Japanese work on solar-powered ship
Japan's biggest shipping line Nippon Yusen KK and Nippon Oil Corp said solar panels capable of generating 40 kilowatts of electricity would be placed on top of a 60,000 tonne car carrier to be used by Toyota Motor Corp.
The solar panels would help conserve up to 6.5 percent of fuel oil used in powering diesel engines that generate electricity at any given moment.
Solar panels for an average home usually generate 3.5 kilowatts of electricity.
The system is expected to help reduce carbon dioxide emissions by 1-2 percent, or about 20 tonnes per year, said Hideyuki Dohi, general manager at Nippon Oil's energy system development department.
Nippon Yusen will invest about 150 million yen ($1.4 million) in the solar panel system to be designed by Nippon Oil.
Solar panels capable of generating several kilowatts of electricity have been used on large vessels before but their use has been limited to power for the crew's living quarters.
Damage to the panels from salt and vibration remain hurdles to be overcome.
The ship is scheduled to be completed in December.
"If it's possible, we want to aim for the full commercialization of the system in the next three to five years," Nippon Oil Executive Vice President Ikutoshi Matsumura told reporters.
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