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  • Sunday, November 28, 2010


    Wireless Power; Wireless Charging and Transmission for Mobile Devices, Consumer Electronics, Electric Vehicles, Industrial Markets, and Military Applications
    Richard Martin and Clint Wheelock, 4Q 2010 (Pike Research)

    "…Technological advances in wireless power charging and transmission have shown great promise for enabling plug-free and, in many cases, contactless charging for a wide range of devices and machinery – from mobile phones to electric vehicles to unmanned aircraft.

    "…[S]ystems have evolved to the point of promising the ability to transmit dozens of watts over dozens of kilometers…[A]n active and emerging industry has begun to take shape around wireless power…[that] includes such major manufacturers as General Motors and General Electric, as well as start-ups such as WiTricity, Powercast, PureEnergy Solutions, and Powermat…[but it] remains diffuse…[T]here are a wide range of potential applications…no clear leaders…no industry wide specifications or standards…little agreement regarding the size of the market opportunity and the most promising areas for investment…"

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    "…[O]ne of the primary drivers of WP will be convenience…[It] offers a range of simple and convenient charging modalities, from a mat that will charge several devices at once to a room-based system that will wirelessly charge all devices in a given range or volume…The second driver is cost…[T]he overall cost per watt (or kilowatt) for charging systems will inevitably go down as physical chargers and adapters are removed from the equation…[T]he opportunities posed by advances in wireless power for both cost savings and higher consumer satisfaction are extremely promising…[in] the electric vehicle market… [some] industrial applications…[and] military applications…

    "…[T]here is nothing inherently green about wireless power charging and transmission…However, wireless power has a number of secondary effects with potentially important and far-reaching benefits for clean energy and carbon emissions reductions…[such as the] reduction in the number of cords, adapters, and wall outlets…Moreover, wireless charging is seen as a significant enabler for the adoption of electric vehicles. Many believe that plug-in systems present a large market hurdle for consumer adoption of EVs; the expectation is that in-garage, wireless power stations will dramatically accelerate the EV market when they become available over the next few years…"

    click to enlarge

    "…[W]ireless power transmission…could reduce greenhouse gas emissions in [five] different ways…[1] Eliminating the need for copper-wire transmission grids…[2] Transporting power from remote generation sources, such as wind farms and solar arrays…[3] Collecting and utilizing micro-power from ambient sources, such as cellular networks, that otherwise dissipates…[ 4] Replacing costly and carbon-intensive electricity sources, such as diesel generators, in temporary applications and locales…[and, 5, facilitating the launch of] massive solar arrays into geosynchronous orbit, and beaming power back to Earth in the form of microwaves…

    "Pike Research believes the adoption of wireless power charging and transmission devices, particularly for mobile devices, consumer electronics, and electric vehicles, will climb steadily over the next five years and then accelerate rapidly as prices fall and WP systems are integrated into many everyday products…Pike Research believes that worldwide revenues from wireless power transmission and charging systems will reach $11.8 billion by 2020, with a compound annual growth rate (CAGR) of 36%."


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