An experimental plane flying around the world without consuming a drop of fuel,  has landed Sunday in Silicon Valley, California, after a three-day flight over the Pacific Ocean from Hawaii.

Swiss pilot Pilot Bertrand Piccard landed the Solar Impulse 2 at 11:45 p.m. following a 62-hour, nonstop solo flight. 

The goal of the flight is to promote the use of renewable energy with an aircraft powered by 17,000 solar cells. The plane's wingspan is wider than that of a jumbo jet but its weight is roughly the same as a car's, thanks to its light construction.

BREAKING NEWS #Si2 and @bertrandpiccard just landed in #SF after 3 days of flight without fuel #futureisclean pic.twitter.com/LTRRfXkxNu

— SOLAR IMPULSE (@solarimpulse) April 24, 2016

The Pacific crossing is the most dangerous due to a lack of landing sites in the event of an emergency.

Piccard, who is on a mission to promote alternative energy, said he believed that electric-powered planes carrying up to fifty passengers short distances would be possible within ten years.

But he said passenger aircraft with solar-powered batteries would not be viable for commercial aviation.

The plane is now expected to cross the United States, stopping in New York before a trans-Atlantic flight to Europe, from where the pilots plan to make their way back to the point of departure in Abu Dhabi. 

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