Feeds

Diesels greener than battery cars, says Swiss gov report

Get a TDi estate not an EV, and save the planet!

5 things you didn’t know about cloud backup

Swiss boffins have mounted an investigation into the largely unknown environmental burdens of electric cars using lithium-ion batteries, and say that the manufacturing and disposal of batteries presents no insurmountable barriers to electric motoring. However, their analysis reveals that modern diesel cars are actually better for the environment than battery ones.

The revelations come in a new report issued by Swiss government research lab EMPA, titled Contribution of Li-Ion Batteries to the Environmental Impact of Electric Vehicles. The Swiss boffins, having done some major research into the environmental burdens of making and disposing of li-ion batteries - to add to the established bodies of work on existing cars - say that battery manufacture and disposal aren't that big a deal. However, in today's world, with electricity often made by burning coal or gas, a battery car is still a noticeable eco burden:

The main finding of this study is that the impact of a Li-ion battery used in [a battery-powered car] for transport service is relatively small. In contrast, it is the operation phase that remains the dominant contributor to the environmental burden caused by transport service as long as the electricity for the [battery car] is not produced by renewable hydropower ...

A break even analysis shows that an [internal combustion engined vehicle] would need to consume less than 3.9 L/100km to cause lower [environmental impacts] than a [battery car] ... Consumptions in this range are achieved by some small and very efficient diesel [cars], for example, from Ford and Volkswagen.

Actually quite a lot of the new diesels are in the better-than-battery ballpark, according to UK government figures. The notional battery car considered by the EMPA analysts was a Volkswagen Golf with its normal drivetrain replaced by a battery one: but it seems that you would be doing slightly better for the environment to buy an ordinary new Golf with a 1.6 litre "BlueMotion" injected turbodiesel - which would be a lot cheaper. That would consume 3.8 l/100km, not 3.9.

So would a new Mini Cooper D hatchback or a new Ford Focus, actually. And if you could bear to go for something a little smaller - VW Polo rather than Golf - you'd be streets ahead on the environmental front, down as low as 3.4 l/100km with more than 15 per cent of the car's in-service emissions clipped off compared to the 3.9 l/100km battery-car baseline. As the Swiss boffins tell us, it's the in-service energy use and emissions which count most.

You could even treat yourself to a small estate car - the Skoda Fabia - and beat a battery Golf by a large margin in terms of eco-credentials, according to the EMPA analysis.

Of course, battery car lovers will argue that's not the point. Swiss electricity is already largely generated by carbon-free nuclear and hydropower plants (carbon-free provided you don't count all the concrete used to build them, that is). These and other technologies not yet much used (solar, wind, tidal etc) may one day put the battery car far ahead of internal-combustion ones in terms of carbon emissions.

And if nobody buys battery cars now, they'll stay expensive and scarce forever, so it's still possible to view the act of buying one as green even today when they actually do more damage to the environment than the right internal-combustion model.

But if you just want to emit less carbon right away, it seems you should buy a modern eco-diesel rather than an electric vehicle. ®

Secure remote control for conventional and virtual desktops

More from The Register

next story
Boffins attempt to prove the UNIVERSE IS JUST A HOLOGRAM
Is this the real life? Is this just fantasy?
Our LOHAN spaceplane ballocket Kickstarter climbs through £8000
Through 25 per cent but more is needed: Get your UNIQUE rewards!
LOHAN tunes into ultra long range radio
And verily, Vultures shall speak status unto distant receivers
SpaceX prototype rocket EXPLODES over Texas. 'Tricky' biz, says Elon Musk
No injuries or near injuries. Flight stayed in designated area
Galileo, Galileo! Galileo, Galileo! Galileo fit to go. Magnifico
I'm just a poor boy, nobody loves me. But at least I can find my way with ESA GPS by 2017
EOS, Lockheed to track space junk from Oz
WA facility gets laser-eyes out of the fog
China building SUPERSONIC SUBMARINE that travels in a BUBBLE
Shanghai to San Fran in two hours would be a trick, though
prev story

Whitepapers

Gartner critical capabilities for enterprise endpoint backup
Learn why inSync received the highest overall rating from Druva and is the top choice for the mobile workforce.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Rethinking backup and recovery in the modern data center
Combining intelligence, operational analytics, and automation to enable efficient, data-driven IT organizations using the HP ABR approach.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Next gen security for virtualised datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.