We've written before about Honda's production of solar cells, but did you know that Mitsubishi actually ranks as the world's sixth-largest manufacturer of PV cells? Currently, Mitsubishi Electric cranks out about 120 megawatts worth of solar cells a year, although they have the capacity for 150 megawatts. They plan to increase production to 230 annual megawatts by April of 2009. Solar cells are a hot commodity these days as the power industry, just like the automotive industry, is in the process of "greening" their image. In fact, Mitsubishi believes that the worldwide demand for solar cells could quadruple to 10,000 megawatts as early as 2010. If demand remains high, Mitsubishi Electric could increase its output to 500 megawatts by 2012.