The world’s first independently powered street lighting system could be lighting up a neighborhood near you sometime soon. Barcelona-based researcher Ramon Bargallo has developed a 10-meter-high street lamp powered exclusively by wind and solar power. The system took four years to develop and is suitable for roadways, parks, neighborhoods, and other public areas. The turbine can run between 10 and 200 revolutions per minute, while putting out up to 400 watts. An electronic control system oversees the flow of energy between the solar panel, the wind turbine, and the lighting system.
“It takes very little wind to produce energy. The generator that has been developed can start working at a wind speed of only 1.7 metres per second, whereas current wind turbines need more than 2.5 meters per second,” says Ramon Bargalló. “This low intensity can provide six nights of electricity without wind or sun,” he adds.
According to Gizmodo, streetlights will feature two “100-watt polycrystalline solar panels, an array of Philips LEDs that put out either 3,500 or 4,000 lumens (depending on the streetlight model), and a lithium iron phosphate battery pack that can store enough power to run the lights for up to 3.5 nights per charge.” An optional higher-capacity battery could manage 6.5 nights.
Manufacturer Eolgreen plans to make 700 of these lights this year, and many of them will be installed at various locations throughout Spain in 2015.
Photos by Eolgreen