Nova Scotia Power filed responses to NSEB Information Requests IR-5 and IR-6 in the Pelley DRO billing appeal, explaining its premises-based consumption estimation methodology and disclosing a billing reconciliation error caused by a program code change on October 8, 2025.

M12714 · NSPI DRO Appeal - Billing Issues - Jessica Pelley

AI summary

In response to IR-5, NS Power explained that its Customer Information System (CIS) uses a premises-based estimation methodology — drawing on historical usage tied to the service address rather than the individual customer — which is why pre-Pelley billing history was included in estimating her June 2025 consumption (Exhibit P-9, IR-5(a)(i)).
The CIS estimation algorithm searches for bills sharing the same bill period identifier and season, pulling however many qualifying historical bills exist; this accounts for why fewer reference bills were used for August, October, and December 2025 estimates (IR-5(a)(ii) through (d)).
In response to IR-6, NS Power confirmed the October 2025 bill was intended to reconcile previously estimated charges from June and August 2025, but a program code change implemented October 8, 2025 caused a reconciliation error that resulted in Ms. Pelley being billed for only 578 kWh (August–October period) rather than the full 1,478 kWh from April through October (IR-6(a)).
NS Power disclosed that affected accounts were identified and corrected where the error was not in the customer's favour; however, because the error in Ms. Pelley's case was in her favour, her account was not corrected at that time (IR-6(a)).

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What was filed

Documents filed on this day

P-9 NSPI (NSEB) Second Set - RIR-5 to RIR-6 exhibits