As more organizations focus on "greening" their facilities, they are adding all types of clean power including solar, wind, and fuel-cell technology. As an example, California Institute of Technology (Caltech) just fired up its 1.1-megawatt (MW) solar energy system. In Arizona, IKEA powered up its 75,000-square-foot solar array, consisting of two 300-kW systems at its store in Tempe.