Presentations from Track A, Energy Systems Innovations, of the U.S. Department of Energy Building America program's 2012 Residential Energy Efficiency Stakeholder Meeting are provided below as Adobe Acrobat PDFs. These presentations for this track covered the following topics: Space Conditioning and Hot Water Systems; Options for Insulating Foundations; Mini-split Systems; Heat Pump Water Heaters; Hydronic Heating Control Strategies; and Exterior Insulation Breakthroughs.