Mayor’s Megawatt Challenge

Mayors' Megawatt Challenge banner

Since 2003, the Mayors’ Megawatt Challenge program has been bringing together leading municipalities to achieve exceptional levels of energy and environmental performance in municipal facilities.  The program is a membership based program that uses a unique and effective data driven approach to energy conservation.  We are very proud of our members. They have achieved significant year over year energy savings of more than 525 thousand giga-joules since the start of the program. Congratulations!

But that’s not all. Based on the analysis of energy data submitted to the Ministry of Energy in compliance with the Green Energy Act regulations, the town and city halls of our member municipalities use 24% less energy per square foot than non-member town and city halls! As always they lead by example!

The Mayors’ Megawatt Challenge holds webinars, workshops, and an annual forum to help bring municipalities , government, and industry experts together to share best practices and knowledge in operations and maintenance, share successes in energy retrofit projects, and recognize high performing municipal buildings.

Not a member? Sign up now by filling in and submitting the form below

Mayors’ Megawatt Challenge Registration Form

Please contact Jason Choy at for any membership inquiries

Program Savings Since 2003

  • Energy: 525,013 GJ
  • GHG emissions : 21,992 tonnes,
  • Water: 565,978 m3
  • Cost: $9,577,178

Member Municipalities:

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

There are 117 buildings enrolled with a total area of 855,731 m2.

Program Documents

Upcoming Events

Feb 6 @ 12:30 pm – 2:00 pm Webinar
Second generation Energy Conservation Plans are due July 1, 2019. How are municipalities setting reduction targets, applying lessons learned since 2014 and broadening the scope of their environmental planning? Join us on February 6 to...

Mayors’ Megawatt Challenge Annual Forum 2018

The Forum is our annual signature event, bringing together municipalities, government, utility companies, associations and industry experts to drive forward the energy and environmental performance of municipal facilities. This year’s forum will be taking place on November 7th, 2018.

More information about this year’s forum will be coming soon.

We are always looking for solution providers and vendors to exhibit at the event. Space is limited so please register.

MMC Forum 2018 Exhibitor Registration Form

2018 MMC Forum Flyer



Mayors’ Megawatt Challenge Awards

Recognition is an integral part of the Mayor’s Megawatt Challenge as our member municipalities have accomplished significant savings in energy and greenhouse gas emissions since the  program’s inception.

This year we are also awarding The Living City Energy Efficiency Leadership Award. This award recognizes leadership in achieving their energy targets and thus reducing their conservation potential to 5% or less. The Gold Award will go to municipal buildings that meet their target. The Silver Award goes to municipal buildings that get to within 5% of their target.

The Gold award presented to the City of Mississauga for their Civic Centre and the Town of Richmond Hill for their Town Hall at the Sustainability Forum on November 22, 2017. Congratulations!

City of Mississauga


Jason Choy, BASc., CEM, MBA
Program Manager, Community Transformation
416.661.6600 ext. 5611


Technical Direction

Enerlife Consulting

Program Management

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