The transition to renewable energy, particularly through the widespread adoption of distributed solar PV systems, is hindered by significant technical, social, financial, and regulatory barriers. Key challenges include energy poverty and inequality, especially in Mediterranean regions where inefficient housing and rental systems exacerbate the issue. Limited awareness, bureaucratic hurdles, and inadequate financial incentives further slow adoption, while integrating decentralized renewable energy into existing communities remains complex. Unlocking the full potential of Renewable Energy Communities (RECs) requires clear benefits, accessible financial tools, and innovative technologies to enhance the efficiency and longevity of PV systems. SOCIAREM will accelerate the adoption and profitability of PV systems within RECs by overcoming these barriers through an innovative, implementable solution integrated with collective self-consumption schemes. The project will develop advanced tools tailored to diverse socio-economic and geographical contexts, enhancing efficiency, minimizing energy losses, and maximizing renewable energy use. Blockchain-enabled platforms will facilitate secure, decentralized peer-to-peer energy sharing, improving energy autonomy and resilience. Inclusive social data spaces will ensure fair energy distribution while safeguarding privacy, addressing energy vulnerability, and promoting social equity. Citizen engagement will be fostered through gamification and educational tools, ensuring participation across different cultural and behavioural profiles. A consortium of universities, R&D centres, and companies will drive SOCIAREM’s development, ensuring strong scientific and market expertise. The project’s solutions will be tested in four European RECs—Switzerland, Cyprus, Portugal, and Italy—while incorporating insights from Egypt. By reaching TRL7, SOCIAREM will validate its tools’ effectiveness, providing a scalable and sustainable model for RECs.