What a waste of taxpayers' money given the e.g. $7,500 federal tax subsidy [credits] for the purchase of such vehicles!
Apparently, these plug-in hybrids also do not meet reductions in CO2 emissions as expected!
"Plug-in hybrid vehicles are often touted as a bridge to battery-electric vehicles, promising to slash emissions by operating as EVs for short trips while relying on fossil fuels for longer ones. ...
They only deliver on that promise if they’re regularly charged. Real-world data drawn from the vehicles’ onboard computers shows that’s often not the case.
Using that data, the Fraunhofer Institute could determine how much of that energy came from charging when plugged in. It found that less than a third of 1 million PHEVs in Germany plugged in either occasionally or not at all. ...
Studies have previously shown that PHEVs produce about 3.5 times more emissions than their official ratings would suggest. This new study explains why since it directly assesses how much electricity the vehicles gained from charging. (PHEVs, like all hybrids, can operate in a mixed mode, using both gas and electricity. The study used data straight off the vehicles to disentangle the two.)
One of PHEV’s many shortcomings are their anemic batteries, capable of powering the vehicle for short distances. Some can only traverse a handful of miles, while many sold in recent years can operate on battery power for about 20 to 30 miles. ..."
From the abstract:
"The energy consumption of plug-in hybrid vehicles (PHEVs) is significantly higher in real-world driving than in type approval procedures. An evaluation of one million vehicles highlights this major difference and points to the need for action in EU emissions regulation."
"... Plug-in hybrid vehicles (PHEVs) are sometimes treated as a bridging technology and benefit from favorable credits toward CO₂ fleet targets in European regulations. Type-approval is based on assumptions about high electric driving shares, which are not confirmed in practice. Current OBFCM data show that the real fuel consumption of PHEVs averages around 5.8–6.1 l/100 km, which corresponds to CO₂ emissions of around 140 g CO2/km. Even under optimal charging conditions (= driving exclusively in charge-depleting mode), today's PHEVs do not achieve truly low emission ..."
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