Friday, February 3, 2023
News Another Study Reveals That PHEVs are Not Plugged as Often as Presumed

Another Study Reveals That PHEVs are Not Plugged as Often as Presumed

Plug-in hybrid vehicles are once again under fire for not being as green as marketed

  • The International Council on Clean Transportation (ICCT) is behind the study.

  • Real-world fuel consumption numbers are 42%-67% higher than rated.

This isn’t the first time that studies reveal that plug-in hybrid vehicles are not the hyper-fuel-efficient vehicles they are marketed to be. The finding, or realization, comes from the fact that owners are not as inclined to plug in as often as they should to benefit from the presence of the large battery.

2021 BMW 330e xDrive | Photo: Olivier Delorme

The most recent study, completed by International Council on Clean Transportation (ICCT), using self-reported fuel economy figures cumulated on and data for engine-off distances traveled collected by the California Bureau of Automotive Repair (BAR), shows that ratings and real-world consumption rarely if ever align.

The bottom line is that the study found that “real-world electric drive share maybe 26%–56% lower and real-world fuel consumption maybe 42%–67% higher than assumed within EPA’s labeling program for light-duty vehicles.”

This investigation was spurred by some investigations into the real-world performance of PHEVs in Europe and China. As we’ve reported in the recent past, some countries have partially or completely cut incentives on the purchase or lease of new PHEVs.

The ICCT makes a few recommendations including a downward adjustment to the regulatory utility factor for PHEVs to reflect current real-world performance.

Trending Now

Nissan Shows Off Pole-to-Pole Adventure Ariya EV

Team driving Ariya EV from pole to pole Journey will take 27,000 km, but plenty of coffee Nissan has just revealed the vehicle that...

Refreshed 2024 Mercedes-Benz GLE Coming Next Week

Refresh should include new styling and new MBUX No revolutionary changes expected for mid-cycle update Mercedes-Benz just teased its next model, but this one's...

Mercedes-Benz’s 2024 EQ line-up is getting powertrains updates… and a heat pump!

Mercedes-Benz has not confirmed the updates yet. A new heat pump should help to boost autonomy between charges. A 4x2 mode should also...

Hyundai will Invest $8.5 Billion into EVs, Including a Dedicated US Factory

$5.5 Billion of this investment will go toward a new factory in Georgia that will only build electric vehicles. The other $3 Billion...

Toyota Says the Grand Highlander will Have a Third Row fit for Adults

The Grand Highlander will be a stretched version of the mid-size SUV. Toyota will unveil this model at the Chicago Auto Show on...
Matt St-Pierre
Trained as an Automotive Technician, Matt has two decades of automotive journalism under his belt. He’s done TV, radio, print and this thing called the internet. He’s an avid collector of many 4-wheeled things, all of them under 1,500 kg, holds a recently expired racing license and is a father of two. Life is beautiful. Send Matt an emai


Please enter your comment!
Please enter your name here

This site uses Akismet to reduce spam. Learn how your comment data is processed.