Nova Scotia Power filed a work order application seeking UARB approval for $473,599 in capital expenditures to replace deteriorated 25kV underground cables on circuits 1H-403 and 1H-405 in downtown Halifax, the first phase of a five-year replacement program.

M03512 · CI# 38903 - P-128.10 - NSPI WO - Halifax UG Cable Replacement - $473,599

AI summary

Nova Scotia Power filed CI# 38903 (Project D301) for replacement of approximately 2.8 km of 25kV underground cable between the Water Street Substation and Scotia Square on feeders 1H-403 and 1H-405, at a project estimate of $473,599 — below the ACE 2010 budget of $592,567, with variance primarily attributable to lower NSPI labour and overhead than originally estimated (Variance Summary, Approval Sheet).
Justification for the project is the deterioration of cables installed in the early 1970s, which have reached their estimated 35-year useful life; the supporting Distribution Capital Investment Report (drafted October 5, 2009) assessed all four aging downtown feeders (1H-403, 1H-405, 1H-419, 1H-431) covering approximately 18,620 m of cable over 30 years old (Section 1.0, 5.1).
The five-year replacement program sequences radial sections first (2010–2012) followed by loops and ties (2013–2014), with 2010 work also including removal of 1,000 m of old PILC cable on Granville Street; all work is to be performed by internal NSPI forces except traffic control (IR-D10 Response, Section 8.0).
The planning report evaluated cable replacement against cable injection options, concluding via Replacement Chain Method (at 8% discount rate) that full replacement ($1,238,000 NPV over 40 years) was cost-competitive with TCI injection ($1,265,197 over two 20-year cycles) and more costly than Novinium injection ($823,314 with 40-year warranty), while noting injection risks including non-standard hardware and warranty coverage gaps (Section 7.0, Table 7.3).
The 2010 cost breakdown is: Materials $274,320 (primarily underground cable); Labour $102,654; Administrative Overheads and Interest $97,743; Contracts $26,181; Salvage credit $(27,500); Other $201 (Approval Sheet cost breakdown).

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-1 Redacted Work Order 9/2/2010 exhibits