TOP 10
08 GRAVITYLIGHT
The International Energy Agency reports that 1.3 billion people - 18 percent of the global population - live without electricity, with many depending on kerosene lamps for light. The crowdfunded GravityLight provides a safer, brighter alternative using LED technology and simple kinetics. The end of the device can support a 12 kg bag of sand, rocks, or other minerals. The force of the weight turns the GravityLight’s gears to power a DC generator. The total power output stands at just one deciwatt, enough to power an LED light up to five times brighter (measured in lumens) than a standard kerosene lamp. Once the light runs out, the weight can be lifted and dropped to produce more. With its recent market launch, the project has the potential to improve the lives of communities in undeveloped regions such as Sub-Saharan Africa. 24
August 2015
CLEAN
07
Millions of run on coa the initiativ Clean Coo Energy, an student Ja fans to cre from burn coal or wo inhalation
A MORE EFFICIENT SOLAR DISH
An unlikely blend of military technology a that led to the development of the Stirling development of the most efficient solar d The proof? A pair of 100-square-meter s extensive tests beneath the unforgiving r Pioneered by Swedish company Ripas said to convert roughly 1/3 of the sun’s e making it nearly twice as efficient as stan years of impressive results from these gr to enter the commercial space. Experime Power showed an electricity generation r per dish, or enough to power two dozen power derived from coal would release o dioxide. These benchmarks make the ne for many European nations seeking to m However, Ripasso’s biggest challenge drop in price annually, and the large sola amounts of electricity under constant su funding, CEO Gunnar Larsson is confide