In this thesis, a QCA on blockchain-based P2P power trading platforms is done in order to identify the main conditions that characterise this type of platforms to be successfully implemented and deployed. To carry out the QCA, two theoretical approaches are considered: the MLP approach and the Disruptive Innovation approach. Next, various blockchain-based P2P power trading platforms are analysed and a total of ten platforms are used as case studies. Five conditions are later considered, which include whether a token is used or not; whether electricity prices are pre-determined by a third-party or locally; whether there is some form of cooperation with the grid operator and/or the local power utility; whether the regulatory framework is friendly on P2P power trading; and whether P2P power trading is geographically limited to a local area. After analysing how these conditions are fulfilled by each case study, six different outcomes are identified. These outcomes range from a pilot project platform to a nation-wide implemented platform. Afterwards, an evaluation on whether the results obtained are acceptable is done by reviewing each case study and examining whether the theoretical approaches uphold. The results obtained in the QCA are deemed valid. Finally, the challenges and requirements for the success of these platforms are identified while carrying out the thesis.