Silicon Valley investor Vinod Khosla has a message for and about the clean-tech industry: it’s not about style, it’s about substance.

San Francisco, for example, likes to show off its solar-panel installation at the Moscone convention center, he said. “But it’s a foggy city,” Khosla quipped here during a talk Tuesday at the GoingGreen confab. Toyota’s Prius hybrid may be a hit in Hollywood, but he said, it’s less carbon efficient than biofuel-powered cars and likely won’t penetrate markets in India and China.

“The new green is about engines, lighting, appliances, batteries, gasoline diesel,” Khosla said. “It’s not about clean tech, it’s about main tech. If you’re going to find climate change solutions, it’s got to be about main tech.” (link)