The idea that solar energy will have to wait for a breakthrough to reach grid parity is "crap," he says. He adds: "We're not talking about rocket science. We're talking basic engineering.

General Electric (ge), a large American engineering firm, already has a thriving wind-turbine business and is gearing up its solar-energy business.

Abstract : Taking a company in yunnan with solar water heating system for an example, this paper describe engineering situation and the collector area of solar energy heating water system.