2023 ASHRAE TECHNOLOGY AWARDS 2023 ASHRAE TECHNOLOGY AWARDS FIRST PLACE CASE STTUDYUDY FIRST PLACE ASE TOWERING INNOVATION: HIGHLY EFFICIENT FROM THE GROUND UP BY ADRIANNE MITANI, P.ENG., MEMBER ASHRAE; GREG SNAITH, P.ENG. 70 Gloucester Street is a 179,000 ft2 (16 630 m2), 29-story residential tower in downtown Ottawa, Ontario. The high-rise is part of the larger Loop by Claridge development, sharing a multilevel podium with a second residential tower that is part of a second phase of construction. Construction of 70 Gloucester was completed in 2021, and at the time of the Technology Award submission the building was 80% occupied. Key design features of the building project included a geothermal and hybrid heat pump system, energy recovery ventilators and a wastewater energy recovery system. 26 ASHRAE JOURNAL ashrae.o rg M AY 2023 GLEB GOMBERGhttp://www.ashrae.org