The paper reports the use of an open source simulation software called GreenCloud to create a novel Problem Based Learning in a laboratory scale. The actual case of Indonesian government’s plan to deploy cloud based data center infrastructure is taken as actual PBL case. GreenCloud enables the students to apply the case in simulation environment and then perform cloud economics analysis. There are three models of cloud architecture could be simulated namely Two-Tier, Three-Tier and Three-Tier High Speed. In addition, in terms of cloud economics analysis, there are three options available to be chosen, i) non energy savings, ii) Dynamics Voltage and Frequency Scaling (DVFS) and iii) Dynamics Shutdown (DNS). It has been shown that the novel PBL model could benefit learning processes.