Nissan Motor Co. chief vehicle engineer Hidetoshi Kadota demonstrates a quick charge of a Nissan Leaf by a solar-assisted EV charging system at Nissan's global headquarters in Yokohama, Monday, July ... more 
Nissan Motor Co. chief vehicle engineer Hidetoshi Kadota demonstrates a quick charge of a Nissan Leaf by a solar-assisted EV charging system at Nissan's global headquarters in Yokohama, Monday, July 11, 2011. Nissan is testing a super-green way to recharge its Leaf electric vehicle using solar power, part of a broader drive to improve electricity storage systems. In the new charging system, electricity is generated through 488 solar cells installed on the roof of the Nissan headquarters building. Four batteries from the Leaf had been placed in a box in a cellar-like part of the building, and store the electricity generated from the solar cells, which is enough to fully charge 1,800 Leaf vehicles a year, according to Nissan. (AP Photo/Koji Sasahara) less 
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Associated Press | Photo By Koji Sasahara
Mon, Jul 11, 2011 2:12 AM EDT