International Journal of Scientific Research and Engineering Development

The accelerating global transition toward renewable energy—particularly solar power—has shifted from a strategic objective to an environmental and economic necessity. Despite remarkable progress in solar energy generation, the mechanisms for managing surplus energy and its associated credits remain inefficient and centralised. Existing Renewable Energy Certificate (REC) systems often involve high administrative costs, accessibility barriers for small producers, and risks of data duplication or double-counting (Andoni et al., 2019). This research proposes a decentralised Blockchain-based Solar Credit Transaction System (BSCTS) that converts verified solar generation data into digital tokens, allowing transparent peer-to-peer trading between producers and consumers. By leveraging blockchain’s transparency, immutability, and smart-contract automation, the proposed model establishes an open, cost-effective, and inclusive marketplace for energy credit exchange. This approach supports equitable participation in the clean-energy economy while addressing inefficiencies in existing credit mechanisms.