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.
The word hemisphere itself specifically means half of a sphere, and since the earth is considered an oblate sphere, a hemisphere is half. Geography and Climate of the Northern Hemisphere. Like the Southern Hemisphere, the Northern Hemisphere has a varied topography and climate.