In this paper, we try to clearly outline the opportunities of cloud computing in the context of developing countries, while helping stakeholders grasp the challenges ahead. In particular, we consider the case of the G-Cloud project engaged by the government of Burkina Faso to boost the ICT economy, improve administration-citizen relations, and strengthen the education system. Through this article, we try to show the actors, that the G-Cloud to be a vector of opportunities and sustainable development for Burkina Faso, pre-conditions and challenges are facing particularly in terms of security in the cloud environment and the challenge on the supply in sufficient quantity and quality of electric power.