The possibilities of cloud computing are a growing interest in the enterprise world, but implementing new technology into a heavily protected environment is a difficult task that needs careful planning. The main goal of this thesis is to present a step by step process template for implementing cloud technology in the energy trading environment of the subject company. A literature review is completed as the method for obtaining knowledge of the fundamentals of the cloud and the cloud implementation process. The trading environment and cloud are studied by analyzing information technology expert interviews conducted within the subject company, but also by studying cloud implementation cases in the global financial services and energy industry. Based on the learnings of the study, a cloud implementation template was created and verified as functional. Due to high enterprise security demands, the initial phases of the implementation process, such as defining the end product and planning, are at the core of the whole process. A cloud implementation will introduce new needs to the existing environment in the form of technical skills and management skills. The results show that the subject company may obtain several benefits from cloud computing, such as cost reductions and added computing efficiency. In order to support potential change in the environment, a business case for achieving cost savings from on-demand computing resources is presented in addition to the template.