without further nuclear power stations" with the result being a 55 to 45% vote against. On September 23, 1990, Switzerland had two more referenda about nuclear power. The initiative "stop the construction of nuclear power stations", which proposed a ten-year moratorium on the construction of new nuclear power plants, was passed with 54.5% to 45.5%. The initiative for a phase-out was rejected with by 53% to 47.1%. In 2000, there was a vote on a green tax for support of solar energy . It was rejected by 67–31%. On May 18, 2003, there were two referenda: "Electricity without Nuclear", asking for a decision on a nuclear power phase-out, and "Moratorium Plus", for an extension of the earlier-decided moratorium on the construction of new nuclear power plants. Both were turned down. The results were: Moratorium Plus: 41.6% Yes, 58.4% No; Electricity without Nuclear: 33.7% Yes, 66.3% No. [ 58 ] The program of the "Electricity without Nuclear" petition was to shut down all nuclear power stations by 2033, starting with Unit 1 and 2 of Beznau nuclear power stations, Mühleberg in 2005, Gösgen in 2009, and Leibstadt in 2014. "Moratorium Plus" was for an extension of the moratorium for another ten years, and additionally a condition to stop the present reactors after 40 years of operation. In order to extend the 40 years by ten more years, another referendum would have to be held (at high administrative costs). The rejection of the Moratorium Plus had come as a surprise to many,