Electricity output from renewable sources shot up to 32.5% of Germany's energy mix in 2015 from 27.3% a year earlier, driven by a boom in wind power, the Berlin-based think tank says. But it adds that despite the country's exit from nuclear power, this has led to an increasing energy surplus.
As consumption within Germany hardly moved, electricity exports last year shot up by some 50% to a record 60.9
