[Time] It may be true that being in the right place at the right time never hurt anybody, but as Peng Xiaofeng, the chairman and CEO of LDK Solar, might tell you, guessing correctly where the right place will be — and when — is even better. Four years ago, Peng was traveling in Europe, pondering his next career move, having after a decade left a profitable company that he had founded and run, a Suzhou-based maker of work uniforms. He had been struck, he says now, by how much he had heard and read about renewable energy as oil prices surged globally and environmental concerns — in particular, the emission of CO2 gases — mounted. Neither issue was going away anytime soon, Peng figured. Renewable energy had a big future.