Wireless Transmission of Power

Search ; Nicolas Tesla

There is research in progress and it is claimed to be possible. As of the present time no demonstrations have been reported as having transmitted signifigant amounts of power of any kind that can be picked up at useful levels of intensity.

why? There is not good way for wiresless transmission into buried structures.

Come to think of it there is no good way to transmit a lot of power wirelessly either.

tesla failed.

There is a way to transmit power by microwave at low efficiency.

rectenna is the search term

http://www.google.ca/search?hl=en&q=rectenna&btnG=Google+Search&meta=

be prepared for low efficiency. It is most often used where getting power there is the factor and efficiency is secondary.

balloons, planes, satellites are candidates

Hill's Station is not a familiar location for me. Please elaborate.

Except for the past 100 years or so, Off grid wireless power has been the only method of transmitting power since the recorded beginning of time. Somehow humans have a short memory. Mass advertisement and lazy government organizations have managed to convince the masses that grid power is somehow equivalent to and representative of modern civilization.

DC wireless transmission of electrical power is most commonly described as a battery.

Solar thermal remains wireless but is non electrical.

Heat, Chemical, Wind, hydro, and Solar electrical are examples of the wireless transmission of power. At some convenient point electrical conductors are customarily employed. Both ac and dc may have heat, chemical, solar, hydro, or wind origin.

Coal combustion is the most popular method of generating electrical power. For efficient Wireless transmission of electrical power, convert the power to chemical, heat, wind, hydro, or utilize solar PV converstion to electrical energy.

Try the following technique used by many people who obtained wireless transmission of power to hill's stations:

a)- from wind electrical system

b)- solar electrical system

c)- up-wather electrical system.

Iulian Somacescu (www.adslexpress.ro/soma)

The most common way of distributing large amounts of electrical power wirelessly (using either ac or dc) is commonly performed by Mother Earth by Her use of LIGHTNING. Some humans have tried to harness this energy by using small rockets fired into a storm cloud using a conductive trail. You can get the lightning to sometimes oblige and concentrate its energy packet where you want it, but how you harness this large energy impulse when you have just asked for it remains a challenge.

NeilJ

Wireless transmision of electricity is not really useful at this stage. Producing the electricity at the location with one of the basic methods is more likely. Use wind, water, or solar power to generate the electricity on site. If you're in hilly terrain then water and gravity may be the better method. If you need a lot of electricity you may need to combine all three sources to reach the required amount.

I'm appalled to find someone brash enough to say Nikola Tesla was a failure… The only reason wireless power is not available today is because J.P. Morgan pulled the financial backing from Tesla when he found that his work on wireless telegraphy could be used for wireless power transmission. J.P. Morgan was heavily invested in "local" power companies and did not want to see Tesla succeed in wireless power transmission. There was also the problem of how to "meter" the wireless power.

Tesla created the wired AC power transmission system we use today and I have no doubt that he could have perfected a wireless power transmission system as well. To say he was a failure is uncalled for since the technology he created has never been adequately tested (wireless power transmission)… After all - those with the money invested in wired power transmission aren't going to venture into the possibility of wireless power… Tesla was way too far ahead of his time.

Who ever said he was a failure?? All I said was his wireless transmission system did not work to distribute power. Tesla had one great success, AC power and the concommitant ability to change the voltage via transformers to eliminate transmission losses by making the current small and the voltage high.

Sure he made lights glow at a distance = parlour trick. You can do the same with a 4 foot flourescent under a HV power line at night.

Tesla made a high frequency spherical field (radio) and if you walked in it with an antenna you could intercept some of that energy. If he used a megawatt to cover a sphere a mile across and you were able to intercept a few watts = not very economic. His radio waves were long compared to common microwave ovens, so they did not heat people in the field.

Tesla did not realize that the power to charge the cavity between the ground and the ionosphere would be huge, far beyond man's ability to produce on a continued basis. Even the 50,000 lightning flashes that occur globally every second fail to do this. I think he lacked a basic mathermatical understanding of what he was doing and just tried to raise larger and larger amounts of $$ to make bigger machines.

Currently we now know that Tesla's method of power transmission over a distance can never work.

I live outside Colorado Springs Colororado where Nicloli Tesla did agood deal of his research. There is even a small museum dedicated to him in town.Lighting up the Plains east of Pikes Peak without wires in the 19th centuary hardly qualifies as a parlor trick.

We as a people have been done a great diservice by J.P. Morgan and those like him. Teslas' funding was pulled because he was going to give electricity away for free.

Of course without realizing it,Tesla was working on microwave power transmssion. We need to continue this endevor.

Does no one else recall the "generator" (a ball of wire) being towed by the space shuttle through the earths magnetic field? Couple that with microwave power transmission and you light up the world!

what tesla did was to consume enormous amounts of power to light up a few dozens of watts of lights. I would not call that efficient transmission of electric power.

In addition, I do not call batteries or wind power etc. 'wireless distribution'

Wireless distribution = power transmission over a distance with no wires, although once the power is there you will distribute it locally with wires if you like. Very short range transmission bt radio(10 feet) or magnetic fields(electric tooth brush charger) can be done.

As for intercepting fields from orbit with conductors, it might be OK for local power, but not good enough for large amounts of power to the ground.

The rectenna systems seem to be capable of about ~10% efficiency since they must make electricity, turn it into microwaves, aim those microwaves, intercept them, and rectify this high frequenecy AC to DC via the Rectenna I spoke of.

They are fine on earth where you have power and you can send it to platform and lose 90%, but hardly workable from orbit with the same losses

As for the orbital generator,

remember that conservation of energy requires that the energy come from

the momentum of your orbital generator.

Using this generated electricity simply causes your orbit

to decay faster than it normally would.

Youd hafta boost your orbit, with chemical energy more often.

Its not for free!

You might as well just use the chemical energy and

generate the electricity the good old fashioned way.

Renewables are the answer.

Why would using energy that is already been expended, (putting the object in orbit, attaining escape velocity etc.) cause the orbit to decay? Although objects in LEO(low earth orbit) do tend to return, evetually, making use of electricity generated by a coil passing through a magnetic field is not going to increase drag or the influence of gravity. Once an object is in orbit, Newtonian Physics still apply. The object will continue in motion in the same direction untill acted upon by an outside force. Just ask NORAD. They have to track hundreds if not thousands of objects in orbit that won't come down, including at least one Delta II second stage that I know of because the re-entry burn failed. A non magnetic item will not be slowed down by passing through a magnetic field.

If you are in orbit and you are a conductor and act like a shorted turn or set of turns and a current is induced and this can be used to work, then this work drawn from the turns or the metalk body being a conductor slows the onbject and leads it into a lower energy orbit

"...... making use of electricity generated by a coil passing through a magnetic field is not going to increase drag ...."

Hmmmmmmm then I should be able to let my generator spin up to speed, then disconnect the motor and get free power.

Your reply is typical... To say something will "never work" is the clear sign of someone who will someday (gauranteed) be wrong.

Tesla made far more contributions than one single invention in wired power trasmission. He invented flourescent lighting in a rudimentary form. Invented the brushless AC motor and the AC generator.

Also each stroke of lightning DOES cause the cavity between the earth and ionosphere to resonate. Read up on the Schuman cavity resonance...

To say something will never work is to say something is impossible. History is piled high with nay sayers who have been proven wrong. Should we add your name to the list?

Tesla (one of my heros) most certainly did not invent the alternating current generator, although he did improve upon it and make it useful by inventing the ac motor.

While it is always risky to say something is impossible, if only for semantic reasons, likewise just because people say something won't work is no predictor that someday it will!

There is enough bad science without all too many of the postings on this site.

You were not specific but I presume the application concerns a remote telecommunication site like a cellular base station, broadcasting or microwave link/relay. Even if you do not forsee to bring uphill a power grid-which is always extremely expensive-you have to compare any other solution with the grid cost because off-grid power generation is very expensive anyway.

You have to start from the total power consumption and to take into consideration a diesel+photovoltaic+wind hybrid system (never forget the diesel generator). You also need to apply several derating factors (e.g. icing for wind, number of non-sunny days/year, etc.) and to have a meteo record at least 10 yars back in time. In the end you have to see what voltages/power (AC-DC) you need to power the equipment (for a non-supervised site it's around 10-15KW) and to choose the right battery bank size, inverters (their efficiency is not 100%!), etc.

It's hard to summarize all details because there are companies doing only that!

Thought you all might find this link interesting and related to this discussion...

http://blog.scifi.com/tech/archives/2006/11/15/mit_working_on.html

T-Rex

www.iscifi.tv

that is just short range resonant transfer. In addition it is only ~5-10% efficient.

They lie when they say it is more efficient.

What they mean is the charging coil draws from the field and when it is not there the field is still maintained. A field with nothing in it to charge = 0 efficiency

The closer together the two are the higher the efficiency.

A toothbrush charger is about 40% and that is a 60 Hz non resonant inductive coupling.

This is just a convenience, if you are in the field it will charge more as you get closer to the transmission point. However some might like the lack of a tether, and you vcan make it charge all manner os stuff if they all have the same standard,''You are not going to run a 1500 watt heater of this

Wireless transmission of power to a light weight hovering platform has been used but the amount of power that can be transmitted is very small and this is a very expensive and inefficient system only justified in special cases.

Your best plan is to generate the power where it is needed by solar cells, wind generator or diesel engine depending on how much power is required.

In a way, your question doesn't make sense:

You want to transmit electricity that by it's own definition is "movement of electrons through a conductive material" So, no wireless here. But, if we change your question into "transmitting power through a non-conductive media" such as air, this is done all day long. Now, I believe you are talking about grid power, than here you have a problem called efficiency. There have been many attempts to do this,but to date, without (commercial) success. in order to do so, we have to increase frequency of your voltage high into into the range that makes it dangerous to all around it, as we can't make the transmitted beam coherent to the degree that it will assume the size of an electrical conductor, and furthermore, we still didn't solve the efficiency problem yet. The transmission of power through the air, and I assume that air is the media you are referring to, you will need to make it conductive.You can do that through ionization, but than again, you will need to invest most of the energy you are generating in first increasing the frequency of your voltage, and second ionizing the air, both will cost you the bigger part of your generated power, Lasers are probably the closest we have got in transmitting power to a distance.

But don't give up, and when you find the way please let me know I WANT to become your partner.

Wangito.

Mankind is already over-dosed by electro-magnetic waves in environment by "Nature" [Which are to control the Universe by the CREATOR] + manmade through Transmissions of all types.

Those SIGNAL levels are HIGH near the Transmitting Antenae & are quite dangerous for Living Orgen, but are quite low out of SAY 500Meters radius. At the receiving end anywhere in the world signal strength is in micro-volts/meter and you have to amplify it to listen/diplay by using a lot more power [almost X1000 or more. Compare the Signal received & Electric Power consumed by Receiving Device; TV, Radio-set etc].

Electrical power transmitted by Conductor-Lines has a very low loss on way;less than 5% in all circumstances.

Think of Power consumed for transmission of Radio/TV/Data transmission by Wire-less & add

the power used on receiving End.

Even in directional Transmission & Reception; though power required is reduced on transmission end; but it is still 1000 times higher than the received sinal.

A time may come but it is still an idea.

Microwaves, as demonstrated by Raytheon in the 1950s. They would need to be rectified of course for DC.

夜色

yes, microwave is a best bet. you are right.

I was told when I was a child

dear ganesh,

Information in the form of ac or dc can be send easily using avalable modulation techniques

but if you are thinking to trasmitt the electrical power from one remote place to other without wire (wire less), it is not feasible yet.

I dont no why you are taking only hills station, if any technique is there suitable to plane areas that can also be apply to hilly places with some extra expenses.