The Fukushima nuclear disaster has contributed to the conservative government of German Chancellor Angela Merkel getting hammered in two state elections on Sunday with the Greens huge winners as their share of the vote doubled.

The Japanese situation had no impact in the NSW election on Saturday (where The Greens flopped in the state lower house, but picked up a seat in the upper house), but in Germany, where nuclear power is a real issue, it was the major factor, judging the reports so far on the results.