| Region | Near Term present - 5 years | Medium - Long Term 5 - 20 years |
| York Region
Municipalities: Vaughan, Richmond Hill, Markham, Aurora, Newmarket, King, East Gwillimbury, Whitchurch-Stouffville, Georgina. The region is one of the fastest-growing in Ontario.
Technical working group: IESO, Newmarket-Tay Power, PowerStream, Hydro One Distribution, Hydro One Transmission. | 1. Implement conservation and distributed generation. 2. Develop a new station in Vaughan - PowerStream is developing a new station, “Vaughan Municipal Transformer Station (“MTS”) #4.” 3. Add switching facilities at the Holland station site 4. Install in-line circuit switchers on the Parkway 230 kV transmission Line
| 1. Undertake community engagement, including with local First Nation communities: public education/awareness of electricity issues, obtaining input on community preferences for various approaches to meeting needs. 2. Develop community-based solutions, which could include combinations of conservation, district heating, local generation, storage, off-grid solutions, and other emerging technologies. 3. Continue ongoing work to establish joint-use transmission/transportation corridor through Peel, Halton Hills, and Northern Vaughan. 4. Monitor demand growth, conservation achievement and distributed generation uptake 5. Initiate the next regional planning cycle early, if needed |
| Region | Near to Medium Term (Generally 2014 – 2023) | Long Term (Generally 2024 - 2033) |
| Brant Municipalities: County of Brant, City of Brantford and surrounding areas.
Technical working group: IESO, Brant County Power Inc., Brantford Power Inc., Hydro One Distribution, Hydro One Transmission | 1. Targeted conservation. account for approximately 40% of the forecast demand growth during the first 10 years 2. Contracted distributed generation. Expected to educe the gross forecast for the Area by approximately 5 % for the study period Both established in 2013 LTEP 3. 30 MVAR of capacitor banks 4. 2 transmission projects. one is underway a 2nd is under discussion between Brantford Power Inc., Brant County Power Inc. and Hydro One. Cost estimate of both $13-16M 5. Consider a demand response pilot program for Brant | The plan calls for information gathering, development of alternatives, monitoring of growth, and community engagement so as to keep future options open. |
| Kitchener-Waterloo-Cambridge-Guelph
Technical Working Group: Kitchener-Wilmot Hydro, Waterloo North Hydro, Guelph Hydro Electric Systems Inc., Hydro One Distribution, Cambridge and North Dumfries Hydro, Hydro One Transmission | 1. Conservation (40%). Maximize peak demand reduction 2. DG 3. Implement the Guelph Area Transmission Refurbishment (GATR) • installation of two 115 kV/230 kV auto-transformers, switching facilities, and the upgrade of an existing transmission line • to be in service by spring 2016. 4. Install two circuit switchers at Galt Junction and explore opportunities to further improve restoration capability in the Cambridge area | There are no major regional supply and reliability needs identified beyond 2023, so early development work for major infrastructure projects is not required at this time. In the mean time, 1. Undertake community engagement 2. Monitor demand growth, conservation and demand management (CDM) achievement and distributed generation 3 . Explore opportunities to coordinate use and development of transformation station facilities in the KWCG Region |
| Northwest Greater Toronto Area
Municipalities: Brampton, Milton, Halton and the southern portion of Caledon.
Technical working group: IESO, Hydro One Brampton, Milton Hydro, Halton Hills Hydro, Hydro One Distribution and Hydro One Transmission | 1. Implement conservation and distributed generation, including peak-demand reductions amounting to approximately 130 megawatts, or 33% of the forecast demand growth during the first 10 years of the study. 2. Address restoration and T38/39B needs through a bulk system study underway. 3. Develop two new step-down stations to relieve overloads on the Halton transformer station that supplies 27.6 kilovolt power throughout Milton and southern Halton Hills. 4. Upgrade the H29/30 circuits that supply power to Pleasant TS to accommodate over 500 MW of electrical demand at Pleasant TS, enough to accommodate the full rating of the station’s step-down facilities. | In the long term, continued load growth is expected to be significant, increasing peak summer demand in Northwest GTA from 1,220 MW to 1,580 MW during the study period. 1. Continue ongoing work to establish a new transmission corridor through Peel, Halton Hills and Northern Vaughan. 2. Monitor demand growth, CDM achievement and distributed generation uptake. |
| Region | Near to Medium Term (Generally 2014 – 2023) | Long Term (Generally 2024 - 2033) |
| Ottawa
Municipalities: City of Ottawa, including the Greenbelt, Kanata, Nepean and Orléans.
Technical working group: IESO, Hydro Ottawa Limited, Hydro One Distribution and Hydro One Transmission. | 1. Implement conservation and distributed generation. Conservation resources are expected to offset nearly 50% of the growth in the area between 2015 and 2032. 2. Transmission projects • Replace two lower rated 230/115 kV transformers at Hawthorne TS, which are approaching their end-of-life, with higher rated transformers. • Install a circuit breaker on circuit M29C at Almonte TS to reduce interruptions to loads connected to M29C, including Terry Fox MTS • Increase the rating of the section of circuit S7M supplying Fallowfield DS, Manotick DS and Richmond DS • Rebuild the section of circuit A5RK between Overbrook TS and the junction with circuit A6R near Riverdale TS into a double-circuit line in order to provide additional supply capacity for circuit A4K, reinforcing transmission supply to the downtown area. 3. Further recommended actions • Engage the community on the options for supplying forecast medium-term demand growth in the South Nepean area. Consider initiating early planning work for a new transformer station (“TS”) in the South Nepean area, with a targeted in-service date in 2020, in parallel with the community engagement. • Increase distribution system transfer capability between downtown stations, and increasing station capacity at King Edward TS. • Monitor demand growth on the Merivale 115 kV system | 1. Community engagement, to receive input on preferences for long-term electricity supply alternatives, including conservation and DG. 2. Monitor demand growth, conservation achievement and distributed generation uptake 3. Initiate the next regional planning cycle early, if required |
| Central Toronto Technical Working Group: IESO, Toronto Hydro-Electric System, Hydro One Networks Inc. | 1. Reconfigure the tap points of Horner TS on the Richview to Manby 230 kV lines to improve the distribution of loading on the 230 kV system by better balancing the loadings using existing infrastructure (completed by Hydro One in 2014). 2. Implement Special Protection Systems to address supply security and ensure that the reliability standards are met for breaker failure contingencies at the major transformer stations serving Central Toronto (Manby TS and Leaside TS). 3. Implement area-specific conservation options in order to defer 230 kV transmission line capacity needs. 4. Conduct further work to identify opportunities for distributed generation resources within the Central Toronto Area. 5. Proceed with work for increasing transformer station capacity in west Toronto by 2018, and in the downtown core by 2021. 6. Proceed with detailed investigation of the infrastructure options to provide capacity relief for the Richview – Manby 230 kV transmission corridor. 7. Investigate and implement cost-effective options for enhancing supply security and restoration capability following multiple element contingencies in Central Toronto. 8. Conduct further work to assess options for increasing system resiliency for extreme events. | Range: 10-25+ years
1. Establish a Local Advisory Committee to inform the long-term vision for electricity supply in the area. 2. Continue to engage with stakeholders and the community to develop community-based solutions. 3. Monitor demand growth, conservation achievement and DG uptake. 4. Initiate the next Regional Planning Cycle early, if needed. |
| Windsor-Essex region
Municipalities: City of Windsor, Town of Amherstburg, Town of Essex, Town of Kingsville, Town of Lakeshore, Town of LaSalle, Municipality of Leamington, Town of Tecumseh, the western portion of the Municipality of Chatham-Kent and the Township of Pelee Island.
Technical working group: IESO, EnWin Utilities Ltd., Essex Powerlines Corporation, E.L.K. Energy Inc., Entegrus Inc., Hydro One Distribution, Hydro One Transmission. | 1. Implement conservation and distributed generation. 2. Develop new 230 kV transformer station in Leamington, connected to the existing 230 kV circuits via a new 13 km double-circuit 230 kV connection line. 3. Downsize the existing Kingsville transformer station through the retirement of aging assets. Some of the load supplied by Kingsville TS will be transferred to the new Leamington TS.
| No long-term needs have been identified. Demand growth, conservation achievements and generation development will be monitored until the Region’s needs are reassessed in the next regional planning cycle. |