This chapter discusses how blockchain technology can be applied to renewable energy systems for organisational sustainability. The chapter mainly uses a Systematic Literature Review (SLR) that follows the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) framework. The various applications, issues, and opportunities concerning blockchain-enabled renewable energy systems were ascertained using literature, reports, and case study analysis. The research findings show that blockchain increases renewable electric involvement by promoting decentralised electric networks, increasing peer-to-peer energy trading more reliant on renewables, and addressing transparency issues through renewable energy tracking and credentialing. However, challenges are also discernible in the technological scalability, regulatory equivocations, and organisational tensions in sufficiently realising the integration’s enormous benefits. Nonetheless, the case experiences of blockchain-based microgrids and the management of carbon footprints suggest that these solutions are timely and potentially benefit organisations. These results have important implications for researchers, practitioners, and policymakers. Management needs to understand that blockchain can help organisations make efficiency improvements to energy usage, increase transparency, and meet sustainability objectives. To remove economic and regulatory enablers, policymakers should implement favourable conditions; to remove the constraints, researchers work to fill the gaps in the literature, such as the scalability and energy consumption of blockchain.