Posts Tagged ‘Green’

A Better Place

Sunday, October 5th, 2008

I’ve been meaning to write something about this for a while since I read about it in WiredBetter Place is a company formed by ex-SAP product chief Shai Agassi, it’s mission is to end the worlds dependence on fossil fuels for transport.  No small objectives there then. 

Better Place

To be honest I’d never heard of better place until a few months ago.  I came across it while I was doing some reading into alternative fuels, and it struck me as a fantastic idea.  The Wired gives a much better overview than I could, but in short Better Place proposes to build whole new infrastructures for the use of electric cars and vehicles.  To help achieve this Shai has re-thought the business model we use for buying cars and fuel. 

Cars are offered at a discount, subsidised by the energy companies in the same way as mobile phone companies subsidise handsets.  As a customer you subscribe to a monthly energy tariff as you would a mobile phone.  The phone becomes a car, and the cell stations become recharging points. 

With Better Place and the energy companies building the network of charging points and providing a standardised battery technology, the car makers can concentrate of building cars to make use of that infrastructure. 

They’ve already got Israel and Denmark lined up, and Renault/Nissan designing and building cars.  Take a read through the Wired article and see what you think.  It’s an idea that could change the world.

Fisker Karma

Wednesday, June 4th, 2008

I was just looking through some car news and noticed this, the Fisker Karma:

Picture_4

It’s a rather clever hybrid sports car, it even has solar panels in the roof to boost the batteries.  But… it is just me or does the front look a little like the Joker?

Fortunately the rest of the car looks great:

Picture_1

Green fuels again

Tuesday, May 27th, 2008

Just following on from my lost post, I’ve just watched an interesting piece on Channel 4 news about fuel prices and green taxes.

In the piece, one of the talking heads said something like "road pricing is far fairer [than fuel duty] by pricing on distance travelled".  I can’t help thinking that this way of thinking is flawed.  Surely we have to drive behaviour towards more environmentally friendly fuels and vehicles rather than away from travel altogether. 

If fuel and vehicles are taxed based on the CO2 they generate, it seems to me that the carrot and stick are then acting in the right direction.  Especially if some of that tax is aimed at the fuel and car companies rather than the consumer - this would incentivise them towards creating cleaner fuels and cars that can use them. 

Lotus and fuels for the future

Sunday, May 25th, 2008

exige270e

Being a fan of all things Lotus, I’ve been following news about their tri-fuel Exige 270E technology demo with some interest.  It’s essentially a standard Exige that has been modified to run on either Petrol, Ethanol or Methanol - or any combination of the three.  Sensors tell the ECU what fuel is being used and it then adjusts the engines combustion appropriately. 

Although there has been a lot of focus on hydrogen as a fuel for the future, Lotus is arguing that due to the inherent problems and costs involved with hydrogen, synthetic methanol may be a better choice. From my layman’s perspective Lotus arguments seem pretty sensible.

Simply storing hydrogen is difficult, you can either compress it to 700psi, or liquefy it at -230 degrees centigrade, neither of which are best suited for transport in vehicles.  It’s also not very energy dense, I understand it’s something like a fifth the density of petrol, and once you add in the energy spent creating and storing if the well-to-wheel efficiency drops even further.

One of the biggest problems though is that hydrogen will mean a complete change in engine design and use, a hard change that will cost manufactures and support services like petrol stations huge amounts to implement.

Methanol, whilst not a panacea, does offer some advantages.  It’s a liquid at room temperature for a start.  It’s also more energy dense than hydrogen, though not as dense as petrol.  It does however have a higher octane rating - something that allow the 270E to produce more power than the regular petrol based version.

In my view though the biggest advantage has to be that a move over to methanol can be gradual.  The chaps from Lotus reckon most modern engines should be able to run methanol with very few changes.  The main physical obstacles seem to be around the fact that methanol is more corrosive so seals, pipes, tanks etc need to be changed.

That being the case, a change over to methanol would be much simpler for manufacturers.  Potentially they can future proof their cars against future ethanol or methanol fuels now, or at least within a few years.

If new cars were able to use these fuels in various mixes, fuel producers would be able to add synthetic methanol into their fuels and phase out petrol over a period of time.

Of course, methanol still produces CO2, but as it can be synthetically produced from carbon dioxide and hydrogen the potential exists to recover these from the atmosphere or existing industrial waste collection.  The idea being that CO2 emissions at the exhaust will be balanced to a neutral point.

It seems like an interesting technology challenge, and I’m glad to see Lotus taking a lead in it.  What I’d love to see though is Lotus taking a lead in delivering tri-fuel cars to customers.  It would seem like most of the development for their current Elise and Exige range has been done for this project.  If the costs per car weren’t too great it would be a hell of a marketing tool, and would certainly set them apart from their competitors.  Would the other manufacturers follow?  Who knows, but it’s a Toyota unit that Lotus have been working with, so it would be easy for at least one major company to follow.