The topic of this final paper is the design and engineering of a project based on the idea of cooling using a peltier element, which is powered by solar panels. The paper seeks to determine whether this is feasible, given the ratio of the areas of refrigerators and solar panels required to generate the amount of electricity required to be greater than or equal to the sum of all losses and the power of the peltier element. The paper is divided into three parts: introduction, theoretical part and practical part. Individual phases of work are described through each unit. The introduction gives an insight into the basics of the main elements that were used and that need to be known in order to further connect. In the theoretical part, the topic of the paper is elaborated and the required conditions of the portable cooler are precisely determined depending on the amount of energy. Through the practical part, the process of making and connecting installations is described, and the elements that are available and correspond to the required characteristics are selected. In the practical part, testing in real conditions is also performed. The conclusion tells us about the results obtained by the experiment and compares it with the theoretical results.