Community Role - Key Facts and Figures

  • Over the next 20 years, electricity demand is projected to grow steadily due to industrial growth from indoor agriculture and mining, electrification of transit, as well as from the residential sector as more Ontarians work from home.  
  • Coal-fired generation has been phased out and several nuclear generating stations are either being retired or removed from service for a period of time for refurbishments. At the same time, wind and solar generation are a larger part of the province’s electricity supply mix, and new types of demand response and storage resources are emerging to help meet the growing demand for electricity.
  • Factors that influence electricity needs at the local level can include:

  • Capacity of existing electricity infrastructure

  • Local energy projects

  • Electric vehicle adoption

  • Changes in housing, population, commercial and industrial development

  • Future growth plans

  • Energy-efficiency opportunities

  • Long-term land use plans

  • Electrification of transit systems, municipal fleets and/or buildings

$100 Million in Electricity Savings

Between 2011 and 2017, Ontario’s municipalities achieved electricity savings of over $100 million through the Save on Energy Retrofit Program, which helps with equipment upgrades and to improve operations.

Drinking Water and Wastewater Treatment

Water treatment plants account for over one-third of total municipal energy consumption. Since 2010, Ontario municipalities invested at least $19 million in upgrades to drinking water and wastewater treatment plants through Save on Energy programs. This helped save about 14 gigawatt-hours (GWh) of electricity.

Fruit and Vegetable Greenhouses

In 2018, Ontario had 111.9 million sq. ft. of greenhouses for vegetables and fruit, the largest and fastest growing category within the greenhouse sector in terms of both energy use and total area.


The amount electricity consumption in the vegetable sector is forecast to jump by 2024, going from 473,000 megawatt-hours in 2018 to 1,808,000 megawatt-hours.

Graph showing Potential Electricity Savings for Ontario Municipalities

Source: Ontario Municipal Energy Profile 2017


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