September 17, 2008
by dlevi
in News, Technical News
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Is Honda’s new Prius an eco-scam?

Honda’s new Plug-in Hybrid vehicle (PHV) arrived for testing in the UK this week. The model is essentially a Prius which uses a combination of electricity and petrol, saving on petrol use by using exclusively electricity for short journeys.

The controversial feature is the Plug-in aspect which means the car can be charged using mains electricity, currently available roadside from one of 40 charging posts installed already in the UK by EDF energy. The car certainly offers a way to minimise the impact of high fuel prices, but beyond that is it no more than an eco-scam? What about the environmental impact of electricity generation for example?

The short answer is that Honda’s new model will simply transfer its carbon footprint to a few hundred miles away - wherever the nearest power station happens to be. It would be nice to think that the energy was coming from wind turbines or hydroelectric power, but statistically this is unfortunately highly unlikely in the UK.

It is hard to establish whether or not the electricity needed per mile from a coal-fired power station is more environmentally damaging than the fuel needed per mile with so many variables in the equation. The numbers are quite different if you drive a Jeep 4×4 rather than a Toyota Aygo for example. In any case it is much of a muchness (with the Aygo at least - the 4×4 comes in second best every time).

The second issue is that there is clearly something absurd about advocating the purchase of a new car (made from nearly one tonne of steel), not to mention one using a 30kg Lithium battery, in order to save the planet.

Some groups have also been quick to point out that the success of this scheme could spell the end of off-peak electricity prices (as has happened in Spain last year), ultimately raising heating and utility bills and further exposing economically vulnerable groups such as pensioners in winter.

The distinction must therefore be made between this car’s potential for saving money at the forecourt, and its ability to reduce the carbon footprint of motoring. Running this car on a daily basis makes economic sense (road tax is zero and fuel costs are lower), though it would be hardly cheap to buy from the showroom (think somewhere in the region of £20k). Once this initial cost is considered the economic appeal of this PHV is drastically reduced.

As for the environment it is hard not to feel that Honda is exploiting the gulf between the average consumer’s desire to be ‘green’ and the actual level of knowledge about the environmental impact of our day to day lives. The concept of buying a new car as an positive environmental gesture requires quite a level of doublethink, while the need for mains electricity simply represents a geographical transfer of emissions to elsewhere.

Perhaps the only way this car can make environmental sense is if charged exclusively by a renewable source, such as rooftop solar panels (seems a little unlikely here in the UK). However EDF’s scheme of installing charging points throughout London suggests Honda and the energy company already have other ideas.

In the end there are only two guaranteed winners if this scheme is successful; Honda and EDF. The economics for the consumer don’t really add up considering the car’s hefty price tag, and environmental concerns seem to be more of a marketing ploy than a genuine motivation in launching the car.

Dejan Levi

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