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Toyota Study: Plug-Ins Could Cut Fuel Use 46%
A three-year fleet test in Strasbourg, France, indicates that plug-in hybrid cars are 46% more fuel efficient than similarly sized conventional vehicles in city driving.
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A three-year fleet test in Strasbourg, France, indicates that plug-in hybrid cars are 46% more fuel efficient than similarly sized conventional vehicles in city driving.
The study was conducted by Toyota, French energy provider EDF and the city of Strasbourg. It tracked about 100 plug-in Toyota Prius hybrids over 2.5 million miles.
Toyota says the plug-ins were 46% more fuel efficient when recharged an average 1.1 times per day. The improvement zoomed to 70% when the vehicles were plugged in 1.6 times per day. The latter rate would reduce running costs by about $14 per 100 miles or $1,800 per year compared to conventional cars, according to the analysis.
The report figures the average net cost per recharge for the plug-ins was about 40 cents. It estimates carbon dioxide tailpipe emissions from conventional vehicles could be reduced as much as 61% by switching to plug-in powertrains.
The plug-in fleet was supported by 145 charging points installed and monitored by EDF. The study says 60% of participants recharged their vehicles at work, 37% did so at home and 3% used charging stations set up in public parking areas.
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