The solar energy industry is growing - je 12.06.2008 08 UTC

In the age of expensive oil, the solar energy industry is growing. Revenue in Germany last year totaled 5-point-5 Bbillion euros -- a 23 percent rise compared with 2006. But materials such as silicon, usually needed for the production of solar energy, are in short supply. So participants at the Intersolar trade fair In Munich are interested in exploring alternatives.