Crank Up the AC, Crank Down the Hybrid Mileage Hybrids lose up to 27 percent of their fuel efficiency when the air conditioning is on, according to a study by the Department of Energy's Idaho National Laboratory. Conventional vehicles only lose 2 to 5 percent. Does that mean hybrid hype is overheated?
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Crank Up the AC, Crank Down the Hybrid Mileage

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Crank Up the AC, Crank Down the Hybrid Mileage

Crank Up the AC, Crank Down the Hybrid Mileage

Crank Up the AC, Crank Down the Hybrid Mileage

  • Download
  • <iframe src="https://www.npr.org/player/embed/5620876/5620911" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Hybrid cars might not be quite so fuel-efficient when the weather turns hot. A study by the Department of Energy's Idaho National Laboratory found that hybrids lose up to 27 percent of their fuel efficiency when the air conditioning is running. Conventional vehicles only lose 2 to 5 percent. Researcher Jim Francfort elaborates on the study in a conversation with Liane Hansen.