Existing Building Commissioning

Get incentives to tune up your chillers

For energy savings up to 30%

Contact our Energy Experts

We’ll take care of everything from start to finish ― and the paperwork between.

General inquiries:


Contact an Energy Expert directly cdm@torontohydro.com

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Optimize the performance of your chilled water system

Think of Existing Building Commissioning (EBC) like you would a thorough tune-up for your car. The goal is to optimize all components for maximum energy efficiency. For your chiller, this means measuring and assessing all key variables to uncover opportunities for efficiency gains.

Just like a tune-up, the assessment may also identify equipment that could benefit from a proactive upgrade. High-efficiency upgrades may qualify for additional Retrofit Program incentives of up to 50% of project costs.

Typical energy savings are between 10% and 30%

Although savings vary by system, most buildings can expect to see up to 30% reduction in energy use. Not only will you see immediate energy savings, you’ll also benefit from lower operational costs and maintenance savings every year.

Benefits that make stakeholder buy-in easier

Ongoing energy savings

Lower maintenance costs

Prolong the life of equipment

Save on replacement costs


Helps meet sustainability goals




Eligible Costs

Is EBC right for you?

You may qualify for incentives if your chilled water system:

  • Cools an area greater than 50,000 square feet

  • Is more than three years old

  • Isn't scheduled for replacement in the next two years

  • Hasn't been retrofitted in the past three years

You must also have an annual electricity demand greater than 50 kW. And, if you lease your building, you'll need the owner's consent.

Typically, the best candidates for EBC are:

  • Condominiums and apartments
  • Offices, malls, large retail stores and hotels
  • Hospitals, universities, schools and municipal buildings

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