Improving the energy efficiency of existing housing will help reduce the country's overall emissions. Commercial buildings have a lifespan of between 25 to 60 years. Space heating currently represents about 55 percent of the energy used in this sector. Reducing space-heating requirements of the existing building stock is an area where the important gains in energy efficiency can be realized. Energy efficiency improvements are more easily achieved in common products and processes, such as motors and motor systems.
Passenger transportation is two-thirds of all transportation in Canada.