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Siemens and BMW have teamed up to create a new inductive charging system for electric vehicles to be tested from June 2011. This new system can also be used as a storage unit, which would accumulate the surplus production from renewables such as solar or wind power.

At the last fair of Hannover presented an innovative docking station that could represent the future of electric cars and charging eliminate their problems. This is a technology that works through two coils, one underground and inside the car. Thus, when the car is at a specific point in the pavement, the two coils are placed at a distance very small and there is the inductive load of the vehicle batteries.

One of the most important is the efficiency of energy transfer between the secondary coil installed in the car and the batteries of the same. This technology is achieved an efficiency of over 90 percent in this energy transfer.

In addition, the system will not cause damage to other electronic devices or people, because the magnetic field generating electricity in any case not exceed the recommended limit of 6.25 microteslas international.

The next June, Siemens and BMW tested a prototype with a power load of 3.6 kW. Induction charging systems of this type could be a solution to the problems of loading vehicles usually parked in public places for short periods, like taxis.a