In 2000, the German government, consisting of a coalition including the Green party Alliance '90/The Greens officially announced its intention to phase out nuclear power in Germany. Jürgen Trittin, the Minister of Environment, Nature Conservation and Nuclear Safety, reached an agreement with energy companies on the gradual shut down of the country's nineteen nuclear power plants and a cessation of civil usage of nuclear power by 2020. Legislation was enacted in the Nuclear Exit Law. The power plants in Stade and Obrigheim were turned off on November 14, 2003, and May 11, 2005, respectively. Dismantling of the plants is scheduled to begin in 2007. But the Nuclear Exit Law did not ban enrichment stations - one in Gronau has received permission to extend operations. There have been concerns over the safety of the phase-out, particularly in terms of the transport of nuclear waste. In 2005 Angela Merkel won the German federal election in 2005 with the CDU party. She has subsequently announced to re-negotiate with energy companies the time limit for a shut down of nuclear power stations. But as part of her pact with the SPD, with whom the CDU form a coalition, the phase-out policy has for now been retained.