Designing low power complex embedded systems is a main challenge for corporations in a large number of electronic domains. There are multiple motivations which lead designers to consider low power design such as increasing lifetime, improving battery longevity, limited battery capacity, and temperature constraints, etc. Unfortunately, there is a lack of efficient methodology and accurate tool to obtain power/energy estimation of a complete system at different abstraction levels. The Open People project addresses this topic and proposes a global framework for power/energy estimation and optimization of heterogeneous MultiProcessor System on Chip (MPSoC). Within this framework, a power modeling methodology is defined. This methodology supports all the embedded system relevant aspects; the software, the hardware, and the operating system. Since this year, the Open People platform is available for designers and we propose to present how it can be used to help the designer during the different design steps. During the evening event of the conference, we propose to explain the functionalities of the platform to elaborate power consumption measurements, to estimate power consumption and to explore the different design choices. Furthermore, to help the designers to start with this