By Kenn Garder, Corporate Accounts Manager, NPI/GPI Corporate Office
The U.S. Department of Energy (DOE) implemented the Appliance and Equipment Standards Program in the 1980s. In 2015, U.S. consumers saved an estimated $63 billion on utility bills, largely due to the increased efficiency of appliances and equipment.
It is estimated that that 60 percent of U.S. houses have a central cooling system, and most new homes are designed and built with central air systems. About 19 percent of those units are heat pumps. Many other technologies can improve the efficiency of these systems. For example, variable speed motors, advanced compressing methods, and a greater area of heat distribution from the coils of the condenser all can reduce energy consumption.
Residential central air conditioners and heat pumps use electric motors and compressors usually housed in a cabinet installed outside the house. A unit’s Seasonal Energy Efficiency Ratio (SEER) is the cooling output during a typical cooling season divided by the total electric energy input during the same period. In short, the higher the unit’s SEER rating the more energy efficient it is. In 2006, the United States increased the national standards for central air conditioners and heat pumps from 10 SEER to 13 SEER.
New efficiency standards from the DOE went into effect in January 2015. Unlike previous standards, the 2015 standards create minimum-efficiency standards that vary by region. There are three regions established using population-weighted heating degree days (HDD). The lower 48 states are divided into these regions: Northern — states with an HDD greater than or equal to 5,000; Southern — states with an HDD less than 5,000; and Southwestern. Click here to see a map of the regions and the SEER requirements.
Federal energy efficiency standards benefit the environment, reducing carbon dioxide created to produce the electricity. They also benefit consumers by reducing energy use and bills. And finally, these standards also benefit manufacturers, as they reduce the potential patchwork of state standards with a single federal standard, streamlining the design and production process.
With 10 years of experience in his current position, Kenn Garder is the central point of contact for NPI/GPI’s national accounts. He also provides technical support to our franchise owners/inspectors and teaches the commercial segment of our training program.
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