Air conditioning systems have vastly improved over the past decades. Currently, they use 50% less energy than in 1990. Roughly 66% of homes throughout the United States have air conditioners, and there are more to come. Researchers at Lawrence Berkeley National Laboratory, for example, have reported that by 2030, there will be 700 million air conditioners installed in homes.
Do you have an older air conditioning unit? In general, these will last for around 10 to 15 years when they receive regular air conditioning maintenance. When your existing system is 10 years old, however, you can potentially save 20% on your energy bills when you have it replaced with a new, energy-efficient model.