Hydro One Networks Inc. 483 Bay Street Tel: (416) 345-5420 13th Floor, North Tower Fax: (416) 345-4141 Toronto, ON M5G 2P5 Ajay.Garg@HydroOne.com www.HydroOne.com

April 5th, 2019 Riaz Shaikh Manager, Distribution System Planning Alectra Utilities Corporation 2185 Derry Rd W, Mississauga, ON L5N 7A6, Dear Mr. Shaikh, Subject: Regional Planning Status As per your request, this Planning Status letter is provided to meet one of the requirements of your upcoming Rate Application to the Ontario Energy Board (OEB). As you are aware, the province of Ontario is divided into 21 Regions for the purpose of Regional Planning (RP), and these regions have been split into three (3) groups for the purposes of prioritizing and managing the RP process. A map of Ontario showing the 21 Regions and the list of LDCs in each of the Region are attached as Appendix A and B respectively. Alectra Utilities Corporation’s service territory extends to parts of Burlington to Nanticoke, GTA North, GTA West, Kitchener-Waterloo-Cambridge-Guelph (KWCG) and Toronto regions in Group 1, South Georgian Bay / Muskoka region in Group 2 and Niagara region in Group 3, where Hydro One Networks Inc. (Hydro One) is the lead transmitter. This letter confirms that the first cycle of RP for all the 21 regions was completed in 2017. Since then, the second cycle of regional planning is in progress for Burlington to Nanticoke, Greater Ottawa, GTA North, GTA West, KWCG, Toronto and Windsor Essex regions. An overview of the RP process is available on Hydro One’s RP homepage1, which also includes these region’s current status and corresponding reports. The current RP status for the regions impacting Alectra Utilities is summarized below: Burlington to Nanticoke Region The first cycle of RP for this Region was completed in February 2017 and the second cycle Needs Assessment (NA) report was completed and published in May 2017.

1 https://www.hydroone.com/about/corporate-information/regional-plans

The first cycle Regional Infrastructure Plan (RIP) identified additional needs related to end-of-life transmission assets in the Hamilton area. The plans to address these end-of-life needs are being developed by Hydro One in coordination with Alectra and other impacted LDCs in the region. The project to install 115kV switching facilities at Brant TS was identified as one of the transmission infrastructure investments required for the region. This project along with investments at Beach TS for Transformer (T3/T4) replacement; and at Bronte TS for Transformer (T5/T6) and DESN refurbishment, are continuing to be developed and are expected to be in-service in 2019. In response to the remaining RIP recommendations, the following investments are planned to commence over the 2020 to 2024 period:

• Beach TS: Auto-Transformer (T7/T8) Replacement and DESN Switchgear • Birmingham TS: MV Metalclad Switchgear Refurbishment • Dundas TS: MV Switchyard Refurbishment • Dundas TS #2: Two New Feeder Positions • Elgin TS: Transformer and DESN Reconfiguration • Gage TS: Transformer and DESN Reconfiguration • Kenilworth TS: Transformer and DESN Reconfiguration • Lake TS: LV Switchyard Refurbishment • Newton TS: Station Refurbishment • 115kV B3/B4 Transmission Line: Refurbish line sections from Horning Mountain Junction to

Glanford Junction and • 115kV B7/B8 Transmission Line: Refurbish line sections from Burlington TS to Nelson Junction

The second cycle NA reaffirmed the needs identified in the first cycle RIP and has identified the following additional needs resulting from aging infrastructure over the 2020 to 2024 period:

• Burlington TS: LV Switchyard Refurbishment and • Norfolk TS: LV Switchyard Refurbishment

Hydro One is developing scope of work and will continue to coordinate with Alectra Utilities and impacted customers for the effective execution of these projects. The above projects are expected to improve the overall reliability performance in the region. Hydro One is expecting that there will be little or no capital contribution from Alectra Utilities Corporation for the above projects in the Burlington to Nanticoke Region consistent with the Transmission System Code (TSC). GTA North Region The GTA North region was divided into two sub-regions: a) Western Sub-Region and b) York Sub-Region. This letter confirms that the first cycle of RP for GTA North Region was completed in February 2016 and the second cycle NA report was completed and published in March 2018. The first cycle RIP identified three transmission infrastructure investments over the 2017 to 2018 period.

These investments have been completed and placed in-service, including the connection of a new load station Vaughan MTS #4 owned and operated by Alectra Utilities; the installation of breakers and switches at Holland TS; and the installation of two inline switches on the 230kV circuits V71P/V75P at Grainger Junction. The second cycle NA has identified the need for the following investments over the 2020 to 2024 period:

• Connection of a new load station Markham #5 MTS and • Woodbridge TS: Transformer (T5) Replacement

Based on the latest load forecast and Conservation and Demand Side Management (CDM) impact, the targeted completion date for the MTS#5 has been revised to 2026. The above projects are expected to strengthen the electrical system and improve the overall reliability performance in the region. The connection of Markham MTS #5 is projected to be beyond 2024 and may require capital contribution from Alectra Utilities Corporation consistent with the TSC. GTA West Region The first cycle of RP for GTA West Region was completed in January 2016 and the second cycle NA phase is expected to be completed by Q2 2019. In response to the first cycle RIP recommendations, the following investments are planned over the 2020 to 2024 period:

• Connection of a new load station Halton TS #2 • Station Expansion and Connection of 230kV circuits at Milton Switching Station (SS) and • Reconductoring 230kV H29/H30 Transmission Line

Hydro One is expecting little or no capital contribution from Alectra Utilities Corporation for the above projects in the GTA West Region consistent with the TSC. Kitchener – Waterloo – Cambridge - Guelph Region The KWCG region includes the municipalities of Kitchener, Waterloo, Cambridge and Guelph, as well as portions of Perth and Wellington Counties and the Townships of Wellesley, Woolwich, Wilmot and North Dumfries. This letter confirms that the first cycle of RP for KWCG Region was completed in December 2015 and the second cycle NA report was completed and published in December 2018. The following transmission projects were completed by Hydro One to address needs that were recommended in the first cycle RIP:

• The Guelph Area Transmission Refurbishment Project (GATR), placed into service since Q4 2016. • The switching facilities work at Galt Junction to improve supply reliability for the

Cambridge-Kitchener 230 kV Sub-system, placed into service in Oct 2017. The second cycle NA has identified following new projects to address aging Infrastructure needs in the

region: • Near Term (1-5 years)

o Campbell TS – T1 (2018) o Detweiler TS -Auto T2 &T4 (2021-2022) o 115 kV B5C/ B6C Circuits (2019-2020) o 115 kV D7F/ D9F Circuits (2019-2020) o 230 kV D6V/ D7V Circuits (2019- 2020)

• Mid-term ( 5-10 years) o Hanlon TS - T1 & T2 (2023-2024) o Cedar TS - T7 & T8 (2024-2025) o Preston TS - T3 & T4 (2025-2026)

It is expected that there will be little or no capital contributions required from Alectra Utilities for the above transmission projects undertaken by Hydro One consistent with the TSC. Other two distribution projects addressing the end-of-life needs emerging over next 5-10 years as outlined in the 2nd cycle NA report are being planned and managed by the LDCs:

• Scheifele MTS - T1 & T2 (2024-2026) for Waterloo North Hydro • Kitchener MTS #5 - T9 & T10 (2023-2024) for Kitchener Wilmot Hydro Inc.

The above projects are expected to improve the overall reliability performance in the region. The future system capacity need for Waterloo North Hydro MTS #4 and the new future system capacity need for Energy+ MTS #2 will be studied during the next phases of second cycle regional planning. Toronto Region This letter confirms that the first cycle of RP for Toronto (formerly referred to as Metro Toronto) region has been completed in January 2016 and the second cycle of RP is in progress. The second cycle NA was completed in October 2017. The first cycle RIP identified several near-term transmission infrastructure investments for the region, including:

• Addition of a second transformer station at Horner TS • Manby TS, Autotransformer overload protection scheme • Runnymede TS, Expansion of transformer station and reconductoring the 115kV circuits and • Southwest GTA Transmission Reinforcement

The investments at Runnymede TS and Manby TS were completed and placed in-service in 2018. The other two investments, along with the connection for Copeland MTS Phase 2, are expected to be in-service over the 2020 to 2024 period. The second cycle NA reaffirmed the needs identified in the first cycle RIP and also identified the

following additional investments to address aging infrastructure issues over the 2020 to 2024 period: • Bermondsey TS Transformer (T3/T4) Replacement • Bridgman TS: Transformer (T11-T13) Replacement • Charles TS: Transformer (T3/T4) Replacement • Duplex TS: Transformer (T1/T2) Replacement • Fairbank TS: Transformer (T1-T4) Replacement • Fairchild TS: Transformer (T1/T2) Replacement • John TS: Station Reinvestment • Leslie TS: Transformer (T1) Replacement • Main TS: Transformer (T3/T4) Replacement • Manby TS: Transformer (T7/T9/T12/T13) and 230kV Component Replacement • Runnymede TS: Transformer (T3/T4) Replacement • Sheppard TS: Transformer (T3/T4) Replacement • Strachan TS: Transformer (T12) Replacement • 115kV C5E/C7E Underground Cables: Refurbish cable sections from Esplanade TS to Terauley TS • 115kV H1L/H3L/H6LC/H8LC Transmission Lines: Refurbish line sections from Leaside Junction to

Bloor St. Junction and • 115kV L9C/L12C Transmission Lines: Refurbish line sections from Leaside TS to Balfour Junction

These investments will require little or no contribution from Alectra Utilities Corporation.

South Georgian Bay / Muskoka Region This letter confirms that the first cycle of Regional Planning for South Georgian Bay/Muskoka Region has been completed in August 2017 and the second cycle of Regional planning is currently expected to commence in Q4 of 2019. In response to the RIP recommendations, the following investments are being planned over the 2020 to 2024 period:

• Barrie Area Transmission Upgrade • Minden TS: Transformer Replacement, LV Switchyard Rebuild • Orangeville TS: Transformer (T1/T2) Replacement • Parry Sound TS: Transformer Replacement

These projects are expected to maintain and/or improve the reliability performance and provide additional capacity in the region. Barrie Area Transmission Upgrade project is still under development and contribution from LDCs, if any, will be consistent with the requirements of Transmission System Code. It is currently expected that these investments will require little or no contribution from Alectra Utilities Corporation.

Niagara Region The first cycle of Regional Planning for Niagara Region was completed in March 2017 and the second cycle of Regional planning is expected to commence in Q3 of 2019. The Regional Infrastructure Plan identified that the needs for this region were strictly local in nature. Local plans have been implemented by Hydro One to address thermal overloading of the 115kV circuit (Q4N) by upgrading the conductor on a section of Q4N from Beck 1 SS to Portal Junction. At this time the following infrastructure investments are contemplated over the 2020 to 2024 planning period in the Niagara Region

• Carlton TS Switchgear Replacement (2021) • Glendale TS Transformer and component Replacement (2023) • Thorold Transformer and Component Replacement (2022) • Stanley TS Transformer and Component Replacement (2021) • Crowland TS Transformer and Component Replacement (2023)

Links to all the first cycle Regional Infrastructure Plans (RIPs) and the second cycle Needs Assessment (NA) reports, where applicable in order of regional description provided above, can be found in Appendices C and D respectively. Further planning details will be communicated and discussed with Study Team Members as they become available. It is expected that these investments will require little or no contribution from Alectra Utilities Corporation. Alectra Utilities Corporation is an active participating member on the regional Study Teams and Hydro One is looking forward to continue working with Alectra Utilities in executing the regional planning process. Please feel free to contact me if you have any questions. Sincerely,

Ajay Garg, Manager - Regional Planning Coordination Hydro One Networks Inc.

Appendix A: Map of Ontario’s Planning Regions

Northern Ontario

Southern Ontario

Greater Toronto Area (GTA)

Group 1 Group 2 Group 3 Burlington to Nanticoke East Lake Superior Chatham/Lambton/Sarnia Greater Ottawa London area Greater Bruce/Huron GTA East Peterborough to Kingston Niagara GTA North South Georgian

Bay/Muskoka North of Moosonee

GTA West Sudbury/Algoma North/East of Sudbury Kitchener- Waterloo- Cambridge-Guelph (“KWCG”)

Renfrew

Toronto St. Lawrence

Northwest Ontario

Windsor-Essex

Appendix B: List of LDCs for Each Region

[Hydro One as Upstream Transmitter]

Region LDCs

1. Burlington to Nanticoke • Energy+ Inc. • Brantford Power Inc. • Burlington Hydro Inc. • Haldimand County Hydro Inc.** • Alectra Utilities Corporation • Hydro One Networks Inc. • Norfolk Power Distribution Inc.** • Oakville Hydro Electricity Distribution Inc.

2. Greater Ottawa • Hydro 2000 Inc. • Hydro Hawkesbury Inc. • Hydro One Networks Inc. • Hydro Ottawa Limited • Ottawa River Power Corporation • Renfrew Hydro Inc.

3. GTA North • Alectra Utilities Corporation • Hydro One Networks Inc. • Newmarket-Tay Power Distribution Ltd. • Toronto Hydro Electric System Limited • Veridian Connections Inc.

4. GTA West • Burlington Hydro Inc. • Alectra Utilities Corporation • Halton Hills Hydro Inc. • Hydro One Networks Inc. • Milton Hydro Distribution Inc. • Oakville Hydro Electricity Distribution Inc.

5. Kitchener- Waterloo-Cambridge-Guelph (“KWCG”)

• Energy+ Inc. • Centre Wellington Hydro Ltd. • Alectra Utilities Corporation • Halton Hills Hydro Inc. • Hydro One Networks Inc. • Kitchener-Wilmot Hydro Inc. • Milton Hydro Distribution Inc. • Waterloo North Hydro Inc. • Wellington North Power Inc.

6. Toronto • Alectra Utilities Corporation • Hydro One Networks Inc. • Toronto Hydro Electric System Limited • Veridian Connections Inc.

7. Northwest Ontario • Atikokan Hydro Inc. • Chapleau Public Utilities Corporation • Fort Frances Power Corporation • Hydro One Networks Inc. • Kenora Hydro Electric Corporation Ltd. • Sioux Lookout Hydro Inc. • Thunder Bay Hydro Electricity

Distribution Inc.

8. Windsor-Essex • E.L.K. Energy Inc. • Entegrus Power Lines lnc. [Chatham- Kent] • EnWin Utilities Ltd. • Essex Powerlines Corporation • Hydro One Networks Inc.

9. East Lake Superior N/A This region is not within Hydro One’s territory

10. GTA East • Hydro One Networks Inc. • Oshawa PUC Networks Inc. • Veridian Connections Inc. • Whitby Hydro Electric Corporation

11. London area • Entegrus Power Lines lnc. [Middlesex] • Erie Thames Power Lines Corporation • Hydro One Networks Inc. • London Hydro Inc. • Norfolk Power Distribution Inc.** • St. Thomas Energy Inc. • Tillsonburg Hydro Inc. • Woodstock Hydro Services Inc.**

12. Peterborough to Kingston • Eastern Ontario Power Inc. • Hydro One Networks Inc. • Kingston Hydro Corporation • Lakefront Utilities Inc. • Peterborough Distribution Inc. • Veridian Connections Inc.

13. South Georgian Bay/Muskoka • EPCOR • Hydro One Networks Inc. • InnPower Corporation • Lakeland Power Distribution Ltd. • Midland Power Utility Corporation • Orangeville Hydro Limited • Orillia Power Distribution Corporation • Alectra Utilities Corporation • Veridian Connections Inc. • Veridian Connections Inc. • Wasaga Distribution Inc.

14. Sudbury/Algoma • Espanola Regional Hydro Distribution Corp. • Greater Sudbury Hydro Inc. • Hydro One Networks Inc.

15. Chatham/Lambton/Sarnia • Bluewater Power Distribution Corporation • Entegrus Power Lines lnc. [Chatham- Kent] • Hydro One Networks Inc.

16. Greater Bruce/Huron • Entegrus Power Lines lnc. [Middlesex] • Erie Thames Power Lines Corporation • Festival Hydro Inc. • Hydro One Networks Inc. • Wellington North Power Inc. • West Coast Huron Energy Inc. • Westario Power Inc.

17. Niagara • Canadian Niagara Power Inc. [Port Colborne] • Grimsby Power Inc. • Haldimand County Hydro Inc.** • Alectra Utilities Corporation • Hydro One Networks Inc. • Niagara Peninsula Energy Inc. • Niagara-On-The-Lake Hydro Inc. • Welland Hydro-Electric System Corp. • Niagara West Transformation Corporation*

* Changes to the May 17, 2013 OEB Planning Process Working Group Report

18. North of Moosonee N/A This region is not within Hydro One’s territory

19. North/East of Sudbury • Greater Sudbury Hydro Inc. • Hearst Power Distribution Company Limited • Hydro One Networks Inc. • North Bay Hydro Distribution Ltd. • Northern Ontario Wires Inc.

20. Renfrew • Hydro One Networks Inc. • Ottawa River Power Corporation • Renfrew Hydro Inc.

21. St. Lawrence • Cooperative Hydro Embrun Inc. • Hydro One Networks Inc. • Rideau St. Lawrence Distribution Inc.

**This Local Distribution Company (LDC) has been acquired by Hydro One Networks Inc.

Appendix C: Links to Regional Infrastructure Plans Burlington to Nanticoke

GTA North

GTA West

Kitchener-Waterloo-Cambridge-Guelph (KWCG)

Toronto

South Georgian Bay / Muskoka

Niagara

Appendix D: Links to Needs Assessment Reports Burlington to Nanticoke

GTA North

Kitchener-Waterloo-Cambridge-Guelph (KWCG)

Toronto