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Business: Industrial

EnerGuide Rating System (Existing Homes)

The EnerGuide Rating System (ERS) offers you  a standard measure of your home's energy performance. The rating allows you to compare the energy efficiency of comparable homes in your neighbourhood and across Canada.

Why Should I Have My House Rated?

If you are planning to renovate or sell your home, the rating shows your home's present level of energy efficiency and the level it could achieve with recommended upgrades.

Energy Efficiency Rating

How Is the Rating Determined?

During the walk-through of your home, the energy advisor collects data on home energy systems, house construction materials and the "building envelope" (the walls and roof of the home) to model the home's energy consumption. After performing a blower door test, the advisor uses an energy analysis software called HOT2000 to compare your home with a reference house of a similar size in a similar climatic region. You will later receive a report with recommended renovations and an EnerGuide label.

What Do the Numbers Mean?

A home's energy efficiency level is rated on a scale of 0 to 100. A rating of 0 represents a home with major air leakage, no insulation and extremely high energy consumption. A rating of 100 represents a house that is airtight, well insulated and sufficiently ventilated and requires no purchased energy.

A Guide to EnerGuide for Houses Ratings
House Characteristics Typical Rating
Older house not upgraded 0 to 50
Upgraded older house 51 to 65
Energy-efficient upgraded older house or typical new house 66 to 74
Energy-efficient new house 75 to 79
Highly energy-efficient new house 80 to 90
House requiring little or no purchased energy 91 to 100

Related Programs

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