One needs to take a pragmatic view. Some people may be willing to adjust their lives to address CO2 emissions, but most people will simply follow the path of least financial resistance.
The Government needs to ensure that that path doesn't represent an increase in total cost without a commensurate environmental gain. As things stand, that's very much in doubt.
Isn't that a bit like saying a porche is useless for shipping freight. electric cars are generally solf for a particular use. In any case, it is simply a matter of designing the control circuits to handle the situation.
You can buy a Porsche quite capable of towing. You can't buy any electric car suitable for towing or long range driving load carrying.
Restricted by their inherent problems from other uses you mean.
Electric motors don't produce torque at high revs, that's a fundamental design limitation. If you use gearing you then increase the load and power consumption, reducing their range. So you end up with a light weight chassis, incapable of towing and bloody expensive to produce.
**Good. I accept your admission that you are wrong.
, but as revs increase the torque tapers off to nothing making them
**Bollocks. Electric motors are quite unlike IC motors, in that maximum torque is generated at zero RPM and continues all the way to maximum, with virtually no fall-off.
Here's a new Audi:
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4,500Nm or torque seems like quite a bit to me. Not enough for you?
The figure seems over-stated to me. 450Nm sound closer to reality. Still, that's plenty of torque for pulling the skin off a rice pudding.
**I suggest you do some learning about electric motors. In any case, I was simply addressing your claim:
"Then there is the fact that an electric car can't pull the skin off a custard."
On 7/9/2012 6:41 PM, Sylvia Else wrote:> On 9/07/2012 2:55 PM, Trevor Wilson wrote: >> On 7/9/2012 2:49 PM, Sylvia Else wrote: >>> On 9/07/2012 1:15 PM, Trevor Wilson wrote: >>>> On 7/9/2012 12:09 PM, Sylvia Else wrote: >>>>> On 9/07/2012 6:39 AM, Trevor Wilson wrote: >>>>>> On 7/6/2012 4:16 PM, Sylvia Else wrote: >>>>>>> Opinions on this vary, but it appears that sometime in the next ten >>>>>>> years, domestic solar power will have an unsubsidised cost that is >>>>>>> below >>>>>>> the daytime domestic grid tarrif. >>>>>>>
**When fuel hits 5 Bucks a Litre, you will likely see a lot of innovative ideas.
**Regardless, we are facing a number of issues that threaten our present lifestyle. These are:
Dwindling supplies of cheap oil.
Increasing demand for oil.
An increasing need to deal with CO2 emissions.
None of the solutions will be without cost. Intelligent thinking can reduce those costs.
You made the point that PV cells were not a nett benefit for the grid. I accept that POV as valid. Given the cost reductions of PV cells, the rise in prices of fossil fuels (both supply related and taxation related), then alternative forms of personal transport will likely be more common. Electric vehicles are ONE, viable form of personal transport. Marry PV cells and electric vehicles and several problems can be dealt with efficiently.
**Now, that is true. Do you imagine that it will always be the case?
In 1908, the average US automobile cost US$3,000.00. In 1909, Henry Ford introduced mass production techniques to the US auto industry and lower the price to $850.00. Further refinements and economies of scale allowed Ford to reduce the price of the Model T to $550.00.
Right now, electric automobiles represent a miniscule proportion of production. Witness the Telsa Roadster. It's performance approximates that of a cheap(?) Ferrari. It is priced similarly. It is built in similar numbers. It is reasonable to accume that, when EVs are built in huge numbers, that costs will fall.
What do you think people will be driving when fuel hits 5 Bucks a Litre?
Graham lives in a shed. It's bigger (I think) than the storage shed I just had built, but not as nice. Yes, he's clearly "loaded", but he would get even more loaded if he sealed up the shed and used gas in it. Better yet, Graham, seal up the shed and just open the gas valve a bit, with no flame. Then you won't have to worry about CO poisoning. Happy dreams!
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More like expecting the authorities.
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You just can't get much better than a person who pretends to be rich having to go extra lengths to keep the spiders out of the shed he lives in, and dreaming of the day he can move on up to a caravan.
huh? I could afford 3 10 room mansions on the Gold Coast next week if I wasn't on the bad tenants list.
I don't see the point in upgrading unless it's substantial.
I have 3 graphics artists on payroll at the moment.
I'm ordering 10 15W amorphous panels today ($1000) to bring me up to
300W total, although the Mono's barely work in winter due to the low slope on the shed roof. And 300AH in batteries ($1400) and not sure what inverter, might get a $2000 inverter charger computer controlled system so I know how to expand later.
It's just open plan living, septic loo in the corner, 12V shower on a mat, spray the place with a huge dose of cochroach surface spray once a month!
No point getting a $10K caravan now, take me a couple months to save $50K, may as well get a mortgage.
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