Assessing Climate Change Vulnerability in Ontario’s Electrical Transmission Sector 2017-2018 Ontario Regional Adaptation Collaboratives Webinar Series December 5, 2017 Ontario Climate Consortium The OCC was established in 2011 as a centre of expertise providing research and analysis services to municipalities, conservation authorities, and the broader public sector. [...] Secretariat (hosted by TRCA): • Christine Tu, Manager • Glenn Milner, Project Manager • Ian McVey, Project Manager • Frances Delaney, Analyst • Jenessa Doherty, Coordinator Communications and Engagement Project Context Major Transmission Projects Under Development Across Ontario Source: Ontario Long-term Energy Plan (2017) 3 Project Context, cont’d Worldwide Natural Catastrophes – 1980-2015 Source [...] Review - Deterministic - Robust system design 11 PIEVC Risk Workshop Results Heterogeneity of electric power system a challenge for determining tolerance thresholds Continuous, iterative consultation and interdisciplinary teams are critical Adaptation planning more than asset “hardening” – Responses to climate change include planning, operations, monitoring and maintenance 12 Triple Bottom Line: O [...] Northern community supplied by single circuit 115 kV line; Low 3 Voltage Redirection 500 kV transmission corridor carrying supply from major nuclear 4 facility; Asset Hardening Northern communities supplied by 115 kV transmission; 5 Twinning, Redundant Design Northern communities supplied by 115 kV transmission; Local 6 Generation 15 It’s a Question of Balance What would you say is the correct bal [...] Adjusting Economic Emphasis for most promising alternatives 18 Recommendations • Improved monitoring, recording, study of high impact climate parameters – Important event types (ice, wind) are ones w/ poor historical records & CC projections • Forensic assessment of various component types – climate load resilience unknown – E.g., “four-wire bundles” 500 kV lines 19 Recommendations • Survey transm
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