How Much Energy Is Used to Heat and Cool American Homes?

In 2009, 48% of energy consumption in US homes was for heating and cooling.

Almost half of the energy used in American homes is for heating and
cooling. Before 2009, more than half of all energy used in American homes
was for heating and cooling. In 1993, for example, about 58% was used to
heat and cool the homes. This reduction in energy used for temperature
control is thought to be the result of several factors, including improved
window performance, better insulation in homes and more energy-efficient
heating and cooling equipment.
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