Over 330,000 residences and businesses in the City of Ottawa and the Village of Casselman depend on Hydro Ottawa Limited (Hydro Ottawa) to supply continuous and reliable electrical service. In recent years, notably in 2018, Hydro Ottawa distribution infrastructure has been subjected to particularly extreme weather events that caused severe damages to their system. These events resulted in widespread outages and costly recoveries. In an effort to maintain reliable service in the coming years, Hydro Ottawa has retained Stantec Consulting … Read more “Distribution System Climate Risk and Vulnerability Assessment – Hydro Ottawa”

Conducted over the 2013-2015 time period, the study was overseen by the Power System Planning staff of the Ontario Power Authority, since amalgamated with Ontario’s Independent Electricity System Operator (IESO), and made use of the PIEVC Protocol, an Engineers Canada-developed engineering vulnerability assessment tool. Attachments electricity_transmission_vulnerability_-_ap240_-_sept172015_presentation (763 KB)electrical-tranmission_pievc_final-report_public (1 MB)

Attachments AECOM – RSI – Toronto Hydro – June 2015 (3 MB)

Thus, the objective of this pilot case study is to evaluate the vulnerability of selected THESL distribution infrastructure to current climate, using the Protocol, Steps 1 to 3, to structure the evaluation. The infrastructure components selected by THESL for this project are seven feeder systems from three sub-stations:  Area A Station: Three 27.6 kV feeders: A-1, A-2 and A-3;  Area B Station: Two 13.8 kV feeders: B-1; B-2;  Area C Station: Two 13.8 kV feeders: C-1; C-2. … Read more “Toronto Hydro-Electric System Public Infrastructure Engineering Vulnerability Assessment Pilot Case Study”