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 ability to stay in the air for much longer than currently possible

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

Calling green energy fans, over – the latest addition to London’s skyline will be powered by fuel cell technology. Dubbed the ‘Walkie Talkie’ tower because of its architectural shape, the 38 storey office building on 20 Fenchurch Street which is being built (artists’ interpretation, pictured) will install a 300kW fuel cell power plant next year. […]