Renewable energy and energy efficiency have been a significant issue for the policy of decision makers. In fact that resource of energy in earth is limited, renewable energy alternatives have started to replace the fossil energy alternatives. So, selection of renewable energy type for industrial or residential applications becomes a question should be solved. In general, evaluating energy systems is a complex analysis that can be defined as a multi-dimensional space of different indicators and objectives. Indeed, a variety of criteria can be applied to identify the suitability of technologies, whereas no ideal family of criteria has been defined in the literature. Hence, decision support for energy planning and management is required. The use of multicriteria decision method (MCDM) techniques provides a reliable methodology to rank alternative renewable energy resources. Preference Ranking Organization METHod for Enrichment Evaluation (PROMETHEE) and Analytic Hierarchy Process (AHP) are two widely methods used to take the appropriate decision to select the best solution among others can be applied. The above two methods are used in a Lebanese context case study in order to determine the priority of one type of renewable energy (wind, hydraulic, solar, geothermal, etc.) over the others and rank the different possible types by using many criteria like cost, environment, operational, site selection, efficiency, etc. The purpose of using of two methods is only for the confirmation of the results achieved. In the first phase AHP is utilized to determine the importance of the criteria and in the second phase PROMOTHEE is used to confirm the choice of the renewable energy technology.