The dairy processing sector is striving to lower its contribution to greenhouse gasses, primarily by adopting sustainable processing practices. Prime among these is the focus on improving energy efficiency because lower energy input is both attractive financially and beneficial environmentally. Energy efficiency is improved by retrofitting existing systems and by introducing new technology. Science is currently being developed to address sustainability in a thorough, disciplined manner. This session features university-based research that focus on energy costs and best practices to lower energy usage.