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T Harkness, Will you spot Nuna 2 - the solar-powered car? Telegraph Motoring, 14 August 2004, p 5

In Scandinavia, the Dutch Nuon Solar winner of the 2003 Solar Challenge, Nuna 2, is being tested against the northern European weather. The car is energised by 9 square metres of a three-layer triple junction gallium arsenide solar cell array, permitting conversion of nearly a quarter of the sun¹s radiation into electricity.

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