Let's see how long this decision holds up, In 2000 they decided to switch off old plants by 2011 (labor+green party). This was anulled by end of 2010 by the conservatives. Only because of Fukushima (and pending elections) did they anull this again. The green party has been winning in the last elections since Fukushima, and the ruling conservatives have lost ground. This is their opportunistic way of trying to avoid becoming meaningless.
In 5 years, energy prices will be high, Fukushima will be forgotten, new reactor designs may be available (pushed by Chinese who will have to depend on nuclear?) Let's see what happens then.
In five years renewable energy will be MORE competitive, not less.
The government decision to increase the life time of the nuclear power plant was highly unpopular. In the German society the majority of people were ten years ago already in favor for the shutdown. You can bet that the next government will not have the FDP and CDU in power and that the move to renewable energy has broad support even then.
In 5 years, energy prices will be high, Fukushima will be forgotten, new reactor designs may be available (pushed by Chinese who will have to depend on nuclear?) Let's see what happens then.