Wireless Charging To Displace Conductive Charging By 2028?

SEP 1 2015 BY STAFF 16

According to a report by Strategy Analytics, wireless charging could displace conductive charging by 2028.

Here’s an overview of that report:

First Wireless Charging Systems for Electric Vehicles May Appear in 2017, says Strategy Analytics

Deployments Limited to Luxury Models at First, Then Extending to the Mass Market That Could Displace Conductive Charging by 2028, With 7.9M Systems

BOSTON, Aug. 10, 2015 /PRNewswire/ — A number of auto makers claim that current conductive charging systems, with their cumbersome and heavy cables, are making plug-in hybrid and electric vehicles difficult to sell. Wireless charging systems are being developed to make the charging experience more convenient for consumers and to encourage them to recharge their vehicles more often.

The Strategy Analytics Powertrain, Body, Safety & Chassis (Automotive Electronics) Service report, 2017: The “Important Year” For Wireless Charging In Electric Vehicles, looks at the progress in wireless charging developments, as well as commenting on possible deployment strategies and forecasting demand for wireless charging systems.

Technology providers believe that wireless charging systems will enter the electric vehicle market as early as 2017, saying that some OEMs have already implemented them in their next product cycle. The SAE (Society of Automotive Engineers) hopes to have its J-2954 standards finalized as early as 2017, with the recommendations released as early as late-2016.

“While the selling point for wireless charging systems is undoubtedly beneficial to the promotion of plug-in hybrid and electric vehicles, they will firstly be offered as costly optional purchase limited to mainly luxury auto brands, when they launch in 2017. Other challenges include the speed of finalizing standards, since it is critical for wireless charging systems to be interoperable, in instances where the consumer buys a different brand of electric vehicle or when charging on public infrastructures,” said Kevin Mak, Senior Analyst in the Automotive Electronics Service (AES) at Strategy Analytics. He added, “Once the hurdles of cost and standardization can be cleared after the first five years of deployment, then the long-term prospects could realize a mass market potential, with the possibility they could even displace conductive charging systems by 2028.”

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16 Comments on "Wireless Charging To Displace Conductive Charging By 2028?"

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David Murray

Well, I would hope these wireless systems are in combination with a traditional J1772 and DC fast charge. Otherwise it would greatly limit where the vehicles could charge.

Bill Howland
HAHA, they’re just guessing. And the “Plugless” thing constantly advertised, both in print, and in pop up ads (Hey, I know Cole has to eat, hehe) must improve if its going to have widespread acceptance. They’d of course, claim ‘widespread acceptance’ already.. but with: 1). 3.0 kw output rather than 3.3 claimed. 2). 28 amp line draw vs 14 or less when plugged in using a Chevy Volt. 3). 134% Total Harmonic Distortion means its ‘smallness’ is only tolerated by utilities since a TESLA SIZED device would cause noticable problems. 4). 82% measured efficiency is good for this technology, but no one would call it great, as well as the low, and and low apparent power factors implied by 2 and 3. Now all these issues can be alleviated, or if they continue selling the 3.0 kw model and sell 100,000 of them, they’ll be as workable as they are now, which is very, as long as they stick to the current product. Extrapolating into the future with much larger models has complications none of these advertisements really address. Its good for charging a Spark, VOlt, ELR, CMAX, Imiev and Plug-In-Prius at the basic rate, as well as (3.6 kw)… Read more »
kdawg

Momentum Dynamics wireless charging system claims to be as efficient as plugging in.

“Efficiency would be on par with a plug Miller said. The wireless portion has demonstrated 91-percent efficiency and Momentum is shooting for 93 percent. On-board chargers (OBC) have similar efficiency at handling current delivered by traditional plug-in electric vehicle service equipment (EVSE), said Miller. So, while the solid cord connection is more-efficient at delivering current to the OBC, losses elsewhere in the power processing and routing make what EVs now rely on no better than Momentum’s setup.”

They can also charge at 25kW, and are working on 50kw and 100kW systems.

Steve Cummings

It is important to compare apples to apples with any claims of efficiencies in the WEVC space, taking into account nuances like comparing direct to battery charging versus going through OBC (note the wording carefully), how much of the efficiency claims are based on power level (the higher the power, the faster the charge, the less parasitic cost) and then total costs. Remembering to include installation and equipment costs (from installing high voltage electrical supply in the home/office, heat management and material costs, vehicle integration costs etc.) and then finally how batteries are affected by daily and regular high voltage charging. For our part we very much look forward to the day when we have a competitor for the market to compare to – especially for home charging.

Steve Cummings
Bill – Plugless is a 3.3kW charger, I promise (we take our claims very seriously as does the FTC). I believe you are referencing a Idaho Nat’l Labs data sheet with a production unit installed on a Volt – at the time they did these tests their facility (like most commercial / industrial spaces) used 208 VAC input voltage and so, as footnoted (#2) the testing was 3.0kW. I am told (I am not an EE) that there might be some confusion about the input power of Plugless as compared to the Volt (read: the output current to the Volt) – this is a common confusion when comparing Plugless to a conductive EVSE where the two currents are nearly identical. Our efficiency claims are based on the full 3.3kW testing conducted by INL (Plugless is installed with a 100mm gap): http://avt.inl.gov/pdf/evse/EvatranWirelessChargingFactsheetAug2013.pdf The THD numbers are correct and as you note have not been a problem, in any case our next generation systems will address, as they will be 6.6kW. Given all that – I’m proud to point out that, in addition to being the first and only production WEVC manufacturer in the world, these INL tests make us the only… Read more »
jelloslug

These devices would be good at a workplace or a destination were people would be there for an extended period of time. The low maintenance aspect would make the more appealing to property owners also.

Brian

“A number of auto makers claim that current conductive charging systems, with their cumbersome and heavy cables, are making plug-in hybrid and electric vehicles difficult to sell.”

Really? Of all the silly reasons EVs don’t sell, it’s the “cumbersome and heavy cables”? Many, gasoline cars have no chance – those hoses are far more cumbersome and heavy than any EVSE cable.

“The SAE (Society of Automotive Engineers) hopes to have its J-2954 standards finalized as early as 2017, with the recommendations released as early as late-2016.”

So they are going to release a standard into the world before it is finalized? Why?!? And who is going to start installing these things in 2016 when they know any part of the standard is subject to change?

Heisenberght

unfortunately my posts get lost again…

however 200 kW inductive charging is reality in berlin since 31.08.2015 (I’ll leave out the link this time, maybe the post gets throug without a link… just google e-bus berlin)

Heisenberght

Cool, this time it worked.

the link is “e-bus.berlin”

and “e-bus.berlin/technik-und-betrieb/”

it’s pretty nice to see the busses on the map… Solaris, 90 kWh battery, 160 kW drivetrain, 13 tons empty weight, 70 person passenger capacity…

Scott

For most people, this is DOA. I have no issues plugging in when I pull in my garage, and would absolutely continue doing it purely based on efficiency.

Lou Grinzo

Same here.

I think this is another example of why we have to look at EVs as being fundamentally different from ICEs. Specifically, there are quirks to “refueling” an EV that don’t apply to ICEs. (You can’t gas up at home, typically, and even using a supercharger is much slower than pumping fossil fuel into a tank.)

I expect wireless charging to catch on for public use, even with the much higher (I’m guessing) cost of the charging-site hardware, but we won’t see plugs disappear from the cars themselves anytime soon, if ever.

Ocean Railroader

My question is does wireless charging cause cancer in that I remember reading that living next to high voltage wires is not a good thing. But wireless charging would be good if it was in a parking deck were no one is around the cars.

jelloslug

Everything causes cancer. If you are really concerned about it though I would suggest that you should not put your favorite easy chair over it when you are not charging.

Someone out there
Bone

I’m quite certain that any company producing these charging systems will measure EMF levels and make sure they are below accepted exposure limits.

Steve Cummings

For our part (since we’re the only company selling WEVC technology to consumers) open 3rd-party testing is important to us – you can refer to both the Idaho National Labs testing sheets – http://avt.inl.gov/pdf/evse/PLUGLESSEvatranStandaloneTestResultsFactSheet.pdf and note that Plugless is certified – http://www.intertek.com/news/2014/03-24-plugless-l2-first-wireless-etl-ev-charger/