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Technology

Pay as you go solar power makes energy cheaper

By Jacob Aron

5 October 2011

New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Turn that sunshine into electricity

(Image: Tanja Giessler/Getty)

ROOFS adorned with solar panels are a sign of a well-off household in the western world, where installation fees can often run to five figures. Now a cellphone-based system could bring cheap solar power to sun-drenched regions of Kenya and other African countries.

So says Simon Bransfield-Garth, CEO of solar energy firm Eight19, based in Cambridge, UK. The company has developed a pay-as-you-go solar power system called IndiGo, which consists of a low-cost, flexible plastic, 2.5-watt solar panel that charges a battery. This can be connected to a USB phone charger or…

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