2020 ASHRAE TECHNOLOGY AWARD CASE STUDIES Deep Energy Retroļ¬t Saves Energy, Lowers Emissions for University The project began with a complete energy optimization of the demand across most campus buildings. Then, a complete reengineering of the district heating network was performed. BY OLIVIER MATTE, ENG., MEMBER ASHRAE 48 ASHRAE JOURNAL ashrae.org N OVEM BER 2020https://www.ashrae.org/