Tesla Roadster Electric Car

Submitted by: cliks 8 years ago Tech
/media/76488_TeslaRoadster.flv
Tesla motors present new electric car being manufactured by Lotus in England.
There are 48 comments:
Male 12,365
Having checked responses from Tesla staff to questions on their website, I see that the correct figure is 53KWh, not 58KWh. Which means that the Tesla at full power will completely drain its batteries from maximum charge of brand new batteries in 16 minutes 18 seconds.

Also, the charge time isn`t necessarily 3.5 hours with the special charger - it can be up to 5 hours, depending on how warm it is in your garage. The charging generates heat. Cooling will come on if there is too much heat, but of course that takes power from the batteries and thus increase charging time.

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Male 12,365
Here`s something to think about:

Storage capacity of the batteries - variously claimed as 53KWh and 58KWh.

Peak power output of engine - 185KW (although Tesla Motor`s website also claims over 200KW on the power graph).

Engine efficiency - claimed 95%.

So the engine is drawing 195KW at peak power output, if it is 95% efficient.

If the batteries store 58KWh when fully charged and brand new (the mazimum charge will slowly reduce as the batteries are discharged and recharged repeatly), then...


...at maximum power, the Tesla will completely drain its batteries from maximum charge in 17 minutes and 51 seconds.

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Male 174
I remember seeing this as a concept a few years back, but I never really expected them to put it into production.

Go figure.

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Male 12,365
I`d like to see a "well to wheel" efficiency comparison between an efficient diesel-powered (diesel car engines are 30% efficient in practice, with a 56% theoretical maximum) two-seater car carrying one person and no luggage/shopping/etc and a Tesla in various areas.

I doubt if the difference would be much. The main gain is emissions in areas where there`s a lot of electricty generated from solar/hydro/geothermal/etc.

The compressed air engine is also interesting, though not yet practical. No batteries - electricity drives a compressor which "charges" air bottles (like scuba diving kit). That makes it possible to "refuel" in minutes at a station - you`d just swap your empty bottles for full ones or even, possibly, refill using a compressed air line. That would make "refueling" the car as convenient as refuelling a petrol or diesel car and vastly better than recharging a battery car.

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Male 12,365
Safety is an issue too, by the way. They`re extremely light, which lowers their crash rating even with the materials used. As for the statement that the 7000-odd batteries are protected like nuclear material is in transit, that`s a bit silly. Weight rules that out.
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Male 12,365
Yonyjet: Can you explain how batteries with a total charge of 58KWh can be charged from a USA domestic wall socket in 6 hours? They`re 110V 15A, right? I make that a theoretical maximum charging of 1.65KWh per hour, and that`s assuming 100% efficiency (which will not be achieved). Which means over 35 hours even at 100% efficiency. You`d need to be pulling something like 90A from a domestic plug socket to do it in 6 hours, and that`s not going to happen.

I think the marketing model is right - start with a low-volume high-margin car which looks good and which has far higher performance than most people would epxect from an electric car (which still makes most people think "milk float" or "Sinclair C5"). That would, in theory at any rate, draw far more attention to the electric car market and make a high-volume mainstream car economically viable. Maybe.

However, it`s too expensive and using that performance guts the range.

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Male 278
available now... only $150,000
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Male 3,296
and they will make and affordarble one

the sedan will cos about halff that

and the accord type{meaning cheap} will come out in about 4 years

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Male 3,296
actually it only takes 6 hours from a 120 v wall socket

and theres a converter for 240v to charge it in 3 hours


its electric not hydrogen just electricity yeah the one being used by ur computer right noe

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Male 810
looks like a ferrari from the front and almost the sides.

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Male 438
then.. the car will PAY FOR ITSELF, when compared to either a normal car, or the $40,000 car it was based on. That is if you are willing to drive 270,000 fuel (electricity) efficient miles.

Things get better when the new Lithium Silicon batteries are considered. Driving those 270,000 miles will take about 15 years, and claimed within 4 years Lithium Silicon batteries should increase the range of the car 10 fold meaning it will be more practical than any other car currently made.

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Male 438
chrismeraz chrismeraz is 100% right.

Only LEAD ACID batteries used in hybrid cars cause pollution when speaking in the scope of car batteries and even then it is only the kind of pollution that damages one very small area. Specifically some place in Canada.

Lithium Ion batteries have virtually no environmental impact when produced and properly disposed of (they are extremely flammable and dangerous if disposed improperly).

Furthermore the Testela uses Gen 1 Lithium Ion technology, newer technology spearheaded by Subaru would increase lithium ion capacity 100% to 300% with no weight increase.

The batteries are protected in similar methods that are used to shield nuclear weapons from terrorist attacks when being transported on trailers. They will never explode in an accident.

If we assume that the newer lithium vanadium technology is used, which increases the operational life cycle of the car to say 270,000 miles by increasing the distance it can travel on one charge, then

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Male 12,365
It isn`t ugly because it`s designed and built by a specialist company with a lot of experience in roadsters - Lotus.

A generator capable of doing the job would be too heavy. The car only works at all well because it`s all minimum weight apart from the batteries. Weight kills performance.

SpacemnSpiff...cost to charge the ~7000 batteries...

The figures I can find cite 58 KWh for a full charge. I think 95% efficiency is possible on the special charger, so you`d need about 61 KWh to charge the battery packs to full. How much do you pay per KWh?

That implies an hefty charging time on USA mains. I make it about 30 hours.

I think it would be possible to make a greener diesel car. Although it wouldn`t do 0-60 in 4s, that`s for sure.

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Male 2,159
Not as good a car as a REAL Lotus. And not for sale yet despite being in the public eye for about a year now. And it was in PGR4.
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Male 2,506
now only if they made an affordable one, we wouldnt hav to go to war for oil; its 98 grand for the base, nothing included :| probably a killer for insurance to
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Male 2,781
MAYBE IT CAN BE OUTFITTED WITH A GENERATOR THAT RECHARGES THE BATTERIES WHILE THE CAR IS RUNNING...
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Male 2,344
As long as it doesn`t look like the cars that the dumb drating Japanese make, it`s cool. Look at these retarded ass cars.
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Male 101
I wonder what this would do to someone`s electric bill. Are we talking an extra $50 a month or $500 a month? What happens to the battery if its damaged in an accident? How does it handle bad weather? Good idea but I think it would only work in certain parts of the US/world.
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Male 358
POSER MOBILE! This model appeals to old, fat, bald guys with small packages. I won`t be impressed until they make a TRUCK that can still be MEAN.
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Male 1,111
I`ll wait until the hydrogen lotus comes out. It`ll be at least as efficient if not more.

One thing being that if you go on a trip, you don`t have to stop for a few hours every 200 miles stop at a hydrogen station. (which are working their way through CA for testing and hopefully across the US soon)

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Male 656
its not even ugly like all the other electric cars..... i mean seriously what be upith here...

tesla pownage

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Male 459
so, when it breaks down, do you go to a mechanic or an electrician?
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Male 431
base not bare
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Male 431
98,000 dollar bare price...8000 more bucks if ur a non california resident... fawk that!!! affordability just went out the window
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Male 3,301
"Disclaimer: Quantities stated above are representative, not absolute. I have no affiliation with Tesla."

Oh horsecrap. I know IAB puts up stuff by people who pay him money; I betcha you`re a Tesla representative. xP

Seriously though, I`m waiting for them to make an electric (or hydrogen, or whatever) that can go cross-country. I suppose it`s good for city travel, but I`m all long distance.

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Male 53
I wouldn`t plan on driving this thing much more than 250 miles one way. One of life`s little trade-offs, I guess, but really, everything in life is a compromise. Everything.
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Male 2,703
^^ is spot on.

also, gasoline vehicles are doubly harmful. lots of carbon and other byproducts are produced and released during the gasoline purification stage. so, basically, the electric car is just stopping the car from adding to the pollution output.

im interested, but i would like to know the recharge time. if i was to drive to my vacation, it would be annoying to stop every 200 miles (~2.5-3 hours) and wait another 4-5 hours to charge the thing back up.

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Male 580
I want one. Now.
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Male 53
Oh, and as far as disposal of the batteries; that`s a once-in-a-lifetime deal. They`ll last for 100,000 miles. Even then, Lithium-ion batteries are considered non-hazardous waste and can easily be disposed of or recycled. So don`t worry about that. Just worry about where you`re going to get $100,000 to buy one!
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Male 53
TO: ALL PREVIOUS POSTERS

An internal combustion engine like the one in your vehicle is about 20% efficient. For comparison, even a low-efficiency fossil-fuel power plant starts at about 36% efficiency. The overall power grid output in California is 50% efficient, with only 20% of that energy being produced by coal plants - all the rest pollute much less. So no, it isn`t just "pollution transfer," it actually is "pollution reduction."

If that`s too complicated for you to follow, here`s something more simple: the efficiency of a Tesla is four times as much as a gasoline-powered vehicle that gets 25mpg. If you`re using a quarter of the energy to move about, that`s a big reduction in pollution, no matter how the electricity is generated.

Disclaimer: Quantities stated above are representative, not absolute. I have no affiliation with Tesla.

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Female 1,572
eh pretty cool car I guess
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Male 2,113
cool
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Male 102
/clap
well at least a electric car that doesn`t look gay.
All the other electric cars just want to be "original" and add that futuristic, small compact pooty sci-fi look. ...
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Male 282
There was an article written several years ago about the concept of electric cars. I believe the author said the concept is called "pollution transfer" or something like that. Basically, the power plants generate the toxins instead of the cars. The power plants can generate power more efficiently than a car and more cleanly. Also, the different fuels for power plants in different areas will effect the amount of pollution in that area.

10Bears, very few power plants in the US use coal. Just a little FYI for ya there.

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Male 12,365
It`s left hand drive because Tesla is a USA company and the car is only sold in the USA. If it`s sold at all yet. Which is odd, because it`s designed by Lotus using a Lotus chassis and it`s made by Lotus.

It takes 3 hours to charge using the special charger they fit in your garage. No mention of how long from a standard socket, but it will be a lot longer. Range on a full charge is a couple of hundred miles as long as you don`t thrash it.

Not really eco-friendly because (a) the electricity isn`t and (b) the thousands of batteries need replacing. Every time you charge them up, their maximum charge is reduced (which reduces the performance and range of the car).

I`m not convinced it`s cheaper or greener than a fuel-efficient car. Batteries are far from green to make or dispose of in those quantities and far from cheap to buy, then there`s the enviromental cost and financial cost of the electricty for recharging.

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Male 130
why is it that the two people saying it pollutes just as much are from Europe?

Theres this little thing invented back in 1942 called Nuclear power. Wind, solar, landfill methane, biofuel,Geothermal and Hydroelectricity.

And as for coal there is technology that allows the use of coal and filters out 99.98% of sulfur and 60% carbon dioxide emissions.

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Male 2,859
RickS you`re spot on there. Made in the UK but not available to buy here, only in the US. Gotta love it.
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Male 1,365
Dynamo Hum!
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Male 5,194
Runs for ten minutes before you have to charge it up again, then takes a month to recharge.
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Female 387
Well it doesn`t make it that much less polluting, it`s just that all the pollution happens when making the `leccy, instead of when you`re driving.
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Male 3,314
UM, if it`s made in the UK, why is it a left hand drive? Don`t they have the drivers sitting on the right hand side of the car over there?
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Male 357
smooth....but you will kill a lot of pedestrians because you are driving sooooo silent...
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Male 777
Invalok: A couple of hours, and that`s assuming you used up the battery completely before recharging.
This is (in my book, at least) officially the coolest car in existence.

10Bears: Or hydroelectric power, if you live in my area.

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Male 473
£50,000!!!! holy smoke that`s a lot.
and if it`s electric, where does they electricity come from to charge the car? I`ll tell you... they burn coal.
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Male 2,076
but will chuck norris buy one?
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Male 724
How long does it take to charge it up?
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Male 666
But will it have guns?
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Female 1
Link: Tesla Roadster Electric Car [Rate Link] - Tesla motors present new electric car being manufactured by Lotus in England.
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