Optimizing Homes with Highest Air Conditioning Energy Usage Could Save 8% of all US Residential Electricity

A new study using detailed home energy data quanti!es the extent, and !nancial and carbon costs, of air conditioning usage. Using anonymized data from approximately 15,000 homes, the study showed that a disproportionate amount of air conditioning use came from a small number of the most ineffcient homes. The data was gathered by the Sense Home Energy Monitor, a consumer product that tracks real-time electricity usage in homes and uses machine learning and device disaggregation to identify individual devices by their energy signatures. The study quanti!ed that:

  • Optimizing the 20% of homes with highest air conditioning energy usage to match the 20% of homes
    with lowest air conditioning energy use could save 8% of all US residential electricity;
  • Customers in the most ine"cient homes spend almost four times as much to cool their homes than
    customers with the most e"cient homes, leading to an average of $882 extra spent on cooling per
  • Potential savings to U.S. consumers is $15.3 billion annually;
  • 115 billion kilowatt hours could be saved annually;
  • 52M tons of carbon emissions could be avoided annually if the HVAC ine"ciency were addressed and;
  • The twenty percent of homes with highest cooling use have a disproportionate impact, accounting for 45% of all cooling consumption nationwide.

Download: Using Home Energy Monitoring Technology to Assess Residential Air Conditioning

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