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The true reason behind behind the recommendation of R1234yf as a refrigerant is that past designs of ACs can be used without much ado. Usage of CO2 implicates new AC designs and subsequent investments. CO2 is virtually inherently safe but greed has the advantage as usual.
"Further insist on nuclear as the only viable propulsion source." You're not really being serious, are you?
@ HD Harvey, I'm proud of you; I couldn't have stated it better.
"Ultimately the renewable energy problem is really a storage problem." No, it's not a problem at all. The H2 can be used in a further catalytic process to synthesize methane which is identical to NG. Methane gas can be stored without losses for long time periods. With the right FCs, methane gas can be converted to electric power as needed.
I would venture to say, goodbye Platinum - forever. As far as H2 is concerned, I'd prefer to have it stored in form of synthetic methane (SM) which is identical to NG. The afore mentioned CNT catalyst is also tolerant to CO poisoning which Platinum is not. So low pressure SM storage offers many advantages in lieu of high pressure H2 storage. BTW, SM is also carbon emmisions neutral.
When is production launch to be anticipated?
"The e-Golf, sporting signature LED headlights, is available from €34,900 (US$47,796), including an 8-year / 160,000-kilometer (99,419-mile) battery warranty." Is the steering wheel and spare tire included in the quoted price??
@ SJC, Several approaches to metal (platinum)free FCs have been published. Here's one of them:
"An elementary school child can understand these things. For some reason entire regiments of renewable academics and other impractical people cannot understand it." Excellent observation! But what is the point of criticizing yourself?
@ EP Do you have even a faint idea of the cost and effort to renaturate a former nuclear plant? Proper disposal of nuclear wastes and fuel rods? A former nuclear plant is being renaturated in Germany at a forecast timetable of approx. 30 years. That'll really be cheap! All these expenses should be added to the monthly power bill of all nuclear proponents and not left up to the taxpayer in general.
A "GREAT" idea. Once this is implemented in all jet-type planes they will no loger be limited to pollution of the lower atmospheric altitudes but can pollute the upper regions as well.
Are you perhaps indirectly suggesting that it would be preferable to build coal - and gas plants, fracking and nukes instead? Has Fukushima left any impressions on you? Is it the taxpayers choice and honor to cover all expenses for renaturation of nuclear plants/sites and removal of nuclear wastes? As sure as I'm still living, I'm convinced that the operating utilities won't cough up one rotten pence to cover expected expenses. Why don't you make an acceptable suggestion of how future supplies of energy can be ensured? And while you're at that, just replace Cameron and his stooges and do it far better.
Looks like a derivative of their EV1 racer. Nice looking but of little practical use. A second "toy" vehicle not suited for a family.
The best about the Cadillac ELR EREV is its' name and that is more history than not. It certainly won't be a competitor for the Model-S. If that is all that GM learned by taking a closer look at TESLA, they might as well pull their stakes and move on. Personally, I think they would have more success reinventing the EV1.
Can anyone be so foolish as to believe that H2 is more dangerous than volatile fossil fuels?
Electrolysis is not really the most efficient method to produce quality hydrogen. Several photosynthesis methods have been discovered that exceed electrolysis. The most recent and promising one is described in: Developing such a method to top performance and scaling it to an industrial level would be a sound answer to existing problems confronting FC technology.
More than likely, the PCM is patented as well as the manufacturing process. Other manufacturers are reluctant to cough up extra cash for patent rights.
Who are you kidding? These batteries will either enter the market in the next two or three years or not at all.
Sigh! It seems as though someone has finally comprehended how to optimize an electric dive train. Well done!
This is a great article about "relativity". Why don't the authors get down to brass tacks and state categorically What the energy density, power density, and price of their battery amounts to!
@ Nick Lyons: The rest of humanity is indeed fortunate to have the opportunity to place their faith and trust and future into the hands of a man with your abilities. If you're so convinced that nuclear power is our salvation, I'm confident that you have the perfect solution for dealing safely with nuclear wastes for the next milleniums. If you don't have such a solution, my advice to you would be not to act as a proponent for the nuclear industrie, because - IMHO - they are even worse than big oil.
Well, you might like to have a look at the following link and convince yourself that, as far as ICEs are concerned, there is something better and far more efficient to have than a Wankel rotary engine.
What a waste of time, effort and money. If it has to be an investment in fossils, why not in something that makes at least a little bit of sense? E.g.:
Maybe I've misunderstood you but I and the rest of the world want to abort pollution. I consider any type of fossil driven extender solely as a means of transition. I'm confident that it's just a matter of time until batteries with appropriate energy and power density, at reasonable prices, appear on the market rendering extenders obsolete. Beyond that, I would only accept FCs (with reasonable prices) as range extenders. It's not only a matter of dwindling resources but also the increasing pollution problematic. I'm not keen on keeping on going as we have been in the past until we have "Beijing conditions" worldwide.
The energy density of the SCiB is certainly attractive but the power density is less alluring. Personally, I prefer the new Panasonic 4 Ah cell with a volumetric energy density of 800 Wh/L. A single cell has the energy equivalent of 13.6 Wh. The power density is higher than that of the SCiB cells. This will more than likely be the next building block in Tesla's newest battery innovation.