lack of measure-level data from EfficiencyOne and a prior failed statistical test (Matter M10569) where DSM demand savings produced a counterintuitive positive regression coefficient
NS Power committed to incorporating data from E1's accelerated DSM Potential Study and the IESO-NS Integrated Resource Plan into the 2027 Load Forecast for hybrid heating, DLC, BNI curtailment, and EV assumptions, and will work with IESO-NS on the future structure of Load Forecast Report submissions

Disclaimer: This summary was generated by AI from the filings it describes. We take care to make it accurate, but errors are possible - and it isn'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 →

What was filed

Documents filed on this day

N-10 Rebuttal Evidence - NS Power exhibits