The teaching methods driven by simulation and other analysis tools are on the rise. Since the methods differ by course outcomes and student technical capabilities, the stage at which to involve simulation or analysis tools varies by instructor. This paper explores the introduction of energy simulation in an architectural design studio course. The study emphasizes on quantifying energy performance during the earlier phases of design. A group of students in two classes were introduced to learning an online energy simulation tool, and the resulting energy performance per student was documented. A wrap up presentation took place to compare energy performance across the proposed schemes. A follow up questionnaire was distributed among the students to collect feedback on several aspects that can enhance both the teaching and learning methods. Students were also surveyed on the value of the tool during the design process. The results of this experimental approach indicate a strong preference to use simulation tools during the early phases of the design and recommendations of suitable building forms. It also includes student feedback and recommendations to assist in future course instruction..