The DOE sets minimum energy efficiency standards in approximately 60 categories of equipment and appliances used in homes and businesses.
The products regulated by the program represent about 90% of home energy use, 60% of commercial building energy use, and 30% of industrial energy use.
Air Compressors is one of the areas covered by these regulations.
Federal test procedures for compressors first came into existence in January, 2017.
The DOE has now published a Federal Register notice of final rule pertaining to energy efficiency standards for compressors. The effective date of this rule is March 10, 2020.
Compliance with the new standards established for compressors in this final rule is required on and after January 10, 2025. (Some states have already implemented).
The DOE estimates the new standards will save consumers $36 million to $45 million on their utility bills each year, or $200 to $400 million over the lifespan of the machines.
The lifetime energy savings for air compressors purchased in the 30-year period that begins with the first full year of compliance will amount to more than 15 billion kilowatt-hours, equivalent to a year’s worth of electricity use in 1.6 million homes.
The newly adopted compressor standards are expressed in isentropic efficiency.
Isentropic efficiency refers to the ratio of the theoretical isentropic power required for a compression process to the actual power required for the same process.
Compressors must meet specific criteria to be tested by the DOE.
All major compressor manufacturers were part of the shaping the new regulations.
Not familiar with isentropic efficiency? Don't worry! Our friends at CAGI, who have long been the unified voice of the compressor industry, have produced a video for consumers explaining what this term in detail.