Hanno Renn, a Freiburg taxi driver, invested in a communal solar electricity system on a building in the German town in 1993. “Everyone laughed and said I was wasting my money,” he says.
But now he has paid off his investment and earns a regular income from the electrical company for the power he generates. “I have had the last laugh,” he grins.
Mr Renn is part of a revolution in renewable energy that is sweeping Germany and bringing citizens of every kind into the fight against global warming.
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