Of all the people found at the Energy Department's National Renewable Energy Laboratory (NREL), about 85 occupy the unique role of postdoctoral researcher.
The postdocs, as they're known, contribute to the wealth of research capabilities at NREL as they work alongside established scientists. The recently minted Ph.D graduates are hired to work at the Colorado lab for one to three years, on a professional path toward either full-time research or an academic career.
Source: http://www.nrel.gov/