Packing Factor : The ratio of array area to actual land area or building envelope area, for a system; or, the ratio of total Photovoltaic cell area to the total module area, for a module
US Department of Labor, Electric Power eTool: Glossary of Terms, Occupational Safety & Health Administration OSHA, Washington, D.C., USA 2010. https://www.osha.gov/SLTC/etools/electric_power/gl ossary.html, (OSHA/ Electr Pwr - Amer) {618}