Tag: tower

Solar HALE UAV

Could a flying solar-powered phone tower become a reality?

Alta Devices says its solar devices could allow high altitude unmanned aerial vehicles the…

London’s ‘Walkie Talkie’ tower gets fuel cell plant

London’s ‘Walkie Talkie’ tower gets fuel cell plant

December 10, 2012

Calling green energy fans, over - the latest addition to London’s skyline will be powered by…