As a result, today’s window AC units are up to 40% more efficient than their 1990 counterparts. This is the third time the DOE has raised window AC standards since 1990, the two previous amendments being in 19. In simple terms, it measures the “combined” efficiency of AC when it is actively cooling a room, as well as when the unit is switched on in standby mode not cooling.ĬEER is also different from SEER (Seasonal Energy Efficiency Ratio), which is the metric used by larger AC systems like central air and mini splits, and also raised in 2023. CEER provides a more accurate reading by taking into account how much energy the window AC uses in Standby mode. CEER vs EER and CEER: What’s the Difference?īefore CEER, window AC units were measured by EER or Energy Efficiency Ratio introduced in 1975. The DOE estimates that given 3% discount rate for all benefits and costs, the estimated cost of theĪdopted standards is $176.8 million per year in increased equipment costs, while the estimated annual benefits are $815.8 million in reduced operating costs. The higher CEER pushes AC manufacturers to produce more efficient air conditioners, which in turn benefits both the consumer and the environment. Save homeowners approximately $1.5 billion per year on their electricity bills.Lower carbon dioxide emissions by 106 million metric tons over 30 years.The raised CEER rating intends to achieve two things: Room Air Conditioner with reverse cycle, without louvered sides Room Air Conditioner with reverse cycle, with louvered sides Room Air Conditioner without reverse cycle, without louvered sides Room Air Conditioner without reverse cycle, with louvered sides Amended Energy Conservation Standards for Room Air Conditioners AC Class The higher minimum CEER will apply to new window air conditioners manufactured or imported in the US by 2026. Under the revised standards, the minimum CEER is increased from the current 11.0 to 12.8 for smaller ACs with a cooling capacity of less than 8,000 BTU/h (DOE 10 CFR part 429 and 430). In March 2023, the DOE raised the minimum CEER rating for window air conditioners and portable air cleaners. Sample of a US EnergyGuide and Canadian EnerGuide label showing the CEER What are the New CEER Standards? EnergyStar certified units typically have a higher CEER rating and are at least 10% more efficient than the federal minimum standards. The CEER rating is always displayed in the EnergyGuide label mandated by the DOE. The higher the CEER, the more efficient the unit is. It measures the energy efficiency of window air conditioners and is expressed by a number between 8 and 15. Here’s everything you need to know about the new CEER standards for 2023.ĬEER stands for Combined Energy Efficiency Ratio. The updated CEER rating aims to reduce carbon dioxide emissions and lower consumer utility bills by pushing for more efficient window ACs. On March 23, 2023, the Department of Energy finalized new energy efficiency standards for window air conditioners.
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