Wireless Power Transmission to Become Big Business Within a Decade


Wireless Charging Display

Wireless Charging Will Be First Introduced As An OEM Option On The Infiniti LE In 2015

“Over the next decade, the most vibrant Wireless Power Transmission (WPT) markets will involve the contactless charging of portable and mobile equipment, in particular consumer electronics and electric vehicles,” says Research and Markets.

Wireless Charging Unit

Aftermarket Wireless Charging Unit By Plugless Power (Nissan LEAF & Chevy Volt Application Ready)

Contactless means wireless, so we’re looking at widespread growth in this form of no-plug charging.

Research and Markets adds this:

“Later, this will lead to contactless power for a high proportion of static consumer, industrial and military electronics. For now, it primarily concerns wireless charging of lithium-ion batteries in portable consumer electronics and in land, water and airborne electric vehicles, particularly cars, both hybrid and pure electric. These travel considerable distances and ready availability of standard, convenient ie contactless, charging capability is key to their widespread adoption.”

We rather like the idea of wireless charging, as it can be installed almost anywhere, including inmanhole covers.  It’s incredibly convenient too.  The only holdback is cost and perhaps efficiency of power transmission.

In the far-off future, wireless charging will likely become standard on most plug-in vehicles.  If it does, then this charging standard battle with CHAdeMO, CCS, Tesla and so on becomes moot.


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9 Comments on "Wireless Power Transmission to Become Big Business Within a Decade"

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This headline brought to you by the year 1914 and Nikola Tesla.


Tessssssla (Elon’s pronounciation) was going to pump up the world at its resonant frequency, a method we now use to communicate with submarines. He never did have a way to charge for it (money). It was going to be a big, socialist world with free power where any long run of wire (fences, telephone lines, etc) would be electrified.

Tesla was a fun guy. There is evidence that he could well have beat Marconi to the first transatlantic radio contact, but didn’t consider it worth his time.

I’m not as optimistic about wireless power, if nothing else because it requires significant standards as those nitwit automakers are not good at getting anything done let alone agree on something good.

Plugless charging is the future. But they need to get the transfer rate up a bit. Plugless Power has a transfer rate of 3.3kWh with 90% efficiency(over 7 hours for a 100 mile battery pack). That’s too slow for a 200+ mile EV.

For this to be viable for the upcomiing 200+ EV mile EVs, it needs to be at 6.6kWh minimum, and 10kWh or higher as a target.

I don’t think it’s the future except for the rich who are too lazy to care about the environment. The heck with the rate, it’s the efficiency losses. Take your example of Plugless Power. Forget the rate for a moment, or assume that they hit 10kW (NOT kWh…., kW is a rate, kWh is a quantity of energy). So if I have a 100 mile pack, if we assume 3.5 miles/kWh, that’s a 28.6 kWh battery. So if you’re losing 10%, that makes 28.6kWh 90% of…. 31.78, so every time you change or drive 100 miles worth, you’re heating the air to the ‘cost’ of 3.18 kWh!!!!! Seriously???? Oh yeah, I get that 3.18 kWh at $0.15/kWh is less than a buck, but with people so concerned about “vampire power” from plugged in electronics in the house, this completely rolls over any of those inefficiencies. I get that 10% loss doesn’t sound like much, but we’re talking 10% loss of a LOT of energy. If they hit 98+%, then give me a call and I might be interested. Otherwise, I’m frankly not so lazy that I can’t pull the cord from the wall/station over to my car.

Every human endeavor that uses energy wastes some of it. Relax.

Yeah, but this wastes a lot for almost no payback. Wireless vehicle charging is for the people who leave the lights on in their house all day long because they can’t be bothered to flip the switch and like the convenience of coming home to a lit house. And, since leaving all the lights in your house on all day long wastes less energy than wireless car charging, that seems a fitting comparison.

They’re going to have to fix this so it is more tolerant of car position, ie., no “manhole covers”. More like a car size pad that sits embedded in concrete.

Wireless charging is only one way not to have to plug in. It is also possible to have a system contact based like for a Roomba. Of course you need contacts that are secured only to give power once the car is over them and the health check has been done, but on the long term that is also part of the solution for the superchargers. Indeed as power goes above 90 KW it becomes very interesting to favor an automtic under the car based system rather then a man handled system, especially if you want to go up to 900 KW and have to raise voltage at 4000 volt for it.