The literature review is an investigation of recent zero net energy research, including peer-reviewed technical journals, government reports, trade journals, performance specifications of technology used in current zero net energy building installations, and other relevant, high-quality sources. Our approach was to cast a wide net to gather information on new and innovative technologies that don’t have full market adoption but could play a significant role in advancing ZNE buildings. The team looked through credible sources of research and literature, specifically avoiding any vested-interest trade industry information. Key sources of literature reviewed include the U.S. Department of Energy Office of Scientific and Technical Information (OSTI), Emerging Technologies Coordinating Council (ETCC), and research laboratories such as Lawrence Berkeley National Laboratory (LBNL), National Renewable Energy Laboratory (NREL), and Rocky Mountain Institute (RMI). In addition, the search was limited to articles published within the last ten years to focus on current building energy technologies and up to date performance and cost metrics.