Nova Scotia Power filed responses to three Board information requests on the $3.46M L-5532 transmission line replacement project, addressing scope, overtime labour, and contingency justification.

M12798 · Nova Scotia Power Inc. - CI C0080108 – L-5532 Replacements and Upgrades Phase 1 - $3,455,473

AI summary

IR-1 (Scope): The L-5532 project covers 75 structures on a 69 kV line — 72 full structure replacements (poles, crossarms, insulators, hardware) and 3 component replacements (conductor sleeves), with per-structure costs ranging $5K–$125K depending on structure type, insulator type, framing, and local topography; cost variances versus comparable projects C0041805 (230 kV, $75K–$190K) and C0031122 (138 kV, $40K–$148K) are attributed to voltage class differences driving larger structures and heavier loadings.
IR-2 (Overtime Labour): The $7,000 overtime allocation covers substation switching personnel who isolate the line outside regular business hours so transmission contractor crews can begin work without delay; NSPI notes each hour of contractor delay costs roughly $1,200, making internal overtime labour the lower-cost option; a portion also covers site supervision for longer days due to the line's remote location.
IR-3 (15% Contingency): NSPI applies a flat 15% contingency determined by professional engineers and field personnel drawing on past line-replacement experience; identified risks include outage-window overruns requiring additional overtime, unforeseen material or contract cost increases, and access difficulties in wet or remote locations; NSPI acknowledges it has not performed a probabilistic analysis to quantify these risks.

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What was filed

Documents filed on this day

N-2 NSPI (NSEB) RIR 1 to 3 exhibits
102073 Letter NSPI re: RIRs other_documents