For years, students in a South African township have seen their parents struggle to use trains for daily commutes, the railways frequently hobbled by power outages and cable thefts.
To respond to the crisis, a group of 20 teenagers invented South Africa's first fully solar-powered train.Photovoltaic panels fitted to the roof, the angular blue-and-white test train moves on an 18m-long (60ft) test track in Soshanguve township north of the capital Pretoria.
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