Since 2003


The Mayors’ Megawatt Challenge (MMC) is a network of municipalities that features events, benchmarking and assessment reports, on-going energy and water reporting, analytical tools, and awards and recognition.

By joining the Mayors’ Megawatt Challenge (MMC), municipalities can:

  • Learn strategies to save energy and reduce utility costs
  • Compare energy and water use with other municipalities
  • Establish energy use targets and estimate cost savings potential
  • Access expert advice on and support with technical and regulatory matters
  • Network at forums and participate in webinars
  • Share knowledge and best practices
  • Be recognized for achievements through awards
  • Demonstrate leadership in energy efficiency and greenhouse gas reduction
  • Inspire organizations and individuals to take action towards healthier, more sustainable communities

Town Hall Challenge

The Town Hall Challenge was conducted from 2012-2015, with municipalities across Canada invited to work towards 20 ekWh/sq ft of total energy intensity by the year 2015. The initiative led to substantial energy efficiency improvements in participating buildings, several of which met the target. Winners (Mississauga Civic Centre and Moncton City Hall) were announced in 2016. We continue to work with Town/ City Halls using interval meter data to help point to where the biggest energy conservation opportunities are to be found.

Community Centre Challenge

The Community Centre Challenge was formally launched in 2016. Through three webinars, and the Annual Forum, we formalized the diagnostic methodology in a White Paper, identified and reported on top-performing facilities, shared with members the actual performance, savings potential and energy conservation actions for their facilities, and reported on top-energy-savings facilities for 2015-16.

Bringing municipalities together to improve energy efficiency and environmental performance in their own buildings and contribute more broadly to mitigating climate change and making their communities more sustainable.

member municipalities

municipal facilities


Member Municipalities

Participating municipal facilities include administrative buildings, community centres, fire halls, ice rinks, pools, police stations, libraries, cultural facilities, waste and wastewater facilities, and transit facilities:

  • City of Barrie
  • City of Brampton
  • Township of King
  • City of Markham
  • City of Mississauga
  • City of Oshawa
  • Region of Peel
  • Town of Richmond Hill
  • City of Toronto

2019 Awards


MMC members are eligible for leadership awards.

  • 10 Percent Club Award:
    For member municipalities who achieve more than 10% total energy savings from their baseline year in individual buildings
  • Town Hall Challenge:
    Recognizing the most energy efficient city and town halls from across Canada.


Mayors’ Megawatt Challenge Annual Forum 2019

Monday, November 4, 2019 (8:15 am – 4:00 pm)

Location: Mississauga Civic Centre, C Banquets 12th Floor, 300 City Centre Drive, Mississauga, Ontario L5B 3C1 MAP

Members and Sponsors: Free. Register via Eventbrite here.
Non-Members, Government and Utility Companies: $125.00 + taxes. Register via Eventbrite here.
Industry: Guest Admission: $225.00 + taxes. Register via Eventbrite here. Exhibitor information and registration

View the 2019 Forum agenda

On November 4, 2019, the Mayors’ Megawatt Challenge program is welcoming municipal managers, government and utility company representatives, academic leaders and industry experts to the Mississauga Civic Centre for our 2019 Annual Forum. The Forum features the latest energy performance data and brings together new thinking and best practices essential to bridge the gap between well-intentioned policies and resolutions and real, verified, deep greenhouse gas emissions reductions.


View speaker bios

For more information, please contact Astra Vaz at nfgen.inm@rareyvsr.pbz, 416-915-1530 ext. 202.

Event details are subject to change.

2019 Webinars

Feb 6th, 12:30 – 2:00 pm EST
September 11th, 12:30 – 2:00 pm EST
October 9th, 12:30 – 2:00 pm EST


Please enter your information to stay up-to-date on Mayors’ Megawatt Challenge program news.

Program sponsors:

 Save On Energy - Logo

A program of:

CCN - Logo