Since then, GRASS has evolved into a powerful software suite with a wide range of applications in many different areas of scientific research and engineering. For example, it is used to estimate potential solar photovoltaic yield with r.sun.[5][6][7] As of 2015, GRASS is used in academic and commercial settings around the world, and in many government agencies including NASA, NOAA, USDA, DLR, CSIRO, the National Park Service, the U.S. Census Bureau, USGS, and many environmental consulting companies.