TerraForm Power, Inc. operates clean power generation assets such as solar, wind, natural gas, geothermal and hydro-electricity. The Company also operates hybrid power generation assets.
Definition of a Sphere A sphere is a geometrical figure that is perfectly round, 3-dimensional and circular - like a ball. Geometrically, a sphere is defined as the set of all points equidistant from a single point in space.
Despite the fact that the term âarmillary sphereâ sounds like a high-tech weapon or something from a science fiction movie, it is neither. An armillary sphere is an old tool that is supposed to represent the heavens.