1. An apparatus comprising: a three dimensional solar installation mapping tool executable by a processor and configured to: identify a first set of estimated locations for calibration points in a roof in a first satellite image, the first satellite image having a first zoom level and a first angle relative to ground; identify a second set of estimate locations for the calibration points in the roof in a second satellite image, the second satellite image having a second zoom level and a second angle relative to ground; derive actual locations for the calibration points using the first and second sets of estimated locations, the first and second zoom levels, and the first and second angles; calculate dimension information for the roof based on the derived actual locations for the calibration points; create a roof mapping using the dimension information; identify one or more keep out areas on the roof mapping, the keep out areas identifying areas where a solar panel should not be installed; and create a layout of a solar panel installation using the roof mapping and the keep out areas.