"The total number of housing units in the U.S. has steadily grown over the last 30 years. Based on historical record, an increase in the number of homes has correlated with an increase in energy use, including for heating, cooling and appliances. The share of energy used in homes has increased over time. The increase in use of home appliances and electronics, however, could be offset by efficiency gains per unit."
- US Department of Energy, Energy Efficiency Trends in
Residential and Commercial Buildings
Essential Resources from ASHRAE