Trend News: There’s something incongruous about experts from normally cloudy Germany coming to California, the land of eternal sunshine, to teach the locals about how to harness solar power, dpa reported. But that’s was happening this week in San Francisco, where organizers of the world’s largest solar exhibition, Germany’s Intersolar, launched an American version of their confab amid predictions of a massive solar boom in the ailing US economy. Conference chairman Professor Eicke Weber, …