Panel Discussion: Planning for Today and Tomorrow Moderator: Chuck Farmer, Director, Stakeholder and Panelists: Public Affairs, IESO David Short, Power System Assessments, IESO Ahmed Maria, Senior Manager, Transmission Integration, IESO Angelo Boschetti, Supervisor, Engineering Department: Generation and Capacity Planning, Toronto Hydro Robert Reinmuller, Director, System Planning, Hydro One
GTA and Central Ontario Regional Forum Operations Perspective David Short Director, Power System Assessments December 11, 2017
Overview 2
Operating challenges Under peak load conditions, this area can be exposed to low voltages and thermal overloads requiring capacitors to be placed into service and generation to be dispatched. On occasion, load transfers may be required in Metro Toronto region. Under light load periods this area can be exposed to high voltages. 500 kv circuits along the Bowmanville SS to Lennox TS corridor have had to be taken out of service as a control action. Under high imports from New York Niagara interconnection, 230 kv circuits with the Hamilton to Burlington area may become congested. 3
Toronto Zone Historical Operating Conditions 2014-2017 Summer Total Energy (June-Aug) Summer Peak Demand Annual Energy 2014 2015 2016 2017 13.1 TWh 13.2 TWh 14.3 TWh 12.9 TWh 8723 MW 9229 MW 9649 MW 8619 MW 51.5 TWh 51.2 TWh 51.4TWh - 4
Greater Toronto and Central Ontario Near-term Outlook Transmission transfer capability in Toronto and Central area is expected to be sufficient for the purpose of serving load, with sufficient margin to allow for planned outages. Metro Toronto Manby East or Manby West TS loading Copeland TS is expected to be completed in 2018 GTA North Increased Vaughan loads GTA East Clarington TS will help improve the reliability of central and eastern GTA once Pickering retires High voltages are an issue during low transfer levels on the 500 kv transmission system 5
Toronto Zone Summer 2018 Capacity and Energy Picture Capacity Picture - Normal peak demand forecast for July 2018 is 9,414 MW - Internal supply for July 2018 is 6,712 MW Energy Picture - Energy demand forecast for July 2018 is 4,644 GWh. - Internal energy capability for July 2018 is 4,789 GWh. 6
Appendix: Peak Demand in Toronto Zone Annual Peak Toronto Zonal Demand (MW) 7
Appendix Toronto Zonal Demand 2014 to 2017 8
Planning of the Ontario Electricity System Ahmed Maria, IESO December 11, 2017
Ontario s Electricity Sector Participants Regulation Transmission Planning, Market & System Operation Five Nations & others Ontario Electricity System and its Customers Distribution Generation Customers & other generators Hydro One Distribution & other local distribution utilities Residential Commercial Industrial 2
Three Levels of Electricity Planning Bulk System Planning Regional Planning Distribution Network Planning Long-term Energy Plan, Ontario Planning Outlook Integrated Regional Resource Plan, Regional Infrastructure Plan Distribution System Plan
Regions in GTA and Central Ontario 5 regions: 1. GTA West 2. GTA North 3. Toronto 4. GTA East 5. South Georgian Bay/Muskoka 4
Planning Considerations Infrastructure is aging In some regions, forecasted growth is exceeding supply capability In some regions, reliability of supply is a concern Expansion into greenfield areas away from electricity infrastructure is expected to occur Non-wire solutions may be an option to address electricity needs Municipal and community plans should be factored in There may be opportunities to maximize the use of existing assets 5
Panel Discussion: Planning for Today and Tomorrow Moderator: Chuck Farmer, Director, Stakeholder and Panelists: Public Affairs, IESO David Short, Power System Assessments, IESO Ahmed Maria, Senior Manager, Transmission Integration, IESO Angelo Boschetti, Supervisor, Engineering Department: Generation and Capacity Planning, Toronto Hydro Robert Reinmuller, Director, System Planning, Hydro One
Central Ontario Regional Forum December 11, 2017
Our Role Hydro One s Role in the Electric System TRANSMISSION DISTRIBUTION Electricity Generation Sources Transformer Transmission (Increased to System Higher voltage) Transformer (Decreased to Medium voltage) Distribution System 98% of capacity 75% of geography and 25% of end use customers Percentage of Ontario Market Transformer (Decreased to Lower voltage) Industrial, Residential, Commercial Customers 2
One of North America s Largest Electric Utilities Service Territory Pure electric transmission and distribution utility 30,000 circuit KMs of transmission lines across 98% of Ontario, home to 38% of Canadian population Largest local distribution company (LDC) in Ontario with 1.3 million end customers 99% of revenue from regulated operations Service area is larger than France or the State of Texas Combined transmission and distribution rate base of $17.83 billion Common shares traded on the TSX under ticker symbol H 3
Planning Considerations IESO LDC IESO TRANSMITTER 4
Major Transmission Projects Completed in Central Ontario Legend 500 kv 230 kv 115 kv Hearn SS, Leaside TS & Manby TS Switchyard (2013 & 2014) Manby TS: Reconfiguration (2014) Lakeshore Cable Refurbishment (2015) Midtown Tx Reinforcement (2016) YEC generation (2012) GATR (2016) Thornton Tx (2015) Kingston: Solar CGS (2015) Gardiner TS: T3/T4 (2009) Sidney TS: breakers (2017) Jarvis & Caledonia TS: Reactors (2012-13) Nebo TS: Breakers (2013) Burlington TS: Breakers (2016) TX replacement: Brantford TS (2013), Kenilworth TS (2014), Dundas TS (2015), Brant TS (2016) Clarington 5
Major Future Transmission Projects in Central Ontario Legend 500 kv 230 kv 115 kv Metrolinx Stations: Burlington Barrie Cityview Mimico Oshawa Scarborough Vaughan MTS #4 (2017) Holland breakers (2017) Markham MTS #5 (2023 Clarington TS (2018) Enfield TS (2019) Seaton MTS (2019) Amherst Island CGS (2018) Loyal Solar CGS (2018) Connect Napanee GS (2018) M20D/M21D Switches (2017) Brant 115 kv SS (2019) Kenilworth TS: EOL Tx (2021) Beach TS: HV Breakers/ Tx (2019) Middleport TS: HV breakers (2022) Nanticoke TS: HV breakers (2021) Gage TS: Reconfigure/EOL Tx (2019) Elgin TS: Reconfigure/EOL Tx (2019) Clarington Copeland MTS (2018) Runnymede TS New DESN K x W Line Upgrade (2018) Horner TS (2020) R x K Transmission (2022) Beck 1-2022 Beck 2-2021 Clarington 6
Goals Safe, Reliable, Efficient Facilitate the delivery of the Long Term Energy Plan Comply with stringent Reliability Standards Meet Customer Needs Meet Regional Planning Obligations Expand on System Monitoring and Analysis Continued Collaboration with Indigenous Communities Engagement and Transparency for all Customers Continue Innovation 7
Operational Excellence CANADIAN-BASED CHAMPION & LEADING NORTH AMERICAN UTILITY OPERATIONS 2020 VISION: Establish a culture of operational excellence with industry leading safety to deliver cost effective, reliable service for our customers. Create a repeatable platform for growth as the leading owner and operator of grid infrastructure in North America. Be an industry leader in SAFETY & ENVIRONMENT for our employees, contractors, and the public Deliver improved RELIABILITY to our customers, incorporating their input and priorities Provide COST EFFECTIVE service to our customers by improving our productivity Always be there for our CUSTOMERS with a seamless experience in all operations interactions Foundational OPERATING MODEL enabled by people, process, and technology 8