S. Korea tests 'electric road' for buses

2013-08-08 10:00

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Gumi, South Korea – A South Korean city has begun testing an "electrified road" that allows electric public buses to recharge their batteries from buried cables as they travel.

The Korea Advanced Institute of Science and Technology (KAIST), which developed the system, said on Thursday it would be tested over the next four months on a 24km route in the southern city of Gumi.

Pick-up equipment underneath the bus, or Online Electric Vehicle (OLEV), sucks up power through non-contact magnetic charging from strips buried under the road surface.

It then distributes the power either to drive the vehicle or for battery storage

As a result it requires a battery only one-fifth the size of conventional electric vehicles.

The system also eliminates the need for overhead wires used to power conventional trams or trolley buses.

The technology does not come cheap, with each OLEV costing around $630 000.

"The technology is readily available but the question is how to bring down the cost," said Park Jong-Han, manager of the company that produced the OLEV prototypes.

"Once the cost goes down, I believe more cities will be interested in commercialising the new transport network," Park told AFP.

The system has already been partially trialled on a much smaller scale at an amusement park and on the KAIST campus.

Electrifying the road does not require major construction work, as the recharging stations only have to be buried along 10 to 15% of the route at places such as bus stops.

Read more on:    south korea  |  technology

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