EnerGuide Rating System
An EnerGuide Rating measures a home's energy efficiency level 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, sufficiently ventilated and requires no purchased energy on an annual basis.
The EnerGuide Rating System (ERS) is Natural Resource Canada’s system for the energy rating and labelling of products and homes. The EnerGuide rating label is calculated based on standard operation assumptions so that you can compare the energy performance of one house against another.
The EnerGuide ratings are calculated by Certified Energy Advisors from information collected during the analysis of a home. An EnerGuide rating measures the efficiency of the building as a system, including size, space and water heating systems, insulation, windows and doors, and ventilation and air exchange measurements.
City Green provides EnerGuide rating services for new homes and existing homes.
Average Home EnerGuide ratings:
House Characteristics | Typical Rating | As built to the following standards... |
| Unimproved older house | 0 to 50 | pre 1970s building code |
| Partially improved older house | 51 to 65 | 1970s - 1980s building code |
| Fully improved older house | 66 to 75 | 1990s building code |
| Typical new house | 77 | Current building code in BC |
| Energy-efficient house | 80 to 90 | R-2000 home |
| Super energy-efficient house | 91 to 100 | Net zero homes |
By increasing home energy efficiency, British Columbians can also reduce the amount of greenhouse gas emissions we produce - one important step towards addressing energy-related environmental problems.
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