Electronics giant reveals solar-powered smartphone renewable energy, technology |26 February 2016| Barcelona Japan’s Kyocera Corporation introduced a pioneering solar-powered smartphone at the Mobile World Congress in Barcelona this week. The prototype on show in the Catalan capital had a solar panel built into the screen. Named one of the prestigious 2015 Top 100 Global Innovators by Thomson Reuters, the industry giant’s Kyocera prototype has been developed with the help of French solar power specialists, Sunpartner Technologies. The device can generate one minute of talk time from three minutes of sun; and an app in the phone informs users of the charging potential: from excellent to not charging. There has been no announcement on when or if this product will be brought to market.