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yoatmon
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Aalso, miscanthus needs neither fetilizers nor pesticides; once planted it'll endure for approx. 4 yrs. and can be harvested twice a year.
Yes, the rate at which mechanical improvements for ICEs are being churned out which could have been had some 30 to 40 years ago, is absolutely remarkable.
@ Roger Pham: To date, this is the best method yet that I've come across to store hydrogen. http://phys.org/news/2014-06-hydrogen-liquid-fuel-atmospheric-co2.html
I,m convinced that a more viable and cheaper method as a REx would be a combination of "power to gas" (carbon neutral) and DRL's FKLG (Free Piston Linear Generator). http://www.dlr.de/dlr/en/desktopdefault.aspx/tabid-10084/161_read-8869/year-all/
There have been few examples of two-stroke engines with a separate closed loop lubrication system. These are just as clean as four-stroke engines but they are more expensive to build. So what! It's cheaper to pollute, so let's just keep on polluting with conventional two-strokes.
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. http://phys.org/news/2013-07-scalable-carbon-nanotube-based-catalyst-outperforming.html http://phys.org/news/2013-06-metal-free-catalyst-outperforms-platinum-fuel.html
I would venture to say, goodbye Platinum - forever. http://phys.org/news/2013-07-scalable-carbon-nanotube-based-catalyst-outperforming.html 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: http://phys.org/news/2013-06-metal-free-catalyst-outperforms-platinum-fuel.html
"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: http://www.greencarcongress.com/2013/09/20130919-mit.html 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!