Blockchain technology emerged as a potent tool for revolutionizing energy systems, offering secure transactions and efficient resource management. Blockchain offers transparency by enabling decentralized transactions. Despite adopting blockchainbased solutions, some cybersecurity issues persist in Decentralized Renewable Energy Marketplaces (DREMs). Specifically, data privacy, security, and verifiability remain a concern for prosumers and grid operators. To address such issues, several blockchainbased solutions utilize technologies such as Self-Sovereign Identities (SSIs), Digital Machine Identities (DMIs), and Zero-knowledge Proofs (ZKPs). In this work, we first review the literature to gain insight into cybersecurity issues within DREMs addressed using blockchain technology. Based on our review, we conceptualize a framework that leverages SSIs, DMIs, and ZKPs to address these issues. This work-in-progress shows the potential of these technologies to enhance security, privacy, and trust in decentralized energy transactions, paving the way for more resilient and efficient energy systems.