Before 2021, CECA has been participating in the Green Energy Challenge that focuses on building retrofit.
In 2021, CECA took place in the ECIC competition
ECIC 2021: University Residence
GEC 2020: Orde Street Public School
GEC 2019: Armour Heights Presbyterian Church
GEC 2018: Christie Refugee Welcome Center
GEC 2017: Waterfront Neighbourhood Center
Student Passport 2017: Xalostoc, Mexico
GEC 2016: University of Toronto School
