Redesigned Fuel Economy Label
As required by the 2007 Energy Independence and Security Act (EISA), with the introduction of advanced-technology vehicles in the U.S. new information should be incorporated in the Monroney label of new cars and light-duty trucks sold in the country, such as ratings on fuel economy, greenhouse gas emissions, and other air pollutants. The U.S. Environmental Protection Agency and the National Highway Traffic Safety Administration (NHTSA) conducted a series of studies to determine the best way to redesign this label to provide consumers with simple energy and environmental comparisons across all vehicles types, including battery electric vehicles (BEV), plug-in hybrid electric vehicles (PHEV), and conventional internal combustion engine vehicles powered by gasoline and diesel, in order to help consumers choose more efficient and environmentally friendly vehicles.
As part of the research and redesign process, EPA conducted focus groups where presented participants with several options to express the consumption of electricity for plug-in electric vehicles. The research showed that participants did not understand the concept of a kilowatt hour as a measure of electric energy use in spite of the fact that this is the metric used in their monthly electric bills. Instead, participants favored a miles per gallon of gasoline equivalent, MPGe, as the metric to compare with the familiar miles per gallon used for gasoline vehicles. The research also concluded that the kW-hrs per 100 miles metric was more confusing to focus group participants compared to a miles per kW-hr. Based on these results, EPA decided to use the following fuel economy and fuel consumption metrics on the redesigned labels: MPG (city and highway, and combined); MPGe (city and highway, and combined); Gallons per 100 miles; kW-hrs per 100 miles.
The proposed design and final content for two options of the new sticker label that will be introduced in 2013 model year cars and trucks were consulted for 60 days with the public in 2010, and both included miles per gallon equivalent and kW-hrs per 100 miles as the fuel economy metrics for plug-in cars, but in one option MPGe and annual electricity cost are the two most prominent metrics. One of the design options had a letter grading system from A to D and the rating would have compared a given vehicle’s fuel economy and air pollution to those of the entire fleet of new cars. The letter grade system was opposed by carmakers and rejected after the public consultation. In November 2010, EPA introduced MPGe as comparison metric on its new sticker for fuel economy for the Nissan Leaf and the Chevrolet Volt.
Read more about this topic: Monroney Sticker
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