Wireless Superchargers

Wireless Superchargers

Wouldn't this be brilliant?
No cables to worry about and so convenient.

Grinnin'.VA | July 25, 2014

Yes, it would be brilliant if it worked efficiently and effectively.

However, I think this is in the category of waving the magic wand.

Ron :)

jordanrichard | July 25, 2014

and you think people are concerned as is about EMF. I don't see how one can transmit energy without a huge amount of radiation.

Raixie | July 25, 2014

All transformers work this way. The EV1 also did.

Dramsey | July 25, 2014

Jordan, electromagnetic fields aren't radiation in the classic sense. However, some people are still very, very concerned about them, despite the lack of epistemological evidence.

draconious_z | July 26, 2014

To send power wirelessly, the charger needs to use 2 to 5 times as much power as it would if you just plugged it in... If the plower plant that charger is feeding off of, is a coal plant, your burning that much more coal just because you do not want to get out of your car and plug it in.

The only way wireless charging should be used, is on the road, at stop lights... or maybe to power up a WHOLE race track and have an EV race with NO battery on board.

Timo | August 13, 2014

Magnetic coupling allows about 75-90% efficiency about 30 cm (one foot) away, not 50-20%. You can get closer than that with cars.

Qualcomm Halo isn't quite "supercharger": 20kW, not 120kW.

garyelder | August 13, 2014

This is Tesla, and Nicola devoted his life to transmitting power wireless so I think it would be very appropriate for the Tesla to have this feature.

SamO | August 13, 2014

Power Transfer Levels

A variety of power transfer solutions have been developed to suit a broad range of vehicle types, from small urban commuters to high performance racing machines:

3.3kW systems on vehicles including two Citroen C1 passenger cars that have been proven in the UK CABLED EV trial
7kW system on the Rolls Royce Phantom 102EX Experimental Electric Vehicle – designed to get feedback from Rolls Royce customers on luxury EVs
20kW system on the Lola-Drayson B12/69 EV Racing Car taking EV into the world of high performance motor sports at speeds of over 200mph (320kmph)


3seeker | August 13, 2014

I'll add to garyelder's comment.

Indeed, Nikola Tesla already had the solution for wireless electricity over long distances, as in thousands of miles, using the earth as a conductor.

It's called Wardenclyffe Tower.

If only someone could pick up where he left off a hundred years ago...

Brian H | August 13, 2014

If only there was an infinite pool of money to pay for all the free-to-receive power he wanted to broadcast.

Dramsey | August 13, 2014

How many times to people need to be reminded that the Wardenclyffe Tower never worked?

Timo | August 14, 2014

Not the way these "free energy" people want it to work anyway.

I believe Tesla did mean it to replace wires in "grid", so you would need quite a few "towers" everywhere to receive wireless transmissions. Tesla was not stupid, he did actually understand magnetic coupling principle a lot earlier than anybody else, but he also couldn't get it to work in long distances.

What could have happened if Tesla would have continued to have funding is that actual power lines would use cables, but homes get their power using receiver towers from strategically placed transmit towers. I think he wanted to use low band radio frequencies that bounce from ionosphere but without testing if that actually works he couldn't know that losses using that would have been way too high. In order to test that he would have needed two "Wardenclyffe Towers".

He probably understood that losses are inevitable, but in his mind electricity would be so cheap that it would not matter. "free" as in "free of charge", not as in "from nowhere".

3seeker | August 14, 2014

Dramsey, to say that the tower didn't work is just sad... and quite frankly so uncalled for in a Tesla forum.

Nikola Tesla was a genius and his tower would have worked, and would have changed the world, if he were allowed to finish that project. Every time I see smog, or a tailpipe, or smell exhaust fumes I am reminded of that. I am convinced that society was on the verge of a great technological advancement a hundred years ago - and thus I believe that Tesla Motors got its name for this very reason, and to give honor to his name. People such as myself are only beginning to realize how great of a man Tesla was and could have been. He probably was the greatest of all scientists.

Timo | August 14, 2014

It would never have worked like Tesla intended. He couldn't know that though.

Earl and Nagin ... | August 14, 2014

if milligause EMF levels such as are discussed on the thread below:

Concern people, how are they going to react to millions of times higher levels required to actually transmit many kW of energy any distance?

Short range (contact) inductive like the EV1 used may make sense but I'm more skeptical of long-range (inches or more) inductive transmission.

This inductive -vs- conductive discussion for EVs has been going on for over 2 decades now and I don't really see it ending. I've charged EVs and toothbrushes both ways and can see other ways to take the. I see merits and problems with each.

Timo | August 15, 2014

My opinion is that both are useful depending of situation. Inductive works well on short distances in places where cables would be impractical. It's that practicality that determines which is better.

Car t man | August 15, 2014

Both will get cheaper to level of triviality, making both widely used..

nikolateslas88 | August 15, 2014

WELL IF its done how nikola tesla wanted it, its 98% efficient world wide!

DTsea | August 15, 2014

Not really. The tesla cult never ceases to amaze.

vgarbutt | August 16, 2014

You cant really call wireless inductive chargers SUPERCHARGERS. They are only good for lower kw levels and are ac, while a Tesla supercharger is 120 kw dc.

Timo | August 19, 2014

But if we would do the helicopter like Leonardo Da Vinci wanted it it could run by one human leg muscles alone and carry tons of stuff.

I agree, tesla cult never ceases to amaze.